Entries |
Document | Title | Date |
20080199322 | Method And Apparatus For Pumping Out The Liquid In A Container | 08-21-2008 |
20080206067 | High Pressure Pump Control - A feedback control loop for a high pressure pump modifies the accumulator velocity and pressure during solvent transfer. The accumulator velocity is adjusted to maintain the system pressure equal to the expected pressure to thereby eliminate the effect of the flow deficit created by a thermal effect. | 08-28-2008 |
20080206068 | CONCRETE PUMP ATTACHMENT - A attachment for a concrete pump is provided. The attachment includes a generally tubular outer body including an open top end and bottom end. The attachment is connected at its top end to the discharge hose of a concrete pump. A deflection member is located within body and gaps are provided between the deflection member and the inner walls of the body. | 08-28-2008 |
20080219858 | Washer Fluid Pump for a Window Cleaning System of a Motor Vehicle - In the case of a washer fluid pump ( | 09-11-2008 |
20080226466 | Hydraulically Driven Multicylinder Pumping Machine - A hydraulically driven multicylinder diaphragm pumping machine for pumping difficult-to-pump materials comprises pump cylinders each having at one end ( | 09-18-2008 |
20080226467 | IMPELLER WITH ANTI-VAPOR LOCK MECHANISM - An impeller for preventing air-lock in a pump, the impeller in its basic embodiment includes a top plate, the top plate having a center axis and a peripheral edge, a plurality of vanes, each vane attached to the top plate, at least one small protrusion projecting from the periphery of the top plate, and at least one ventilation channel having an outlet located near the protrusion, and an inlet located near the center axis of the top plate. The present invention also contemplates a centrifuge pump and an aerator device having the impeller of the present invention. | 09-18-2008 |
20080226468 | Disposable positive displacement dosing pump - A disposable positive displacement pump is disclosed. The pump includes a pump housing having head portion and a body, the head portion having one or more fluid passage openings. The pump also includes a rolling diaphragm internal to the pump housing and defining a fluid chamber within the pump housing. The pump further includes a piston drive unit configured to reciprocally drive the rolling diaphragm to move fluid in or out of the fluid chamber. A method of dispensing a fluid is also disclosed. | 09-18-2008 |
20080253900 | GAS COMPRESSOR WITH PULSATION ABSORBER FOR REDUCING CYLINDER NOZZLE RESONANT PULSATION - A method for reducing pulsation effects associated with the compressor nozzle of a positive displacement compressor system. A pulsation absorber, having a design like that of a side branch absorber, is installed on the cylinder valve cap or on the cylinder nozzle. The acoustic dimensions and placement of the pulsation absorber are designed to reduce the amplitude of the pulsations associated with the peak resonant frequency of the compressor nozzle response. | 10-16-2008 |
20080267786 | Subsea power fluid recovery systems - Systems and methods for recovering power fluid used to power a device under water and for pumping the recovered power fluid to a fluid container above a surface of the water, the method in certain aspects including: flowing fluid from a subsurface apparatus to a subsurface recovery system, the fluid initially provided to the subsurface apparatus to power the subsurface apparatus; and the subsurface recovery system including a pump system for selectively pumping recovered power fluid to a fluid container above a surface of the water, the pump system having at least one pump and, in some aspects, a first pump, a second pump, and a valve system; the valve system controlling the first pump and the second pump to allow only one pump of the first pump and the second pump to pump recovered power fluid to the fluid container above the surface of the water; and pumping recovered power fluid to the fluid container with only one pump at a time. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b). | 10-30-2008 |
20080267787 | DEVICES AND METHODS FOR USE IN ASSESSING A FLOW CONDITION OF A FLUID - A device for use in assessing a flow condition of a fluid, or a fluid in a flow path, is provided. The device comprises at least one electrochemical cell, comprising a working electrode and at least one other electrode, sufficient for communication with the fluid, or sufficient for communication with a flow path, such that when sufficient fluid is in the flow path, the cell is in communication with the fluid. The fluid comprises a component sufficient to affect a mass-transport limited electrochemical reaction at the working electrode. The device also comprises at least one microcontroller operably connected to the at least one electrochemical cell for providing a potential or a current to the working electrode and for assessing the electrochemical reaction. A method of assessing a flow condition of a fluid, or a fluid in a flow path, is also provided. The device and the method of the present invention may be used in connection with the delivery of a fluid-borne or fluidized drug or medicament to a subject. | 10-30-2008 |
20080273990 | TWO-STAGE HYDRODYNAMIC PUMP AND METHOD - A two-stage pump having an internal fluid pathway or cycle for providing cooling to various parts in the pump, such as, an electric motor in the pump, and also for lubricating at least one or a plurality of bearings in the pump. The pump utilized hydrodynamic bearings that are adapted or configured to provide various passageways, channels and the like for using the fluid that is being pumped by the pump as lubrication for at least one or a plurality of bearings in the pump. | 11-06-2008 |
20080273991 | AIR COOLED PACKAGED MULTI-STAGE CENTRIFUGAL COMPRESSOR METHOD - Provided is a method including routing a compressed gas from a centrifugal gas compressor through at least one of a plurality of air coolers, and directing air flow through the plurality of air coolers, wherein the plurality of air coolers are arranged adjacent to one another in a single plane that is transverse to the air flow. Further provided is a method including removing tube cores from a cooler chamber of a liquid cooler of a centrifugal gas compressor, coupling a chamber port of the cooler chamber to a first port of an air cooler, and coupling a second port of the air cooler to a compressor port of a stage of the centrifugal gas compressor. | 11-06-2008 |
20080286120 | Reciprocating piston pump operating on pressure medium - The present invention relates to a reciprocating piston pump comprising: at least one cylinder with an inlet for a pressure medium; a piston slidable in the cylinder between a first and a second position, and forming a pressure chamber in the cylinder; a first valve member which is received in the piston and which in an open position mutually connects the cylinder spaces on either side of the piston; a second valve member which is received in the piston and which in an open position connects a pressure medium passage formed in the piston to an outlet of the pump; a resilient member urging the piston in the first position; an actuating member connected to the valve members and which are embodied such that in the first position the first valve member is closed and the second valve member is opened and in the second position the first valve member is opened and the second valve member is closed, wherein the piston is moved to the second position by the pressure medium. | 11-20-2008 |
20080310969 | DUAL CHAMBER MIXING PUMP - A dual chamber mixing pump design is disclosed which allows two different sources of fluid to be combined into one mixed product fluid. The pump is divided into two chambers, the proximal chamber and the distal chamber. The chambers are defined in part by a piston having proximal and distal ends and recessed sections. The pump utilizes one common driving mechanism to axially rotate and laterally reciprocate the piston to provide continuous pumping of fluids with reduced pulsations. Each fluid enters through its own pump inlet and outlet. For mixing applications, the outlets are joined together. The flow volume per stroke of each chamber is determined by the lateral stroke of the entire piston assembly and also by the annular areas of the proximal and distal ends of the piston. The flow volume per stroke may be altered by varying the piston and shaft diameters for each chamber. This allows mixing of two fluids in any ratio or proportion desired. Alternating pulses of the two chambers provide a stream which has small segments of alternating fluid from each inlet. Such segmented streams can become more thoroughly mixed through normal flow characteristics of the downstream flow path, providing more effective mixing. | 12-18-2008 |
20080317605 | Progressive Cavity Propagation Pump - A pump is provided that includes a body made at least partially of an elastomeric material and an inlet port and an outlet port, with each port being coupled to the body. The pump further includes a flow passage formed in the body and extending between the inlet port and the outlet port, with at least a portion of the flow passage being normally closed and with the inlet port being fluidicly uncoupled with the outlet port when the pump is in a free-state condition. An actuating device is coupled to the body and is operable for sequentially deforming the body to create a cavity within the normally closed portion of the flow passage, the cavity being in fluid communication with the inlet port, thereby drawing a packet of fluid from the inlet port into the cavity and propagating the cavity and the packet of fluid contained therein toward the outlet port. | 12-25-2008 |
20090004027 | Ventilation of an Operating Element - A method of actuating a piston having a first side and a second side includes the steps of generating a counter-ventilation pulse having a duration and amplitude defined to achieve a predetermined operating speed of the piston and a predetermined damping of a final position of a piston, applying an actuating pressure to the first side of the piston, and venting a second side of the piston in a defined manner using the counter-ventilation pulse so as to prevent a buildup of a maximum possible ventilation pressure. | 01-01-2009 |
20090010768 | Pumping apparatus for shear-sensitive fluids - Pumping systems for pumping shear-sensitive fluids between first and second reservoirs. In various embodiments, the pumping system may include a portable platform that supports at least one diaphragm pump thereon. The diaphragm pumps are arranged for fluid communication with first and second reservoirs. Valve arrangements may be provided that enable the shear-sensitive fluid to be pumped from a first reservoir to a second reservoir. In some embodiments, the valve arrangements enable the user to reverse the flow direction to enable the fluid to be pumped back out of the second reservoir into the first reservoir if too much fluid was initially transferred into the second reservoir. Other embodiments may employ a hand activated nozzle to discharge the pumped fluid. | 01-08-2009 |
20090022602 | METHOD AND APPARATUS FOR RESISTING DISABLING FOULING OF COMPRESSORS IN MULTISTAGE COMPRESSION SYSTEMS - A method of operating a multistage gas compressor system including providing a plurality of compressor stages connected in series, receiving a gas flow having contaminants within a gas passage, and supplying solvent to the gas passage at or upstream of a compressor in a compressor stage of the plurality of compressor stages to entrap or dissolve the contaminants in the gas flow. The method includes resisting disabling fouling of the compressor in the compressor stage from any contaminants entrapped or dissolved in the solvent, for example, by controlling a discharge temperature of the compressor, and/or using a type of compressor that is not susceptible to being disabled by fouling in at least the first stage. The discharge temperature can be controlled by providing the compressor with a pressure ratio selected to provide a desired discharge temperature. | 01-22-2009 |
20090035152 | FLUID PUMP WITH DISPOSABLE COMPONENT - A pump having a disposable fluid contacting portion which defines a fluid inlet and outlet and a fluid path there between is presented. The pump includes a drive portion configured to engage the disposable portion to cause fluid to be moved from the fluid inlet to the fluid outlet. The disposable portion is configured to be selectively coupled to the drive portion. The disposable portion includes a driven membrane which forms a portion of the fluid path, and the drive portion includes a drive membrane. The two membranes are vacuum coupled to each other, whereby movement of the drive membrane causes the driven membrane to move, causing fluid to be pumped through the disposable portion. The pump has particular utility in the medical field for moving fluid from a source to a patient. The pump may include features such as an air-trap, bubble detection, fluid flow controls, and pressure detection. | 02-05-2009 |
20090053075 | ENHANCED COOLING FOR DOWNHOLE MOTORS - A submersible pumping system for use downhole, wherein the system includes a pump, an inlet section for receiving fluid, a pump motor, and heat transfer fins on the motor housing. The fins increase the heat transfer area of the motor thereby providing enhanced cooling of the motor. | 02-26-2009 |
20090104043 | Concrete pump primer - An improved composition for and method of priming a concrete pump line is provided. The flowable composition comprises a solid particulate mixture and water, the particulate mixture being comprised of solvatable polymeric material preferably selected from a group consisting of polyacrylamide, polyacrylate and mixtures thereof; an organic complexing agent preferably of urea; and a buffering agent preferably of citric acid. The invention provides a flowable composition exhibiting improved coating and lubrication to the inner walls of a concrete line as it passes therethrough. The flowable composition mixes quickly with water to form a clear solution, hydrates quickly upon being mixed with water, and provides a composition for use in priming concrete pump lines that does not utilize cement or priming grout slurry. | 04-23-2009 |
20090104044 | Pump controller system and method - A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval. | 04-23-2009 |
20090104045 | High pressure pump having plunger - A high pressure pump draws fluid from a fluid inlet into a compression chamber through an inlet chamber. The high pressure pump has a fluid chamber that communicates with the fluid inlet via the inlet chamber. The high pressure pump includes a plunger and a cylinder. The plunger draws fluid from the inlet chamber into the compression chamber when the plunger moves in a drawing direction. The plunger is capable of pressurizing fluid in the compression chamber when the plunger moves in a pressurizing direction. The cylinder movably supports the plunger therein. When the plunger moves in the drawing direction, fluid in the inlet chamber is drawn into the compression chamber, so that fluid flows from the fluid chamber into the inlet chamber. | 04-23-2009 |
20090110563 | POWER RECOVERY SYSTEM - A power recovery system is used for reducing the total energy consumption in a process such as an industrial treating process or a fluid refining process including the delivery of a fluid under a high pressure. The power recovery system includes a high-pressure pump for pressuring raw water, a reverse osmosis membrane cartridge for treating high-pressure water discharged from the high-pressure pump with a reverse osmosis membrane to produce treated water, a positive-displacement piston pump for pressuring raw water under the pressure of concentrated water which is discharged from the reverse osmosis membrane cartridge without being treated by the reverse osmosis membrane, and a power recovery pump turbine for boosting the pressurized raw water discharged from the positive-displacement piston pump and adding the boosted water to the high-pressure water discharged from the high-pressure pump. The power recovery pump turbine is actuated by pressurized water generated in the power recovery system. | 04-30-2009 |
20090110564 | HYDROSTATIC BEARING ARRANGEMENT FOR PUMP SWASHPLATE HAVING SECONDARY ANGLE - A hydraulic axial piston pump is designed with a secondary swashplate angle for providing improved performance and life. The secondary swashplate angle produces a sideload on the swashplate that is reacted by the pump's housing. A hydrostatically balanced thrust bearing is used to counteract the sideload produced by the secondary swashplate angle. The bearing design includes a tiltable pad or shoe supplied with pressurized fluid from the pump's discharge port. The same fluid that supplies the tiltable pad may also supply the pump's cradle bearings. | 04-30-2009 |
20090116969 | Rail tank car evacuation and transfer system and method - A rail tank car evacuation and transfer system and method. A method includes steps of providing an evacuation and transfer line having an inlet end and an outlet end, causing liquid contained inside the rail tank car to flow into the inlet end to at least a first location between the inlet and outlet ends of the evacuation and transfer line by pressurizing the interior of the rail tank car with a gas, sensing, at the first location, a change in the contents of the line from (a) consisting essentially of liquid to (b) including gas, and shutting off the flow through the line in response to the change. | 05-07-2009 |
20090123298 | METHOD TO PROLONG LIFETIME OF DIAPHRAGM PUMP - A method for operating a diaphragm-type piston pump prolongs the life of the diaphragm. A pump has a predetermined pump volume defined by a length of a piston stroke. The pump having a variable drive. The method includes drawing a first volume of liquid into the pump through a first portion of the piston stroke. The first volume of liquid is less than the pump volume. The first volume of liquid is expelled from the pump through a reverse motion through the first portion of the piston stroke. A second volume of liquid is drawn into the pump through a second portion of the piston stroke. The second volume of liquid is less than the pump volume. The second volume of liquid is expelled from the pump through a reverse motion through the second portion of the piston stroke. At least portions of the first and second portions of the piston stroke are different from one another. | 05-14-2009 |
20090123299 | Method for Driving a Pump Device - During switchover from a suctioning step to a discharging step, a mixing pump ( | 05-14-2009 |
20090129944 | PERISTALTIC PUMP - A peristaltic pump is presented comprising a housing and a rotor assembly supported by the housing. An occlusion bed is slideably mounted in the housing. A door is pivotable about a shaft, which is supported by the housing. A pinion gear is coupled to the shaft and engages a rack on the occlusion bed. Rotation of the shaft causes the occlusion bed to slide toward or away from the rotor assembly. An open portion of a tube retaining system is associated with the housing and a clamping portion of the tube retaining system is associated with the door. The open portion and the clamping portion of the tube retaining system are configured to secure flexible tubing therebetween when the door is in a closed position. | 05-21-2009 |
20090129945 | Osmotic Pump - An osmotic pump comprises a first chamber ( | 05-21-2009 |
20090136363 | Multi-Stage Submersible Pump - Embodiments of the disclosure provide a booster pump to pressurize fluid for use by a pool cleaner in a pool or spa. The booster pump includes a front housing having an inlet, a plurality of diffuser units positioned in the front housing, and a motor housing detachably coupled to the front housing and having an outlet. A submersible motor positioned in the motor housing is operatively coupled to the diffuser units. A space is defined between an outer surface of the motor and an interior surface of the motor housing. A self-contained fluid flow path is formed from the inlet, through the diffuser units, and through the space to the outlet. As the fluid passes over the motor, the motor can be cooled and acoustic output of the booster pump can be dampened. The booster pump can be constructed of plastic for applications in the pool and spa industry. | 05-28-2009 |
20090142198 | APPARATUS AND METHOD FOR HANDLING FLUIDS AT NANO-SCALE RATES - Apparatus and Method for Handling Fluids at Nano-Scale Rates. A linear displacement pump produces non-pulsatile liquid flow rates as low as the nl/mm range. The pump includes a servo motor, a gear reduction, a lead screw, a linear stage, a barrel, and a plunger extending into the barrel and coupled to the stage. A microfluidic interconnect device can be coupled to the barrel. One or more of these pumps can be disposed in a thermally controlled pump assembly that includes a pump housing, a thermally conductive body disposed in the housing and including first and second opposing sides, and a temperature regulating element such as a thermoelectric device disposed in thermal contact with the thermally conductive body on a side thereof opposite to the barrel or barrels of the pumps. | 06-04-2009 |
20090142199 | Quick lift zero flutter oil service pump valve - A suction valve for a positive displacement pump. Two springs are used to actuate a valve plug. A first spring has an uncompressed length greater than a distance between a spring retainer and the valve plug, providing a preload force closing the valve. A second spring has an uncompressed length less than the distance between the retainer and the plug, providing closing force to the plug only after a preselected valve lift. The first spring is relatively light and permits rapid opening of the valve to avoid cavitation. The second spring increases the effective spring constant when the valve is open to prevent flutter and to assist in closing of the valve upon commencement of a discharge pump stroke. | 06-04-2009 |
20090148308 | Electrokinetic Pump with Fixed Stroke Volume - An electrokinetic pump and fluid delivery system is provided that may include any of a number of features. One feature of the fluid delivery system is that it can deliver a fixed volume of fluid with each stroke of the electrokinetic pump. Another feature of the fluid delivery system is that it can accurately deliver fluid at a target flow rate over time. Methods associated with use of the electrokinetic pump and fluid delivery system are also covered. | 06-11-2009 |
20090155091 | ULTRASONIC WAVEGUIDE PUMP AND METHOD OF PUMPING LIQUID - In a waveguide pump and method of pumping liquid, at least a portion of an elongate ultrasonic waveguide is immersed in a liquid reservoir. The waveguide has first and second ends, a nodal region located longitudinally therebetween, and an internal passage extending longitudinally within the waveguide from the first end to a location beyond the nodal region toward the second end of the waveguide. The waveguide also has an inlet at the first end in fluid communication with the internal passage and an outlet in fluid communication with the internal passage and spaced longitudinally from the inlet beyond the nodal region of the waveguide. The immersed portion of the waveguide extends from the inlet to a location that is one of generally longitudinally adjacent, at and beyond the nodal region of the waveguide. The waveguide is ultrasonically excited to cause the waveguide to vibrate at an ultrasonic frequency. | 06-18-2009 |
20090162212 | Peristaltic pump assembly - A peristaltic pump assembly includes a cassette configured to be operatively engaged with a pump housing. A roller assembly is operatively disposed within a cavity formed into the cassette. The roller assembly includes a plurality of rollers that may be arranged in a planetary configuration around a drive shaft. At least one guide element is disposed about the periphery of the roller assembly and in engagement with at least a portion of an outer surface of each of the plurality of rollers. The guide element is configured to guide the plurality of rollers when the plurality of rollers is rotating. | 06-25-2009 |
20090175734 | Power Steering Pump Flow Control - An apparatus for preventing noise from occurring due to cavitation in a power steering pump during low temperature start-up includes the addition of a multi-passage orifice element for adding wetted surface resistance to high viscous fluid flow downstream from a single passage outlet orifice element of a fluid flow control device and upstream of an associated steering gear or steering assist valve. | 07-09-2009 |
20090185916 | ELECTROKINETIC PUMP DESIGNS AND DRUG DELIVERY SYSTEMS - One embodiment of the present invention provides a piston assembly having a piston housing filled with an electrolyte; a housing within the piston housing that divides the piston housing into a first portion and a second portion, the housing having apertures, a shaft connecting the housing to a piston head outside of the piston housing; and a porous material inside of the housing in contact with the electrolyte. Additionally, there are provided a method for filling the delivery chamber with a delivery fluid by withdrawing the piston head from within the delivery chamber. Yet another embodiment provides a method for filling a fluid delivery assembly by withdrawing a shaft from within the fluid delivery assembly to simultaneously displace a moving pump element within the delivery chamber and bypass fluid around a housing in the pump chamber. | 07-23-2009 |
20090202363 | Cooling arrangement for a portable air compressor - A portable air compressor assembly includes a tubular frame having side sections and an assembly longitudinal axis. A support plate between the side sections supports a power unit having a longitudinal axis arranged perpendicular to the assembly longitudinal axis. A compressor having a compressor head and longitudinal axis is mounted to the support plate with the compressor longitudinal axis parallel to the power unit longitudinal axis and perpendicular to the assembly longitudinal axis. A fan connected to the power unit generates an air flow. A ducted cover enclosing the fan includes an air passage directing the air flow from the fan to the compressor head. The ducted cover includes inner and outer covers each including a portion of the air passage. An air scoop extends into the outer cover portion of the air passage to redirect the air flow. | 08-13-2009 |
20090214358 | PIEZOELECTRIC FLUID PUMP - A compact, high capacity pump for pumping fluid. A first one-way valve is between an inlet port and the pump's fluid chamber. A second one-way valve is between the pump's fluid chamber and an outlet port. A diaphragm separates a piezoelectric stack from the fluid chamber. A power source provides power to the piezoelectric stack causing it to expand and contract. The expansion and contraction of the piezoelectric stack causes fluid to be pumped from the inlet port to the fluid chamber through the first one-way valve and causes fluid to be pumped from the fluid chamber to the outlet port through the second one-way valve. In one preferred embodiment, both one-way valves are disc valves. In another preferred embodiment both one-way valves are MEMS valves. | 08-27-2009 |
20090246035 | Pump Module Fluidically Isolated Displacement Device - A pump module for use in a medical fluid dispensing system is provided that includes a pump body having first and second portions where at least one of the first and second portions includes first and second fluid chambers. The module further includes at least one membrane operably associated with the fluid chambers, and first and second actuators operably associated with this membrane for the purpose of displacing the membrane and further for displacing fluid from the first and second chambers. | 10-01-2009 |
20090246036 | METHOD FOR CONTROLLING A COMPRESSED AIR UNIT AND A CONTROLLER AND COMPRESSED AIR UNIT FOR APPLYING SUCH A METHOD - Method for controlling a compressed air unit ( | 10-01-2009 |
20090257888 | MULTIPLE CHAMBER PUMP AND METHOD - Disclosed is a pneumatically powered high-pressure and lightweight fluid pump. The pump is useful for pumping fuel for liquid rocket engines and for transferring liquids from one space vehicle to another. During operation of the pump, liquid is drained from a tank into a pump chamber and the chamber is then pressurized to deliver fluid. The chamber is then refilled from the main tank. An auxiliary chamber supplies fuel while the main chamber is being filled, thereby a steady stream is delivered from the pump. The auxiliary chamber is refilled from the tank while the main chamber is delivering fluid. In order to transfer fluid from the tank to the pump chamber, the pressure in the pump chamber is maintained at a pressure higher than the vapor pressure of the fluid being pumped but lower than the pressure in the tank. | 10-15-2009 |
20090263256 | HEAD FOR A PERISTALTIC PUMP - A head for a peristaltic pump that may be used for delivering ink to a flexographic printing press includes a housing and a roller assembly. The housing is adapted to receive a flexible tube. The housing has a curved wall and a clamp. The clamp secures the flexible tube within the housing. The clamp has an open position and a closed position. The clamp is in the open position when the flexible tube is able to move through an entrance and exit in the housing. The clamp is in the closed position where a first section of the flexible tube is secured in the entrance and a second section of the flexible tube is secured in the exit. The first and second sections are secured where they are not able to be pulled into the housing but are able to gradually slip out of the housing allowing the head to pump in both directions. The roller assembly is rotatable within the housing. The roller assembly rotates about an axis through the housing. The axis is coaxial to the curved wall in the housing. The roller assembly includes at least two compression rollers and at least one guide roller. The compression rollers are peripherally spaced where each of them come successively into contact with the flexible tube during rotation of the roller assembly. Successive compression rollers compress two portions of the flexible tube against the curved wall to confine a finite volume of fluid in the flexible tube. The guide rollers are peripherally spaced between the compression rollers where each of them comes into contact with the flexible tube during rotation of the roller assembly. The guide rollers guide the flexible tube to stay centered with the compression rollers and initiate decompression of the flexible tube to return to a partial compression dimension. Fluid is moved through the flexible tube by rotation of the roller assembly. | 10-22-2009 |
20090269212 | HIGH-PRESSURE COMPRESSOR AND ITS USE AND METHOD FOR OPERATING IT - A high-pressure compressor ( | 10-29-2009 |
20090274564 | Floating cup pump having swashplate mounted cup elements - A floating cup pump assembly incorporating a tilted swashplate structure with cup elements projecting away from either side of the swashplate structure. The swashplate structure is positioned between a first group of matedly engaged piston elements and a second group of matedly engaged piston elements. The piston elements rotate around a first axis and the cup elements rotate around a different axis causing the cups to reciprocate relative to the piston elements. | 11-05-2009 |
20090290992 | WATER JET MECHANISM FOR WHIRLPOOL EFFECT IN PEDICURES OR OTHER APPLICATIONS - A whirlpool foot bath for a pedicure chair having a housing with a removable cap and a motor within the housing. Water in the bath is circulated through an inlet in the cap and out through at least one outlet in the cap. The cap has a central integral sleeve. A method of use is described. | 11-26-2009 |
20090304525 | Linear Drive and Linear Compressor with Adaptive Output - An apparatus having at least one of a linear drive having a stator and a rotor configured for reciprocating movement therein along a drive axis between a first and a second rotor reversal point about a rotor zero position, and a linear compressor, having a piston housing and a compressor piston configured for reciprocating movement therein along a piston axis between a first and a second piston reversal point about a piston zero position and configured to be driven by the linear drive, wherein at least one of the rotor zero position and the piston zero position is adjustable. | 12-10-2009 |
20090304526 | DEBRIS REMOVAL APPARATUS FOR A PUMP AND METHOD - A pump apparatus includes a gear pump assembly interposed between top and bottom drive gear assemblies, and coupler assemblies interposed between a bottom of the top drive gear assembly and a top of the gear pump assembly, and between a top of the bottom drive gear assembly and a bottom of the gear pump assembly. The drive assemblies rotate a pre-feed auger. A cyclone screen located within a cyclone housing is positioned over a shaft of the pre-feed auger and interposed between a blade of the pre-feed auger and the bottom drive gear assembly. An intake housing is positioned over the blade of the pre-feed auger, and regulates fluid intake into the pump. As fluid is taken into the pump, it is caused to spin by the action of the auger. This causes solids to be separated from the fluid and to be expelled through exhaust ports in the pump apparatus. As a result, fewer solids are permitted to travel northward with the pumped fluid, thereby helping to protect the components of the pump. The entire pump may be coupled, at a north end thereof, to a hydraulic pump, hydraulic motor, electric motor, or drive rod/shaft powered at the surface. | 12-10-2009 |
20090311108 | Method for Operation of a Compressor Unit, and Associated Compressor Unit - The invention relates to a method for operating a compressor unit, in particular for underwater operation. The aim of the invention is to minimize the risk of gas hydrate formation during the compression process. To reduce said risk, according to the method components of the compressor unit are supplied with anti-freeze and/or anti-freeze is injected into the flow path of the conveyed medium to be compressed. The invention also discloses a compressor unit, which operates according to said method. | 12-17-2009 |
20090311109 | Variable Displacement Compressor With A Discharge Pressure Compensated Suction Shutoff Valve - A variable displacement compressor with a discharge pressure compensated suction shutoff valve (SSV). The SSV prevents noise generated at low refrigerant flow rates by a suction valve from propagating out of the compressor and to an air conditioner evaporator by variably restricting a fluid communication with the suction valve. The SSV is configured so the variable restriction is increased correspondingly with the discharge pressure if the discharge pressure is less than a threshold that is an indicator of low refrigerant flow rates, and the restriction is decreased if the discharge pressure is greater than the threshold. | 12-17-2009 |
20090317263 | Oil Pump Used in a Linear Compressor - The present invention discloses an oil supply apparatus of a linear compressor. In the linear compressor including a main body frame, a cylinder installed on the main body frame, and a piston installed inside the cylinder, for performing linear reciprocation, the oil supply apparatus circulates the oil between the cylinder and the piston. The oil supply apparatus of the linear compressor includes an oil supply passage for supplying the oil to a gap between the cylinder and the piston, and an oil pumping means consisting of an oil cylinder fixed to the main body frame to communicate with the oil supply passage, a mass member installed in the oil cylinder and linearly reciprocated by vibration of the main body frame, for pumping the oil, and oil elastic members installed in the oil cylinder, for elastically supporting the mass member at both sides of the mass member. A mass of the mass member and elastic moduli of the oil elastic members are set so that a natural frequency by the mass of the mass member and the elastic moduli of the oil elastic members can be smaller than an operating frequency of the main body frame. | 12-24-2009 |
20090317264 | ESP MOTOR WINDINGS FOR HIGH TEMPERATURE ENVIRONMENTS - An electric submersible pump device, comprising: an electric motor having motor windings; a pump coupled with the motor; and high temperature polymeric insulation surrounding at least a portion of the motor windings, the high temperature polymeric insulation comprising HN polyimide film and a high temperature fluoropolymer adhesive coating at least one side of the HN polyimide film. | 12-24-2009 |
20090317265 | METHOD AND APPARATUS FOR PROTECTION OF COMPRESSOR MODULES AGAINST INFLUX OF CONTAMINATED GAS - A method for protection of compressor modules against undesirable influx of contaminated gas, comprising a pressure housing ( | 12-24-2009 |
20090317266 | DIGITAL HYDRAULIC PUMP/MOTOR TORQUE MODULATION SYSTEM AND APPARATUS - The present invention provides a hydraulic pump for use in driving a load with a control modulation system which modulates a primary control signal in order to accommodate variations in secondary changeable parameters which require control at a higher frequency or have a lower latency. | 12-24-2009 |
20090317267 | HYDRAULIC INTENSIFIERS - A hydraulic intensifier with a piston and cylinder assembly ( | 12-24-2009 |
20090317268 | FINGER-TYPE PERISTALTIC PUMP COMPRISING A RIBBED ANVIL - The present invention discloses a finer-type peristaltic infusion pump comprising a ribbed anvil. More specifically, a finger-type peristaltic pump, comprising a plurality of pressing-fingers, infusion-tube, and a passive interfacing mechanism is disclosed. The passive interfacing mechanism comprises of means for accommodating said flexible infusion tube and mounting the tube in a location suitable for the pressing-fingers to apply an approximated perpendicular force on said tube to squeeze it; a ribbed anvil rigidly supporting the tube on opposite side to the pressing fingers when it is pressed by said finger; said anvil comprising a plurality of ribs selected from one or more ribs of a group including a plurality of ribs oriented to face said fingers' tip, a plurality of ribs located in between said fingers, or any combination thereof. | 12-24-2009 |
20100003143 | MICRO-FLUIDIC SYSTEM - The present invention provides a micro-fluidic system, a method of manufacturing the micro-fluidic system and a method of controlling or manipulating a fluid flow through micro-channels of such a micro-fluidic system. The inner side of the wall of the micro-channel is provided with actuator elements. The actuator elements have composite structures. These actuator elements can change shape and orientation in response to an external stimulus. Through this change of shape and orientation, the flow of a fluid through a micro-channel may be controlled and manipulated. | 01-07-2010 |
20100008794 | Device and Method Employing Shape Memory Alloy - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 01-14-2010 |
20100014990 | Compressor Unit - The invention relates to a compressor unit, in particular for underwater operation, wherein the stator of the motor is connected to a separate cooling means. It is an object of the invention to provide a cooling means for the stator of the electric motor, which cooling means firstly affords excellent operational reliability and secondly does not require any exchange of materials with the surroundings during operation. To this end, there is provision for the cooling means to be configured in such a way that there is a natural circulation of a cooling medium in the cooling means of the stator under operating conditions. One decisive advantage of the compressor unit according to the invention lies in the fact that the separate cooling means of the stator can be adapted precisely to the operating conditions of the latter and, in particular, firstly the high power loss and secondly the sensitivity of this component can be taken into consideration. | 01-21-2010 |
20100021314 | METHOD AND APPARATUS FOR MONITORING THE PERFORMANCE OF A COMPRESSOR - A method of monitoring the operation of a compressor includes sensing a parameter on a housing of the compressor from a device placed on the housing, generating a representative sensor signal in response to the sensed parameter, transmitting from the device a data signal related to the representative sensor signal, and receiving the data signal at a location remote from the housing. Other methods and an apparatus for monitoring the compressor are further disclosed. | 01-28-2010 |
20100021315 | METHOD FOR CONTROLLING THE CAPACITY OF A PERISTALTIC PUMP AND PERISTALTIC PUMP - A method for controlling the flow rate of a peristaltic pump includes compressing a flexible tube, forming at least one occlusion region that moves cyclically downstream from the upstream end of the pump, and compressing the tube in the direction of a counter surface to form an occlusion. A peristaltic pump can be used to carry out the method so as to suppress reverse flow without altering the speed of the motor. The occlusion in the most downstream part of the pump remain in the occluding position for a longer portion of the cycle than occlusion in a more upstream part of the pump, preferably for longer than the compression in the most upstream part of the pump. | 01-28-2010 |
20100034670 | HYDRO COLUMN - A Self Priming Gravity Wave Water Pump, Double Acting, vertically Self Adjusting incorporating a Submerged Column Platform as shown in FIG. | 02-11-2010 |
20100040481 | DEVICE FOR CONTROLLING THE OPENING AND CLOSING OF A CLAMP IN A POSITIVE DISPLACEMENT PUMP - A device for controlling the opening and closing of a clamp intended to seal a flexible tube, for example in a positive displacement pump, includes: a housing that can be closed with a door; a tube placed inside the housing; a clamp also placed in the housing, which cooperates with the tube to open or seal it. The clamp is closed when the door is being opened and when the door is being closed. As well as ensuring that the tube is always closed when the door is being opened, the inventive safety device also ensures that the tube remains closed once the door has been closed as long as a suitable device does not trigger the opening of the clamp. The fully mechanical closure device is not exposed to the dangers of a faulty power supply. | 02-18-2010 |
20100054957 | METHOD FOR DETERMINING A STATEMENT OF A STATE OF A TURBOMOLECULAR PUMP AND A TURBOMOLECULAR PUMP - In a method for determining a statement of a state of a turbomolecular pump, and in a turbomolecular pump, a vibration curve is determined with a vibration sensor ( | 03-04-2010 |
20100054958 | OIL-FREE AIR COMPRESSOR SYSTEM WITH INLET THROTTLE - The present air compressor system includes at least one piston stage connected to the air inlet of the compressor by an inlet valve and connected to the compressed air outlet of the compressor by an outlet valve; a motor driving the piston stage; and an adjustable throttle connected between the air inlet and the inlet valve. A controller controls the motor and the throttle to substantially close the throttle to unload the piston stage when necessary. | 03-04-2010 |
20100054959 | SYSTEMS AND METHODS FOR DRIVING A PUMPJACK - Systems and methods for providing a pump driving unit for driving an above ground pump. The pump driving unit utilizes a single prime mover and a drive train for actuating multiple components required to drive the above ground pump. Some implementations of the pump driving unit include phase separation devices, filtering units, and cooling units that may also be actuated by the drive train of the unit. Some implementations of the pump driving unit further include an enclosure and a platform for containing the unit and simplifying on-site installation. | 03-04-2010 |
20100054960 | PULSATION GENERATING MECHANISM, CONNECTING FLOW CHANNEL TUBE, AND FLUID EJECTING APPARATUS - A fluid ejecting apparatus having a fluid chamber, an inlet flow channel, and a nozzle configured to eject fluid supplied from the inlet flow channel to the fluid chamber from the nozzle in a pulsed manner by changing the volume of the fluid chamber includes: a diaphragm; a wall surface provided so as to oppose the diaphragm; a spacer being provided between the diaphragm and the wall surface and having a cylindrical through hole; a piezoelectric element configured to displace the diaphragm; and a connecting flow channel tube communicated with the fluid chamber, wherein the nozzle is provided at an end of the connecting flow channel tube opposite to the fluid chamber, the fluid chamber is defined by the diaphragm, the wall surface, and an inner surface of the through hole of the spacer, and the inlet flow channel is defined by a groove provided on the wall surface and the spacer and is communicated with the fluid chamber. | 03-04-2010 |
20100068072 | Device and Method Employing Shape Memory Alloy - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 03-18-2010 |
20100068073 | CONTROLLER FOR A MOTOR AND A METHOD OF CONTROLLING THE MOTOR - A method of controlling a motor operating a pumping apparatus of a fluid-pumping application. The pumping apparatus includes a pump having an inlet to receive a fluid and an outlet to exhaust the fluid, and the motor coupled to the pump to operate the pump. The method includes the acts of controlling the motor to operate the pump and monitoring the operation of the pump. The monitoring act includes monitoring a power of the motor, and determining whether the monitored power indicates an undesired flow of fluid through the pump. The method further includes the act of controlling the motor to cease operation of the pump when the determination indicates an undesired flow of fluid through the pump and zero or more other conditions exist. | 03-18-2010 |
20100074764 | Compressed Air Supply System for a Commercial Vehicle and Method for Operating Said Compressed Air Supply System - A compressed air supply system for a utility vehicle includes a compressed air inlet that can be coupled to a compressor, a filter unit that can be coupled to the compressed air inlet via a supply line, a discharge valve element that is coupled to a discharge outlet and the supply line, an energy-saving control outlet that can be coupled to a control inlet of the compressor, a supply line locking valve element interposed between the compressor and the filter unit and a first valve element and a second valve element, the discharge valve element, the energy saving control outlet, the regeneration of the filter unit and the supply line locking valve element being controllable by the valve elements. The energy saving control outlet can be controlled by the first valve element and the discharge valve element and the regeneration of the filter unit can be controlled by the second valve element. The supply line locking valve element is closed during the regeneration phase of the filter unit and can be transferred into an opened switching state when not in the regeneration state and when the discharge valve element is closed and the energy saving control outlet is aerated. | 03-25-2010 |
20100086415 | Reciprocating compressor - In a reciprocating compressor with delivery rate control the actuation device ( | 04-08-2010 |
20100092309 | DRINKING STRAW PUMP APPARATUS AND METHOD FOR USING - The invention relates to a disposable drinking straw pump apparatus and method for using the apparatus. The apparatus contains a manual pump device and two unidirectional valves, which enable the user to direct the flow of liquid through the apparatus and into the user's mouth by compressing and releasing the pump device. In addition to its functional value for those with orofacial disabilities, the drinking straw pump apparatus has entertainment value for those who prefer to manually pump liquid into their mouths, and also as a training tool in developing the muscles and dexterity involved with the suction creation process. | 04-15-2010 |
20100111711 | Downhole Electrical Submersible Pump Seal - An improved seal assembly for a downhole electrical submersible pump assembly. | 05-06-2010 |
20100111712 | HYDRAULIC PUMP CONTROL ARM AND METHOD - Adjustable control arms for dual path hydrostatic pumps have first and second arms interconnected by an eccentric mechanism with a common pivot point on a pivotal control input shaft for the pumps. The control arms are adjusted at a minimal pump output such as 500 r.p.m. by varying the eccentric to achieve equal r.p.m. The throw of the pump arms is adjusted at a maximum pump output r.p.m., such as approximately 4000 r.p.m., to achieve uniform tracking, steering, and directional control from the dual path hydrostatic pumps. | 05-06-2010 |
20100111713 | APPARATUSES, SYSTEMS, AND METHODS FOR IMPROVED PERFORMANCE OF A PRESSURIZED SYSTEM - A system, apparatus, and method for improving performance of a pressurized system. | 05-06-2010 |
20100119380 | SUBSEA PUMPING SYSTEM - A technique is provided for pumping fluid in subsea applications. A self-contained pumping module is created by mounting a pumping unit on a skid that can be lowered to a sea floor. The skid comprises a support structure designed to hold the pumping unit in a desired orientation, such as an inclined orientation with respect to a base of the skid. The self-contained nature of the pumping module facilitates deployment to a sea floor/retrieval from the sea floor to enable use of the pumping module in a variety of subsea applications with reduced complexity and cost. | 05-13-2010 |
20100119381 | SUBSEA PUMPING SYSTEM - A technique is provided for pumping fluid in subsea applications, such as booster pumping applications. A self-contained pumping module has a pump and a motor mounted on a skid. The self-contained pumping module also includes electrical connections by which electrical power can be provided to the motor and hydraulic connections for connecting suitable hydraulic lines with a pump intake and a pump discharge. The self-contained nature of the pumping module enables easy deployment to a sea floor in a variety of applications. | 05-13-2010 |
20100119382 | SUBSEA PUMPING SYSTEM WITH INTERCHANGABLE PUMPING UNITS - A technique is provided for pumping fluid in subsea applications. A self-contained pumping module is created by mounting one or more removable pumping units on a skid that can be lowered to a sea floor. Each removable pumping unit comprises an electric submersible pumping system enclosed by an outer housing. The self-contained pumping module also comprises hydraulic connectors and electrical connectors that facilitate connection with corresponding hydraulic lines and electric lines while at a subsea location. | 05-13-2010 |
20100143160 | SUBMERSIBLE PUMP MOTOR COOLING THROUGH EXTERNAL OIL CIRCULATION - An electrical submersible pump motor has motor oil flowing through external circulation tubes for cooling the motor. A substantial portion of the exterior of each tube is submerged in and exposed to wellbore fluid. Heat is transferred from the motor to the motor oil, and then circulated through the external circulation tubes to conduct heat to the wellbore fluid. Internal or external motor oil pumps may be used to propel the motor oil through the circulation tubes. Guards or baffles may be used to protect the circulation tubes and to influence the flow of production fluid over he circulation tubes. | 06-10-2010 |
20100143161 | Quad Chamber Mixing Pump - A pair of dual chamber mixing pumps are combined which allow for a constant dispense rate profile using motor speed modulation. Each pump is divided into two chambers, the proximal chamber and the distal chamber. The chambers are defined in part by a piston having proximal and distal ends and recessed sections. The pump utilizes one common driving mechanism to axially rotate and laterally reciprocate the piston to provide continuous pumping of fluids with reduced pulsations. Each fluid enters through its own pump inlet and outlet. The pumps are operated 90° out of phase with respect to each other. | 06-10-2010 |
20100150739 | HEAT TRANSFER THROUGH THE ELECTRICAL SUBMERSIBLE PUMP - The motor of an electrical submersible pump generates a significant amount of heat that can be removed by transferring it to the well production fluid. The motor housing may have turbulators that increase the turbulence of the production fluid to increase the rate of heat transfer. The turbulators are designed for manufacturability and maintenance. | 06-17-2010 |
20100150740 | SEALING SYSTEM DEVICE - The present invention relates to a dynamic sealing system device for a submerged pump comprising at least one feed line running in towards the dynamic sealing system, with a first valve device arranged in the feed line and a second valve device arranged such that in an open position it opens a first bypass line that runs from a point on the feed line between the first valve device and the pump and a low-pressure source at the pump to reduce the pressure in a barrier fluid in the sealing system. The invention also comprises a method for reducing the barrier fluid pressure for a submerged pump. | 06-17-2010 |
20100150741 | HYDRAULIC UNIT HAVING ORIFICE PLATE DISPLACEMENT CONTROL - A hydraulic unit is disclosed. The hydraulic unit may have a rotatable body at least partially defining a plurality of barrels, a plurality of plungers associated with the plurality of barrels, and a swashplate tiltable to vary a displacement of the plurality of plungers relative to the plurality of barrels. The hydraulic unit may also have an orifice plate located adjacent the rotatable body. The orifice plate may include an inlet port, a discharge port, and a first plurality of control orifices located between first ends of the inlet and discharge ports. The hydraulic unit may further have a first plurality of control valves, each of the first plurality of control valves being associated with a different control orifice of the first plurality of control orifices. | 06-17-2010 |
20100158704 | COMPLIANT-SEAL CHECK VALVE - A check valve includes a valve seat and a compliant member that moves to seal the check valve by contacting the valve seat. A method for priming a chromatography solvent pump includes providing the check valve in fluid communication with an outlet of the pump, drawing fluid into the pump from a fluid source, and expelling the fluid from the pump through the valve, thus wetting the check valve. Another method for priming a chromatography solvent pump includes providing the check valve in fluid communication with an inlet of the pump, drawing fluid through the valve into the pump, and expelling the fluid from the pump. | 06-24-2010 |
20100158705 | DEVICE AND METHOD FOR COLLECTING THE KINETIC ENERGY OF A NATURALLY MOVING FLUID - The invention relates to a device ( | 06-24-2010 |
20100172766 | VARIABLE DISPLACEMENT PISTON MACHINE WITH A SENSOR - The invention provides a variable displacement axial piston machine comprising a cylinder block with at least one main cylinder and main piston, a swash plate, a plunger arrangement with a plunger and auxiliary cylinder, and a sensor. The swash plate is arranged to effect movement of the main piston in the main cylinder upon rotation of the swash plate relative to the cylinder arrangement, the plunger being arranged to tilt the swash plate relative to the cylinder arrangement and thereby to control a stroke of the main cylinder In the main piston. To provide a simple and reliable measurement of displacement of the main piston in the main cylinder, the invention provides a sensor element which is fixed in the auxiliary cylinder and which is adapted to sense movement of the plunger therein. | 07-08-2010 |
20100178176 | Retractable Pump System - A system and method for utilizing a retractable pumping system installed on an aerial fire fighting helicopter adapted for drawing from a body of water to fill an onboard holding tank. The system comprising: a pump; a collapsible conduit; a housing for holding the collapsible conduit in a retracted position; a conduit for directing fluid into the reservoir and means for securing the housing to a helicopter; where the conduit can be extended up to 15 feet. | 07-15-2010 |
20100183448 | METHODS OF USE FOR A POSITIVE DISPLACEMENT PUMP HAVING AN EXTERNALLY ASSISTED VALVE - A method for operating at least one pump in a pump assembly comprises providing a pump assembly comprising a fluid end and a power end, the fluid end in communication with a fluid source and at least one downstream destination and comprising a pump housing for a pressurizable chamber, at least one valve for controlling fluid communication with the chamber, the at least one valve defining a normal duration of allowing fluid communication with the chamber during operation of the pump assembly, providing a valve actuation guide external to the chamber, the valve actuation guide coupled to the valve and operable to assist in controlling fluid communication with the chamber, operating the pump assembly, and actuating the valve actuation guide to change an aspect of the valve duration. | 07-22-2010 |
20100189573 | ROTARY PRESSURE PRODUCTION TURBINE - A rotary pressure production turbine for pressurizing a hydraulic fluid is disclosed comprising a plurality of piston assemblies. Each piston assembly comprises a hollow needle piston shaft having through which hydraulic fluid is moved from a low pressure volume to a high pressure volume as the piston shaft moves in a first direction. A rotary actuator actuates each piston shaft. From the high pressure volume, hydraulic fluid is moved to a common high pressure header and delivered to an aspirated accumulator where the fluid can be stored and subsequently utilized. In some embodiments, the fluid is utilized to operate an electric generator for use in a hybrid-electric vehicle. In some embodiments, the rotary actuator is driven by an internal combustion engine, while in others the rotary actuator is driven by a vehicle drive train in a regenerative braking application. | 07-29-2010 |
20100189574 | HIGH PRESSURE PUMP CONTROL - A feedback control loop for a high pressure pump modifies the accumulator velocity and pressure during solvent transfer. The accumulator velocity is adjusted to maintain the system pressure equal to the expected pressure to thereby eliminate the effect of the flow deficit created by a thermal effect. | 07-29-2010 |
20100202895 | MULTI-CHAMBERED PUMP - A multi-chambered pumping system is provided comprising an input cylinder configured to pump a source substance into a vessel and an effluent cylinder configured to receive an effluent from the vessel. The cylinders regulate the pressure of the source substance input into the vessel and recover the pressure of an effluent output from the vessel to pump additional quantities of source substance into the vessel. In each cylinder, a piston creates a boundary between two sections: a fluid section configured to receive working fluid and an effluent or input process section to receive the same. The fluid sections of the cylinders are in fluid communication. A guide rod is attached to each piston and may be operably sized to compensate for a pressure difference between a pressure at which the source substance is pumped into a vessel and the pressure at which an effluent is output from the vessel. | 08-12-2010 |
20100202896 | PUMP MOTOR PROTECTOR WITH REDUNDANT SHAFT SEAL - An electric submersible pump device having a motor part, a pump part, and a protector part. The protector part includes redundant shaft seal parts. | 08-12-2010 |
20100202897 | HIGH PRESSURE PUMP CONTROL - A feedback control loop for a high pressure pump modifies the accumulator velocity and pressure during solvent transfer. The accumulator velocity is adjusted to maintain the system pressure equal to the expected pressure to thereby eliminate the effect of the flow deficit created by a thermal effect. | 08-12-2010 |
20100215512 | METHOD FOR OPERATING A COMPRESSOR ARRANGEMENT, AND A COMPRESSOR ARRANGEMENT - A method is provided for operating a compressor arrangement, particularly a pipeline compressor station, wherein the compressor arrangement has a turbine and a compressor in a torque-transferring connection. Previous systems work over long periods with poor efficiency when the turbine is working under a partial load. A solution is provided which includes an electrodynamic machine having a torque-transferring connection to the compressor, wherein the turbine has a maximum efficiency at a specific output, and when the compressor output is below the specific output, the electrodynamic machine is operated as a generator, and when the compressor output is above the specific output, the electrodynamic machine is operated as a motor. | 08-26-2010 |
20100215513 | VACUUM PUMPING SYSTEM, DRIVING METHOD THEREOF, APPARATUS HAVING THE SAME, AND METHOD OF TRANSFERRING SUBSTRATE USING THE SAME - An apparatus includes a transfer unit under an atmospheric condition and having a robot therein; and at least one process chamber connected to one side of the transfer unit with a slot valve there between, and being alternately under a vacuum condition and under an atmospheric condition. | 08-26-2010 |
20100226793 | METHOD FOR DETERMINING THE FLOW RATE OR THE ACTUATION FREQUENCY OF A FLUID PUMP, PARTICULARLY IN AN ELECTRONIC MOTOR VEHICLE BRAKE SYSTEM - A method, and use of the method in motor vehicle brake control systems, for determining the delivery capacity or the frequency of activation of a fluid pump, in particular a hydraulic pump, in an electronic pressure control unit, wherein the latter comprises not only a pressure circuit controller which is activated by analogized valve actuation but also a pump power setting means for setting the delivery capacity of the hydraulic pump, in which the frequency of movement of the mechanical pumping unit is determined by pressure fluctuations of the delivery fluid, wherein the fluctuations are acquired by reference to changes in the magnetic flux in the region of the actuation magnetic field of an electromagnetically actuated fluid valve. | 09-09-2010 |
20100232983 | Inverter Compressor Operating Method and Compressor Driving Device - A boot capacitor that functions as an operating power supply for a high-arm-side transistor provided in an inverter has to be charged prior to normal operation of a motor. This operation of charging the boot capacitor is performed at a carrier frequency that is lower than a carrier frequency for the normal operation. | 09-16-2010 |
20100232984 | Compressor Unit and Use of a Cooling Medium - A compressor unit comprises a centrifugal compressor for compressing a gas, having a rotor with one or more compressor impellers, and an electric motor having a stator and a rotor, for driving the rotor of the compressor. The compressor and the electric motor are accommodated in a common gas-tight housing which is provided with a gas inlet and a gas outlet. The rotor of the compressor and the rotor of the electric motor are arranged on a common rotor shaft which is mounted in magnetic bearings. The rotor shaft comprises a single unit and is mounted in two radial magnetic bearings, each in the vicinity of one end of the common rotor shaft, and one axial magnetic bearing, which is arranged in the vicinity of one of the radial bearings. | 09-16-2010 |
20100232985 | FUEL GAS CONDITIONING WITH MEMBRANE SEPARATION - Compressed natural gas is produced by a compressor, located near a natural gas well. The compressor being driven by a gas engine. A portion of the compressed natural gas is diverted, and passed through a dehydration membrane, and also through a gas-separation membrane which selects for carbon dioxide. The result is a natural gas stream which is relatively dry, and relatively free of carbon dioxide. This stream is used as fuel for the gas engine which drives the compressor. The permeate gases from the membrane may be recycled. The system enables the natural gas to be compressed efficiently, by providing a conditioned fuel gas for driving the compressor. | 09-16-2010 |
20100239434 | APPARATUSES AND METHODS FOR FLUID EVACUATION - The present invention is directed to devices and methods for evacuating fluids from a flexible conduit, particularly to evacuating water from a fire hose. In one aspect, a fluid evacuating apparatus is utilized to evacuate a fluid, such as water, from a flexible conduit, such as, for example, a fire hose. The apparatus may further be utilized to collapse the flexible conduit for storage and/or transport. In exemplary embodiments, a fluid evacuating apparatus may be utilized to evacuate the water from hoses of a wide range of diameters that collapse into a compact form for storage. The apparatus may include a frame with a handle, a mobility mechanism, such as, for example, wheels or rollers, a roller which may evacuate water, and a restraining mechanism which may hold down the hose, such as a roller or rollers. | 09-23-2010 |
20100247334 | PISTON SYSTEMS HAVING A FLOW PATH BETWEEN PISTON CHAMBERS, PUMPS INCLUDING A FLOW PATH BETWEEN PISTON CHAMBERS, AND METHODS OF DRIVING PUMPS - Piston systems comprise a housing including a first piston chamber and a second piston chamber therein. A first piston is movably disposed within the first piston chamber and a second piston is movably disposed within the second piston chamber. A flow path extends between and couples the first piston chamber and the second piston chamber. Reciprocating pumps comprising a flow path between a plurality of piston chambers and methods of driving reciprocating pumps are also disclosed. | 09-30-2010 |
20100247335 | System for Monitoring an Electrical Submersible Pump - A system for monitoring an Electrical Submersible Pump is disclosed comprising a rotation rate sensor located in an ESP gauge ( | 09-30-2010 |
20100254828 | Variable Displacement Transmission Pump Control - A system for controlling fluid flow rates in a transmission includes a pump having variable displacement and providing a pressurized fluid source, a regulating valve communicating with the fluid source and a pressure sensor, the pressure sensor producing a variable control signal whose magnitude represents a degree to which fluid flow requirements of the transmission are being provided by the fluid source, and an actuating valve producing a pressure that changes the pump displacement in response to the magnitude of the control pressure. | 10-07-2010 |
20100260616 | METHOD OF CONTROLLING COUNTER-ROTATING AXIAL-FLOW FAN - A counter-rotating axial-flow fan may be controlled to improve both cooling efficiency and operating efficiency. A first motor and a second motor are started in a given starting mode. Then, if the temperature of an object to be cooled is higher than a given reference temperature, the rotational speed of the first motor and the rotational speed of the second motor are controlled in a predetermined cooling efficiency mode that gives priority to cooling the object to be cooled over the operating efficiency of the counter-rotating axial-flow fan. If the temperature of the object to be cooled is equal to or lower than the given reference temperature, the rotational speeds of the first and second motors are controlled in a predetermined operating efficiency mode that maintains the object to be cooled at a temperature equal to or lower than the given reference temperature and reduces the power consumption of the counter-rotating axial-flow fan. | 10-14-2010 |
20100260617 | VALVE BASED OR VISCOSITY BASED CONTROL OF A FLUID PUMP - A pump control for controlling a fluid pump for pumping a fluid, the pump control comprising a pump oil path comprising an oil pump and at least one valve, the oil pump being adapted for pumping pump oil to the fluid pump, the at least one valve being arranged downstream of the oil pump, and a control unit adapted for controlling a pump oil pressure in the fluid pump by switching the at least one valve so that the fluid can be pumped in response to the pump oil pressure. | 10-14-2010 |
20100266422 | Positive Displacement Pump System and Method with Rotating Valve - Systems and methods including a valve piston in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. The valve piston may be configured to rotate between a first position within the pumping chamber and a second position outside of the pumping chamber. | 10-21-2010 |
20100266423 | System and Method for Pump with Deformable Bearing Surface - Systems and methods for pumping fluid comprising a pumping chamber, a pump inlet, a pump outlet, a valving mechanism, and a drive piston or pumping chamber wall including a deformable surface configured to provide elastohydrodynamic lubrication during operation. | 10-21-2010 |
20100272580 | SLIDE VALVE WITH HOT GAS BYPASS PORT - A compressor includes a slide valve ( | 10-28-2010 |
20100272581 | Fluid operated pump - Disclosed is a pumping system comprising a pump having a rigid outer casing defining an interior space and a tube structure in the interior space, the tube structure being flexible and substantially inelastic. The interior of the tube structure defines a pumping chamber for receiving pumped fluid. The tube structure is movable between laterally expanded and collapsed conditions thereby providing discharge and intake strokes. The pumping chamber receives pumped fluid to cause the tube structure to move towards the expanded condition and undergo an intake stroke. The pumping chamber—undergoes a discharge stroke upon collapsing of the tube structure. The pumping system also comprises a delivery means and a supplying means for delivering pumped fluid to the pumping chamber and for supplying actuating fluid to an actuating region around the tube structure in timed sequence to cause the tube structure to undergo discharge and intake strokes. | 10-28-2010 |
20100272582 | HEATING PUMP FOR LIQUIDS - Liquid pump comprising:
| 10-28-2010 |
20100278660 | Integral Compressor Motor And Refrigerant/Oil Heater Apparatus And Method - A compressor apparatus includes a power source ( | 11-04-2010 |
20100284826 | MINI-SURGE CYCLING METHOD FOR PUMPING FLUID FROM A BOREHOLE - A method for removing a fluid and a material in contact with the fluid from a borehole penetrating the earth, the method including: operating a pump coupled to the borehole at a first speed for a first time interval to remove the fluid; and operating the pump at a second speed greater than the first speed for a second time interval to remove the fluid and the material. | 11-11-2010 |
20100284827 | HOMOGENIZATION OF THE CONVEYING FLOW IN OSCILLATING POSITIVE DISPLACEMENT PUMPS - A method for homogenizing conveying flow from at least two oscillating positive displacement pumps utilizing a drive motor for each pump and a rotating shaft, the fluid conveying flow in a conveying line is generated by the oscillating positive displacement pumps, the drive motors controlled such that the conveying flow generated overall in the conveying line is largely uniform or constant. | 11-11-2010 |
20100296947 | APPARATUS AND METHOD FOR PROVIDING DAMPER LIQUID IN A GAS TURBINE - A fluid distribution system for use in a gas turbine engine includes a fan shaft, a damper, a bearing, and a pump. The damper supports the bearing, and the bearing supports the fan shaft. The pump is connected to and driven by the fan shaft. The pump is also fluidically connected to the damper. | 11-25-2010 |
20100296948 | METHOD OF OPERATING A FLUID WORKING MACHINE - To improve the fluid output flow characteristics ( | 11-25-2010 |
20100303638 | METHOD OF OPERATING A FLUID WORKING MACHINE - When the fluid flow output of a synthetically commutated hydraulic pump is adapted to a given fluid flow demand, pulsations in the fluid output flow of the synthetically commutated hydraulic pump can occur. To avoid such pressure pulsations, it is suggested, to use a set of pre-calculated actuation patterns for actuating the electrically commutated valves of the synthetically commutated hydraulic pump. | 12-02-2010 |
20100303639 | Method for Operating a Compressor Device and Associated Compressor Device - A method for operating a compressor device and associated compressor device including a compressor chamber and a cooling chamber adjoining the compressor chamber is provided. The pressure of a cooling medium in the cooling chamber is held above the pressure of a compressor medium in the compressor chamber during operation of the compressor device. | 12-02-2010 |
20100310384 | System and Method for Servicing a Wellbore - A method of servicing a wellbore, comprising establishing a pumping profile having a performance plan, operating a first pump according to a first pumping parameter value, and operating a second pump according to the second pumping parameter value, wherein the second pumping parameter value is selected relative to the first pumping parameter value to improve a conformance of a phase sensitive combined pump effect operational characteristic to the performance plan. A wellbore servicing system, comprising a pump group comprising a plurality of plungers wherein at least some of the plurality of plungers are substantially configured according to an equal phase angle distribution arrangement. | 12-09-2010 |
20100310385 | Artificial Lift Mechanisms - The invention relates to electric linear motors and gas springs in reciprocating pumps for oil wells. By the use of this invention a simple, silent, compact and adaptable mechanism can be constructed to drive a wide range of such pumps. The mechanism will sense a variety of pumping conditions and react automatically thereto. | 12-09-2010 |
20100316504 | Positive Displacement Pumping System - A positive displacement pumping system for use in deep wells includes a drive system and one or two pumps. In the preferred embodiment, the drive system includes an electrical motor, a speed reducer, and a rotary-to-reciprocal motion converter. Alternatively, the drive system includes a windmill, a variable transmission, and a counterbalance. The counterbalance can be either weights or a second alternating pump. The pumps include a central hollow discharge tube and one or more vertically aligned pumping chambers in fluid communication with the central discharge tube. Within each pumping chamber, a valve arrangement, which includes a piston or shuttle member and fluid intakes, causes fluid to fill and then drain from the pumping chambers as the central hollow discharge tube reciprocates. In operation, the drive system causes the central hollow discharge tube in the pump to reciprocate and thereby cause the fluid to travel from each pumping chamber into to the central discharge tube. In the preferred embodiment, fluid is pumped on both the upstroke and downstroke of the central discharge tube. Alternatively, fluid is discharged on only the upstroke. Fluid from the central discharge tube is discharged from the pump into a discharge field. The amount of fluid discharged on each stroke depends on the number and size of pumping chambers and the length of the stroke. A greater number of pumping chambers causes a greater discharge of fluid at a higher velocity into the discharge field. | 12-16-2010 |
20100316505 | Compressor Freeze Up Prevention in Cold Weather - The present embodiments provide a control system and method that is able to automatically cycle one or more compressor valves, for example to prevent freeze up. For example, in one embodiment, a system includes a compressor having a compression device configured to increase a pressure of a gas, a valve configured to control flow of the gas from the compression device, and a controller configured to cycle the valve to reduce buildup of contaminants in the compressor. | 12-16-2010 |
20100322784 | SOLAR WATER HEATING SYSTEM - A variety of arrangements and methods relating to a solar water heating system are described. Various implementations involve a relatively lightweight, affordable, low-pressure solar water heating system that is easier to ship and assemble and that is resistant to overheating and freezing damage. In one aspect of the invention, a solar water heating system includes a solar collector panel, a piping system and an improved, self-regulating expansion reservoir. Some designs involve automatic filtration, push fittings, a method for regulating power from a photovoltaic panel, UV resistant polymer components and/or other features. In a particular embodiment of the invention, multiple pumps, a heat exchanger and a controller for a solar water heating system are integrated into a single, compact module. | 12-23-2010 |
20100322785 | Compressor Unit - A compressor unit including a compressor is provided. The compressor unit includes a suction line and a discharge line, a control unit which controls the compressor and/or adjacent modules. A method to operate a compressor unit is also provided. To avoid any damage caused by non-gaseous fluid amount at least one detection device is disposed in the suction line to identify non-gaseous fluid amounts in the fluid to be compressed before entering the compressor. The detection device is connected to the control unit in a signal transmitting manner. | 12-23-2010 |
20100329890 | REACTOR COOLANT PUMP MOTOR LOAD-BEARING ASSEMBLY CONFIGURATION - A method of upgrading a 1,500 rpm reactor coolant pump motor having a vertically oriented rotor shaft supported by a lower guide bearing disposed in an oil reservoir. The method includes removing a lower guide bearing support to enhance circulation of the oil to facilitate cooling of the oil and operating the reactor coolant pump motor at 1,500 rpm without the lower guide bearing support or the oil baffle or flinger ring attached to the lower guide bearing support. The method further includes thickening a keeper to support the guide bearing. | 12-30-2010 |
20100329891 | COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE - A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control. | 12-30-2010 |
20100329892 | Hydraulic drive and control system for pumps - A pumping system is provided which is a mobile, vehicle-mounted pumping system, such as for water or fuels, which mounts on a vehicle and may be used for various applications. The pumping system operates a drive system and control system for liquid pumps almost exclusively by hydraulic fluid pressure. | 12-30-2010 |
20100329893 | External Oil Expansion Chamber for Seabed Boosting ESP Equipment - An expansion chamber to serve ESP equipment installed on the seabed located in either a caisson or a conduit on a skid. The expansion chamber provides an external reservoir for expansion and contraction of motor oil in the ESP equipment. During operation of an ESP, the heat generated in the motor raises the temperature of the motor oil, causing it to expand. The expansion chamber is connected to the ESP equipment via oil lines that allow oil to expand into the expansion chamber when the temperature of the motor oil increases. The expansion chamber has a movable barrier therein that defines primary and secondary chamber. Oil communicates with the primary chamber. Formation fluid within the conduit surrounding the motor communicates with the secondary chamber. | 12-30-2010 |
20100329894 | SYSTEM AND METHOD FOR CONTROL OF DEVICES INTERNAL TO A HERMETIC COMPRESSOR - A system is provided for transmitting control signals to the internal devices of a compressor. The compressor includes a housing, a hermetic power terminal and a motor for powering the compressor. The system includes a frequency converter that is located external to the compressor housing and a frequency decoder that is positioned inside the compressor housing. The frequency converter can convert a control signal from a controller to a high frequency signal. The frequency decoder decodes and converts the high frequency signal to a control signal for an internal device of the compressor. An AC input power source provides electrical power to the motor, and power transmission lines connect the AC input power source to the hermetic power terminal. The frequency converter is electrically coupled to the frequency decoder by two power transmission lines. | 12-30-2010 |
20110002794 | Centrifugal pump and method for compensating the axial thrust in a centrifugal pump - A centrifugal pump is proposed having a pump housing ( | 01-06-2011 |
20110008178 | WAVE ENERGY CONVERTER - A wave energy converter for compressing air from the movement of waves of a body of water is provided. The wave energy converter includes a middle cylinder upon which an upper cylinder slides thereon and in which a lower cylinder slides therewithin. An upper and lower compression chamber disposed within the upper and lower cylinders allows air to be drawn therewithin and compressed when the upper and lower cylinders are moved relative to the middle cylinder as waves progress through their wavelength from crest to trough and vice versa. | 01-13-2011 |
20110008179 | PRESSURE CONTROL - A method and apparatus is disclosed for determining pressure provided by a pump of a topical negative pressure (TNP) system. The method includes the steps of determining a value associated with a measured pressure, determining a difference between the measured pressure value and a predetermined desired value and increasing or decreasing a speed of pumping of the pump responsive the to difference. | 01-13-2011 |
20110008180 | DOWNHOLE PUMPS WITH SAND SNARE - A downhole pump has a barrel and a plunger which reciprocate with respect to each other. The plunger has a first portion with a first seal, a second portion and a third portion with a second seal. The second portion is intermediate the first and second portions. A balancing chamber is formed between the plunger second portion and the barrel. The balancing chamber communicates with the plunger interior by way of an opening. A sand snare chamber is provided with respect to the opening so as to prevent sand from contacting the seals in the balancing chamber. | 01-13-2011 |
20110008181 | FIXED AND VARIABLE COMPRESSOR SYSTEM CAPACITY CONTROL - A controller for a system having at least one variable-capacity, pulse-width modulated compressor and at least one fixed-capacity compressor is provided. The controller may include processing circuitry that modulates the at least one variable-capacity, pulse-width modulated compressor to any capacity substantially between ten percent capacity and one hundred percent capacity. The processing circuitry may determine a desired capacity of the at least one variable capacity, pulse-width modulated compressor based on a load sensor signal and a current run percentage of the at least one variable capacity, pulse-width modulated compressor and may toggle the at least one fixed-capacity compressor between a run mode and a shutdown mode based on the desired capacity of the at least one variable-capacity, pulse-width modulated compressor. | 01-13-2011 |
20110020142 | Method of pumping gas - A vacuum pumping arrangement is described for pumping a gas stream containing hydrogen or other hydrogen-containing gas. The arrangement comprises a pumping mechanism for receiving the gas stream and exhausting a pumped gas stream at a sub-atmospheric pressure, and, downstream from the pumping mechanism, an ionic conducting membrane having one side exposed to the pumped gas stream and another side exposed to oxygen or other source of oxygen. In one example, the membrane is permeable to hydrogen, which permeates across the membrane to react with oxygen adsorbed on the other surface of the membrane. In another example, the membrane is permeable to oxygen anions, which permeate across the membrane to react with hydrogen within the gas stream. | 01-27-2011 |
20110020143 | METHOD OF CONTROLLING GASEOUS FLUID PUMP - A method of controlling a fluid pump. The pump has a plurality of oscillating pistons that travel along a central axis of a piston sleeve. A plurality of pistons is of similar mass within a piston sleeve are provided, and adjacent pistons are positioned to be 180 degrees apart in phase oscillations. An electric coil is provided for each piston, and the position of adjacent pistons is determined. The current to one of the electric coils for a piston is adjusted to maintain the 180 degree difference in phase between oscillations of adjacent pistons. | 01-27-2011 |
20110020144 | VARIABLE-VOLUME HEAD - Disclosed is a device that includes a natural-gas compression system having a natural-gas powered combustion engine, a compression cylinder configured to receive natural gas and output compressed natural gas, a piston disposed in the compression cylinder and configured to translate through the compression cylinder in response to mechanical power received from the natural-gas powered combustion engine, and a variable-volume head mounted to the compression cylinder and configured to vary a compressed volume of the compression cylinder. In some instances, the variable-volume head includes a head body, an adjustment screw rotatably coupled to the head body, a plug moveable in threaded engagement with the adjustment screw, and an anti-rotation device coupled to the plug, the head body, or both. The anti-rotation device may be configured to impede the plug from rotating relative to the head body as the adjustment screw rotates. | 01-27-2011 |
20110027105 | OIL PUMP FOR AN AUTOMATIC TRANSMISSION AND CONTROL METHOD THERETO - A transmission oil pump for an automatic transmission of a motor vehicle. The speed of the oil pump can be shifted by a transmission ( | 02-03-2011 |
20110033316 | SYSTEM FOR CONTROLLING THE STROKE OF AN AIR-OPERATED DOUBLE DIAPHRAGM PUMP - A system for controlling the stroke of an air-operated double diaphragm pump includes a first control valve and a second control valve disposed in parallel within a drive air outlet conduit. The first flow control valve has a first air flow capacity and the second flow control valve has a second air flow capacity which is less than about 50% of the first air flow capacity. | 02-10-2011 |
20110033317 | VACUUM PUMP - A pump rotor ( | 02-10-2011 |
20110038737 | MULTI-STAGE COMPRESSOR - A system and a method for adding and subtracting stages of compression to a compressor as and when the compressor requires them. If the compressor needs only a low pressure ratio, then the system and method allow the compressor to operate with only a primary pumping circuit spinning, while available additional stages, forming a secondary pumping circuit, and which may be required at other times when the needed pressure ratios increase, are decoupled from the rotating shaft, so that the compressor pumps at its most efficient and flexible point. Further, a system and method for adding and subtracting stages of compression to a compressor in order to increase and decrease the pumping capacity as and when required to satisfy a given load requirement. | 02-17-2011 |
20110044824 | INDUCED SYMBIOTIC OSMOSIS [ISO] FOR SALINITY POWER GENERATION - A method and apparatus for renewable power generation utilizes the chemical potential dissimilarity between solutions of differing ionic formulations. A train is formed by a sequentially ordered set of a plurality of cells in which each successive cell is related to the preceding cell. Each cell has pumping means and hydro-power generation turbine means to form a closed hydraulic loop configured for specified volumetric and flow capacity. Adjacent cells share semipermeable membranes. Each cell is charged with a brine of specified ionizable inorganic salt quantity and type with the brine being cycled in a controlled concentration-pressure loop, with each of the cells operating at progressively increasing concentration and osmotic pressure ratio. A continuous and constant flow rate of substantially salt-free permeate flux is maintained across each cell, the flux being osmotically induced from low salt concentration water being fed at the first cell in the train and exiting at the last cell along with the discarded high concentration water brine. The salt-free permeate flux is continuously induced, in symbiotic mode, through the shared membranes, driven by the chemical influence of concentration potential field bounded by water of low to no salt concentration on one end of the train and by brine of high salt concentration on the other end of the train with sufficient concentration difference to provide driving force for said plurality of cells, while maintaining adequate concentration difference between adjacent cells to enhance osmosis function, as well as defining a concentration ratio within each cell to ensure a net positive power generation. | 02-24-2011 |
20110044825 | TUBE PUMP, LIQUID EJECTING APPARATUS, AND METHOD OF DRIVING TUBE PUMP - A tube pump comprising a flexible tube, a pressing member capable of generating a negative pressure in the tube by sequentially pressing the tube from as the pressing member moves from an upstream portion of the tube to a downstream portion of the tube during a pump operating process, a rotating member which includes a cam surface which the pressing member comes in sliding contact with when the pressing member moves between a pump operating position where a negative pressure is generated in the upstream portion of the tube and a pump non-operating position where the negative pressure is not generated, and a rack member including a plurality of teeth, wherein the pressing member is provided with a pinion member capable of continuously engaging with the a flexible portion of the rack member when the pressing member rotatably moves between the pump non-operating position and the pump operating position. | 02-24-2011 |
20110052417 | METHOD OF DRIVING A WELL PUMP - Production liquid from a well is pumped to the surface by a hydraulically driven reciprocating piston pump. The pump is driven in a drive stroke by a flow of hydraulic fluid supplied through a single tubing line applied to a drive side of a drive piston and in a return stroke by the weight of the production liquid heavier than the hydraulic fluid applied to the return side of the drive piston. The production liquid is pumped though the well casing. A control valve causes application of pressure in the hydraulic fluid for the drive stroke and release for the return stroke. The pump body includes a first duct communicating between the tubing and the bottom drive side of the drive piston and a second duct communicating between the well casing and the top drive return of the drive piston. | 03-03-2011 |
20110052418 | SYSTEM AND METHOD FOR A WATER COOLING PUMP - A method and a system are provided for a deep well pump system having a high volume lift of hot or very hot fluids. In an embodiment, a high volume high temperature deep well pumping system uses an external source of cooling fluid to keep one or more vulnerable pumping apparatus components at an acceptable operating temperature. In an embodiment, the cooling fluid, after cooling the component(s), is released into the production fluid flow stream from the pump and both fluids are lifted back up to the surface. In an embodiment, a return tubing, line, or pipe can bring the cooling water back to the surface or other location with or without mixing it with the production fluid. | 03-03-2011 |
20110052419 | Method for Regenerating a Compressed Air Supply Device, Control Unit and Compressed Air Supply Device - To regenerate a compressed air supply device of a commercial vehicle, a first compressed air circuit is supplied with compressed air until reaches a predetermined target pressure value; then a second compressed air circuit is supplied. Between these steps, the method: (1) regenerates an air dryer when the pressure in the first compressed air circuit has reached the target pressure value, and when a moisture value of the air dryer exceeds a predetermined target moisture value; (2) terminates the regeneration when the pressure has dropped to a predetermined limit pressure value or the moisture value of the air dryer has reached or dropped below the target moisture value; (3) supplies the first compressed air circuit until it has reached the predetermined target pressure value; and (4) repeats the preceding intermediate steps when the moisture value is greater than the target moisture value. | 03-03-2011 |
20110052420 | LIQUID-CONDUCTING PUMP WITH DC MOTOR AND POWER SUPPLY WITH CLOSED-LOOP CONTROL - A pump for conveying liquids, in particular water, has a direct-current motor and a power supply unit for rectifying and/or converting an AC voltage or DC voltage which is applied to the power supply unit. The power supply unit has a closed control loop for controlling a controlled variable of the pump. | 03-03-2011 |
20110052421 | METHOD AND DEVICE FOR CONTROLLING THE CONDENSER COOLING WATER OF A STEAM-JET VACUUM PUMP - The invention relates to method and a device for controlling condenser cooling water of a steam-jet vacuum pump in non-barometric installation; wherein an outer measuring pot constructed as communicating container provides the target value for a speed-controlled pump by means of measuring sensors. | 03-03-2011 |
20110052422 | METHOD FOR CONTROLLING THE OPERATION OF A COMPRESSOR - In a method for controlling the operation of a compressor, the compressor is switched off by a controller in order to prevent thermal damage if an estimated temperature value calculated by the controller exceeds an upper threshold value. The controller calculates a cooling function as a state variable utilizing the estimated temperature value, the cooling function representing the chronological course of the cooling of the compressor. The controller determines the cooling function based on at least one first and one second estimated temperature value which are associated with points of the compressor that are at spatial distances to each other. The calculation of the cooling function is based on a temperature difference between the first and second estimated temperature values. | 03-03-2011 |
20110058959 | MUD PUMP CYLINDER ASSEMBLY AND LINER SYSTEM - A fluid section for a reciprocating pump comprises a cylinder assembly including a housing having a central axis, a first end, a second end opposite the first end, and a throughbore extending axially between the first end and the second end. In addition, the cylinder assembly includes a liner disposed within the throughbore of the housing. Further, the cylinder assembly includes an end cap coupled to the second end of the housing. Still further, the cylinder assembly includes an annulus radially positioned between the liner and the housing, the annulus being in fluid communication with the throughbore of the liner. Moreover, the fluid section includes a piston slidingly disposed in the throughbore of the liner. The piston is adapted to compress a fluid disposed in a pumping chamber within the liner extending axially through the throughbore of the liner between the piston and the first end of the housing. | 03-10-2011 |
20110064587 | LOW WASTE PUMP FOLLOWER - A low waste pump follower includes a platen and a perforated member. The platen has a bottom side defining a cavity and the perforated member covers the cavity. The pump follower is driven into a container of viscous material. Material is forced through the perforated member, into the cavity, and pumped to a dispenser. When the pump follower reaches the bottom of the container, it is retracted, and the residual material present in the cavity is retained by the perforated member. | 03-17-2011 |
20110064588 | INLET THROTTLE CONTROLLED LIQUID PUMP WITH CAVITATION DAMAGE AVOIDANCE FEATURE - A liquid pump includes an electronically controlled throttle inlet valve to control pump output. With each reciprocation cycle, a plunger displaces a fixed volume of fluid. When less than this fixed volume is desired as the output from the pump, the electronically controlled throttle inlet valve throttles flow past a passive inlet check valve to reduce output. As a consequence, cavitation bubbles are generated during the intake stroke. Cavitation damage to surfaces that define the inlet port passage are avoided by a specifically shaped and sized cavitation flow adjuster extending from the valve member of the passive inlet check valve. By positioning the cavitation flow adjuster in the inlet port passage, a flow pattern is formed in a way to encourage cavitation bubble collapse away from surfaces that could result in unacceptable cavitation damage to the pump. | 03-17-2011 |
20110070099 | RADIAL BEARINGS FOR DEEP WELL SUBMERSIBLE PUMPS - A bearing assembly for use in a deepwell submersible pump, the pump and a method of pumping a geothermal fluid. The bearing assembly is constructed to include a lubricant conveying mechanism, a bearing sleeve and a multilayer bushing. The lubricant is forced between the bushing and a bearing sleeve by the lubricant conveying mechanism that cooperates with the rotation of a shaft used to connect a power-providing motor with one or more pump impellers. In this way, there exists a substantially continuous lubricant environment between the sleeve and bushing to act in a hydrodynamic fashion. | 03-24-2011 |
20110070100 | CRANKCASE HEATER SYSTEMS AND METHODS FOR VARIABLE SPEED COMPRESSORS - A system includes a compressor having a shell housing a compression mechanism driven by an electric motor in an on state and not driven by the electric motor in an off state. The system also includes a variable frequency drive that drives the electric motor in the on state by varying a frequency of a voltage delivered to the electric motor and that supplies electric current to a stator of the electric motor in the off state to heat the compressor. | 03-24-2011 |
20110070101 | Valve Plate for a Compressor, and Method for Cooling Compressed Air in a Valve Plate of a Compressor - A valve plate includes a cooling medium duct for a compressor used for generating compressed air. From the perspective of a piston chamber of the compressor, at least part of the cooling medium duct extends between the piston chamber and an air discharge valve that is arranged in the valve plate. A method for cooling compressed air in a valve plate of a compressor is also provided. | 03-24-2011 |
20110070102 | Compressor System and Method for the Operation of a Compressor System - A compressor system includes a compressor for supplying compressed air to a commercial vehicle that has an engine with a turbocharger. Air that is pre-compressed by the turbocharger can be sucked in by the compressor via a first air supply pipe. Ambient air that is not pre-compressed can be sucked in by the compressor via a second air supply pipe. A method operates the compressor system including the compressor for supplying the compressed air to the commercial vehicle that has the engine with the turbocharger accordingly. | 03-24-2011 |
20110070103 | Device and Method for Pumping a Cryogenic Fluid - The invention relates to a device for pumping a cryogenic fluid, consisting of a tank for storing a cryogenic fluid containing cryogenic liquid, a cryogenic pump having an inlet pressure loss, and a suction line connecting the tank to the pump, said pumping device including a system for controlling the pressure in the tank for selectively maintaining said pressure at least equal to the saturation pressure of the stored cryogenic fluid plus the inlet pressure loss of the cryogenic pump and optionally plus the value of the pressure losses owing to the pipes forming the suction line connecting the tank to the pump. The invention is characterized in that the pressure-control system includes a duct connecting a high-pressure outlet of the pump to the tank for selectively returning the pumped cold fluid to the tank, said duct including an expansion valve for returning cold gas to the tank. | 03-24-2011 |
20110076158 | METHOD OF OPERATING ADAPTIVE CORE ENGINES - A method of operating a compressor in an adaptive core engine is disclosed. The method comprises the steps of operating a front block compressor to increase pressure of a fluid to a first pressure ratio in a high-power mode operation; operating a rear block compressor coupled to the front block compressor such that the front block compressor and the rear block compressor operate at the same physical speed; closing a rear block stator vane located axially forward from the rear block compressor such that the flow of the fluid into the rear block compressor is substantially cut off; and keeping a blocker door opened such that substantially all of the fluid pressurized by the front block compressor flows through a bypass passage during the high-power mode operation. The operation may be transitioned from the high-power mode to a low-power mode by opening a rear block stator such that the rear block compressor receives at least a portion of the fluid flowing from the front block compressor and maintains an overall engine pressure ratio. | 03-31-2011 |
20110081256 | SYSTEM AND METHOD FOR SENSING A LIQUID LEVEL - A system, method and device may be used to monitor fluid levels in a borehole. The system includes a pulse generator to generate a pulse of electromagnetic energy to propagate along the wellbore towards a surface of the fluid, a detector to detect a portion of the electromagnetic pulse reflected from the surface of the fluid and propagated along the wellbore towards the detector, a processor to analyze detected signals to determine a level of the surface of the fluid, and a pump controller to control the operation of a pump located in the wellbore based on the fluid surface level. | 04-07-2011 |
20110081257 | DRIVETRAIN AND METHOD FOR PROVIDING A SUPPLY TO A COMPRESSED AIR SYSTEM - The invention relates to a drivetrain, in particular motor vehicle drivetrain, | 04-07-2011 |
20110091331 | HIGH PRESSURE PUMPING CARTRIDGES FOR MEDICAL AND SURGICAL PUMPING AND INFUSION APPLICATIONS - Pumping cartridges useful for medical and surgical pumping and infusion procedures are disclosed. Methods for manufacturing and utilizing such pumping cartridges and methods for pumping or infusing liquids for delivery to the body of a patient or a surgical or medical instrument for performing a medical treatment are also described. The invention includes, in one aspect, a series of pumping cartridges comprising cylinders and pistons constructed and arranged for sliding or reciprocating motion within the cylinders. The pistons and/or cylinders can comprise a sealing component including a circumferential, flared sealing flange and can be configured to enable the pumping cartridge to generate high liquid pumping pressures, for example above 1,000 psig. Many of the pumping cartridges disclosed can be relatively easily manufactured at a low cost per unit and can be configured to be detachable from a pump drive unit and disposable after a single use. Various compact flow path configurations are provided in the several pumping cartridge embodiments described, including a Y-shaped configuration, a T-shaped configuration, and an axial configuration. Some pumping cartridges disclosed include pistons including or at least partially forming a valve and/or pistons that are relatively movable with respect to a piston rod to which they are connected. Valve including a valve seat and a movable sealing element able to create a seal capable of withstanding differences in fluid pressures thereacross of at least about 1,000 psi, and in some cases up to in excess of 10,000 psi, without substantial fluid leakage therethrough are disclosed. In some of the disclosed valves, the movable sealing element is concave in shape, and can be curved, to create a mechanical advantage for improved sealing performance. Methods for manufacturing axially-configured pumping cartridges from thin-walled tubing are also disclosed, as well as a series of methods for pumping or infusing a liquid for delivery to the body of a patient or a surgical or medical instrument for performing a medical treatment using the above-mentioned pumping cartridges and devices. | 04-21-2011 |
20110091332 | CALCULATION OF DOWNHOLE PUMP FILLAGE AND CONTROL OF PUMP BASED ON SAID FILLAGE - Methods and apparatus are provided for determining pump fillage, using data arrays of pump plunger position with respect to time and/or pump plunger load with respect to time. In this manner, well operators may be able to accurately monitor the pump fillage and control the pump accordingly. | 04-21-2011 |
20110097216 | LUBRICATION SYSTEM FOR SUBSEA COMPRESSOR - A compression apparatus including a motor, a lubricant source, an umbilical, a compressor, a separation device, and a lubricant recycling assembly. The lubricant source provides a lubricant. The umbilical is fluidly connected to the lubricant source. The compressor is operatively connected to the motor, fluidly connected to the umbilical, and includes a compressor lubricant outlet and a compressor lubricant inlet that is fluidly connected to the umbilical. The separation device is fluidly connected to the compressor, and the lubricant source, and a well including a process fluid, wherein the separation device separates the process fluid into a liquid portion and a gaseous portion, and a portion of the lubricant mixes with the process fluid. The lubricant recycling assembly includes a dirty side fluidly connected to the compressor lubricant outlet, a clean side fluidly connected to the compressor lubricant inlet, a lubricant filter, and a lubricant pump. | 04-28-2011 |
20110097217 | RELOCATABLE SUCKER ROD PUMP ASSEMBLY - A downhole pumping assembly has a tubing string with plural barrels which are arranged in-line with the tubing. The tubing string has a seating location adjacent to each barrel. A standing valve arrangement, which includes a standing valve and a seating device, is located with the standing valve adjacent to the lower end of one of the barrels. A plunger has a traveling valve that is located for reciprocation within the one barrel. The plunger has a clearance with each of the barrels so as to form a fluid seal. The plunger reciprocates inside the barrel so as to lift fluid to the surface. Over time, the barrel will exhibit wear. Instead of pulling the entire tubing string to replace the barrel, the standing valve and the plunger are relocated to one of the other barrels located in the tubing string and reciprocation is resumed to resume pumping. | 04-28-2011 |
20110097218 | METHOD AND APPARATUS FOR GENERATING A FLUID FLOW - An apparatus includes a hydrophilic surface configured to drive flow of a polar fluid responsive to an exclusion zone (EZ) effect, the EZ being formed near the hydrophilic surface. An energy source may provide energy to form or maintain the EZ. | 04-28-2011 |
20110103976 | DEVICE AND METHOD FOR PREPARING LIQUEFIED NATURAL GAS (LNG) FUEL - Apparatus ( | 05-05-2011 |
20110103977 | Control Process for a Piezoelectric Pump of an Electric Household Appliance and an Electric Household Appliance Employing Such a Process - Control process for a piezoelectric pump ( | 05-05-2011 |
20110110793 | SUCTION STABILIZER FOR PUMP ASSEMBLY - A fluid flow stabilizing method and a pump having a stabilized fluid flow passage where a process fluid contains suspended solid particles and is subject to pressure oscillations. The method comprises positioning an expandable membrane along the lower transverse surface, inflating the membrane with a compressible fluid, and alternatingly expanding and contracting the membrane to dampen the pressure oscillations and inhibit settling of the solid particles at the lower transverse surface. The pump comprises a stabilizer comprising a compressible fluid in an expandable membrane elongated along the lower transverse surface of a manifold in fluid communication with the fluid end. Another method comprises reciprocating a plunger in the pump to pass a slurry through the manifold, and alternatingly expanding and contracting a stabilizer in the manifold. | 05-12-2011 |
20110110794 | SENSORS AND METHODS AND APPARATUS RELATING TO SAME - In one form a capacitive sensor is disclosed for immersion into a fluid, the capacitive sensor having a housing and first and second electrodes with the first electrode being disposed at least partially within the housing and electrically connected to a circuit, the second electrode being electrically connected to the circuit via an electrical connection and physically separated from the housing containing at least a portion of the first electrode so that at least a portion of the electrical connection or second electrode is located above or outside of the fluid to reduce the risk that minerals will form between the electrodes. In another form the electrodes are separated into their own cavities of the sensor housing via a bridging member which separates the electrodes to help reduce the risk of mineral buildup occurring between the electrodes. In other forms, capacitors, capacitive sensors, pump controls and systems utilizing these features are disclosed along with methods and apparatus relating to same. In yet other forms additional sensors such as current sensors, thermal sensors, speed sensors, torque sensors and Hall Effect sensors are disclosed for use alone or in combination with said capacitive sensor for detecting fluid level and/or controlling pumps. In still other forms, apparatus and methods relating to self cleaning pumps are disclosed. | 05-12-2011 |
20110110795 | METHOD FOR CONTROLLING A COMPRESSED AIR UNIT AND COMPRESSED AIR UNIT FOR APPLYING SUCH A METHOD - Method for controlling a compressed air unit which is provided with at least one controllable drain valve ( | 05-12-2011 |
20110116938 | METHOD FOR CONTROLLING A HIGH-PRESSURE FUEL PUMP - In a method for controlling a high-pressure fuel pump, which comprises an electrically controllable electromechanical inlet valve ( | 05-19-2011 |
20110123354 | Fluid-working machine and operating method - A fluid-working machine has a plurality of working chambers, e.g., cylinders, of cyclically changing volume, a high-pressure fluid manifold and a low-pressure fluid manifold, at least one valve linking each working chamber to each manifold, and electronic sequencing means for operating said valves in timed relationship with the changing volume of each chamber, wherein the electronic sequencing means is arranged to operate the valves of each chamber in one of an idling mode, a partial mode in which only part of the usable volume of the chamber is used, and a full mode in which all of the usable volume of the chamber is used, and the electronic sequencing means is arranged to select the mode of each chamber on successive cycles so as to infinitely vary the time averaged effective flow rate of fluid through the machine. | 05-26-2011 |
20110123355 | VACUUM PUMP - A vacuum pump surrounded by a ballistic blanket. | 05-26-2011 |
20110129359 | VARIABLE OUTPUT PUMP - An variable output pump is disclosed. The variable output pump having a rotatable first shaft, a first pumping element mounted to the rotatable first shaft, and a coupling mechanism configured to couple the first pumping element to the first shaft for rotation therewith in a first mode, and decouple the first pumping element from the rotatable first shaft in a second mode. A method for varying the output of a fluid pump is also disclosed. The method including rotating a first pumping element and a second pumping element; and preventing rotation of the first pumping element in response to an increase in fluid pressure, while continuing to rotate the second pumping element. | 06-02-2011 |
20110129360 | WHEEL-MOUNTED AIR COMPRESSOR AND METHODS OF USE - The disclosure is generally directed to a wheel-mounted, centrifugally activated, air compressor that will automatically inflate an inflatable vehicle tire back to the proper pressure level when small under-inflation situations occur (e.g., the occurrence of small-to-medium air leaks in a tire). Moreover, the device can be easily attach or fitted into the design of a steel or aluminum wheel, or fitted into a hubcap without modifying the standard design of the wheel-hub assembly. The wheel-mounted device includes a mounting base, cylinder assemblies, and spring-biased centrifugal arms, and is designed to convert changes in the centrifugal force felt by the centrifugal arms as wheel rotation accelerates or decelerates/stops into varying force exerted on positive-displacement pistons. This in turn actuates positive-displacement pumping action at the cylinder assemblies, each of which can provide a short burst of pressurized air into the charging line connected into the associated tire with each compressive stroke. | 06-02-2011 |
20110129361 | COMPRESSOR CAPACITY CONTROL METHOD AND DEVICE FOR CONTROLLING THE CAPACITY OF A COMPRESSOR - A compressor capacity control method and a device is provided. The changeover from a loading state regarding the compressor to an unloading state regarding the compressor and vice versa is controlled, whereby, during a time span from a starting time point when the compressor operation state changes into an unloading state to a time point when a loading/unloading operation-cycle is finished and a predetermined time duration has passed after the starting time point, the time cycle control is performed so that the loading state is changed into the unloading state, at a time point when the predetermined time duration has passed. Further, the discharge pressure of the fluid discharged from the compressor is detected so that the loading state is changed into the unloading state in a case where the discharge pressure exceeds a prescribed upper limit pressure. | 06-02-2011 |
20110135502 | HYDRAULIC RESERVOIR FOR HYDRAULIC REGENERATIVE CIRCUIT - A hydraulic reservoir includes a container having an internal volume, an internal wall dividing the internal volume of the container into a first section and a second section for separately containing the hydraulic fluid, and two one-way valves. The first one-way valve allows the hydraulic fluid to be drawn out of the first section of the hydraulic reservoir and substantially prevents a flow of the hydraulic fluid back into the first section. The second one-way valve allows the hydraulic fluid to be returned to the second section of the hydraulic reservoir and substantially prevents a flow of the hydraulic fluid out of the second section. A cooling/filtering loop may connect the second section and the first section such that the used fluid in the second section may be processed and returned to the first section in a substantially unused condition. | 06-09-2011 |
20110150668 | Pump with crossing lines - The invention relates to a roller pump consisting of a stator with a pump bed formed therein and a rotor for acting on a hose inserted into the pump bed in arcuate form. In accordance with the invention, the ends of the tube guided out of the pump bed cross. | 06-23-2011 |
20110150669 | Non-Propeller Fan - A fan that moves a fluid that includes a flexible membrane with a length defining a long axis that includes at least two supported ends, a support structure that supports the supported ends of the flexible membrane | 06-23-2011 |
20110158822 | Method and Device for Automatically Conveying Liquids of Gases - Disclosed is a device for conveying liquid and/or gaseous media, comprising at least two pumping chambers whose volumes change periodically during operation. Each pumping chamber is provided with at least one intake and discharge valve while all pumping chambers are fitted with a common main inlet and a common main outlet. A drive unit which is configured such that the volumes of the pumping chambers change at a phase shift of 2π/number of chambers is allocated to the pumping chambers. Also disclosed is a device for conveying liquid and/or gaseous media, comprising at least two pumping chambers whose volumes change periodically during operation. Said pumping chambers are embodied and disposed such that at least two adjacent pumping chambers encompass a joint wall which is configured so as to modify the volume of the adjacent pumping chambers. The invention further relates to a method for conveying liquid and/or gaseous media with the aid of the disclosed device. The device is triggered in such a way that the volumes of the pumping chambers change at a phase shift of 2π/number of chambers. | 06-30-2011 |
20110158823 | SHUTTLE PUMP WITH CONTROLLED GEOMETRY - An infusion pump uses an improved shuttle mechanism to more reliably pump liquids in low volumes for medical and other purposes. The improved shuttle uses linear translation and wider, symmetric jaws to grasp infusate tubing and pump liquid infusate through the tubing. Adjustment of the linear motion allows a user to also adjust a pumping volume of the infusion pump. Other shuttles with wider jaws may also pump infusate using a rotary motion. In addition, more than one shuttle, such as two or three shuttles, may be used to approximate continuous pumping. A series of several smaller linear shuttles with sequential actuation may be used as a linear peristaltic pump for general peristaltic pump applications. | 06-30-2011 |
20110158824 | SUBSEA TECHNIQUE FOR PROMOTING FLUID FLOW - The present application is directed to a submersible pumping system operable under hydrostatic pressure. The system suitably comprises a prime mover submersible within a first fluid; a pump means submersible within the first fluid and sealably coupled to the prime mover; and a fluid source in fluid communication with the prime mover, the fluid source providing a second fluid effective to act on the prime mover to power the pump means; wherein the second fluid is discharged in the first fluid after acting on the prime mover; and wherein the second fluid has a chemical composition substantially similar to the first fluid. | 06-30-2011 |
20110158825 | SYSTEM AND METHOD FOR MODIFYING AN AUTOMOBILE ENGINE FOR USE AS A GAS COMPRESSOR - In accordance with various embodiments of the present invention, a system and method are provided for converting a conventional automobile engine into a gas compressor. In various embodiments, the system and method may provide an economical and efficient gas compressor by modification of a balance-opposed internal-combustion engine to provide a balance-opposed gas compressor. More specifically, in some embodiments, the modification may include a uniquely designed cylinder head adapted to convert an automobile engine into a gas compressor for the recovery, gathering, transfer, or staged compression of natural gas. In one embodiment, a four-cylinder balance-opposed engine is utilized. | 06-30-2011 |
20110164990 | MULTI-STAGE COMPRESSOR - A multi-stage compressor ( | 07-07-2011 |
20110171040 | Wind Powered Sea Pump - A wind powered sea pump comprises a propeller, rotor, one or more pumps and one or more flywheels. The present invention relates to a pump powered by the wind to move cold subsurface water from a lower level of the sea to the warmer surface water. The wind powers the rotor causing the shaft to rotate, thereby transmitting power to: one or more pumps, to pump colder sub-surface water from the depths; one or more flywheels to provide gyroscopic stability to entire platform and to a propeller to offset the force of the wind pushing back the wind powered sea pump. The hull provides a sump for a single hose connector to feed water to pumps from a pickup hose of desired diameter to a desired depth. The force of the wind powers the sea pump to transport colder water from a lower depth to the sea surface. A sea anchor provides a pivot point to keep the wind powered sea pump oriented directly into the wind and the weather vane helps with the wind orientation as well as providing space for use as an advertising bill board. | 07-14-2011 |
20110189028 | PRESSURE PULSE INTERACTION MANAGEMENT IN A MULTIPLE PUMP SYSTEM - Methods which include operating a plurality of pumps fluidly coupled to a common fluid line, and modulating a pumping speed of at least one of the pumps to reduce an amplitude of a pressure fluctuation in the common fluid line, where the modulating comprises maintaining an average aggregate pumping rate of the plurality of pumps. | 08-04-2011 |
20110189029 | HYDRAULIC FLUID CONTROL SYSTEM FOR A DIAPHRAGM PUMP - A hydraulic fluid control system for a hydraulic diaphragm pump including at least one hydraulic diaphragm containing a process fluid surrounded by at least one hydraulic fluid chamber containing a hydraulic fluid is provided. The system includes a differential pressure sensor operable to detect and measure a pressure difference between the process fluid contained in the at least one hydraulic diaphragm and the hydraulic fluid contained in the at least one hydraulic fluid chamber; a hydraulic fluid reservoir containing hydraulic fluid; and a hydraulic fluid pump fluidly connected to the hydraulic fluid reservoir and the at least one hydraulic fluid chamber, and operable to provide a volume of hydraulic fluid to the at least one hydraulic fluid chamber in response to the pressure difference measured by the differential pressure sensor. The system is optionally operable to withdraw a volume of hydraulic fluid from the hydraulic fluid chamber. | 08-04-2011 |
20110189030 | FLUID PUMP - The present invention relates to the oil pump, and can be used with a standard pump jack. The pump can be used to withdraw any type of fluid, including water for example. Certain aspects of the invention relate to a method and apparatus for efficiently converting the up and down motion of the pump jack into a reliable vacuum source which can reliably pull unrefined/crude oil from the first depth to the second depth. | 08-04-2011 |
20110194948 | METHOD FOR REGULATING A COMPRESSED AIR SUPPLY SYSTEM OF A MOTOR VEHICLE - A method for regulating a compressed air supply system of a motor vehicle, the system having a driving engine for driving the motor vehicle, which can be switched via a switchable hydrodynamic coupling to a driven connection with an air compressor, so that the air compressor feeds a compressed air system via an air delivery side. | 08-11-2011 |
20110194949 | Compensating Mechanical Seal For Use With A Downhole Electrical Submersible Pump - An electrical submersible pumping system having a pump, a motor, a shaft connecting the pump and motor, and a mechanical seal assembly on the shaft. The mechanical seal assembly includes a sleeve circumscribing the shaft that is axially movable with respect to the shaft. The shaft is retained within a guide mount, an inner circumference of the guide mount extends radially outward to define a shoulder. An annular seat is disposed on the shoulder. One end of a resilient retention assembly couples on the outer surface of the sleeve with its other end compressively urged against the seat. A resilient member is compressively mounted on one end to the sleeve and on another end to the shaft at a location past the end of the sleeve distal from the seat. | 08-11-2011 |
20110200455 | Compressed-air compressor and method of operation - A compressed-air compressor for producing compressed air for a compressed-air system of a vehicle includes a cylinder and a piston. The piston is arranged in the cylinder and divides the interior space of the cylinder into a compression chamber, which can be connected to the compressed-air system of the vehicle for the purpose of conveying compressed air, and a neutral chamber. The neutral chamber is charged with an auxiliary pressure such that the pressure in the neutral chamber is temporally on average higher than atmospheric pressure. The compressed air production by means of the piston/cylinder-type compressed-air compressor is improved such that the maximum value of the torque to be imparted for driving the compressor is reduced. | 08-18-2011 |
20110200456 | PUMP MODULE METHOD FOR A MEDICAL FLUID DISPENSING SYSTEM - A pump module is provided for use in a medical fluid dispensing system that includes a pump body made of a non-compliant material and first and second pump chambers formed in the body. Each of the chambers has a first, open end and an opposite, closed end. The pump module further includes first and second pistons in the first and second pump chambers, respectively. At least one fluid inlet and a fluid outlet are selectively in fluid communication with the first and second pump chambers. Each of the pistons extends through the open end of a respective one of the pump chambers, with each of the pistons being operably translatable within the pump chamber toward and away from the closed end of the chamber. The pistons are translatable independently of one another. | 08-18-2011 |
20110200457 | PUMP DEVICE FOR THE HYDRAULIC ACTUATION OF A VALVE - Pump device for hydraulically activating a valve in particular used for oil and gas exploration wherein such a valve may be a safety valve assigned to a riser or a tree, said pump device including a piston cylinder unit from which pressurized hydraulic fluid can be pumped in direction to the valve. To improve such a pump device so that the pressure of the hydraulic fluid is produced in particular at the corresponding site and near to the valve and is safe and constructed in a simple way an electrical drive means is movably connected to a piston of the piston cylinder unit for alternating movement in axial direction of the piston within the cylinder. | 08-18-2011 |
20110200458 | MANAGING METHOD - A method for managing a pumping device ( | 08-18-2011 |
20110206540 | Liquid Dispensing System With Enhanced Mixing - A dispense apparatus and system for dispensing suspensions or emulsions. The system ensures uniformity of distribution of the dispersed phase within the continuous-phase liquid by moving the fluid through the dispense cartridge, such as with a continuous or pulsating flow. In one embodiment, peristaltic pumps are positioned upstream and downstream of the dispense cartridge, in fluid communication with and forming a single loop with a fluid source. Circulation between the fluid source and the dispense cartridge is maintained. In a second embodiment, a pump circulates fluid into and out of the dispense cartridge and is also in fluid communication with a fluid source such as with a pinch valve to allow proper filling of the dispense cartridge from the fluid source. In a third embodiment, a reversing pump is placed between the dispense cartridge and fluid source to continually or continuously pump fluid into and out of the dispense cartridge. | 08-25-2011 |
20110211974 | Curved pliant film valves - Disclosed is a one-way valve and sealing assemblage wherein an affixed curved pliant film device, a compressible spring, and a reciprocal curved channel surface automatically work cooperatively to permit forward material flow above a predetermined fluid pressure threshold yet check reverse material backflow at any pressure. | 09-01-2011 |
20110211975 | METHOD AND SYSTEM FOR CONTROLLING OPERATION OF A PUMP BASED ON FILTER INFORMATION IN A FILTER INFORMATION TAG - The disclosure describes systems and methods relating generally to filtration. Even more particularly, this disclosure relates to controlling the operation of a pump using filter information. A removable filter can include an electronically readable tag storing filter information. The filter information can be read by a tag reader and rules applied to the filter information to determine whether or how to operate a pump. | 09-01-2011 |
20110211976 | METHOD AND SYSTEM FOR OPTIMIZING OPERATION OF A PUMP - The disclosure describes systems and methods relating generally to filtration. Even more particularly, embodiments described herein relate to optimizing operating routines of a pump based on filter information and process fluid information. The filter information can be stored on an electronically readable tag on the filter. | 09-01-2011 |
20110217185 | System and Method For Reducing Compressor Noise - A noise reduced compressor has a body, an energy dissipation element, and a structural element configured to retain the energy dissipation element relative to the body. A noise reducer for an HVAC system compressor has an energy dissipation element and a structural element connected to the energy dissipation element. A method of reducing compressor noise includes disposing an energy dissipation element between a body of the compressor and a structural element and compressing the energy dissipation element against between the body of the compressor using the structural element. | 09-08-2011 |
20110229345 | PUMPING SYSTEM FOR PUMPING LIQUID FROM A LOWER LEVEL TO AN OPERATIVELY HIGHER LEVEL - A pumping system for pumping liquid from a lower level to an operatively higher level; said pumping system comprising, pumping device fitted at the lower level; a bent delivery conduit; said conduit having an operatively inclined ascending conduit section; an operatively inclined descending conduit section and an operatively horizontal peak section between said inclined sections; one end of said ascending conduit fitted to the outlet of said pumping device and one end of said descending conduit being below liquid level of said higher level; a junction being defined between said horizontal peak section and said descending conduit section; a port opening provided at the peak section spaced apart from said junction; and control means adapted to introduce pressurized air into and evacuate air from said delivery conduit through said port. | 09-22-2011 |
20110236225 | SYSTEM, APPARATUS, AND METHOD FOR RAPID PUMP DISPLACEMENT CONFIGURATION - A system for changing a pump displacement configuration includes a blender that provides low-pressure fluid to a pump. The pump has a power end and fluid end, where the fluid end includes a number of plungers. The system includes an actuator that couples the power end with a selectable subset of the plungers. The system further includes a controller that selects a subset of the plungers according to a job pumping rate, a job pumping pressure, and/or a fluid end failure event indicator. The controller further commands the actuator to couple the selected subset of the plungers to the power end. | 09-29-2011 |
20110236226 | METHOD OF OPERATING A COMPRESSOR AND AN APPARATUS THEREFOR - One or more compressor feed streams are passed to one or more inlets of a first compressor. Each compressor feed stream passes through a compressor feed valve. The one or more compressor feed streams are in the first compressor to provide a compressed discharge stream at the outlet of the first compressor, while monitoring for a first indicator of a blocked outlet event of the first compressor and instructing the closure of the compressor feed valves ( | 09-29-2011 |
20110255993 | PRECOMPRESSION EFFECT IN PUMP BODY - The current application discloses various embodiments where a pre-compressive force is applied to a defined zone of the fluid end of a pump so as to extend the operational life of the fluid end by reducing stress and fatigue level at the defined zone of the fluid end. In one embodiment, the defined zone comprises one or more recesses near the piston bore of the fluid end. In another embodiment, the defined zone comprises one or more recesses near the inlet bore of the fluid end. | 10-20-2011 |
20110255994 | AIR COMPRESSOR SYSTEM AND METHOD OF OPERATION - Air compressor systems, upgrade kits, computer readable medium, and methods for controlling an air compressor for improved performance. The methods may include receiving a working air requirement; determining an estimated air pressure of the air compressor to deliver the working air requirement; measuring a pressure of the air compressor; comparing the measured pressure with the calculated estimated air pressure; if the measured pressure of the air compressor is greater than the determined estimated air pressure by a predetermined greater amount, then decreasing an output control of the air compressor; and if the measured pressure of the air compressor is less than the calculated estimated air pressure by a predetermined lesser amount then increasing the output control of the air compressor. The air compressor may be controlled based on a measured pressure of delivered working air. An oil control system may shut off oil to parts of the air compressor. | 10-20-2011 |
20110255995 | AIR COMPRESSOR SYSTEM AND METHOD OF OPERATION - Air compressor systems, upgrade kits, computer readable medium, and methods for controlling an air compressor for improved performance. The methods may include receiving a working air requirement; determining an estimated air pressure of the air compressor to deliver the working air requirement; measuring a pressure of the air compressor; comparing the measured pressure with the calculated estimated air pressure; if the measured pressure of the air compressor is greater than the determined estimated air pressure by a predetermined greater amount, then decreasing an output control of the air compressor; and if the measured pressure of the air compressor is less than the calculated estimated air pressure by a predetermined lesser amount then increasing the output control of the air compressor. The air compressor may be controlled based on a measured pressure of delivered working air. An oil control system may shut off oil to parts of the air compressor. | 10-20-2011 |
20110255996 | INVERTED FLUID DISPENSING PUMP AND DISPENSING SYSTEM, AND METHOD OF USING AN INVERTED PUMP - A valve system for controlling a flow of a fluid is provided that includes a port including a valve seat, and a ball adapted to cooperate with the valve seat to seal the port. The valve system also includes an arrangement for magnetically positioning the ball on the valve seat. A method for operating a pump is provided that includes releasing a piston causing the piston to return to an unactuated position to increase the interior volume forcing fluid in a reservoir to move into the piston body through a port due to a pressure differential between the interior volume and the reservoir. The method also includes sealing the port with a ball after the piston returns to an unactuated position and the pressure differential falls below a threshold by magnetically attracting the ball to a valve seat of the port. | 10-20-2011 |
20110255997 | HYDRAULIC GRAVITY RAMP PUMP - A piston type pumping apparatus comprises a vertically oriented cylinder having a top and a bottom with a first aperture. There are first and second passageways for liquid in the cylinder at the top and bottom respectively thereof. A piston is reciprocatingly mounted within the cylinder and has an area against which pressurized fluid acts in the direction of movement of the piston. A hollow piston rod is connected to the piston and extends below the piston and slidably through the first aperture. There is a reload chamber below the cylinder. The piston rod extends slidably into the reload chamber and has a third passageway for liquid communicating thereto. A first one-way valve is located in the third passageway. There is also a fourth passageway that extends from the reload chamber to a source of liquid to be pumped and a second one-way valve therein. | 10-20-2011 |
20110268586 | SYSTEMS AND METHODS FOR ARTIFICIALLY LIFTING A PRODUCT FROM A WELL - Systems and methods for providing a pump driving unit for driving an above ground pump. The pump driving unit utilizes a single prime mover and a drive train for actuating multiple components required to drive the above ground pump. Some implementations of the pump driving unit include phase separation devices, filtering units, and cooling units that may also be actuated by the drive train of the unit. Some implementations of the pump driving unit further include an enclosure and a platform for containing the unit and simplifying on-site installation. | 11-03-2011 |
20110280738 | METHOD OF SURGE PROTECTION FOR A DYNAMIC COMPRESSOR USING A SURGE PARAMETER - A method of surge protection for a dynamic compressor that has a corresponding compressor map. A control system continually calculates an equivalent polytropic head parameter in order to define a surge limit line. The system then calculates a control parameter and determines the distance the control parameter to the surge limit line wherein the control parameter is dynamic to changes in compressor load and invariant to changes in suction conditions and gas compressibility. As a result of the distance of the control parameter to the surge limit line, the surge valve of a dynamic compressor is actuated to prevent surge. | 11-17-2011 |
20110280739 | METHOD AND SYSTEM FOR PUMPING LIQUID FROM AN OFFSHORE NATURAL GAS PRODUCTION WELL - A pump assembly comprises a first piston near a lower end of a coiled water and/or other condensed liquid discharge conduit, which is actuated by second and third pistons that are arrange at the upper and lower ends of a hydraulic or pneumatic fluid conduit, wherein the third piston is connected to a floating body, which is oscillated by waves, such that a pair of one way check valves suck and push production water and other condensed liquids sequentially from a lower region of the well into a lower portion and subsequently into an upper portion of the coiled water and other condensed liquid outlet conduit. | 11-17-2011 |
20110280740 | ULTRA-LOW FRICTION AIR PUMP FOR CREATING OSCILLATORY OR PULSED JETS - An air pump positioned within a hollow space in an aerodynamic structure for controlling the flow over an aerodynamic surface thereof, includes a movable member linearly displaced by a very low friction piston mechanism and a compression chamber open to the exterior of the aerodynamic surface through an orifice. Reciprocal displacement of the very low friction movable member changes the volume of the compression chamber to alternately expel fluid (e.g., air) from and pull fluid into the compression chamber through the orifice. The movable member includes a piston oscillating within a piston housing each having an ultra-low friction coating for improved thermal performance and reduced maintenance. Fluid intake to the compression chamber may be increased through the use of a one-way valve located either in the aerodynamic surface, or in the piston. Multiple flapper valves may surround the orifice in the aerodynamic surface for increased fluid control. | 11-17-2011 |
20110286861 | AIR COMPRESSOR SYSTEM AND METHOD OF OPERATION - Air compressor systems, upgrade kits, computer readable medium, and methods for controlling an air compressor for improved performance. The methods may include receiving a working air requirement; determining an estimated air pressure of the air compressor to deliver the working air requirement; measuring a pressure of the air compressor; comparing the measured pressure with the calculated estimated air pressure; if the measured pressure of the air compressor is greater than the determined estimated air pressure by a predetermined greater amount, then decreasing an output control of the air compressor; and if the measured pressure of the air compressor is less than the calculated estimated air pressure by a predetermined lesser amount then increasing the output control of the air compressor. The air compressor may be controlled based on a measured pressure of delivered working air. An oil control system may shut off oil to parts of the air compressor. | 11-24-2011 |
20110293440 | DOUBLE STANDING VALVE SUCKER ROD PUMP - A sucker rod pump with no travelling valve consisting of, from the bottom: hold down with pump inlet, lower standing valve, hollow coupling, upper standing valve suspended within the coupling, relief valve, hollow pump housing, solid piston within the housing, and barrel to clean and retain the piston in the housing. The piston attaches to and reciprocating with the rod string. Peripheral channels in the relief valve communicate between the coupling and the housing. A central channel in the relief valve communicates between the upper standing valve and the pump's outlets. The upstroke pulls fluid from the bottom of the well upward through the open lower standing valve, around the closed upper standing valve and into the housing chamber. The down stroke pushes fluid from the housing chamber past the closed lower standing valve and through the open upper standing valve to the pump's exit into the tubing. | 12-01-2011 |
20110300003 | Pumping Device For Pumping Fluid - The present invention describes a pumping device ( | 12-08-2011 |
20110311373 | Rotary pump for a vehicle - Rotary pump intended to pump a liquid for the pollution control of exhaust gases in a system on board a vehicle and comprising a rotor ( | 12-22-2011 |
20110311374 | Submersible Pumping System - A technique is provided for pumping fluids in a subterranean wellbore. A submersible pumping system can be deployed in a wellbore for moving desired fluids within the wellbore. The pumping system energizes the desired fluid movement by reciprocating a working fluid between expandable members. | 12-22-2011 |
20110318195 | PUMP ARRANGEMENT WITH TWO PUMP UNITS, SYSTEM, USE AND METHOD - The present invention relates to a pump arrangement comprising two pump units, each pump unit comprising a pumping cylinder, a reciprocally movable pumping piston, said pumping piston delimiting a pumping chamber in the pumping cylinder in communication with a pump port for fluids, an actuator connected to the pumping piston, and means for determining a value dependent on the position of the pumping piston in the pumping cylinder, said pump arrangement further comprises a first set of valves connecting the pump port of each pump unit to a source line and a delivery line for pumped fluids, wherein the pump arrangement comprises means for regulating the flow of the pumped fluids based on the value dependent on the positions of the pumping pistons in the pump units. The present invention further relates to a system comprising such a pump arrangement and a method for pumping fluids in said pump arrangement. | 12-29-2011 |
20120003104 | PIEZO-CONTROLLED AND-OR PRESSURE RIPPLE COMPENSATING FLUID SEPARATION PUMP - An embodiment discloses a fluid pump for use in a fluid separation system for separating compounds of a fluidic sample in a mobile phase, the fluid pump comprising a reciprocatable piston configured for moving the mobile phase, a pump drive configured for driving the reciprocatable piston, and a control unit configured for controlling the pump drive so that pressure ripples in a pressure profile of the fluid pump are at least partially compensated to thereby bring the pressure profile in accordance with a predefined target characteristic. Another embodiment discloses a fluid pump for use in a fluid separation system for separating compounds of a fluidic sample in a mobile phase, the fluid pump comprising a reciprocatable piston configured for moving the mobile phase, and a pump drive configured for driving the reciprocatable piston using a piezomechanism. | 01-05-2012 |
20120027622 | Peristaltic Pump - A peristaltic pump comprises a pump unit including a pump which receives a replaceable tube. In operation, the pump unit applies a peristaltic action to the tube to induce fluid flow between inlet and outlet ends of the tube. | 02-02-2012 |
20120027623 | METHOD AND DEVICE FOR CONTROLLING A HOT RESTART OF A CENTRIFUGAL COMPRESSOR - Methods, devices and systems capable of performing a hot restart of a compressor driven by a turbine are provided. The turbine has a high speed shaft and a low speed shaft connected to the compressor. A base slow roll speed at which a speed of the low speed shaft is in a slow roll range is maintained at the high speed shaft for a predetermined time. Then, when a vibration amplitude of the compressor is larger than a vibration limit, the maintaining is repeated. Otherwise, a set speed of the high speed shaft is increased, until a current speed of the low speed shaft reaches a minimum operating speed. If, while increasing the set speed, the vibration amplitude becomes larger than the vibration limit, the maintaining is repeated. | 02-02-2012 |
20120027624 | FLUID TRANSPORTER AND FLUID TRANSPORTER DRIVING METHOD - A fluid transporter which transports fluid by pressing a plurality of radially disposed pressing shafts against a tube held in a circular-arc shape in directions from the inside of the circular-arc shape in accordance with rotation of a rotational pressing plate having a plurality of projections on the outer circumference thereof so as to allow flow of fluid includes: a first detecting section which detects the rotation angle of the rotational pressing plate; a second detecting section which detects the rotation angle of either a driving rotor for giving a rotational force to the rotational pressing plate or a reduction transmission mechanism for connecting the driving rotor and the rotational pressing plate; a data table which shows the relationship between the rotation angle of the rotational pressing plate and a cumulative delivery amount; and a controller which controls the drive of the driving rotor. | 02-02-2012 |
20120034105 | Linear peristaltic pump - An improved technique for delivering a fluid to an outlet from a storage container takes the form of a linear peristaltic pump which enables the use of two elements: a single bearing and a valve. The single bearing provides enough pressure to a flexible tube in which the fluid moves to close the tube off at a single location. The valve controls the fluid flow out of the flexible tube at the egress point in conjunction with the bearing and is attached to the flexible tube at a single location. In this manner, when the bearing is engaged with the flexible tube, the bearing divides the flexible tube into two subvolumes, one of which contains fluid to be moved toward the egress point at the far end of the flexible tube and the other creating suction for intake of fluid immediately behind the bearing. A bearing controller moves the bearing along the surface of the flexible tube when so engaged; in doing so, the bearing moves the fluid. | 02-09-2012 |
20120039725 | METHOD, SYSTEM AND APPARATUS FOR POWERING A COMPRESSOR VIA A DAM - A method, system and apparatus for powering a compressor are provided. Flowing water is supplied from a dam to a power generation mechanism via a compressor water channel. The flowing water is used to drive the power generation mechanism in order to generate power. One or more compressor stages of a heat engine are then driven using power generated by the power generation mechanism. The flowing water in the compressor water channel is driven at least in part by gravity due to head of the dam. | 02-16-2012 |
20120039726 | METHOD FOR OPERATING A HYDRAULIC APPARATUS OF A TRANSMISSION DEVICE - A method for operating a hydraulic device ( | 02-16-2012 |
20120057990 | System and Method for a Pump With Reduced Form Factor - Embodiments of the present invention provide pumps with features to reduce form factor and increase reliability and serviceability. Additionally, embodiments of the present invention provide features for gentle fluid handling characteristics. Embodiments of the present invention can include a pump having a motor driven feed stage pump and a motor driven dispense stage pump. The feed stage motor and the feed stage motor can include various types of motors and the pumps can be rolling diaphragm or other pumps. According to one embodiment, a dispense block defining the pump chambers and various flow passages can be formed out of a single piece of material. | 03-08-2012 |
20120057991 | FLUID-WORKING MACHINE AND METHOD OF OPERATING A FLUID-WORKING MACHINE - In a method of detecting a fault in a fluid-working machine including a plurality of working chambers of cyclically varying volume, each working chamber is operable to displace a volume of working fluid which is selectable for each cycle of working chamber volume to carry out a working function responsive to a received demand signal. An output parameter of the fluid working machine, which is responsive to the displacement of working fluid by one or more of the working chambers to carry out the working function, is measured. It is determined whether the measured output parameter fulfils at least one acceptable function criterion, taking into account the previously selected net displacement of working fluid by a working chamber during a cycle of working chamber volume to carry out the working function. | 03-08-2012 |
20120063923 | POSITIVE GRIP FINGERS IN A PERISTALTIC PUMP - A method for enhancing peristaltic pumping in a tube type infusion pump is provided. The method includes providing an adhesion region on a pumping finger of an infusion pump for creating an adhesion between the pumping finger and a pumping segment of the infusion pump such that when the pumping finger is moved from an occluded position to an initial position the adhesion forcibly restores the pumping segment from an occluded state to a non occluded state. | 03-15-2012 |
20120063924 | RECIPROCATING FLUID PUMPS INCLUDING MAGNETS, DEVICES INCLUDING MAGNETS FOR USE WITH RECIPROCATING FLUID PUMPS, AND RELATED METHODS - Reciprocating fluid pumps include a plunger configured to expand and compress in a reciprocating action to pump fluid, and one or more magnets carried by the plunger. The one or more magnets may be used to impart a force on the plunger when the plunger expands and compresses in the reciprocating action within a pump body responsive to a magnetic field. Shuttle valves for shifting flow of pressurized fluid between at least two conduits include a spool movable within a valve body and one or more magnets carried by the spool. The one or more magnets may be used to impart a force on the spool responsive to a magnetic field. Reciprocating fluid pumps may include such shuttle valves. Methods include forming and using such pumps and shuttle valves. | 03-15-2012 |
20120070315 | Chemical Reactor System and Methods to Create Plasma Hot Spots in a Pumped Media - Methods and apparatus are disclosed to produce gas vapor bubbles in a liquid media and collapsing the bubble to create a plasma hot spot. Generated bubbles are introduced and collapsing the bubbles results in the partial or total conversion of the internal and boundary layer gas and liquid phase content of the bubble to plasma, ionized gas and ionized liquid. Consequently, a change or increase in the reactivity of the elements and compounds in the gas or liquid phases of the bubble and the surrounding liquid media occurs. | 03-22-2012 |
20120076668 | Wellbore fluid removal systems & methods - Deliquefication systems with an upper pumping section for discharging fluid pumped to it by a lower pumping section; in one aspect, for providing liquid from a wellbore to the upper section for removal of the liquid from the wellbore; and, in one aspect, such systems for dewatering a gas well. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b). | 03-29-2012 |
20120076669 | Peristaltic Pumping Apparatus and Method - The present disclosure relates to a rotor assembly for a peristaltic pump. The pump includes a first rotor having a plurality of rollers and a second rotor, coupled to the first rotor, having a plurality of rollers. The rollers of the first and second rotors are located at an angle of about 45° relative to each other. In an embodiment, the first rotor and the second rotor are circular. In another embodiment, the rollers of the first rotor are equally spaced or located at an angle, about 90°, relative to each other. In yet another embodiment, the rollers of the second rotor are equally spaced or located at an angle, about 90°, relative to each other. A peristaltic pump and a method of supplying fluid to a surgical area are also disclosed. | 03-29-2012 |
20120076670 | FLUID-WORKING MACHINE AND METHOD OF OPERATING A FLUID-WORKING MACHINE - In a method of operating a fluid-working machine, the volume of working fluid displaced during each cycle of working chamber volume is selected taking into account the availability of other working chambers. The status of each working chamber is monitored and a working chamber treated as unavailable if it is found to be malfunctioning. A working chamber may be treated as unavailable if it is allocated to an alternative working function. A fault may be detected in a working chamber by determining whether a measured output parameter of the fluid working machine fulfils at least one acceptable function criterion taking into account the previously selected net displacement of working fluid by a working chamber during a cycle of working chamber volume to carry out the working function. | 03-29-2012 |
20120087806 | Fluid Sealing Elements and Related Methods - Methods and mechanisms for fluid sealing are provided. The disclosed mechanisms include a tool having a cavity configured to form a toroidal vortex and a fluid sealing element to induce an azimuthal variation of the toroidal vortex (a “dynamis seal”). The fluid sealing element may include a sharp change in the axial symmetry of the cavity to induce the azimuthal variation. Some exemplary shapes of the fluid sealing element may include a notch in a cavity, a step shaped cavity, or an angular cavity in the tool. Methods for manufacturing such a dynamic seal is also provided as well as methods for producing hydrocarbons with a plunger having the dynamic seals. The tool may be a plunger, a pig, an in-flow control device, or other cylindrical device traveling through a conduit or tubular member. | 04-12-2012 |
20120100013 | METHOD OF SURGE PROTECTION FOR A DYNAMIC COMPRESSOR USING A SURGE PARAMETER - A method of surge protection for a dynamic compressor that has a corresponding compressor map. A control system continually calculates an equivalent polytropic head parameter in order to define a surge limit line. The system then calculates a control parameter and determines the distance the control parameter to the surge limit line wherein the control parameter is dynamic to changes in compressor load and invariant to changes in suction conditions and gas compressibility. As a result of the distance of the control parameter to the surge limit line, the surge valve of a dynamic compressor is actuated to prevent surge. | 04-26-2012 |
20120100014 | SUBMERSIBLE PUMP SYSTEM - A submersible pump system includes a submersible pump assembly having one or more stages of impellers and a submersible motor assembly that drives the pump assembly. The submersible pump assembly includes a motor housing, a motor within the motor housing for driving the pump assembly and a control module mounted to the motor housing for operating the motor. The control module is electrically connected to a power line and comprises a controller and a variable frequency drive driven by the controller. The controller operates the variable frequency drive to drive the motor to maintain a constant pressure output condition from the pump assembly. | 04-26-2012 |
20120107142 | INTERNALLY SUPPLIED AIR JET COOLING FOR A HYDRAULIC PUMP - A compressed gas powered machine is provided. The machine includes: an outlet and a hollow member fluidly connected to the outlet and configured to receive gas expended from the machine through the outlet the hollow member defining holes oriented to allow the gas contained in the hollow member to blow on various parts of the machine. | 05-03-2012 |
20120107143 | METHOD AND SYSTEM FOR COOLING A MOTOR-COMPRESSOR WITH A CLOSED-LOOP COOLING CIRCUIT - A fluid compression system is disclosed having a hermetically-sealed housing with at least a motor and a compressor arranged therein. The motor may drive both the compressor and a blower device coupled to the housing or otherwise arranged within the housing and configured to circulate a cooling gas throughout the housing and thereby cool the motor and accompanying radial bearings. The blower device circulates the cooling gas through a closed-loop circuit which may include a heat exchanger and gas conditioning skid. Carbon ring seals may be used to seal the shaft on both sides of the compressor so as to prevent the migration of liquid and solid contaminants into the closed-loop cooling circuit. | 05-03-2012 |
20120107144 | VARIABLE BORE CONVERTIBLE COMPRESSOR CYLINDER - A variable bore reciprocating compressor cylinder, with a family of removable liners of various diameters that can accommodate significant changes in bore diameters without significant increases in fixed clearance volume. In one embodiment of the invention, valves are added or subtracted as required in conjunction with optimizing the flow area of the liner and head ports to minimize clearance volume and to keep overall flow losses within acceptable values. In another embodiment of the invention, smaller valves and valve extension insert/adapters are incorporated to further extend the practical operating range with smaller bore diameters. | 05-03-2012 |
20120114504 | VERTICAL SHAFT PUMPING SYSTEM - A vertical shaft pumping system includes a hollow shaft with an inner bore, an inlet end and an outlet end, the outlet end with at least one liquid distribution hole. It further includes an impeller positioned at the lower inlet end of the shaft, with a cylindrical base portion with a lower end, a central hole for drawing fluid into the shaft, and a plurality of teeth extending upwards from the cylindrical base portion and extending radially from the central hole to the outer cylindrical circumference for increasing tractive force of liquid in the shaft when the impeller and shaft are rotating; and a motor for rotating the shaft with the impeller to centrifugally pump a liquid vertically in the shaft from the lower inlet end to the upper outlet end. | 05-10-2012 |
20120121441 | LOW RESTRICTION RESONATOR WITH ADJUSTABLE FREQUENCY CHARACTERISTICS FOR USE IN COMPRESSOR NEBULIZER SYSTEMS - A compressor system and a method of reducing noise in the compressor system. The compressor system includes an inlet port configured to receive gas, an outlet port configured to output compressed gas, and a compressor pump connected to the inlet port via a pneumatic line and to the outlet port. The compressor pump is configured to pressurize gas input through the inlet port and to output a compressed gas through the outlet port. The compressor pump generates noise during operation of the compressor pump. The compressor system further comprises a side- branch resonator having a housing forming a cavity and an elongated member connected to the housing. The elongated member is pneumatically connected to the pneumatic line between the inlet port and the compressor pump. The side-branch resonator is configured to substantially reduce noise generated by the compressor pump, to monitor an operation of the compressor pump, or both. | 05-17-2012 |
20120134848 | HYDRAULIC FAN CIRCUIT HAVING ENERGY RECOVERY - A hydraulic fan circuit is disclosed. The hydraulic fan circuit may have a primary pump, a high-pressure passage fluidly connected to the primary pump, and a low-pressure passage fluidly connected to the primary pump. The hydraulic fan circuit may also have at least one accumulator in selective fluid communication with at least one of the high- and low-pressure passages, a motor, and a fan connected to the motor. The hydraulic fan circuit may further have a fan isolation valve fluidly connected to the high- and low-pressure passages. The fan isolation valve may be movable between a flow-passing position at which the motor is fluidly connected to the primary pump via the high- and low-pressure passages, and a flow-blocking position at which the motor is substantially isolated from the primary pump. | 05-31-2012 |
20120134849 | CHARACTER PARAMETERS OBTAINING METHOD FOR DISPLACEMENT CONTROL MECHANISM OF HYDRAULIC PUMP AND DETECTING DEVICE FOR CARRYING OUT THE METHOD - A character parameters obtaining method for a displacement control mechanism of a hydraulic pump and a detecting device for carrying out the method are disclosed. The method involves constructing a hydraulic system; outputting hydraulic energy by the hydraulic pump driven by a primary motor; detecting pressure of a displacement control mechanism; obtaining middle parameters by obtaining the time required for preset change of the pressure at the output end of the displacement control mechanism; obtaining character parameters of the displacement control mechanism according to the middle parameters. The method can obtain the character parameters of the displacement control mechanism by the pressure detection, so that the performance of the displacement control mechanism can be judged according to the obtained character parameters. The method avoids the need of obtaining the output flow of the hydraulic pump so as to eliminate the problem caused by using a flow meter or using an obliquity sensor to obtain the character parameters. | 05-31-2012 |
20120141301 | METHOD AND APPARATUS FOR PREDICTING MAINTENANCE NEEDS OF A PUMP BASED AT LEAST PARTLY ON PUMP PERFORMANCE ANALYSIS - A signal processor is provided comprising one or more signal processor modules configured to: compare signaling containing information about historical data related to the performance of a pump; and provide corresponding signaling containing information about predicted maintenance needs of the pump on a real time basis based at least partly on the signaling compared containing information about the historical data related to the performance of the pump. The one or more signal processor modules may be configured to compare over time the hydraulic power generated by the pump and electric power consumed by a motor driving the pump, including tracking a ratio of hydraulic to electric power. The one or more signal processor modules may be configured to predict maintenance needs based on an algorithm that takes into account a trade-off between the cost of power consumed by a motor driving the pump and the cost associated with the pump maintenance in order to substantially minimize the total cost of operating the pump. | 06-07-2012 |
20120148419 | Pump Control and Method - A pump control ( | 06-14-2012 |
20120148420 | CONTROL METHOD OF ASSIST PUMP FOR AUTOMATIC TRANSMISSION OF VEHICLE PROVIDED WITH ISG SYSTEM - A control method of an assist pump for automatic transmission of a vehicle is provided with an ISG system. The control method includes executing idle stop and go, detecting present transmission gear shift and operating an assist hydraulic pump at a predetermined standard RPM according to detected present transmission gear shift. The control method may reduce electric power consumption and enhance battery durability and fuel efficiency. | 06-14-2012 |
20120156059 | CONTINUOUS FLOW THERMODYNAMIC PUMP - A thermodynamic pump for provides gaseous hydrogen employing a plurality of liquid hydrogen (LH2) tanks sequentially pressurized with gaseous hydrogen (GH2) from an accumulator. A heat exchanger receiving LH2 from each of the plurality of tanks as sequentially pressurized returns pressurized GH2 to the accumulator for supply to an engine. | 06-21-2012 |
20120163999 | PUMP MODULE, PUMP BASE MODULE AND PUMP SYSTEM - The invention-based pump module ( | 06-28-2012 |
20120164000 | HIGH PRESSURE SOLIDS PUMP - The present invention generally relates to an abrasive particles injection system. In one aspect, a high pressure solids pump for use in an abrasive particles injection system is provided. The high pressure solids pump includes a pump body having a chamber with an inlet and an outlet. The high pressure solids pump further includes a first valve connected to the inlet for allowing abrasive particles to enter the chamber. The high pressure solids pump also includes a second valve connected to the outlet for allowing pressurized abrasive particles to exit the chamber. Additionally, the high pressure solids pump includes a piston member movable within the chamber of the pump body, wherein the piston member is configured to pressurize the abrasive particles. In another aspect, a method of injecting abrasive particles into a high pressure line is provided. | 06-28-2012 |
20120164001 | VARIABLE CAPACITY OIL PUMP - The invention relates to a wind turbine being provided with a fluid displacement means for ensuring a certain increased pumping capacity at a certain reduced rotational speed of the main shaft of the rotor and thus of a drive shaft from a gear box of the wind turbine. The invention also relates to a wind turbine being provided with fluid displacement means for ensuring a certain increased pumping capacity at a certain increased rotational speed of the main shaft of the rotor and thus of a drive shaft from a gear box of the wind turbine. The means may be mechanical, hydraulic, pneumatic or electrical. Additionally, the invention relates to a method for operating a wind turbine being provided with such fluid displacement means. | 06-28-2012 |
20120171051 | Bilge pump and method - A vacuum assisted bilge pump small enough for the crowded spaces below decks in the engine and pump room of a boat which can also function as a transfer pump, a crash pump and a fire extinguisher. The pump comprises two chambers and is internally configured to aid in the separation of gas and liquid increasing pump throughput. | 07-05-2012 |
20120171052 | MOTOR COMPRESSOR SYSTEM AND METHOD - A motor compressor system in which the motor is configured to activate the compressor. The system includes a common casing; a motor cartridge housing a motor, the motor cartridge detachably provided inside the common casing; and a compressor cartridge housing a compressor detachably connected to the motor, the compressor cartridge detachably provided inside the common casing. | 07-05-2012 |
20120177505 | VARIABLE STROKE CONTROL STRUCTURE FOR HIGH PRESSURE FUEL PUMP - Control structure controls movement of a high pressure fuel pump piston of a fuel system. The piston is constructed and arranged to be inserted into or withdrawn from a pumping chamber to control a flow of fuel from the pumping chamber. The control structure includes a rocker arm with an associated roller follower. The roller follower is constructed and arranged to engage a camshaft of an engine. The rocker arm is operatively associated with the piston such that movement of the camshaft causes movement of the rocker arm and thus movement of the piston. The control structure also includes actuator structure associated with the rocker arm and constructed and arranged to vary a percentage of camshaft motion imparted to the piston via the rocker arm. | 07-12-2012 |
20120177506 | DISPOSABLE ELEMENT, SYSTEM FOR PUMPING AND METHOD FOR PUMPING A LIQUID - The present invention relates to a disposable element comprising at least one first part, in which channel structures are recessed in the surface, and a second part sealingly covering said first part, with the larger part of the first part and/or of the second part being made rigid and/or being applied to a rigid carrier structure, and with these first and/or second parts, however, having at least one flexibly made region. The invention furthermore relates to a system for pumping and a method for pumping a liquid. | 07-12-2012 |
20120177507 | LABORATORY SYRINGE PUMPS - A syringe pump which includes a pusher block is slidably mounted on bearings on one or more guide rails. The pusher block is advanced or retracted by a lead screw having an axis which is offset from the axis of the one or more guide rails which are supported at their respective ends by support blocks, wherein forward and/or trailing sides of the pusher block bearings are extended, and wherein the guide rail support blocks include recesses for accommodating the extended ends of the pusher block slide bearings. In another embodiment, the syringe pump includes quick connect-disconnect fixtures for loading and unloading syringes. Other mechanical and programmable improvements are described in the specification. | 07-12-2012 |
20120177508 | CAPACITY MODULATION SYSTEM FOR COMPRESSOR AND METHOD - An apparatus is provided and may include a control valve that moves a pressure-responsive unloader valve between a first position permitting flow through a valve plate and into a compression mechanism and a second position restricting flow through the valve plate and into the compression mechanism. The control valve may include at least one pressure-responsive valve member movable between a first state supplying discharge-pressure gas to the unloader valve to urge the unloader valve into one of the first position and the second position and a second state venting the discharge-pressure gas from the unloader valve to move the unloader valve into the other of the first position and the second position. | 07-12-2012 |
20120189465 | HIGH PRESSURE FUEL PUMP PISTON ASSEMBLY - A piston assembly for a fuel pump comprises a first piston sub-assembly and a second piston sub-assembly. The first piston sub-assembly comprises a first piston portion, a first check ball connected to a first spring and a first O-ring. The first check ball forms a fluid tight seal against the first piston portion when the first spring is uncompressed. The first check ball allows fluid flow relative to the first piston portion when the first spring is compressed. The first O-ring has a front side and a back side. The first O-ring forms a fluid tight seal relative to the first piston portion. The second piston sub-assembly comprises a second piston portion, a second check ball connected to a second spring, and a second O-ring. The second check ball forms a fluid tight seal against the second piston portion when the second spring is uncompressed. The second check ball allows fluid flow relative to the second piston portion when the second spring is compressed. The second O-ring has a front side and a back side. The second O-ring forms a fluid tight seal relative to the second piston portion. The fluid flow relative to the first piston portion allows fluid to contact the front side of the second O-ring and the back side of the first O-ring. | 07-26-2012 |
20120189466 | Well Deployed Heat Fin For ESP Motor - An electrical submersible pumping system (ESP) for use in pumping fluids from a wellbore. The ESP includes fins on an outer portion of the ESP that transfer heat from a motor in the ESP to fluid flowing past the fins. A self removing material is provided over the fins when the ESP is deployed into the wellbore to protect the fins against being damaged when the ESP contacts a wall of the wellbore. The material can corrode, erode, melt, dissolve, disintegrate, or otherwise automatically decouple from the fins when the ESP is disposed in the wellbore. | 07-26-2012 |
20120189467 | Method for Controlling Delivery Quantity, and Reciprocating Compressor Having Delivery Quantity Control - The invention relates to a method for the delivery quantity control of a reciprocating compressor, wherein the motion of a closing organ ( | 07-26-2012 |
20120207621 | Method and Equipment for Controlling Operating Temperature of Air Compressor - Method and equipment to control operating temperature of an air compressor. A compressor element compresses air and oil and supplies it to an oil separator. In the separator, the air and oil are separated. Oil is led to a circulating pipe and returned to the compressor element. When necessary, at least some of the oil flowing in the oil circulating pipe is supplied to cooling, which is used for controlling operating temperature of the compressor such that it is as low as possible, but nevertheless so high that no condensation point is reached. The amount of oil to be supplied to cooling is controlled by a thermostatic valve based on a change in dimension of a controlling element such that dimensions of the controlling element are changed by an external command. | 08-16-2012 |
20120207622 | CONTROL DEVICE AND CONTROL METHOD OF COMPRESSOR - A control device of a compressor includes a valve control unit configured to control an anti-surge valve that returns fluid in a discharge side of the compressor to a suction side of the compressor in accordance with a control parameter, a simulation unit configured to simulate operational status of the compressor in a plant in accordance with a plant model and the control parameter of the plant to which the compressor is installed, and a control parameter adjusting unit configured to adjust the control parameter in accordance with a result of the simulation. | 08-16-2012 |
20120207623 | Method for Controlling Delivery Quantity, and Reciprocating Compressor Having Delivery Quantity Control - The invention relates to a method for delivery quantity control of a reciprocating compressor, wherein the motion of a closing organ ( | 08-16-2012 |
20120213646 | PUMP, METHOD OF OPERATION, AND METHOD OF MANUFACTURE - The present disclosure provides a linear peristaltic pump that is capable of dispensing varied amounts of liquid from a tube. The linear peristaltic pump includes an adjustably attached squashing plate that is configured to move lengthwise in the housing of the pump. The amount of liquid dispensed from a tube disposed in the pump varies based on the location of the squash plate in the housing. | 08-23-2012 |
20120213647 | PISTON MEMBER, AN APPARATUS COMPRISING THE PISTON MEMBER, AND METHODS AND USE OF THE PISTON MEMBER AND THE APPARATUS - A piston member that includes a piston rod provided with a piston serves for reciprocating inside a cylinder barrel, the piston dividing the cylinder barrel chamber into a proximal cylinder barrel chamber having a proximal capped end opposite the piston and a distal cylinder barrel chamber having a distal cylinder barrel end opposite the piston. The piston member has at least one sealing ring or seat arranged inside the distal cylinder barrel chamber at the distal cylinder barrel end. Preferably three consecutive piston members are arranged to operate in a series in an apparatus for transporting coal powder to a gasifier. The movement of the pistons inside the cylinder barrels is controlled in relation to each other to transport apportioned batches of coal powder to a high pressure reactor. | 08-23-2012 |
20120219431 | Centrifugal Compressor Part Load Control Algorithm for Improved Performance - A compressor system having a centrifugal compressor, controller and an interface is disclosed. The compressor includes adjustable guide vanes and a variable geometry diffuser. The controller is in electrical communication with each of the guide vanes and diffuser so as to monitor and adjust positions thereof in accordance with a predetermined control algorithm. The control algorithm is implemented in accordance with a method of controlling the centrifugal compressor. The method adjusts the position of the diffuser based on the actual lift, guide vane position and predetermined relationships between diffuser position and reference lift. | 08-30-2012 |
20120219432 | PNEUMATIC COMPRESSION THERAPY SYSTEM AND METHODS OF USING SAME - Pneumatic compression devices and methods for using the same are disclosed. A pneumatic compression device may include a compression pump, a fill/exhaust valve, a transducer, a plurality of cell valves, and a controller. The compression pump may output a pressurized fluid via an output. The fill/exhaust valve may connect one or more cell valves to the compression pump when in an open state and to the atmosphere when in a closed state. The transducer may sense a pressure level. Each cell valve may correspond to a cell and may connect the fill/exhaust valve to the corresponding cell when in an open state. The controller may determine a state (either open or closed) for each of the fill/exhaust valve and the plurality of cell valves based on at least the pressure level sensed by the transducer. | 08-30-2012 |
20120219433 | Apparatus and Method for Facilitating a Hydrostatic Pressure Increase in a Fluid Flowing in a Pipe - There is described an apparatus ( | 08-30-2012 |
20120224979 | VOLUMETRIC FLUIDICS PUMP - A pump for moving a fluid through a fluidics system includes a surface and channel disposed along at least a portion of the surface. The pump also includes a driving mechanism having a rotatable shaft and a plurality of haptics operably coupled to the shaft. A closed portion is formed in the channel as the channel is compressed between the surface and at least one of the haptics, the closed portion having a thickness between the surface and the haptic. The pump additionally has a circular path and a shaft path. The surface has a radius of curvature in the vicinity of the closed portion that is greater than the sum of a radius of the circular path and the thickness of the closed portion. | 09-06-2012 |
20120224980 | CENTRIFUGAL WET GAS COMPRESSION OR EXPANSION WITH A SLUG SUPPRESSOR AND/OR ATOMIZER - This disclosure is to an apparatus and method for increasing the ability of centrifugal compressors or expanders to handle multiphase fluids with increased liquid content by passing the fluid through a slug suppressor and/or an atomizing device prior to compression or expansion. | 09-06-2012 |
20120230844 | MEDICAL FLUID DELIVERY SETS AND RELATED SYSTEMS AND METHODS - This disclosure relates to medical fluid delivery sets and related systems and methods. In some aspects of the invention, a medical fluid cassette includes a plunger slidably disposed within a recess of a base of the cassette such that a substantially liquid-tight seal is maintained between the plunger and the base as the plunger slides axially within the recess. The plunger and the base cooperate to at least partially define a fluid pump chamber. When the plunger is displaced in a first direction, fluid is forced out of the fluid pump chamber, and when the plunger is displaced in a second direction, fluid is drawn into the fluid pump chamber. | 09-13-2012 |
20120230845 | DRUG DELIVERY PUMP DRIVE USING A SHAPED MEMORY ALLOY WIRE - A pump drive and a method thereof to dispense a liquid drug from a container having a plunger piston are disclosed. The pump drive provides a unidirectional clutch provided about a rotational axis which supports centrally a wheel. The clutch has an inner race operably connected to the plunger piston, wherein the clutch is configured to rotate both the inner race about the axis in unison with rotation of the wheel in only a first direction to advance the plunger piston, and to let the wheel rotate relative to the inner race about the axis in a second direction opposite to the first direction without advancing the piston plunger. The drive in one embodiment includes at least one shape memory alloy wire which when excited rotates the wheel in the first rotational direction to advance the piston plunger and dispense the liquid drug from the container. | 09-13-2012 |
20120237364 | NANOMOLECULAR SOLID STATE ELECTRODYNAMIC THRUSTER - A solid-state device that is capable of imparting a directional momentum via thermoelectric microelements. High surface area is used to enhance the efficiency of heat transfer. The device can be operated in adiabatic mode in order to minimize thermal emissions. | 09-20-2012 |
20120244015 | SYSTEMS AND METHODS FOR IMPLEMENTING A FAN ARRAY WITH QUICK CONNECT AND MODULAR CONTROL - A fan array is provided having a frame including a plurality of frame members. The frame members are joined to define a plurality of chambers. Each of a plurality of fan units is configured to be positioned in one of the plurality of chambers. Each fan unit has a motor. A plurality of local motor controllers are joined to corresponding motors. The local motor controllers are configured to control an operation of the corresponding fan unit. A master controller is configured to communicate with the local motor controllers. The master controller is configured to provide the local motor controllers with target operating parameters for the corresponding fan units. | 09-27-2012 |
20120244016 | MILK PUMP DEVICE AND METHOD FOR DISPLACING AN AMOUNTOF MILK - A milk pump device, comprising a passage duct, a first one-way valve, a second one-way valve and a membrane pump. The first and second one-way valves are included in the passage duct and oriented in the same direction relative to each other. The membrane pump is positioned between the first one-way valve and the second one-way valve. The membrane pump forms a first milk meter for generating a first milk measurement with respect to a number of complete pumping strokes of the membrane pump. The milk pump device further comprises a second milk meter for carrying out a second milk measurement with respect to a residual pumping stroke. | 09-27-2012 |
20120251337 | Sliding valve downhole pump - Downhole pumps for producing hydrocarbons and/or other fluids from a well bore include a barrel having a plunger or plunger valve disposed therein and a stationary valve engaged with the barrel. The valve(s) include(s) an outer housing and an inner piston movable within the outer housing. Responsive to movement of the plunger or plunger valve relative to the barrel, the inner piston(s) is(are) movable between a first position that permits fluid flow through the valve and a second position that prevents fluid flow therethrough. | 10-04-2012 |
20120251338 | Vibratory Cavitation Pump Lishanski - A vibratory cavitation pump is provided that includes a working cylinder having an fluid inlet and a fluid outlet, a rod extending into the cylinder, a piston fixed to the rod, a plate fixed to the rod and spaced from the piston, an activator slidably mounted to the rod between the piston and the plate and an oscillating pumping mechanism operably connected to the rod to move the rod with respect to the working cylinder. The sliding activator creates cavitation in the fluid being pumped to increase the ease of pumping the fluid, such as high viscosity fluids. The pump can also include an external cylinder disposed around the working cylinder to impart rotational motion to the incoming fluid, thereby enhancing the cavitation created in the fluid by the pump, rendering the fluid easy to displace. | 10-04-2012 |
20120251339 | METHOD AND APPARATUS FOR OSCILLATING A FOIL IN A FLUID - The present invention relates to a method and apparatus for oscillating a foil in a fluid. The method according to the invention comprises the steps of —generating an oscillating heave motion of the foil in the fluid, the oscillation cycle of the heave motion consisting of two strokes of the foil in opposite direction; —generating an oscillating pitching motion of the foil in the fluid; characterized by —controlling the heave motion; and —adjusting the pitch during the oscillation cycle of the heave motion; such that —over 65% to 85% of the oscillation cycle of the heave motion, for each stroke of the foil, the absolute angle of attack is more than 60% of the maximum absolute angle of attack during the stroke. | 10-04-2012 |
20120251340 | METHOD FOR IMPROVING SENSORLESS FLOW RATE ESTIMATION ACCURACY OF PUMP DRIVEN WITH FREQUENCY CONVERTER - An exemplary method for determining a flow rate of a pump, includes measuring and storing the flow rate (Q | 10-04-2012 |
20120257985 | Torque Transmitting Rings for Sleeves in Electrical Submersible Pumps - An electrical submersible pump assembly has a motor module coupled to a centrifugal pump module by a seal section module. A shaft assembly extends through each of the modules for causing the motor module to rotate the pump module. At least one of the modules has a sleeve extending around the shaft that is of a harder material than the shaft. A torque transmitting ring is deformed between an inner diameter of the sleeve and an exterior portion of the shaft. The inner diameter of the sleeve is a continuous cylindrical surface free of any torque transmitting shoulders. Friction created by the torque transmitting ring transmits the entire rotational force from the shaft to the sleeve. | 10-11-2012 |
20120257986 | ROTARY CAM ACTUATED LINEAR PERISTALTIC PUMP - A rotary cam actuated linear peristaltic pump includes a plurality of cams which actuate a plurality of pistons. The cams apply a force to the piston by way of a lifter for providing mechanical advantage so that a smaller motor may be used to rotate the cam. Each piston of a plurality of pistons is sequentially raised to the extended position to squeeze a tube so as to flow fluid through the tube. | 10-11-2012 |
20120257987 | COVER STRUCTURE FOR CRYOPUMP, CRYOPUMP, START-UP METHOD OF CRYOPUMP, AND STORAGE METHOD OF CRYOPUMP - A storage method of a cryopump is provided, the storage method including: closing, with a pump cover, a pump inlet in the cryopump for receiving gases to be pumped by the cryopump; and reducing a pressure in the cryopump through a fluid channel for communicating an interior of the cryopump to an exterior of the cryopump. A start-up method of a cryopump is also provided, the start-up method including releasing a negative pressure in the cryopump by removing a closing member from a cover main body of a pump cover mounted to the cryopump. | 10-11-2012 |
20120269654 | OPTIMIZATION OF DEAD SPACE IN PISTONLESS COMPRESSORS - A method for operating a pistonless compressor, which serves the purpose of compressing a gaseous medium, in particular a cryogenic medium and in the cylinder of which a liquid column is moved up and down, is described. | 10-25-2012 |
20120269655 | Compact Peristaltic Medical Pump - A compact medical pump includes a linear peristaltic pumping mechanism driven by a motor located within a periphery of a belt of the pumping mechanism. The motor drives a gear set that drives a driving pulley which engages the belt having the rollers. A battery for the pump is positioned adjacent to the gear set. The pump includes a controller and user interface for operating the pumping mechanism as a function of pumping parameters input via the user interface. The controller may sense motor current and determine fluid path characteristics based on the sensed current. | 10-25-2012 |
20120275928 | Hydraulic Piston Pump with Reduced Restriction Barrel Passage - The present disclosure sets forth an axial piston pump with greatly improved throughput. The axial piston pump provides cylinders, antechambers, and fluid flow apertures which are uniquely shaped and dimensioned so as to increase the overall flowability and expulsion rate of the piston pump. By providing curvilinear transition zones and fluid flow apertures, the cylinders can be completely filled and pressurized even at the extremely high pressures and RPMs required by modern machines. Such machines may include front-end loaders, excavators, pipe layers, graders, and the like wherein such pumps can be used to power hydraulic cylinders moving the implements, work arms and other tools associat | 11-01-2012 |
20120275929 | FERROFLUID CONTROL AND SAMPLE COLLECTION FOR MICROFLUIDIC APPLICATION - A fluid conveyance system includes a flow passage and a cavity adjacent a side of the flow passage. A wall of the passage includes a flexible section that separates the cavity from the flow passage. The cavity contains a ferrofluidic material. The system further includes at least one magnetic field source positioned adjacent the flow channel. The magnetic field source is operable to move the ferrofluidic material in the cavity to exert a pressure on the flexible section and displace the flexible section into the flow passage to alter the flow of material through the passage. A method of collecting components from a sample volume includes the steps of distributing magnetic particles into the sample volume, capturing the components from the sample volume, and applying a magnetic field to the sample volume to control directional flow of the sample volume. | 11-01-2012 |
20120275930 | ELECTRIC MOTOR ASSIST FOR TRANSMISSION ELECTRIC OIL PUMP - A method for assisting a transmission oil pump in a hybrid electric powertrain to generate transmission oil pressure rapidly during vehicle start. An electric motor is initially utilized to provide momentary torque to rotate an oil pump and rapidly generate transmission oil pressure. After initial assistance is provided by the electric motor, an oil pump electric motor powers the oil pump and maintains oil pressure within the hybrid powertrain. | 11-01-2012 |
20120275931 | System and Method for Providing a Continuous Flow of Catalyst Into a Polyolefin Reactor - Both a catalyst feed system and a method are provided for providing a flow, of a mud-like catalyst slurry into a polyolefin reactor. The system includes a pressurized reservoir of the catalyst having an outlet, and a progressive cavity pump including a stator and a rotor. The pump stator has an inlet connected to the reservoir outlet, and an outlet leading to the polyolefin reactor. In operation, the reservoir is first pressurized to a level a little higher than the pressure of the reactor. The outlet of the reservoir is opened and the progressive cavity pump is actuated. The pressure drop generated across the catalyst slurry contained in the reservoir by the pump causes the slurry diluent to flow between the interstices of the particles of catalyst. The thick, mud-like catalyst slurry is quickly transformed into a much less viscous, syrup-like slurry that flows from the reservoir outlet to the inlet of the pump stator. The progressive cavity pump then continuously conveys the catalyst through the stator outlet and into the reactor. | 11-01-2012 |
20120282114 | AIR PUMP - An air pump is provided that is configured to move and compress air into an air storage vessel at high pressure. The air pump is operable to move large volumes of air against low resistance for rapid filling of an air storage vessel. | 11-08-2012 |
20120282115 | METHOD, APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM FOR CONTROLLING TORQUE LOAD OF MULTIPLE VARIABLE DISPLACEMENT HYDRAULIC PUMPS - Methods, apparatuses, and computer program products for controlling the torque load of multiple variable displacement hydraulic pumps are described herein. A pump displacement limit for each variable displacement hydraulic pump is determined using a nonlinear control law to limit the total pump torque load of the variable displacement hydraulic pumps on the engine. The value of the actual pump displacement of each variable displacement hydraulic pump is controlled based upon the respective determined pump displacement limit. | 11-08-2012 |
20120282116 | SUBSEA PUMPING SYSTEM - The invention concerns a subsea pumping system that comprises an reciprocating pump such as a membrane pump or a hose pump. The motive fluid for the pump is obtained from one of the well fluids which is pressurized in a separate stage. | 11-08-2012 |
20120288379 | System and Method for a Variable Home Position Dispense System - Embodiments of the invention provide a system, method and computer program product for reducing the hold-up volume of a pump. More particularly, embodiments of the invention can determine, prior to dispensing a fluid, a position for a diaphragm in a chamber to reduce a hold-up volume at a dispense pump and/or a feed pump. This variable home position of the diaphragm can be determined based on a set of factors affecting a dispense operation. Example factors may include a dispense volume and an error volume. The home position for the diaphragm can be selected such that the volume of the chamber at the dispense pump and/or feed pump contains sufficient fluid to perform the various steps of a dispense cycle while minimizing the hold-up volume. Additionally, the home position of the diaphragm can be selected to optimize the effective range of positive displacement. | 11-15-2012 |
20120294731 | Pump System and Method of Use - A multi-pump assembly and method of use including a housing and at least two pumps contained within the housing is described, wherein each pump has a performance level. In an embodiment, the performance level of each pump is the same. In another embodiment, the performance level of each pump is different. The assembly may also include a common electrical inlet, a common fuel inlet connection, a common fuel outlet connection, a pressure regulator, a final filter, an outlet check valve connected to each pump, a plurality of over pressure relief valves connected to each pump and an over pressure relief passage formed around the pumps in the housing, an electronic controller capable of operating each pump independently, a fuel filter and a pressure regulator in the housing to form a returnless fuel supply, and/or a final filter. The assembly may be used in a multiple carburetor or fuel injection applications. | 11-22-2012 |
20120294732 | Pump System and Method of Use - A pump assembly and method of use is described, wherein the pump assembly includes a housing and a pump contained in the housing, wherein the pump has a performance level. The assembly may also include an electrical inlet, a fuel inlet connection, a fuel outlet connection, a pressure regulator, a final filter, an outlet check valve connected to each pump, at least one over pressure relief valve connected to the pump and an over pressure relief passage formed around the pump in the housing, an electronic controller capable of controlling the pump, a fuel filter and a pressure regulator in the housing to form a returnless fuel supply, and/or a final filter. The assembly may be used in a multiple carburetor or fuel injector applications. | 11-22-2012 |
20120301325 | PUMP SYSTEM HAVING OPEN-LOOP TORQUE CONTROL - A pump system is disclosed. The pump system may have a pump with a displacement that is variable, and an actuator movable to adjust the displacement of the pump. The pump system may also have an electro-hydraulic valve fluidly connected to the actuator and configured to control movement of the actuator, and a variable resistor mechanically connected to at least one of the actuator and the pump. The variable resistor may be adjustable by movement of the at least one of the actuator and the pump to vary a current passing through the electro-hydraulic valve. | 11-29-2012 |
20120301326 | PUMP HAVING PORT PLATE PRESSURE CONTROL - A pump is disclosed. The pump may have a housing, a body rotatably disposed within the housing and at least partially defining a plurality of barrels, a plurality of plungers associated with the plurality of barrels, and a swashplate tiltable by a swivel torque to vary a displacement of the plurality of plungers relative to the plurality of barrels. The pump may also have a port plate with an inlet port, a discharge port, and a protrusion. The port plate may be configured to engage an end of the rotatable body. The pump may further have at least one piston disposed within the housing and configured to selectively engage the protrusion of the port plate to rotate the port plate and adjust the swivel torque. | 11-29-2012 |
20120301327 | METHOD FOR VARYING THE DURATION OF A SUPPLY STROKE OF A PUMP ELEMENT, AND A PUMP DEVICE - A pump device is operated according to a method for varying the duration of a supply stroke of a pump element, the supply stroke of which is actuated by a rotatably driven pump shaft (P) over a predetermined rotational position range of the pump shaft. In the method, the pump shaft (P) is rotatably driven by a drive shaft (A) and the angular speed of the pump shaft, at a constant angular speed of the drive shaft, is increased and decreased at least once during one revolution of the pump shaft. | 11-29-2012 |
20120315152 | Accessory Flow Recovery System and Method for Thermal Efficient Pump and Control System - An accessory flow recovery system includes an inlet that receives a first fluid flow, and a pump with a pump inlet and outlet. The pump inlet receives the first fluid flow from the inlet and discharges a second fluid flow from the outlet. The accessory flow recovery system has an actuation unit for supplying a third fluid flow to accessory components, a metering system to regulate the flow rate of the second fluid flow based on a flow demand, and an inlet pressurizing valve coupled between the outlet and the metering system. The inlet pressurizing valve regulates the second fluid flow between the pump and the metering unit. The accessory flow recovery system further includes a return switch valve to direct the third fluid flow to the metering system when the recovery system is operating in one mode, and to the inlet when the system is operating in another mode. | 12-13-2012 |
20120315153 | MACHINE INCLUDING COMPRESSOR CONTROLLING APPARATUS AND METHOD - A machine includes at least two compressors that is controlled by a compressor controlling apparatus. By using an inverter for the at least two compressors, the use of elements is minimized and the compressor capacity may be increased, and the operation efficiency of the system may be enhanced. As an example, a plurality of operation modes may be used according to a load or cooling capacity of the two compressors. The two compressors are separately or simultaneously operated by using the inverter, thus simplifying the configuration of the system, and reducing cost. | 12-13-2012 |
20120315154 | Drip Pump System and Method - A system and method for pumping an underground drip includes a pump barrel housing with a plunger and an elongated stroke actuator cylinder sealed to the pump barrel that vertically reciprocates the plunger. The pump barrel and plunger are preferably vented to avoid vacuum lock during pumping. The plunger pumps the fluid located in the drip upwardly to a low pressure tank or a pressurized surface vessel. A ball valve may be screwed onto the siphon line to allow for insertion and removal of the pump barrel and seals the siphon line if the pump is removed. A stuffing box seals the pump barrel to the upper end of the siphon line to prevent air from entering the system. The stuffing box also allows the pump depth to be easily adjustable by sliding the pump in until the pump tags bottom and then tightening at any point needed. | 12-13-2012 |
20130004336 | COMPRESSOR CONTROL METHOD - A compressor control method for prolonging operating time of a vehicle air conditioning compressor includes monitoring an operating temperature of an insulated gate bipolar transistor in the compressor, comparing the operating temperature to at least one predetermined threshold temperature, continuing operation of the compressor if the operating temperature is below the at least one predetermined threshold temperature and implementing at least one mitigating step to prevent premature shutdown of the compressor if the operating temperature is above the at least one predetermined threshold temperature. | 01-03-2013 |
20130004337 | SYSTEM AND METHOD FOR DRIVING A PUMP - A system for driving a pump includes a gas turbine engine having an output shaft, and a torque converter including an input shaft coupled to the output shaft of the gas turbine engine and an output shaft configured to be coupled to an input shaft of a pump. The system further includes a controller coupled to the torque converter, wherein the controller is configured to receive a signal indicative of a pressure at at least one of a pump inlet and a pump outlet, and control a speed of the output shaft of the torque converter based on the signal indicative of pressure. | 01-03-2013 |
20130004338 | MICROPUMP AND DRIVING METHOD THEREOF - A micropump includes: a fluid suction tube for suctioning fluid; a pumping tube connected to the fluid suction tube and providing a suction force and a discharge force to surroundings while repeatedly being expanded and contracted by an external signal; a deform tube connected to the pumping tube and having an aperture that is deformed by the suction force and the discharge force of the pumping tube; and a fluid discharge tube connected to the deform tube and discharging fluid. | 01-03-2013 |
20130004339 | Pressure Control Device for a Vehicle and Method for Controlling Pressure - The invention relates to a pressure control device ( | 01-03-2013 |
20130004340 | SYSTEM AND METHOD FOR MONITORING OPERATION OF A PUMP - Systems and methods for monitoring operation of a pump, including verifying operation or actions of a pump, are disclosed. A baseline profile for one or more parameters of a pump may be established. An operating profile may then be created by recording one or more values for the same set of parameters during subsequent operation of the pump. The values of the baseline profile and the operating profile may then be compared at one or more points or sets of points. If the operating profile differs from the baseline profile by more than a certain tolerance an alarm may be sent or another action taken, for example the pumping system may shut down, etc. | 01-03-2013 |
20130004341 | CONCRETE PUMPING STRUCTURE AND CONTROL METHOD THEREOF - A concrete pumping structure and a control method thereof are disclosed. The concrete pumping structure includes a first pumping cylinder structure and a second pumping cylinder structure. Each pumping cylinder structure includes a delivery cylinder ( | 01-03-2013 |
20130011275 | DISCO PUMP - An inflatable air pump having an inflatable and compressible frame that includes an upper inflatable frame portion, a lower inflatable frame and a plurality of inflatable frame connecting portions inflatable through an air inlet device. An inner bag includes a top region connected to the top inflatable frame portion and a bottom region connected to the bottom inflatable frame portion and configured to hold air. The top region has an opening that allows air to enter the inner bag. The inner bag has an air outlet device configured to attach to an inflatable device. A user places their palm at least partially over the opening and presses downward, pressing the top surface towards the bottom surface and partially compressing the plurality of inflatable frame connecting portions, thereby forcing air in the inner bag to exit the inner bag through the air outlet device, thereby inflating the inflatable device. | 01-10-2013 |
20130011276 | TURBOCHARGER - A turbocharger shaft interconnects the compressor impeller and the turbine wheel and a bearing housing between the compressor and turbine houses a bearing assembly supporting the turbocharger shaft rotation. A shaft bore defined in at least one of the compressor, turbine or bearing housings receiving the shaft. A sealing arrangement for restricting leakage of lubricant along the shaft bore from the bearing housing to the compressor or turbine housing. The sealing arrangement comprises at least one sealing ring around the shaft in the shaft bore and a gas passage communicating with the shaft bore. A gas distribution circuit includes a valve movable between a first position in which gas passage is in communication with a gas supply path for supplying gas to the shaft bore and a second position in which the gas passage is in communication with a vent path for venting gas from the shaft bore. | 01-10-2013 |
20130017099 | MICROPUMPAANM Genoud; DominiqueAACI KaltbrunnAACO CHAAGP Genoud; Dominique Kaltbrunn CHAANM Christen; PeterAACI ObergerlafingenAACO CHAAGP Christen; Peter Obergerlafingen CHAANM Robin; FranckAACI LenzburgAACO CHAAGP Robin; Franck Lenzburg CHAANM Thiemer; HelmutAACI SachselnAACO CHAAGP Thiemer; Helmut Sachseln CH - A pump comprising a housing comprising a rotor chamber, inlet and outlet channels opening into the rotor chamber, and inlet and outlet seals mounted on a surface of the chamber, and a rotor rotatably and axially slidably received in the chamber and comprising a first axial extension comprising a liquid supply channel and a second axial extension comprising a liquid supply channel, the first and second axial extensions having different diameters. The inlet and outlet seals engage a surface of the rotor, whereby the liquid supply channel of each axial extension in conjunction with a corresponding seal forms a valve that opens and closes as a function of the angular and axial displacement of the rotor. At least one of the inlet and outlet channels opens transversely into the rotor chamber and at least one of the inlet and outlet seals forms a closed circuit circumscribing said at least one of the inlet and outlet channels. | 01-17-2013 |
20130022476 | Adaptive Pump Control for Positive Displacement Pump Failure Modes - Detecting a failure mode of a fluid flow controller configured to control fluid flow between first and second chambers of a downhole positive displacement pump and a flow line, wherein the positive displacement pump comprises a piston moving in an axial reciprocating motion, and subsequently adjusting operation of the downhole positive displacement pump based on the detected failure mode such that the downhole positive displacement pump piston operates differently in different axial directions. | 01-24-2013 |
20130022477 | TURBINES WITH INTEGRATED COMPRESSORS AND POWER GENERATORS - A turbine system comprises a rotor operatively coupled to a plurality of blades, at least one blade of the plurality of blades having one or more blown passages for providing a pressurized fluid to a pressure side and/or suction side of the at least one blade. The rotor is selectively or simultaneously coupled to a compressor and a power generator. In some situations, the rotor is selectively coupled to one of the power generator and the compressor with the aid of a clutch. | 01-24-2013 |
20130028752 | PRIMING OF GEAR PUMP IN ALTERNATIVE ATTITUDES - A gear pump has a pair of meshed gears for rotating within a gear pump chamber, and a motor driving at least one of the gears. A discharge line passes fluid downstream from the gear pump chamber, and a suction line delivers fluid into the gear pump chamber. A bypass valve communicates with the discharge line. A shutoff valve communicates with the discharge line. The bypass valve opens at a lower pressure than the shutoff valve. A bypass line communicating the discharge line to the suction line when the bypass valve is open. The gear pump is configured to compress air. In addition, a gear pump arrangement that can be mounted in either of two attitudes is described, as is a method of operating a gear pump. | 01-31-2013 |
20130028753 | HIGH PRESSURE SOLENOID PUMP - A solenoid pump, including: an inlet port, an outlet port, and a first through-bore connecting the inlet and outlet ports; a plunger disposed within the first through-bore and including a second through-bore; a spring arranged to urge the plunger toward the outlet port; a solenoid coil disposed about a portion of the plunger and arranged to displace the plunger toward the inlet port in response to coil power applied to the solenoid coil; and a control unit for: accepting an input voltage; generating the coil power during an interval equal to a first time period; supplying the coil power to the solenoid coil; and selecting a duration of the first time period such that the duration of the first time period varies according to the input voltage. | 01-31-2013 |
20130028754 | PERISTALTIC SYSTEM, FLUID DELIVERY DEVICE, PIPETTING DEVICE, SLEEVE AND METHOD FOR OPERATING THE PERISTALTIC SYSTEM - The invention relates to a peristaltic system ( | 01-31-2013 |
20130028755 | Booster Pump System for Pool Applications - Assemblies and methods for a booster pump used in a pool cleaning/filtration system are provided. An exemplary booster pump assembly is adapted to increase the water pressure of water flow for use in a pool cleaning system. The booster pump includes a front housing defining a substantially circular geometry having an inlet positioned substantially in the center of the front housing and extending axially outward with respect to the front housing. The booster pump also includes an outlet extending substantially laterally with respect to the front housing. The front housing and the rear housing form an enclosure for positioning of an impeller. The inlet and the outlet are each coupled to conduits having substantially similar flow diameters, and the water passing through the outlet at an increased water pressure is sufficient to make operable a positive pressure pool cleaner. Advantageous support structures and drain plug configurations are also provided. | 01-31-2013 |
20130039780 | Reciprocating Rod Pump for Sandy Fluids - A downhole pump has a barrel and a plunger movably disposed therein. The gap between the barrel and plunger has first and second seals. The barrel and plunger each have a one-way valve restricting fluid passage out of it. A filter or screen is disposed on the plunger between the first and second seals. In a downstroke, fluid and particulate in the barrel transfers into the plunger. In an upstroke, fluid and particulate in the plunger lifts uphole. At the same time, a volume in the barrel fills with fluid and particulate. During either stroke, the first seal prevents particulate uphole of the plunger from passing into the gap. The filter or screen, however, prevents at least some particulate (i.e., most or larger particulate) inside the plunger from passing out of the plunger with fluid flowing into the gap between the first and second seals. | 02-14-2013 |
20130045115 | TWO-STAGE LINEAR PERISTALTIC PUMP MECHANISM - This invention discloses a peristaltic pump composed of a two-stage linear peristaltic pump mechanism, which engages in different functions, charging and pumping a fluid to a patient. This peristaltic pump is capable of restoring the crushed tubing, caused by repeated compression or crushing of the tubing by peristaltic fingers, to its original circular cross sectional area so that it can provide a precise flow rate. The two-stage linear peristaltic pump mechanism substantially improves the consistency of a flow rate over time and extends the usefulness of peristaltic pumps to applications where they could not otherwise be used. | 02-21-2013 |
20130045116 | Beamless Mechanic-reversing Long Stroke Pumping Unit - A beamless mechanic-reversing long stroke pumping unit is provided for petroleum production in diverse types of oil fields. Its mechanic-reversing system consists of differentials, brakes, etc. With two differentials assembled together, taper gears inside them perform revolution and rotation, enabling the pumping unit to achieve direction change and speed change mechanically. The stroke length of the pumping unit can reach 8 meters or longer, and the adjustment process is more convenient than most, by merely tuning the position of the proximity switches. Abrasion of the chains typically caused due to resetting of a motor frequently during operation, is eliminated in this pumping unit. The pumping unit has more reliable operation performance, more convenient maintenance, lower costs, better energy saving effects, and can be applied in land oil fields, offshore oil fields, oil wells with low permeability, etc. | 02-21-2013 |
20130045117 | ENHANCED EFFICIENCY COUNTER-ROTATING MOTOR DRIVEN PUMPING APPARATUS, SYSTEM, AND METHOD OF USE - An enhanced efficiency pumping apparatus, and general method of use, includes a counter-rotating motor with two oppositely rotating drive shafts with a first pump secured to the one of the drive shafts and a second pump secured to the other, oppositely rotating drive shaft. | 02-21-2013 |
20130045118 | Smart Blow-Down System for Variable Frequency Drive Compressor Units - A method and apparatus for blowing down a compressed air system when temperature is at or below a predefined temperature threshold is provided. Temperature sensors in the compressed air system monitor temperature and a control processor determines when the temperature is at or below the predefined temperature threshold. When it is determined temperature is at or below the predefined temperature threshold, the control processor operates a solenoid blow-down valve that depressurizes the compressed air system. | 02-21-2013 |
20130052040 | TWO-AXIS ADJUSTABLE MUD PIPE JOINT - Disclosed is a pipe having a cylindrical inner wall, a rig end, the rig end having an inner wall having an inside diameter and a remote end. The remote end further comprises a first hemispheric extension that extends from the remote end to at least an outer diameter. A second hemispheric extension connects a surface at an outer cylindrical surface to a pipe exterior wall, wherein the first hemispheric extension and second hemispheric extension form a partial sphere through which, a cavity defined by the inner wall extends. | 02-28-2013 |
20130052043 | ROTORS - A rotor is provided. The rotor comprises external blades for use in causing rotation of the rotor, and internal blades for use in propelling a fluid through the rotor during rotation of the rotor. | 02-28-2013 |
20130052044 | FLUID FEEDING PUMP, MEDICAL APPARATUS, AND AIR BUBBLE DETECTION METHOD FOR FLUID FEEDING PUMP - A fluid feeding pump which varies a volume of a pump chamber and thus feeds a fluid out of the pump chamber, includes: a piezoelectric element which accumulates electric charges inside when a voltage is applied, and which deforms according to an amount of accumulated electric charges and thus increases or decreases the volume of the pump chamber; a drive unit which applies a drive signal with a waveform increasing to a predetermined maximum voltage and then decreasing, and thus drives the piezoelectric element; and an air bubble determining unit which detects a current flowing through the piezoelectric element within a predetermined period after the drive signal is applied to the piezoelectric element, and thus determines whether there are air bubbles in the pump chamber or not. | 02-28-2013 |
20130058797 | SYSTEM AND METHOD FOR ATTENUATION OF ESP MOTOR VIBRATION - Vibration of a rotor positioned within a stator of an electric motor of an electric submersible pump assembly is attenuated in a first embodiment by adjusting the length of the rotor to position rotor bearings supporting the rotor within the stator at locations of low amplitude vibration. In a second embodiment, hydraulic pressure is applied to a fluid chamber supporting a thrust bearing that supports the rotor. When hydraulic fluid pressure is applied, the thrust bearing and the rotor move axially. Thus, moving the rotor bearings away from areas of high amplitude vibration of the rotor. In a third embodiment, a sliding mass affixed to the motor is moved in response to vibration of the motor. Movement of the sliding mass changes the vibration profile of the motor. | 03-07-2013 |
20130058798 | HYDRAULIC OIL WELL PUMPING APPARATUS - A pumping arrangement employs a compensating type hydraulic pump, a directional valving arrangement and a proportioning valving arrangement. When the directional valve is energized, oil is directed to the rod end of the hydraulic cylinder. The rod or piston part of the hydraulic cylinder will then elevate until a first limit switch is actuated which then will de-energize the directional valve and send a current signal to the proportional valve. This current signal to the proportional valve forces it to open to a point at which the cylinder rod would extend at the desired velocity until it reaches a second limit switch. The current signal to the proportional valve is then decreased, creating a choking arrangement that forces the cylinder rod to decelerate. Upon reaching the third limit switch, the signal is removed from the proportional valve so that it closes. | 03-07-2013 |
20130058799 | COMPRESSOR SYSTEM INCLUDING A FLOW AND TEMPERATURE CONTROL DEVICE - A thermal control valve for use in a lubricant flooded compressor system including a controller that generates a control signal includes a valve body including a hot coolant inlet, a cooled coolant inlet, a mixed coolant outlet, an actuator space, and a cylinder bore. A sleeve is positioned within the cylinder bore and is movable between a first position, a second position, and a third position, and an electrical actuator is at least partially disposed within the actuator space and is operable in response to the control signal to move the sleeve between the first position, the second position, and the third position. | 03-07-2013 |
20130058800 | Parallel Dynamic Compressor Arrangement and Methods Related Thereto - This disclosure is directed to a novel arrangement for equipment used to compress fluids. A single prime mover is connected to a plurality of compressors. A supply conduit with parallel branch conduits directs fluid to be compressed to at least two compressors and parallel output conduits from each compressor are connected to a common output conduit, which directs compressed fluids to at least one additional compressor. | 03-07-2013 |
20130064687 | SHUTTLING BY-PASS COMPRESSOR APPARATUS - A compressor apparatus having a first compressor head for generating a first gas flow and a second compressor head for generating a second gas flow with a shuttling by-pass component in fluid flow communication between the first and second compressor heads for allowing the output of a portion of either the first gas flow or the second gas flow to be diverted to the other compressor head. The shuttling by-pass component allows a portion of the first gas flow to be diverted from the first compressor head to the second compressor head during an exhaust stroke of the first compressor head, while also allowing a portion of the second gas flow to be diverted from the second compressor head to the first compressor head during an exhaust stroke of the second compressor head in alternating sequence such that a more steady output of gas flow may be attained. | 03-14-2013 |
20130064688 | Integrated Direct Drive Starter/Generator for Turbines - A starter/generator machine for a turbine with a turbine enclosure, an air duct, and a plurality of fan blades is provided. The starter/generator machine includes a plurality of stator elements spaced at intervals in a ring shape adjacent to the air duct and a plurality of rotor elements mounted on the fan blades. The stator elements and the rotor elements are mounted to interact magnetically to exert a force sufficient to move the rotor elements. The stator elements are shaped to minimize air flow interference and are formed with a core, at least one pole, and multiple windings. The spacing between the stator elements and the rotor elements forms an air gap on the order of 5-10 mm, and the number of stator elements is different from the number of rotor elements. | 03-14-2013 |
20130064689 | Method Of Reducing Air Compressor Noise - A compressor assembly having a tank seal which seals a tank gap between a portion of a housing of the compressor assembly and a portion of a compressed gas tank and a method for controlling the sound level of a compressor assembly by configuring a tank seal to seal a gap between the housing of a compressor assembly and a compressed gas tank. The sound level of the compressor assembly can be controlled by sealing a tank gap between at least a portion of a compressor assembly housing and at least a portion of a compressed gas tank. | 03-14-2013 |
20130071259 | Boundary Layer Disk Turbine Systems for Controlling Pneumatic Devices - Provided are various devices and processes that harness the inherent kinetic energy of a flowing pressurized fluid to drive a compressor to compress a fluid without any need for electrical or chemical energy. The flowing drive fluid flows over a boundary layer disk turbine, or Tesla turbine, which is mechanically coupled to a compressor that compresses a fluid. The flowing fluid may be a natural gas from a hydrocarbon recovery operation. The compressed fluid may be air that is used to power a pneumatic device in an industrial process. Harnessing the kinetic energy of the flowing fluid increases economic efficiency of the process, while also avoiding unwanted emissions adverse to the environment and public health. | 03-21-2013 |
20130078114 | PHASE SHIFT CONTROLLER FOR A RECIPROCATING PUMP SYSTEM - A pump system using multiple reciprocating positive displacement pumps which phase shift is controlled by a phase shift controller. The phase shift controller uses a virtual master pump inside the phase shift controller which is used as a phase reference against which the phase shifts of the individual pumps is calculated. The phase shift controller adjusts the speed reference set-point for the variable speed drives of the individual pumps such that a desired phase shift is obtained and maintained. The operation of multiple reciprocating pumps using phase shift control can significantly reduce the pressure pulsation levels in the pump system. The use of a virtual master pump eliminates master slave scheduling and increases system reliability and availability as the operating of the phase control is not depending on the reliability of a real master pump. | 03-28-2013 |
20130078115 | PROCESS AND APPARATUS FOR DRYING AND COMPRESSING A CO2-RICH STREAM - The present invention relates to a process and to a unit for drying and compressing a CO2-rich stream. The CO2-rich fluid is compressed in a compressor; upstream of the compression step, an antifreeze is mixed with the CO2-rich fluid containing water; the CO2-rich fluid containing the antifreeze is cooled, water is separated from the cooled fluid and the water-depleted cooled fluid is compressed in the compressor; and the CO2-rich fluid containing water is sent to a scrubbing column fed with a water/antifreeze mixture, where it cools and is separated from the water. | 03-28-2013 |
20130084194 | JET PUMP DATA TOOL SYSTEM - A jet pump, a jet pump data tool system, and method of use thereof. The jet pump includes a body having an intake, a first aperture, and a second aperture between the first aperture and the intake. A carrier is seated in the body and receivable in the first aperture. The carrier includes a venturi for drawing wellbore fluid from the intake into the venturi. A housing for a data tool extends from the carrier. The housing is in fluid communication with the intake for allowing wellbore fluid to be exposed to the data tool. The carrier is seatable in the body by flowing power fluid and the carrier into the first aperture. The carrier is retrievable from the body by flowing power fluid into the second aperture. | 04-04-2013 |
20130089439 | DELIVERY DEVICE HAVING A CONNECTING ROD, AND A METHOD FOR CONTROLLING A DELIVERY DEVICE HAVING A CONNECTING ROD AND AT LEAST ONE BALANCE WEIGHT - A delivery device having a connecting rod, and a method for controlling a delivery device having a connecting rod and at least one balance weight,
| 04-11-2013 |
20130094974 | Compressor-Expander Set Critical Speed Avoidance - A control method and apparatus for critical rotational speed avoidance in a compressor-expander set in a gas refrigeration system. By varying an opening of an antisurge or recycle valve, a shaft power used by the compressor in the compressor-expander set may be varied, thereby varying the rotational speed of the compressor-expander set to move it away from its critical speed zone. Additionally, a feedforward signal may be provided by a compressor-expander set control system to cause an antisurge valve for a recycle compressor to open upon a trip or shutdown of one compressor-expander set. | 04-18-2013 |
20130101440 | AIR COMPRESSOR POWERED BY DIFFERENTIAL GAS PRESSURE - A gas-driven air compressor system and a method for using it. No electricity, lubrication or cooling water is required. A high pressure gas used to drive the compressor may be recovered at a pressure high enough to be retain its economic value. In one preferred embodiment, the air compressor includes a gas-driven drive cylinder and an air-driven boost cylinder, interconnected by reciprocating drive and boost pistons. The drive piston supplies force to power the boost piston, which pulls in atmospheric air and discharges it at a higher pressure for use by pneumatically-operated controls and equipment. A four-way valve operating on differential gas pressure may be used to automatically actuate the reciprocating piston. Using the present invention, fugitive gas emissions, such as normally occur when using a separator to remove oil and water from a wellhead gas stream, may be avoided. | 04-25-2013 |
20130101441 | PERISTALTIC PUMPING APPARATUS AND METHOD - The present disclosure relates to a rotor assembly for a peristaltic pump. The pump includes a first rotor having a plurality of rollers and a second rotor, coupled to the first rotor, having a plurality of rollers. The rollers of the first and second rotors are located at an angle of about 45° relative to each other. In an embodiment, the first rotor and the second rotor are circular. In another embodiment, the rollers of the first rotor are equally spaced or located at an angle, about 90°, relative to each other. In yet another embodiment, the rollers of the second rotor are equally spaced or located at an angle, about 90°, relative to each other. A peristaltic pump and a method of supplying fluid to a surgical area are also disclosed. | 04-25-2013 |
20130101442 | AIR SUCTION PUMP AND METHOD FOR VACUUM SEALING VINYL BAG USING SAME - Provided are an air suction pump and a method of vacuum sealing vinyl bag using same. The air suction pump includes a base member, a housing mounted on a top of the base member to be movable in a vertical direction, a piston member disposed inside the housing to be movable in the vertical direction, a first heating wire mounted to be exposed to the outside on one or more of the top of the base member, the bottom of the housing, and a bottom of the piston member, and a power supply part supplying power to the first heating wire. A top of the housing is opened and a bottom of the housing is opened. A top of the piston member is exposed to the outside through the top of the housing. The air suction pump discharges the internal air of a vinyl bag, applies vacuum into the vinyl bag, and immediately seals the vinyl bag, thus enabling food of the vinyl bag to be easily kept in a vacuum state for a long time. | 04-25-2013 |
20130108476 | PUMP FREEZE PROTECTION | 05-02-2013 |
20130108477 | PUMP ELEMENT FOR A TUBE PUMP | 05-02-2013 |
20130108478 | REMOTE PUMPING STATION MONITORING METHOD | 05-02-2013 |
20130108479 | ENTRAPMENT DETECTION FOR VARIABLE SPEED PUMP SYSTEM USING LOAD COEFFICIENT | 05-02-2013 |
20130108480 | COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE | 05-02-2013 |
20130115109 | COMPRESSOR DISCHARGE TEMPERATURE MONITOR AND ALARM - A compressor protection method and system capable of continuously establishing compressor discharge temperature set points based on actual in-service conditions and detecting damaged compressor valves for a given cylinder at each stage of compression. The method and system utilize sensors configured to monitor process property parameters (e.g. temperature and pressure) at the inlet section and outlet section of a compressor stage. The sensors generate monitored signals corresponding to the process property parameters. The method and system utilize a controller configured to receive and process these monitored signals. The controller executes a control logic that uses the monitored signals to either estimate or calculate compressor valve pressure losses for determining internal cylinder pressures, which are used to calculate compressor discharge temperature set points. The control logic compares the monitored temperature to the temperature set points and may generate a warning or normal operation signals based on results of the comparison. | 05-09-2013 |
20130115110 | PROCESSING CHAMBER INTEGRATED PRESSURE CONTROL - An apparatus and method for controlling pumping characteristics within a semiconductor processing chamber are provided. The apparatus includes levitation of a hollow shaft turbo pump or pump elements, and is configured to control pumping by including adjustments for orientation, position, geometries, and other aspects of the turbo pump. The method includes adjusting design and operational parameters, to control pumping characteristics within the processing chamber. | 05-09-2013 |
20130121846 | ADVANCED TOPOLOGIES FOR OFFSHORE POWER SYSTEMS - A variable speed compression system that is driven by a variable frequency high speed motor that receives power from a high frequency generation unit that is driven by a high speed gas turbine is provided. The speed of the turbine may be varied to control the output frequency of the high frequency generation unit, thus controlling the output of the compression system by controlling the speed of the turbine driving the generation unit. | 05-16-2013 |
20130121847 | Thermodynamic Cycle and Heat Engine - A method and arrangement are for heat exchanging in and work exchanging with a working fluid in a heat engine, or a heat pump if the method and its sub-processes are substantially reversed. A thermodynamic cycle for the working fluid is approximately described through the polytropic relation PV | 05-16-2013 |
20130121848 | Vibratory Cavitation Pump Lishanski - A vibratory cavitation pump is provided that includes a working cylinder having an fluid inlet and a fluid outlet, a rod extending into the cylinder, a piston fixed to the rod, a plate fixed to the rod and spaced from the piston, an activator slidably mounted to the rod between the piston and the plate and an oscillating pumping mechanism operably connected to the rod to move the rod with respect to the working cylinder. The sliding activator creates cavitation in the fluid being pumped to increase the ease of pumping the fluid, such as high viscosity fluids. The pump can also include an external cylinder disposed around the working cylinder to impart rotational motion to the incoming fluid, thereby enhancing the cavitation created in the fluid by the pump, rendering the fluid easy to displace. | 05-16-2013 |
20130121849 | SCAVENGE PUMP OIL LEVEL CONTROL SYSTEM AND METHOD - A hybrid vehicle includes a hybrid module, a transmission and a torque converter. The lubrication system associated with the torque converter includes an oil sump within the torque converter housing which is intended to be managed as a “dry” sump oil lubrication system. There is an oil pump in communication with the sump in order to manage the sump oil level. By monitoring an operational parameter of the oil pump motor (pressure, torque, or current) oil aeration can be detected. | 05-16-2013 |
20130129528 | Compressor-Expander Set Critical Speed Avoidance - A control method and apparatus for critical rotational speed avoidance in a compressor-expander set in a gas refrigeration system. By varying an opening of an antisurge or recycle valve, a shaft power used by the compressor in the compressor-expander set may be varied, thereby varying the rotational speed of the compressor-expander set to move it away from its critical speed zone. Additionally, a feedforward signal may be provided by a compressor-expander set control system to cause an antisurge valve for a recycle compressor to open upon a trip or shutdown of one compressor-expander set. | 05-23-2013 |
20130142670 | FINGER-TYPE PERISTALTIC PUMP COMPRISING A RIBBED ANVIL - The present invention includes a finger-type peristaltic pump with a ribbed anvil. According to some embodiments, a finger type peristaltic pump may comprise a plurality of pressing fingers, an infusion tube and a passive interfacing mechanism. The passive interfacing mechanism may comprise a channel, groove or other suitable mount for placing and mounting an infusion tube such that the pressing fingers are positioned on one side of the tube and the ribbed anvil on the opposite side. The pressing fingers may be positioned to apply an approximately perpendicular force on the tube, pressing it against the ribbed anvil, thus causing a pumping action. | 06-06-2013 |
20130142671 | MOTOR VEHICLE SYSTEM DEVICE AND METHOD FOR OPERATING A MOTOR VEHICLE SYSTEM DEVICE - A motor vehicle system device having a drive assembly, to which a charging device is assigned, has a compressor having at least one compressor runner supported using at least one bearing, the bearing having a stationary first bearing part and a second bearing part that is operatively connected to the compressor runner. An overpressure source is connected to the bearing, using which an overpressure is able to be produced in a bearing gap that is present between the first bearing part and the second bearing part. The overpressure source is the compressor and/or a part of a tandem pump, which besides the overpressure also makes available low air pressure for a user of the motor vehicle system device. The invention also relates to a method for operating a motor vehicle system device. | 06-06-2013 |
20130142672 | METHOD FOR SYNCHRONIZING LINEAR PUMP SYSTEM - A method for synchronizing pistons within linear pumps of a variable dispense ratio system comprises operating first and second pistons, controlling the first and second pistons, and reversing direction of one of the first and second pistons. The first and second pistons are operated within first and second cylinders so that the first piston moves at a slower speed than the second piston to produce a variable dispense ratio. The first and second pistons are controlled to reverse directions whenever one piston reaches an end of its respective cylinder to produce pumping. One of the first and second pistons reverses direction before either piston reaches an end of its respective cylinder to adjust the synchronicity of the pistons. | 06-06-2013 |
20130142673 | MECHANISM AND ARRANGEMENT FOR STATIC AND DYNAMIC ADJUSTMENT OF SUBMERSIBLE PUMPS ASSOCIATED WITH A FLOATING PLATFORM - In an amphibious or flotational device for supporting one or more submersible pumps, the flotational device is structurally configured to provide the means for enabling both static and dynamic positioning of the submersible pumps at selected depths below the flotational device, and to provide means for improved pay-out and storage of flexible piping that enables improved dynamic positioning of the submersible pumps. | 06-06-2013 |
20130149171 | FLUID-WORKING MACHINE WITH MULTI-LOBE RING CAM - A fluid-working machine for a renewable energy generation device, the fluid-working machine comprising a ring cam and a plurality of working chambers, the ring cam having an annular working surface extending around an axis of rotation of the ring cam, the annular working surface defining a plurality of waves, each working chamber having a piston, each piston in operative engagement with the ring cam working surface, the ring cam and working chambers being mounted to rotate relative to each other, cycles of working chamber volume being thereby coupled to rotation of the ring cam relative to the working chambers, characterised in that the individual waves of the ring cam working surface have an asymmetric profile. | 06-13-2013 |
20130149172 | SYSTEM AND METHOD FOR IMPROVED FLOW UNIFORMITY IN A PERISTALTIC PUMP MECHANISM - A pumping mechanism is disclosed that includes a plurality of peristaltic pumping actuators configured to selectively and sequentially compress adjacent portions of a first portion of an at least partially compressible pumping element having an inlet that is upstream of an outlet. The plurality of pumping actuators are further configured to reciprocate at a common drive frequency with a first phase offset between each adjacent pair of pumping actuators. The pumping mechanism also includes at least one compensation actuator arranged to selectively compress a second portion of the at least partially compressible pumping element that is disposed between the first portion and the outlet. The at least one compensation actuator is configured to reciprocate at an optimal displacement and at a modulation frequency that is an integer multiple of the fundamental drive frequency and with a second phase offset between the at least one compensation actuator and the adjacent pumping actuator. | 06-13-2013 |
20130156609 | AIR CIRCULATOR POWERED BY AN ELECTRONICALLY COMMUTED MOTOR (ECM) AND ASSOCIATED METHOD OF USE - An air circulator that includes an electronically commuted motor that is devoid of a transformer and utilizes line voltage as the signal voltage. The motor includes a rotatable blade assembly having at least one blade, wherein the blade assembly is connected to the electronically commuted motor, a housing that is operatively connected to the electronically commuted motor and having a line voltage input, and a switch that is secured to the housing and electrically connected to a signal voltage input of the electronically commuted motor and the line voltage input. | 06-20-2013 |
20130156610 | PUMP POWER CONSUMPTION ENHANCEMENT - Methods and apparatus for reducing the power consumption of a pump are provided herein. In some embodiments, a pump power consumption reduction system for use in a substrate processing system may include a vacuum chamber having an exhaust port; a valve; a first pump having a pump inlet port coupled to the exhaust port via the valve and a pump exhaust port to couple the first pump to an exhaust handling system; and a second pump coupled to the pump exhaust port to selectively reduce an exhaust pressure of the first pump. | 06-20-2013 |
20130156611 | METHODS AND DEVICES FOR CONSTRUCTIVELY USING THE PRESSURE PULSATIONS IN RECIPROCATING COMPRESSORS INSTALLATIONS - Apparatuses and methods for constructively utilizing pressure pulses to enhance the volumetric efficiency of a reciprocating compressor are provided. An apparatus includes a gas circulation device and a controller. The gas circulation device provides a path through which the gas circulates between a reciprocating compressor and a volume bottle buffering the reciprocating compressor from an installation. The gas circulation device is configured to have a resonance frequency substantially equal to a frequency of the performing compression cycles in the reciprocating compressor. The controller is configured to control timing of switching a valve located between the reciprocating compressor and the gas circulation device in order to constructively use pressure pulsations occurring in the gas circulation device, to enhance the volumetric efficiency of the reciprocating compressor. | 06-20-2013 |
20130164147 | VACUUM PUMPING - In order to prevent excessive motor loading or system overheating due to the accumulation of particulate or dust, from SACVD type CVD processes, in the running clearances of the vacuum pump a vacuum pumping arrangement is provided having a plurality of vacuum pumping stages and comprising a first pump inlet through which process fluid from the vacuum chamber can enter the pump and pass through each of the pumping sections towards a pump outlet, and a second pump inlet through which process fluid can enter the pump and pass through only one or more pumping stages downstream of the most upstream pumping stage, wherein the apparatus configured to conveying process fluid from the vacuum chamber to the first pump inlet for pumping during the second processing step and conveying process fluid from the vacuum chamber to the second pump inlet for pumping during the first processing step. | 06-27-2013 |
20130164148 | UTILITY VEHICLE DRIVE SYSTEM - A hybrid drive system for a utility vehicle ( | 06-27-2013 |
20130171009 | FAN SYSTEM AND METHOD FOR CONTROLLING A FAN MOTOR - In a fan system for an internal combustion engine of a motor vehicle, having an electrical fan motor with a commutator, and having a control unit which detects a fault in the fan motor and switches said motor to a voltage-free state if the motor current reaches a predetermined load-dependent switch-off value, the invention proposes that the control unit controls the fan motor with at least a virtually maximum power for a predetermined period of time if the motor current reaches a load-dependent switching value which is lower than the associated switch-off value by a predetermined amount. As a result, the fan motor is not switched off in an undesirable manner if only contamination, but not blocking, is present. | 07-04-2013 |
20130177451 | WASHER SYSTEM AND PUMP FOR SAME - A pump for a washer system includes a housing enclosing a motor driven pump and providing first and second outlets. First and second check valves are fluidly connected to and downstream from the first and second outlets. In one example, the first and second check valves are arranged in the housing. The check valves are configured such that one of the check valves is open to provide the fluid through the one of the outlets while the other check valve is closed to block fluid through the other of the outlets. In operation, a pumping element is rotated to pump fluid through an open first check valve, with the second check valve in the closed position. Reversing rotation of the pumping element pumps fluid through an open second check valve with the first check valve in the closed position. | 07-11-2013 |
20130183167 | OPERATION CONTROL DEVICE FOR A POSITIVE DISPLACEMENT PUMP, PUMP SYSTEM AND METHOD FOR OPERATING SUCH - An operational control device is disclosed for a positive-displacement pump having a motor, means for actuating the motor, state sensor means for detecting an actual operating parameter (e.g., pressure) of the pump, and operating mode means for controlling an operating mode of the pump. A first actuating mode of the operating mode means is set by the actuating means below a first operating-parameter threshold value (P1). This mode brings about a constantly rising pump pressure in the direction of an operating-parameter setpoint value (Pset) in a variable manner, which is dependent on a detected change in the operating parameter over a predefined time interval. A second actuating mode is set as normal operation to the operating-parameter setpoint value by the actuating means above the first operating-parameter threshold value. P1 is fixed or is calculated as a fraction of the operating-parameter setpoint value and/or a pump parameter correlated therewith. | 07-18-2013 |
20130183168 | SURFACE PUMP ASSEMBLY - A surface mounted pump assembly includes a centrifugal pump having a plurality of impellers and an electric motor adapted to drive the pump such that a thrust load from the pump is transmitted to the motor. | 07-18-2013 |
20130189120 | METHOD AND APPARATUS FOR A PERISTALTIC PUMP - A method of fluid delivery from a rotary peristaltic pump is provided. It comprises providing a roller assembly having a plurality of rollers, the roller assembly having at least one anomalous range and determining a rotational position of the plurality of rollers. The method further comprises increasing a speed of the plurality of rollers when at least one of the plurality of rollers are in the anomalous range and decreasing the speed of the plurality of rollers when each of the plurality of rollers are outside the anomalous range. | 07-25-2013 |
20130189121 | SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR AND METHOD OF CONTROLLING SOLENOID THEREOF - The swash plate type variable displacement compressor includes a rotary shaft, a swash plate, a plurality of pistons, a first rotor, a second rotor, a solenoid and a cone clutch. The second rotor transmits the rotation of the first rotor to the swash plate. The solenoid produces electromagnetic force that acts on the first rotor or the second rotor so that the first rotor and the second rotor move toward each other. The cone clutch is engageable by energization of the solenoid. The cone clutch has a male cone portion and a female cone portion. The male cone portion has a conical surface provided on one of the first rotor and the second rotor. The female cone portion has a conical surface provided on the other. The conical surface of the female cone portion is connectable to and disconnectable from the conical surface of the male cone portion. | 07-25-2013 |
20130195680 | ELECTRICALLY DRIVEN HYDROGEN PRESSURE BOOSTER FOR A HYDROGEN DRIVEN VEHICLE - An electrically driven hydrogen pressure booster for a hydrogen driven vehicle includes an inlet for receiving a gas. Also included is a plurality of chambers for compressing the gas, wherein each of the plurality of chambers includes a piston operably coupled to, and driven by, a crankshaft, wherein the crankshaft is driven by an electric motor. Further included is a pipe for transferring the gas between at least two of the plurality of chambers. Yet further included is an outlet for expelling the gas. | 08-01-2013 |
20130195681 | METHOD FOR OBTAINING A FULL RANGE OF LIFT SPEEDS USING A SINGLE INPUT - A method for operating a work attachment of a work machine with a single input is disclosed. In one step of the method, an indication is received that operation of a work circuit in a hydraulic system is to be activated. Upon this indication, the hydraulic system may be placed in a work circuit primary mode in which a pump is placed in fluid communication with the work circuit. The method also includes receiving a lifting lever position and correlating the lifting lever position to a required lifting speed. The method further includes automatically controlling at least two of an engine speed, a pump displacement, and a lifting control valve to satisfy the required lifting speed. Additionally, the operation of the engine speed, pump displacement and lifting control valve may be sequentially staged in pre-defined zones of operation. | 08-01-2013 |
20130195682 | Compressed Air Supply Assembly and Control Method - A compressed air supply assembly for operating a pneumatic assembly includes a compressed air supply; a compressed air connection to the pneumatic assembly; a purge connection to the environment; a pneumatic main line between the compressed air supply and the compressed air connection comprising an air dryer; a purge line between the compressed air connection and the purge connection; and a solenoid valve arrangement with a control valve to control a purge valve. The control valve is connected to a control valve connection in a pneumatic control line connected to a pressure control connection of the purge valve, and the purge valve is connected to a purge valve connection in the purge line. A pressure-maintaining device is connected to the pneumatic control line and maintains control pressure at the pressure control connection when the purge valve connection is open, independently of pressure in the purge line and/or the main line. | 08-01-2013 |
20130195683 | Pre-Charging Pump Chamber By Preemptively Opening A Valve - A reciprocating pump with chamber-charging mechanism is provided. In an example diaphragm pump, a discharge valve can be opened by the pressure of fluid leaving the pump and can also be opened by an intermittent mechanical linkage actuated by the reciprocating member powering the pump. The discharge valve is mechanically opened to allow pressure backflow into the pumping chamber, thereby charging compressible fluid mixtures and gases with an increase in pressure. The increased pressure enables the compressible fluids to open the discharge valve on the next compression stroke and exit the pump. In an implementation, the discharge valve is pushed open by the reciprocating power source in a configuration that seals the valve mechanism from well fluid. In another implementation, the discharge valve is pulled open to pre-charge the pumping chamber. | 08-01-2013 |
20130195684 | SUBSEA PUMPING SYSTEM - A technique is provided for pumping fluid in subsea applications. A self-contained pumping module is created by mounting a pumping unit on a skid that can be lowered to a sea floor. The skid comprises a support structure designed to hold the pumping unit in a desired orientation, such as an inclined orientation with respect to a base of the skid. The self-contained nature of the pumping module facilitates deployment to a sea floor/retrieval from the sea floor to enable use of the pumping module in a variety of subsea applications with reduced complexity and cost. | 08-01-2013 |
20130195685 | SELF-CLEANING DISC VALVE FOR PISTON PUMP - Embodiments of the present disclosure generally provide a disc-valve design with a self-cleaning feature. The self-cleaning feature may be integrated into the valve, for example, by removing a “cut-out” portion between sealing surfaces of ports. These cut-out portions may create vortices that might clean debris from the sealing surfaces. The cut-outs may also provide a place for debris to collect-keeping it away from the sealing surfaces. In addition, or as an alternative to cut-outs, some other type of mechanism, such as sealing members designed to disturb flow to sweep away debris near a sealing surface or helical grooves (rifling) formed in the ports, may also be used to promote self-cleaning. | 08-01-2013 |
20130202453 | MICRO-FLUIDIC PUMP - A micro-fluidic pump comprises one or more channels having an array of resistive heaters, an inlet, outlet and a substrate as a heat sink and a means of cooling the device. The pump is operated with a fire-to-fire delay and/or a cycle-to-cycle delay to control the pumping rate and minimize heating of liquid inside the pump during its operation. | 08-08-2013 |
20130202454 | DOSING PUMP UNIT AND METHOD FOR CONTROLLING A DOSING PUMP UNIT - A metering pump aggregate has a metering chamber ( | 08-08-2013 |
20130202455 | DISPOSABLE PUMPING SYSTEM AND COUPLER - A coupling system for receiving a push rod includes a housing defining an internal channel having a sloped wall, and a piston received within the internal channel. The piston includes at least one flexible member arranged within the channel to be acted upon by the sloped wall to engage the push rod. The only external force required to couple the push rod is an axial force on the piston in a direction. The only external force required to de-couple the push rod is an axial force on the piston in an opposite direction. | 08-08-2013 |
20130209276 | HYDRAULIC CONTROL SYSTEM - The invention relates to a hydraulic system comprising a source of high pressure (A), a consumer (C) connectable to the source of high pressure (A) via a flow control valve ( | 08-15-2013 |
20130209277 | SYSTEMS AND METHODS FOR MONITORING A DISC PUMP SYSTEM USING RFID - A disc pump system includes a pump body having a substantially cylindrical shape defining a cavity for containing a fluid, the cavity being formed by a side wall closed at both ends by substantially circular end walls, at least one of the end walls being a driven end wall. The system includes an actuator operatively associated with the driven end wall to cause an oscillatory motion of the driven end and an isolator is operatively associated with the peripheral portion of the driven end wall to reduce damping of the displacement oscillations. The isolator comprises a flexible material, which in turn includes an RFID tag. | 08-15-2013 |
20130209278 | SYSTEMS AND METHODS FOR ELECTROCHEMICAL DETECTION IN A DISC PUMP - A disc pump system includes a pump body having a substantially cylindrical shape defining a cavity for containing a fluid, the cavity being formed by a side wall closed at both ends by substantially circular end walls, at least one of the end walls being a driven end wall having a central portion and a peripheral portion extending radially outwardly from the central portion of the driven end wall. The system includes an electrochemical detection system including a working electrode, a reference electrode, and an auxiliary electrode. The electrochemical detection system functions to detect the presence of a target gas in the fluid that flows through the pump body. | 08-15-2013 |
20130209279 | SYSTEMS AND METHODS FOR REGULATING THE TEMPERATURE OF A DISC PUMP SYSTEM - A disc pump system includes a pump body having a substantially cylindrical shape defining a cavity for containing a fluid, and an actuator operatively associated with the central portion of a driven end wall to cause an oscillatory motion of the driven end wall thereby generating displacement oscillations with an annular node between the center of the driven end wall and the side wall when in use. A heating element is thermally coupled to the actuator to maintain the actuator at a target temperature. | 08-15-2013 |
20130209280 | Membrane Pump Having an Inertially Controlled Leakage Compensation Valve - The present invention concerns a membrane pump having a hydraulic chamber ( | 08-15-2013 |
20130216399 | ELASTOMERIC SIGNAL TRANSMISSION AND MOTION AMPLIFICATION - A system and method to amplify displacement includes a housing forming a cylindrical chamber having an elastomeric material disposed therein. The chamber being sealed with a first membrane and a second membrane. The first membrane being attached to a first end having and the second membrane being attached to a second end, the first end having a greater diameter than the second end. The method including producing an input displacement with a driver attached to the first membrane, which in turn results in an amplified output displacement at the second end. | 08-22-2013 |
20130216400 | METHOD AND SYSTEM FOR GENERATING MECHANICAL WAVES - A system for generating a mechanical wave is disclosed. The system comprises a camshaft having plurality of rotatable cams, serially mounted on a shaft along an axis of an elastic tubular shell to form a varying phase angle along the shaft. The system further comprises a plurality of cam followers arranged circumferentially about each cam, such that a rotary motion of the cams generates a linear motion of the cam followers to radially bias in internal wall the shell. The variation of the phase angle is selected to generate a three-dimensional traveling wave along the shell. | 08-22-2013 |
20130224043 | AIR MIXING DEVICE FOR BUILDINGS - An air mixing unit suitable for buildings having open spaces. In one embodiment, the air mixing unit may include a centrifugal fan and mounting frame. The fan includes a rotatable body, a drive shaft defining a vertical rotational axis, a plurality of radial blades, a top air inlet, and a bottom air inlet. The fan is operable to draw air through the air inlet openings from axially opposing directions in some embodiments, mix the air, and discharge the mixed air laterally outwards from the fan to the open space. In some embodiments, the air mixing unit may be mounted near the ceiling of the building to temper cooler air drawn from outside with warmer inside room air before discharging the air into the space. A method for mixing and destratifying air within a building is also described. | 08-29-2013 |
20130230412 | SOLUTION FOR CONTROLLING A TURBO COMPRESSOR - An actuator includes at least one stage of turbo compressor, with an outlet for conveying gas compressed in the at least one stage of turbo compressor to at least one cooler, and a shaft for rotating the at least one stage of turbo compressor, for increasing the pressure of the gas to be supplied to the actuator. The actuator also includes a turbine and a control valve by means of which the flow of compressed gas produced by the turbo compressor to the turbine is arranged to be adjusted. A method for controlling the actuator, as well as a control system for the actuator are also described. | 09-05-2013 |
20130230413 | METHOD FOR CONTROLLING VARIABLE DISPLACEMENT PUMP - A method for controlling a variable displacement pump by calculation by a controller using a closed-center-type directional control valve, the method allowing effective utilization of the variable displacement pump while avoiding the risk of engine stall is provided. | 09-05-2013 |
20130243610 | LANCE PUMP HAVING HORIZONTALLY MOUNTED STEPPER/SERVO MOTOR - A pump for pumping viscous liquid. The pump includes a body, an elongate core, and a tube surrounding the core. A stepper or servo motor mounted on the body has a selectively rotatable output shaft. A transmission operatively connecting the motor output shaft and the elongate tube reciprocates the tube between a raised position and a lowered position. An inlet check valve defining an expansible lower chamber is oriented to open during each downward pumping stroke so liquid enters the lower chamber. The pump includes a pump chamber and a feed passage connecting the lower chamber to the pump chamber. The passage has a check valve oriented to open during each upward stroke to deliver liquid from the lower chamber to the pump chamber. An outlet passage connected to the pump chamber permits liquid to flow from the pump chamber to an outlet on each upward and downward stroke. | 09-19-2013 |
20130243611 | HYDRAULIC FAN DRIVE FOR AN INTERNAL COMBUSTION ENGINE - A hydraulic fan drive for a cooling system of an internal combustion engine, in particular a diesel engine of a mobile working machine or a construction machine, is configured to be switched off for a short time or by way of a transition in dependence on a load of the internal combustion engine. A shut-off valve, which is arranged in a working line connecting a variable-displacement pump to a fan motor, is configured to switch off the fan drive. The fan drive is further configured to be switched off by rotational speed monitoring of the internal combustion engine. | 09-19-2013 |
20130243612 | Illumination Instrument for an Infusion Pump - Some embodiments of an infusion pump system may include an illumination instrument that provides the user with an opportunity to illuminate and inspect a targeted location. The illumination instrument can be useful in situations where the ambient lighting is insufficient for the user's inspection needs (e.g., during the night, during presentation or movie in which the lighting is low, or the like). In some embodiments, illumination instrument can be employed to visually inspect one or more components of the pump system, the infusion set, or a combination thereof. | 09-19-2013 |
20130243613 | COAXIAL PUMPING APPARATUS WITH INTERNAL POWER FLUID COLUMN - A pump having an increased energy efficiency is provided. The pump has an internal power fluid column and a transfer piston which is reciprocatingly mounted about the power fluid column. The transfer piston defines a product fluid chamber, located above the transfer piston valve, and a transfer chamber, located below the transfer piston valve. The power fluid column has at least one passageway, which allows the fluid inside the power fluid column to be in communication with a power fluid chamber. The power fluid chamber, the transfer chamber, and the product chamber are situated coaxially about the power fluid column. | 09-19-2013 |
20130251543 | Compressor with Oil Return Passage Formed Between Motor and Shell - A scroll compressor that includes a shell and scroll compressor bodies disposed in the shell. The scroll bodies include a first scroll body and a second scroll body, where the first and second scroll bodies have respective bases and respective scroll ribs that project from the respective bases. The scroll ribs are configured to mutually engage, and the second scroll body is movable relative to the first scroll body for compressing fluid. A pilot ring engages a perimeter surface of the first scroll body to limit movement of the first scroll body in the radial direction. Further, the shell includes different inner diameters to facilitate press fitting a motor into the shell where the motor includes lubricant flow passages. | 09-26-2013 |
20130251544 | SUCTION DUCT WITH ADJUSTABLE DIAMETRIC FIT - A suction duct for a compressor such as a scroll compressor may include a plastic ring body with a metal screen heat staked in a window of the ring body to filter refrigerant gas entering the motor cavity. The ring body may be in surrounding relation of the motor and resiliently compressed in the housing through intermittent contact with the inner housing surface to better seal around the inlet port. Oil drain channels and stabilizing ribs may be along the outside surface of the ring body. | 09-26-2013 |
20130251545 | MODULAR AIR DISCHARGE SYSTEM - An air discharge apparatus such as an air nozzle manifold comprises an elongated air distribution enclosure having an air supply inlet and an elongated air discharge slot. There is at least one removable insert, and generally multiple removeable inserts in the discharge slot. At least one of the inserts has a discharge opening for discharge of air from the enclosure where air can pass through the slots substantially only through the discharge openings. | 09-26-2013 |
20130251546 | METHOD AND CONTROL UNIT FOR METERING FUEL INTO AN EXHAUST GAS DUCT - A method for metering fuel from a high pressure system, comprising at least one high pressure pump, one pressure accumulator and one high pressure injection valve, into an exhaust gas duct of an internal combustion engine in order to regenerate a nitrogen oxide storage catalyst (NSC) disposed in the exhaust gas duct, wherein a higher pressure of the fuel is generated by the electrically actuated high pressure pump, which discretely delivers fuel and has a constant stroke volume, wherein the fuel is supplied to the pressure accumulator comprising a pressure measuring device for determining the fuel pressure and wherein the fuel is injected into the exhaust gas duct via the downstream, electrically actuated high pressure injection valve. | 09-26-2013 |
20130251547 | Liquid Lift Pumps for Gas Wells - A wellbore liquid lift pump includes a pump chamber disposed in a wellbore at a selected longitudinal position and within a liquid column therein. The pump chamber has one way valves proximate each longitudinal end thereof. One of the one way valves is in fluid communication with the liquid column. The other one way valve is in fluid communication with a conduit extending from the pump chamber to the surface. The pump includes means for displacing a volume of the pump chamber by application of pressure thereto. The pressure provided by at least one of a gas and a liquid having a density lower than liquid within the liquid column. | 09-26-2013 |
20130259706 | RADIAL BEARING ASSEMBLY FOR CENTRIFUGAL PUMP - A radial bearing assembly for a centrifugal pump can include a first component that has a longitudinal axis and that includes discrete radial surfaces separated by undercuts, the discrete radial surfaces disposed at a radial distance from the longitudinal axis; a second component that has a longitudinal axis and that includes a radial surface disposed at a radial distance from the longitudinal axis; and, formed by concentric alignment of the longitudinal axis of the first component and the longitudinal axis of the second component, a journal and bearing clearance, defined by the difference between the radial distance of the radial surfaces of the first component and the radial distance of the radial surface of the second component, and axially deviant particle passages defined by the undercuts and the radial surface of the second component. Various other apparatuses, systems, methods, etc., are also disclosed. | 10-03-2013 |
20130259707 | SYSTEM AND METHOD FOR MONITORING AND CONTROL OF CAVITATION IN POSITIVE DISPLACEMENT PUMPS - A system and method are disclosed for monitoring and controlling a positive displacement pump using readings obtained from a plurality of pressure sensors. The pressure sensors may be mounted at the suction, discharge and interstage regions of the pump. Signals from the pressure sensors are compared to obtain a ratio that is used to predict whether a cavitation condition exists within the pump. The ratio can be compared to user provided limits to change an operating characteristic of the pump to reduce predicted cavitation. The pump may be stopped, or pump speed changed, when the ratio is less than a predetermined value. In some embodiments, historical information regarding the ratio may be used to obtain standard deviation information which may then be used to predict whether gas bubbles are passing through the pump. Other embodiments are described and claimed. | 10-03-2013 |
20130259708 | BAG IN BOX BEVERAGE PUMP - A pump operated with compressed gas is disclosed herein. The pump has two separate cylinders which share a common wall. Pistons are attached to a common shaft that runs through the common wall. The pistons are disposed within each of the cylinders. The pistons divide the cylinders into gas and liquid chambers. The liquid chambers of the cylinder form a liquid system and are in fluid communication with the liquid inlet and outlet. The gas chambers of the cylinders form a gas system and are in communication with gas inlet and outlet. A manifold switching mechanism controls routing of compressed gas to either one of the gas chambers to operate the gas operated pump. The pump may also have an automatic shutoff valve which shuts off operation of the pump when liquid from a liquid source has been depleted. | 10-03-2013 |
20130259709 | OIL PUMP CONTROL SYSTEM FOR VEHICLE AND OPERATION METHOD THEREOF - An oil pump control system for a vehicle includes: an oil pump to form a pressure for supplying oil to an engine, an oil pressure adjustment valve to control a pressure of the oil supplied to the engine by controlling the pressure formed by the oil pump, an oil sensor to sense the pressure and temperature of the oil supplied to the engine, and a controller to monitor vehicle information inputted from outside and the oil pressure and temperature sensed by the oil sensor, determine a target oil pressure value based on engine RPM of the monitored vehicle information and the oil temperature, and control the oil pressure adjustment valve such that the monitored oil pressure follows the determined target oil pressure value. | 10-03-2013 |
20130259710 | WORKING VEHICLE AND METHOD FOR CONTROLLING A WORKING VEHICLE - An upper limit speed control part controls the lower limit of motor displacement in conformance with the target upper limit speed via a motor displacement control part when the target upper limit speed is within the normal speed range. The upper limit speed control part controls the upper limit of pilot pressure via a pilot pressure control part in conformance with the target upper limit speed when the target upper limit speed is within the low speed range. Further, when the target upper limit speed is within the low speed range, the upper limit speed control part controls a pilot pressure valve such that the upper limit of pilot pressure increases as drive circuit pressure increases. | 10-03-2013 |
20130259711 | PUMPING SYSTEM FOR EVACUATING GAS FROM A PLURALITY OF CHAMBERS AND METHOD FOR CONTROLLING THE PUMPING SYSTEM - A pumping system for evacuating gas from a plurality of chambers, includes at least one turbomolecular pump, at least two fore-vacuum pumps, at least one connection conduit extending between the at least two fore-vacuum pumps. and at least one transverse constriction for at least one of reducing and regulating gas flow. | 10-03-2013 |
20130272900 | METHOD AND DEVICE FOR CONTROLLING AN AUXILIARY PUMP FOR A TRANSMISSION - A method of controlling an auxiliary pump for supplying the hydraulic fluid of a hybrid transmission of a vehicle. The auxiliary pump, after the expiration of a predetermined time interval of deactivation, is activated to prevent accumulation of air in the intake area of the auxiliary pump. In addition, a device for the execution of the method, in which a control device is provided which has its signals connected with the electric auxiliary pump for the purpose of controlling the auxiliary pump in order to prevent accumulation of air in the intake area of the auxiliary pump. | 10-17-2013 |
20130272901 | METHOD FOR INCREASING COMPRESSED AIR EFFICIENCY IN A PUMP - One or more techniques and/or systems are disclosed for increasing compressed air efficiency in a pump utilizes an air efficiency device in order to optimize the amount of a compressed air in a pump. The air efficiency device may allow for controlling the operation of the air operated diaphragm pump by reducing the flow of compressed air supplied to the pump as the pump moves between first and second diaphragm positions. A sensor may be used to monitor velocity of the diaphragm assemblies. In turn, full position feedback is possible so that the pump self-adjusts to determine the optimum, or close to optimum, turndown point of the diaphragm assemblies. As such, air savings is achieved by minimizing the amount of required compressed air. | 10-17-2013 |
20130272902 | ELECTRONIC CONTROL METHOD AND SYSTEM FOR A PIEZO-ELECTRIC PUMP - A method for actuating a pumping device with an optimal driving voltage, wherein the pumping device comprises a pumping chamber ( | 10-17-2013 |
20130280102 | FLUID PUMPS, METHODS OF MANUFACTURING FLUID PUMPS, AND METHODS OF PUMPING FLUID - A fluid pump includes a pump body enclosing a first cavity and a second cavity, a first flexible member disposed within the first cavity, a second flexible member disposed within the second cavity, and a drive shaft extending between and attached to each of the first flexible member and the second flexible member. The drive shaft is configured to slide back and forth within the pump body. The pump also includes a first shift valve and a second shift valve disposed between the first flexible member and the second flexible member, operatively coupled to deliver a drive fluid to drive fluid chambers in alternating sequence. Some fluid pumps include a housing defining a modular-receiving cavity and a modular insert secured within the modular-receiving cavity by an interference fit. Methods of manufacturing and using fluid pumps are also disclosed. | 10-24-2013 |
20130280103 | Reciprocating-Piston Pump With Plain Bearing Traversed By Flow - A reciprocating-piston pump with plain bearing traversed by flow. The reciprocating-piston pump is driven by an electromagnet to have a bearing of the piston in a cylinder, which bearing is protected against local overheating and from which bearing decomposition and reaction products and any wear products generated are discharged. For this purpose, elongate helical depressions are provided in one of two bearing surfaces in a bearing gap between the piston and the cylinder, which depressions are traversed entirely or partially by a flow of the liquid which is delivered by the piston acting in interaction with other components of the reciprocating-piston pump for the delivery rate of the reciprocating-piston pump. Reciprocating-piston pumps of the described type can be used as dosing pumps and as delivery pumps in fuel-operated standstill heaters, auxiliary heaters and exhaust-gas purification systems in vehicles. | 10-24-2013 |
20130280104 | METHODS AND DEVICES FOR MODULATION OF THE OPERATING POINT OF LIQUID PUMPS IN MEDICAL TREATMENT DEVICES - The invention relates to the field of fluid pumps and medical treatment devices, in particular dialysis machines. The object of the invention is to design methods and devices such that the operating pressures and flow rates of the fluid pumps assume the desired characteristics, in particular constant values or controlled profiles. This object is achieved in that the operating point of a peristaltic hose roller pump is adjusted based on the angle of rotation of the pump rotor or by adjusting the operating point of a centrifugal pump in accordance with a profile. | 10-24-2013 |
20130280105 | DISC PUMP WITH PERIMETER VALVE CONFIGURATION - A disc pump valve includes an elliptical pump base having at least one aperture extending through the base. The base comprises a first end wall and a sealing surface. The pump includes an isolator overlying the base and having an isolator valve aperture extending through the isolator at or near the periphery of the isolator and partially overlying a cavity formed by the base to form an outlet. In addition, the disc pump includes a valve flap disposed between the pump base and the isolator. The flap has apertures arranged about its periphery, beyond the periphery of the cavity but underlying an isolator valve aperture. The flap seals against the sealing surface to close the pump outlet and prevent fluid from flowing from the outlet into the cavity and flexes away from the sealing surface to allow fluid to pass from the cavity through the pump outlet. | 10-24-2013 |
20130280106 | Method And System For Detection and Localization of A Fluid Related To A Piston Machine - A method for detecting and localizing a valve leak in a piston machine having a shaft includes: attaching one or more vibration sensor to a valve block of the piston machine; measuring the vibrations from at least one of the vibration sensors; attaching a sensor to the piston machine where the sensor is designed to produce, directly or indirectly, an angular shaft position signal for the shaft; determining, directly or indirectly, an angular shaft position signal for the shaft; transforming vibration signals from the one or more vibration sensors into one envelope signal representing an instant vibration level; using the angular position signal for constructing window functions that pick the envelope signal in selected angular shaft sectors; using the window functions to find sector based averages of the vibration level; and comparing said averages with a critical ambient vibration level to detect and localize leaks in one or two valves. | 10-24-2013 |
20130287597 | COAXIAL PUMPING APPARATUS WITH INTERNAL POWER FLUID COLUMN - The present application relates generally to pumps, and more particularly to piston type pumps having increased energy efficiency, systems incorporating such piston type pumps, and methods of operating piston type pumps. | 10-31-2013 |
20130287598 | GAS COMPRESSION SYSTEM - A gas compression system includes at least one first compressor provided with at least one first cylinder and one second cylinder that are combined together such that a gas to be compressed, which is taken into the first cylinder at an intake pressure, is compressed by the intake of an engine gas to the second cylinder. The system further includes a pressure checking device to check the pressure of the engine gas during the feeding thereof into the second cylinder. The pressure checking device includes a pressure detector for measuring the pressure of the gas to be compressed during the intake thereof to the first cylinder; and a regulator for adjusting the flow rate of the engine gas in the second cylinder such that the pressure of the gas to be compressed is constant during the intake thereof to the first cylinder. | 10-31-2013 |
20130294934 | SYSTEM AND METHOD FOR A COMPRESSOR - Systems and methods of the invention relate to diagnosing a compressor. A method may include monitoring a pressure of compressed air within a reservoir, actuating a piston within a cylinder of the compressor, and detecting a leak condition of an exhaust valve of the cylinder through recognition of a change in the monitored pressure of the compressed air within the reservoir during a time period in which the piston is actuated. A system is also disclosed including an engine, a compressor operatively connected to the engine, and a controller that is operable to determine a condition of the compressor. | 11-07-2013 |
20130294935 | SYSTEM AND METHOD FOR A COMPRESSOR - Systems and methods of the invention relate to diagnosing a compressor. A method may include monitoring a pressure of compressed air within a reservoir of a compressor, actuating an unloader valve of the compressor, and detecting a leak condition of the compressor through recognition of a change in the monitored pressure of the compressed air within the reservoir during a time period in which the unloader valve is actuated. A system is also disclosed including an engine, a compressor operatively connected to the engine, and a controller that is operable to determine a condition of the compressor. | 11-07-2013 |
20130294936 | SYSTEM AND METHOD FOR A COMPRESSOR - Systems and methods of the invention relate to removing fluid from a compressor to mitigate condensation accumulated for a compressor. A controller can be configured to actuate a drain valve coupled to an aftercooler of a compressor and actuate a check valve to isolate air pressure of the aftercooler from a reservoir of the compressor. Through control of the drain valve of the aftercooler and the check valve, the controller removes fluid from the aftercooler to facitliate thermal management of a compressor. | 11-07-2013 |
20130294937 | SYSTEM AND METHOD FOR A COMPRESSOR - Systems and methods of the invention relate to diagnosing a compressor. A method may include monitoring a crankcase pressure of a compressor, analyzing the monitored crankcase pressure, and identifying a condition of the compressor based on the analysis of the monitored crankcase pressure. A system is also disclosed including an engine, a compressor operatively connected to the engine, and a controller that is operable to identify a condition of the compressor. | 11-07-2013 |
20130294938 | SYSTEM AND METHOD FOR A COMPRESSOR - Systems and methods of the invention relate to diagnosing a compressor. A method may include operating a compressor to compress air from a first stage compressor into an intermediate stage reservoir, to deliver air from the intermediate stage reservoir to a second stage compressor, and to further compress the air in the second stage compressor into a primary reservoir, monitoring an intermediate stage pressure of the intermediate stage reservoir, and identifying a condition of the compressor through recognition of a change in the monitored intermediate stage pressure during a time period in which the compressor is operated. A vehicle system is also provided including an engine, a compressor operatively connected to the engine, and a controller that is operable to identify a condition of the compressor. | 11-07-2013 |
20130294939 | MULTIPLE MOTOR DRIVERS FOR A HERMETICALLY-SEALED MOTOR-COMPRESSOR SYSTEM - A fluid compression system is disclosed having a hermetically-sealed housing with at least two motors and a compressor arranged therein. The motors may be arranged either on both sides of the compressor or in a tandem configuration on one side of the compressor. The motors may be adapted to drive both the compressor and at least one blower device coupled to a free end of shaft that extends through the housing, the blower device being configured to circulate a cooling fluid throughout the housing and thereby cool the motors and any accompanying radial/axial bearings. | 11-07-2013 |
20130294940 | MAGNETICALLY DRIVEN PUMP ARRANGEMENT HAVING A MICROPUMP WITH FORCED FLUSHING, AND OPERATING METHOD - A technical problem (object) of the invention is to achieve a cost-effective construction of a pump arrangement comprising the micropump and to make do with a minimum number of components, which are of the simplest possible design in terms of production and which can be joined together in a precise manner in terms of assembly. In a particular aspect of the problem, complexity of production is to be replaced at least in part by complexity of assembly, whereby necessary close tolerances are also achieved. These are a sine qua non for microsystems and micropumps. In a further aspect of this problem, the micropump is also to be flushed or lubricated in the bearing region, which is a considerable problem at rotational speeds above 5000 rpm. For this purpose, a pump arrangement is proposed, comprising a magnetically drivable micropump (P) for pumping a liquid pumping medium and comprising a bearing carrier ( | 11-07-2013 |
20130294941 | OPTICAL DETECTION OF MEDICAL PUMP ROTOR POSITION - Rotation of a rotatable assembly of a medical pumping apparatus such as a pump rotor of a rotary peristaltic pump is monitored via electromagnetic radiation (e.g., infrared radiation). The rotatable assembly is formed such that it has portions that are reflective and non-reflective with respect to the electromagnetic radiation. A electromagnetic radiation emitter-detector pair is positioned such that as the rotatable assembly rotates, the reflective and non-reflective portions alternately pass through the electromagnetic radiation emitted by the emitter. The detector receives electromagnetic radiation reflected by the reflective portions, but the non-reflective portions absorb or disperse the radiation such that it is not received by the detector. An output circuit provides a signal indicating the position of the rotatable assembly as a function of the electromagnetic radiation received by the detector. | 11-07-2013 |
20130294942 | Membrane Pump with Air Release Valve - A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening, a bleed body which seals the bleed opening and an operating means for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. The suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled. | 11-07-2013 |
20130294943 | COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE - A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control. | 11-07-2013 |
20130294944 | Pressure Exchanger and Performance Adjustment Method of Pressure Exchanger - A pressure exchanger includes a rotator disposed with pressure transmission sections around a rotation axis, each pressure transmission section being so formed that a first flow path and a second flow path are communicated with each other; a first lateral member formed with first fluid inflow paths guiding the first fluid to the first flow paths, second fluid outflow paths guiding, from the second flow paths, second fluid obtained after pressure exchange with the first fluid, second fluid inflow paths guiding the second fluid to the second flow paths, and first fluid outflow paths guiding, from the first flow paths, first fluid obtained after pressure exchange with the second fluid in the thickness direction; and a second lateral member rotatably sandwiching the rotator between the second lateral member and the first lateral member. | 11-07-2013 |
20130302181 | ZERO EMISSIONS PNEUMATIC-ELECTRIC ENGINE - A reciprocating engine has several piston assemblies fitted with embedded magnets in positions that can be alternately repelled and attracted by electromagnetic coils within each of the piston cylinders. The magnetic piston assemblies are connected by rods to a crankshaft with a flywheel. The electromagnetic coils are vented to allow air intake and exhaust to flow through to the piston chambers. Valves and valve timing are controlled relative to the crankshaft rotation such that compressed air can be generated and stored in tanks. The compressed air is used to power air motors to turn electric generators for on-board battery charging. The reciprocating electric engine is configured to idle at a speed that overcomes friction. | 11-14-2013 |
20130302182 | PUMPING APPARATUS AND METHODS - This invention relates to apparatus and methods for pumping liquids, in particular using hydraulic ram pump techniques. The techniques we describe can advantageously be used, for example, for drawing water from a deep well in a developing country. We describe a hydraulic ram liquid pump, the pump comprising: a liquid conduit having first and second arms and a connecting portion to connect said arms; first and second one-way inlet valves to said liquid conduit; first and second internal shockwave generating devices within said liquid conduit between said first and second inlets; at least one one-way exit valve from said liquid conduit; wherein, in use, when said second shockwave generating device is sealed a column of liquid in said first arm is in fluid communication with a said exit valve and when said first shockwave generating device is sealed a column of liquid in said second arm. | 11-14-2013 |
20130302183 | CRANKED ROD PUMP APPARATUS AND METHOD - An improved apparatus and method are provided, for pumping fluids, such as water and/or hydrocarbons, from a subterranean formation or reservoir, through use of a cranked rod pumping (cranked rod pumping) apparatus for imparting reciprocating substantially vertical motion to a rod of a sucker-rod pump having a pump stroke. The cranked rod pumping apparatus includes a motor driven cranked mechanical actuator arrangement. The cranked mechanical actuator arrangement includes a cable coupled to a substantially vertically moveable member which is attached to the rod of the sucker-rod pump for imparting and controlling vertical motion of the rod of the sucker-rod pump. | 11-14-2013 |
20130302184 | Compressor Windage Mitigation - A compressor ( | 11-14-2013 |
20130315753 | SPEED CONTROL OF ENGINE PUMP VIA SUMMING DIFFERENTIAL - A fluid pumping system for an engine includes a pump; a summing differential connected to the pump; a gearbox connected to the summing differential, wherein the gearbox causes the pump to rotate to provide a fluid flow in the engine via the summing differential; and a motor connected to the summing differential, wherein the motor adjusts a rotational speed of the pump via the summing differential | 11-28-2013 |
20130323086 | HYDRAULIC GRAVITY RAM PUMP - A piston type pumping apparatus comprises a vertically oriented cylinder having a top and a bottom with a first aperture. There are first and second passageways for liquid in the cylinder at the top and bottom respectively thereof. A piston is reciprocatingly mounted within the cylinder and has an area against which pressurized fluid acts in the direction of movement of the piston. A hollow piston rod is connected to the piston and extends below the piston and slidably through the first aperture. There is a reload chamber below the cylinder. The piston rod extends slidably into the reload chamber and has a third passageway for liquid communicating thereto. A first one-way valve is located in the third passageway. There is also a fourth passageway that extends from the reload chamber to a source of liquid to be pumped and a second one-way valve therein. | 12-05-2013 |
20130336806 | ROTATING RADIAL TUBE PUMP - A rotating radial tube pump has a rotary portion and an extended inlet integral therewith, both of which rotate about a longitudinal axis through the extended inlet. The rotary portion has a traverse passageway with outlet openings at each end and an inlet opening into the transverse passageway. The extended inlet has a passageway traversing between an extended inlet opening and an extended outlet opening at each end of the passageway. The extended outlet opening communicates with the inlet opening of the passageway through the rotary portion. As the extended inlet and the rotary portion are rotated about a longitudinal axis through the extended inlet, the fluid flows into an inlet opening of the passageway traversing the extended inlet and then into the passageway traversing the rotary portion and then is expelled radially outward from outlet openings at each end of the passageway traversing the rotary portion. | 12-19-2013 |
20130336807 | Fuel Management System for Public Service Vehicles - The present invention includes a novel fuel management and auxiliary power system and apparatus having a control module in control of auxiliary equipment and accessories and climate control functions of a vehicle, while the vehicle's engine is not running. The system of this invention is capable of detecting warning states and providing status indicators to an operator on a graphical user interface. At the graphical user interface, the operator is capable of initiating start up of the system and accessing status and historical technical data of the system. | 12-19-2013 |
20130336808 | OUT ROTOR DRIVE ELECTRICAL VANE PUMP - A variable displacement vane oil pump for use in a vehicle powertrain includes a mechanical drive coupled to a first portion of a rotor and an electrical drive coupled to a second portion of the rotor such that the variable displacement vane pump may be driven by either or both the mechanical and electrical drives to achieve greater efficiency and control while maintaining oil pressure under all circumstances including start/stop conditions. The oil pump, when being driven by the mechanical drive only, remains coupled to the electric drive such that it rotates the motor of the electric drive to generate electricity that may be used to recharge a source of electricity such as a battery. The electric drive further includes a four phase controller for controlling the motor of the electric drive to efficiently operate the variable displacement vane oil pump without the use of a pressure relief valve. | 12-19-2013 |
20130336809 | FASTENER-DRIVING DEVICE AND CONTROLLING METHOD - The driving device | 12-19-2013 |
20130336810 | AIR COMPRESSOR PROGNOSTIC SYSTEM - Systems and methods of the invention relate to monitoring a change in a rotational speed of a crankshaft to identify a failure related to a crankcase breather valve. A reciprocating compressor can include a detection component that is configured to track a rotational speed of a crankshaft of a compressor to identify a change in rotational speed. In an embodiment, the rotational speed can be monitored while unloaded and/or below approximiately 800 Revolutions Per Minute (RPM). Based on a change in a rotational speed of the crankshaft, a controller can be configured to communicate an alert which corresponds to a failure related to the crankcase breather valve. | 12-19-2013 |
20130336811 | ROTOR APPARATUS - A rotor apparatus is provided. In another aspect, a woven and/or stacked fiber rotor or impeller is used for a water turbine. A further aspect provides a woven and/or stacked fiber rotor or impeller used for a wind turbine. In | 12-19-2013 |
20130343914 | VARIABLE RADIAL FLUID DEVICE WITH DIFFERENTIAL PISTON CONTROL - According to one embodiment, a radial fluid device comprises a cylinder block, a first plurality of pistons including a first piston, and a second plurality of pistons including a second piston. Each of the first plurality of pistons are slidably received within a different one of a first plurality of radially extending cylinders. Each of the second plurality of pistons are slidably received within a different one of a second plurality of radially extending cylinders. The second piston is configurable to begin its stroke at a different time relative to the first piston within the first cylinder pair. | 12-26-2013 |
20130343915 | VARIABLE RADIAL FLUID DEVICE WITH COUNTERACTING CAMS - According to one embodiment, a radial fluid device comprises a cylinder block, a first plurality of pistons, a second plurality of pistons, a first cam, a second cam, and a cam rotation device. Each of the first plurality of pistons are slidably received within a different one of a first plurality of radially extending cylinders. Each of the second plurality of pistons are slidably received within a different one of a second plurality of radially extending cylinders. The first cam is disposed about the first plurality of radially extending cylinders. The second cam is disposed about the second plurality of radially extending cylinders. The cam rotation device is coupled to the first cam and the second cam. The cam rotation device is operable to rotate the first cam in a first direction and the second cam in a second direction. | 12-26-2013 |
20130343916 | Systems and Methods for Speed Control of an Air Mover - In accordance with embodiments of the present disclosure, a system may include a rotational component for moving air, a speed sensor, an electrical draw sensor, and a controller. The speed sensor may configured to determine a speed of the rotational component. The electrical draw sensor may be configured to determine an electrical draw of the air mover. The controller may be communicatively coupled to the rotational component, the speed sensor, and the electrical draw sensor, and may be configured to control the speed of the rotational component based on the speed and the electrical draw. | 12-26-2013 |
20130343917 | VALVE, PUMP SYSTEM AND METHOD FOR OPERATION OF A PUMP SYSTEM - A valve for the control of a fluid flow, with a connection block ( | 12-26-2013 |
20130343918 | HYDRAULIC PUMP WITH SOLID-STATE ACTUATOR - A hydraulic pump includes a port and a piston assembly fluidically coupled to the port. The piston assembly includes a piston and a solid-state actuator, where a shape change of the solid-state actuator is induced when a field is applied to the solid-state actuator, and where alternating shape changes of the solid-state actuator provide reciprocating movement to the piston. | 12-26-2013 |
20140003965 | Downhole Jet Pump | 01-02-2014 |
20140003966 | HIGH PRESSURE FUEL PUMP | 01-02-2014 |
20140003967 | FLUID HEATING APPARATUS AND METHOD | 01-02-2014 |
20140003968 | PISTON-TYPE TRANSFER PUMP DEVICE, METHOD FOR TRANSFERRING PARTICULATE SOLID MATTER USING SUCH A DEVICE, APPLICATION OF THE METHOD TO THE FEEDING OF A GASIFICATION REACTOR | 01-02-2014 |
20140003969 | ENERGY EXTRACTION SYSTEM | 01-02-2014 |
20140010674 | PUMP FACILITY FOR A HEARING DEVICE AND METHOD OF INFLATING AND DEFLATING AN EARMOLD MEMBER - A pump facility for an earmold of a hearing device communicates by way of a channel facility with a variable-volume element of the earmold. A medium can flow through the channel facility to the variable-volume element and away from the variable-volume element. A filling mechanism is embodied for pumping the medium through the channel facility to the variable-volume element. In addition a drainage mechanism is embodied for actively pumping and conveys the medium away from the variable-volume element through the channel facility. | 01-09-2014 |
20140010675 | PUMP FOR STERILISATION APPARATUS - A peristaltic pump ( | 01-09-2014 |
20140017096 | Shock Absorbers - A damping unit, such as a shock absorber, includes a cylinder ( | 01-16-2014 |
20140017097 | PUMP MODULE AND POSITIVE DISPLACEMENT PUMP - A pump module ( | 01-16-2014 |
20140023521 | Furnace Air Handler Blower Assembly Utilizing a Motor Connected to an Impeller Fan that is Suspended with Mounting Arms - A blower assembly having a blower housing, an impeller fan within the blower housing, the impeller fan being adapted for rotation about an axis and having a plurality of impeller blades and having an axial length, a motor having a stator and a rotor, the motor having an axial length, the rotor being configured to rotate relative to the stator for rotation about the axis, the rotor and the impeller fan being coupled so that the impeller fan rotates with the rotor about the axis, wherein a ratio of the axial length of the motor to the axial length of the impeller fan is less than 0.3, and a motor support bracket operatively securing the stator to one of the first and second side walls of the blower housing. | 01-23-2014 |
20140023522 | DYNAMIC MECHANISM TO LIFT THE FLUID TO HIGHEST - A dynamic fluid pump for illustrating fluid dynamics includes a basin of the fluid have a base and a mass of fluid from the basin surface to the base. The dynamic fluid pump is supported at the bottom of the basin. The dynamic fluid pump includes four inner pipes. Two from the inner pipes are upwardly to the fluid tank, one upwardly to the surface of the basin and one act as a vent. The Smallest inner pipe are inside the main inner pipe and the secondary inner pipe smaller diameter than the main inner pipe. Two upwardly inner pipes (main and secondary) each one includes a piston in the bottom of the basin connected together to a pivot assembly in the base of the basin. So that, one of the pistons is at or near the top of one of the inner pipes when the other of the pistons is at or near the bottom of the other inner pipe. | 01-23-2014 |
20140023523 | CLOSED LOOP DRIVE CIRCUIT WITH EXTERNAL BRAKE ASSIST - A hydrostatic drive system for a vehicle ( | 01-23-2014 |
20140023524 | METHODS FOR CONTROLLING A COMPRESSOR WITH DOUBLE SUCTION FOR REFRIGERATION SYSTEMS - The present invention refers to methods for controlling a double suction compressor for application in refrigeration systems, capable of meeting the different demands for cost, efficiency and control of temperatures by means of techniques of complexity levels and different configurations of the elements from the control loop (temperature sensors, actuators, controllers, etc.). The proposed solutions include the description of a method for controlling and adjusting the refrigeration capacities of a refrigeration system equipped with a double suction compressor, the refrigeration system comprising compartments to be refrigerated and comprising at least two evaporators ( | 01-23-2014 |
20140030113 | Method and System for Determining a Pump Setpoint - A method for determining a pump setpoint for delivering a desired volumetric flow rate of a substance through a channel comprises measuring a first volumetric flow rate through the channel for a first pump setpoint. The pump setpoint for delivering the desired volumetric flow rate is determined based on previously obtained performance curves of the pump and a flow resistance of the channel. Each performance curve represents the relation between flow rate and pressure at the pump's exit for a different setpoint. The flow resistance of the channel is determined based on said first volumetric flow rate and on the performance curves of the pump. | 01-30-2014 |
20140030114 | SYSTEM AND APPARATUS FOR REDUCING THRUST FORCES ACTING ON A COMPRESSOR ROTOR - A system and method of counter-balancing an aerodynamic thrust force generated by the impellers of a centrifugal compressor is disclosed. A rotor assembly includes a rotatable shaft disposed within a housing, and having a plurality of impellers axially-spaced from each other and coupled to the rotatable shaft for rotation there-with. Adjacent impellers along the rotatable shaft are each separated from each other with a stationary wall having one or more magnets coupled thereto. The magnets are disposed axially-adjacent a hub-side of each impeller such that the one or more magnets magnetically-attract each impeller toward the adjacent stationary wall, thereby reducing a net impeller thrust of the rotor assembly. | 01-30-2014 |
20140030115 | System and Method for Motor Drive Control Pad and Drive Terminals - Embodiments of the invention provide a variable frequency drive system and a method of controlling a pump driven by a motor with the pump in fluid communication with a fluid system. The drive system and method can provide one or more of the following: a sleep mode, pipe break detection, a line fill mode, an automatic start mode, dry run protection, an electromagnetic interference filter compatible with a ground fault circuit interrupter, two-wire and three-wire and three-phase motor compatibility, a simple start-up process, automatic password protection, a pump out mode, digital input/output terminals, and removable input and output power terminal blocks. | 01-30-2014 |
20140030116 | PUMP - A pump flexes a diaphragm to move fluid through a pump chamber. In one implementation, the diaphragm is conical shaped. In one implementation, the diaphragm extends across the pump chamber, wherein a passage extends from a first side of the diaphragm to a second side of the diaphragm supply fluid are being pumped by the diaphragm. In one implementation, a bypass passage extends from adjacent an inlet to adjacent an outlet of the pump chamber. | 01-30-2014 |
20140037465 | METHOD FOR INCREASING COMPRESSED AIR EFFICIENCY IN A PUMP - One or more techniques and/or systems are disclosed for increasing compressed air efficiency in a pump utilizes an air efficiency device in order to optimize the amount of a compressed air in a pump. The air efficiency device may allow for controlling the operation of the air operated diaphragm pump by reducing the flow of compressed air supplied to the pump as the pump moves between first and second diaphragm positions. A sensor may be used to monitor velocity of the diaphragm assemblies. In turn, full position feedback is possible so that the pump self-adjusts to determine the optimum, or close to optimum, turndown point of the diaphragm assemblies. As such, air savings is achieved by minimizing the amount of required compressed air. | 02-06-2014 |
20140037466 | DIAPHRAGM PUMP AND METHOD FOR DELIVERING FINE-GRAIN POWDER WITH THE AID OF A DIAPHRAGM PUMP - The invention relates to a diaphragm pump having a delivery space, which encloses a working volume, at least one deflectable diaphragm, which can be moved into a suction position and a pump position, an inlet valve arranged on a suction side of the diaphragm pump and an outlet valve arranged on the pressure side of the diaphragm pump. In order to make it possible to deliver fine-grain powder, for example, non-flowable powders having particle sizes of 0.01 μm to 100 μm, using a diaphragm pump, it is proposed that a gas feed for introducing a gas into the delivery space be arranged at the delivery space. In addition, the invention relates to a method for delivering fine-grain powder. | 02-06-2014 |
20140044565 | FLUID TRANSPORTER AND FLUID TRANSPORTER DRIVING METHOD - A fluid transporter which transports fluid by pressing a plurality of radially disposed pressing shafts against a tube held in a circular-arc shape in directions from the inside of the circular-arc shape in accordance with rotation of a rotational pressing plate having a plurality of projections on the outer circumference thereof so as to allow flow of fluid includes: a first detecting section which detects the rotation angle of the rotational pressing plate; a second detecting section which detects the rotation angle of either a driving rotor for giving a rotational force to the rotational pressing plate or a reduction transmission mechanism for connecting the driving rotor and the rotational pressing plate; a data table which shows the relationship between the rotation angle of the rotational pressing plate and a cumulative delivery amount; and a controller which controls the drive of the driving rotor. | 02-13-2014 |
20140044566 | FLUID TRANSPORTER AND FLUID TRANSPORTER DRIVING METHOD - A fluid transporter which transports fluid by pressing a plurality of radially disposed pressing shafts against a tube held in a circular-arc shape in directions from the inside of the circular-arc shape in accordance with rotation of a rotational pressing plate having a plurality of projections on the outer circumference thereof so as to allow flow of fluid includes: a first detecting section which detects the rotation angle of the rotational pressing plate; a second detecting section which detects the rotation angle of either a driving rotor for giving a rotational force to the rotational pressing plate or a reduction transmission mechanism for connecting the driving rotor and the rotational pressing plate; a data table which shows the relationship between the rotation angle of the rotational pressing plate and a cumulative delivery amount; and a controller which controls the drive of the driving rotor. | 02-13-2014 |
20140044567 | RECIPROCATING PUMP VALVE ASSEMBLY WITH THERMAL RELIEF - A reciprocating pump comprises a cylinder, an inlet check valve, a piston, an outlet check valve and a purge circuit. The cylinder has a first end and a second end. The inlet check valve is disposed proximate a first end of the cylinder. The piston is disposed within the cylinder between the inlet check valve and the second end. The outlet check valve is disposed within the piston. The purge circuit extends across the inlet check valve and the outlet check valve to fluidly couple the first end and the second end. | 02-13-2014 |
20140050592 | TEMPERATURE DETECTION METHOD IN A HYDRAULIC ARRANGEMENT - Method for determining the temperature of a fluid in a hydraulic arrangement for a motor vehicle. The hydraulic arrangement has a pump arrangement, which is driven by means of a drive motor, and a pressure sensor, which is connected to a discharge port of the pump arrangement and is used to measure the pressure of the fluid. The pump arrangement is connected to a tank via a leakage point. The temperature of the fluid is determined on the basis of a relationship between a state variable of the drive motor and the temperature of the fluid at a predetermined pressure of the fluid, said relationship being specific to the hydraulic arrangement. | 02-20-2014 |
20140050593 | Supercritical Working Fluid Circuit with a Turbo Pump and a Start Pump in Series Configuration - Aspects of the invention provided herein include heat engine systems, methods for generating electricity, and methods for starting a turbo pump. In some configurations, the heat engine system contains a start pump and a turbo pump disposed in series along a working fluid circuit and configured to circulate a working fluid within the working fluid circuit. The start pump may have a pump portion coupled to a motor-driven portion and the turbo pump may have a pump portion coupled to a drive turbine. In one configuration, the pump portion of the start pump is fluidly coupled to the working fluid circuit downstream of and in series with the pump portion of the turbo pump. In another configuration, the pump portion of the start pump is fluidly coupled to the working fluid circuit upstream of and in series with the pump portion of the turbo pump. | 02-20-2014 |
20140050594 | RADIAL BEARINGS FOR DEEP WELL SUBMERSIBLE PUMPS - A bearing assembly for use in a deepwell submersible pump, the pump and a method of pumping a geothermal fluid. The bearing assembly is constructed to include a lubricant conveying mechanism, a bearing sleeve and a multilayer bushing. The lubricant is forced between the bushing and a bearing sleeve by the lubricant conveying mechanism that cooperates with the rotation of a shaft used to connect a power-providing motor with one or more pump impellers. In this way, there exists a substantially continuous lubricant environment between the sleeve and bushing to act in a hydrodynamic fashion. | 02-20-2014 |
20140056723 | REFRIGERATOR WITH ENERGY CONSUMPTION OPTIMIZATION USING ADAPTIVE FAN DELAY - A method of determining a time delay for turning off an evaporator fan in a refrigerator after a compressor of the refrigerator is turned off includes operating the evaporator fan in the refrigerator for a period of time, operating the compressor of the refrigerator to cool the refrigerator to a predetermined temperature after turning off the evaporator fan, determining a power consumption value for operating the compressor to cool the refrigerator, repeating the previous steps to obtain a plurality of times and a plurality of power consumption values, selecting the time coinciding with a lowest power consumption value, and adapting the refrigerator to use the time as the time delay for turning off the evaporator fan in the refrigerator after the compressor of the refrigerator is turned off. | 02-27-2014 |
20140056724 | DIAPHRAGM METERING PUMP HAVING A DEGASSING SYSTEM - A diaphragm metering pump includes a pump body having a head portion including a suction side and a discharge side defining a flow path. A valve seat is arranged at one of the suction side and the discharge side, and a check valve is arranged at the valve seat. A degassing system includes a check valve actuator operatively connected to the check valve. The check valve actuator is selectively activated to unseat the check valve from the valve seat to allow gases trapped in the head portion to pass through the discharge side. | 02-27-2014 |
20140056725 | Suction Header Arrangement for Oil Management in Multiple-Compressor Systems - A refrigeration system with two or more compressors configured to compress a flow of refrigerant with oil entrained therein. A suction flow piping arrangement is configured to supply a flow of refrigerant and oil to the two or more compressors. The suction flow piping arrangement has a suction header configured to carry the flow of refrigerant and oil, and a primary compressor supply conduit connected to the suction header. The primary compressor supply conduit supplies refrigerant and oil to a first compressor of the two or more compressors. A secondary compressor supply conduit branches off from the suction header. The secondary compressor supply conduit supplies refrigerant to a second compressor of the two or more compressors. The primary compressor supply conduit is configured to supply more oil to the first compressor than the secondary compressor supply conduit supplies to the second compressor. | 02-27-2014 |
20140064987 | ELECTROMAGNETIC CIRCULATION PUMP - A fluid pump assembly is used in combination with a container having a wall. The pump assembly comprises a first casing disposed outside the container, a first magnetic assembly including a stationary magnetic drive member non-rotatably mounted to the first casing, a second casing disposed inside the container, and a rotatable second magnetic assembly mounted to the second casing and including a rotatable magnetic driven member drivingly coupled to a fluid motion imparting device. The magnetic drive member comprises electromagnets non-rotatably mounted within the first casing so that the electromagnets are provided to be energized in succession to create a rotating magnetic field for continuously rotating the rotatable magnetic driven member. The second casing is detachably securable to the wall solely by the magnetic attraction force between the magnetic drive member and the magnetic driven member. | 03-06-2014 |
20140072453 | Intensifier Pump Monitoring System - An apparatus and method of graphically indicating the performance of intensifier pumps used in water-jet cutting utilizes output signals from end-of-stroke proximity sensors to establish stroke times for the pump's plungers. The stroke times are then used to present bar graphs for each plunger reflecting the magnitude of the time valve by the height of the bars and performance status by the color of the bars. | 03-13-2014 |
20140072454 | HIGH PRESSURE INTENSIFIERS - A hydraulic intensifier comprising a reciprocating differential piston arrangement and a controller configured to control the supply of low pressure hydraulic fluid to the intensifier is provided. The controller comprises at least one solenoid operated pilot valve and electronic operator configured to operate the pilot valve. | 03-13-2014 |
20140072455 | BAG IN BOX BEVERAGE PUMP - A pump operated with compressed gas is disclosed herein. The pump has two separate cylinders which share a common wall. Pistons are attached to a common shaft that runs through the common wall. The pistons are disposed within each of the cylinders. The pistons divide the cylinders into gas and liquid chambers. The liquid chambers of the cylinder form a liquid system and are in fluid communication with the liquid inlet and outlet. The gas chambers of the cylinders form a gas system and are in communication with gas inlet and outlet. A manifold switching mechanism controls routing of compressed gas to either one of the gas chambers to operate the gas operated pump by way of a spool valve or a shuttle valve mechanism. The pump may also have an automatic shutoff valve which shuts off operation of the pump when liquid from a liquid source has been depleted. | 03-13-2014 |
20140079562 | APPARATUS AND METHOD FOR GENERATING AIR PRESSURE IN ECO-FRIENDLY VEHICLE - Disclosed herein is an apparatus for generating air pressure in an eco-friendly vehicle that includes an engine driven air compressor operated by an engine, an electric air compressor operated by a battery, and an air tank connected to an outlet of the engine driven air compressor and to an outlet of the electric air compressor so as to store air which is pressurized. A method for generating air pressure in an eco-friendly vehicle includes an operation start air pressure determination step to compare air pressure in the air tank with operation start air pressure, an engine drive determination step to determine whether or not the engine is being operated when the air pressure is less than the operation start air pressure, an electric air compressor operation step to operate the electric air compressor, and an engine driven air compressor operation step to operate the engine driven air compressor accordingly. | 03-20-2014 |
20140079563 | DIGITAL MICROFLUIDIC MANIPULATION DEVICE AND MANIPULATION METHOD THEREOF - This invention provides a digital microfluidic manipulation device and a manipulation method thereof. This device comprises a PDMS membrane having a surface comprising a plurality of hydrophobic microstructures; a plurality of air chambers arranged in an array and placed under the PDMS membrane; and a plurality of air channels, each of which connects to a corresponding one of the plurality of air chambers. When a suction force is transmitted via one of the plurality of air channels to the corresponding air chamber, a portion of the PDMS membrane above the air chamber deforms toward the air chamber, so that the surface morphology and the contact angle of the liquid/solid interface of the surface comprising the plurality of hydrophobic microstructures are altered and thereby to drive droplets. | 03-20-2014 |
20140079564 | SYSTEMS AND METHOD FOR WIRELESSLY COMMUNICATING WITH ELECTRIC MOTORS - An electric motor communication system for use with a fluid moving system is provided. The electric motor communication system includes an electric motor including a wireless communication device configured to transmit and receive wireless signals, and a processing device coupled to the wireless communication device and configured to control the electric motor based at least in part on wireless signals received at the wireless communication device. The electric motor communication system further includes at least one external device configured to communicate wirelessly with the electric motor. | 03-20-2014 |
20140093398 | ELECTRIC MACHINE INCLUDING A SHAFT HAVING A PUMP VANE - An electric machine includes an electric machine housing having a first end, a second end, and an interior. A stator is fixedly mounted relative to the electric machine housing. A pump housing is provided at one of the first and second ends. A rotor is rotatably supported relative to the stator. The rotor includes a shaft having a first end that extends to a second end through an uninterrupted intermediate portion having an outer surface. One of the first and second ends extends into the pump housing. At least one vane element projects from the outer surface and is arranged in the pump housing. | 04-03-2014 |
20140093399 | Turbine-Driven Reciprocating Compressor and Method - A reciprocating compressor system is provided comprising: a turbine; a reciprocating compressor driven by the turbine; and a gearbox arranged between the turbine and the reciprocating compressor. The turbine is provided with a barring device arranged for slow-turning the turbine during a barring phase. A clutch is arranged between the turbine and the reciprocating compressor, for mechanically disconnecting the turbine from the reciprocating compressor during a transient phase of operation of the system. | 04-03-2014 |
20140093400 | PROCESS AND SYSTEM FOR THE RAPID AND SAFE ACTIVATION OF FUEL PUMPS - A process is provided for the rapid and safe activation of a fuel pump, having a definable fallback level for a delivery volume of the fuel pump. The process recognizes a possible crash situation and, defines the fallback level as a first delivery volume value which is assigned to a closing position of the fuel pump in response to the recognized possible crash situation. A control system includes a crash recognition device and an electronic fuel pump with the definable fallback level, in which case the crash recognition device is connected with respect to communication with the electronic fuel pump, and the crash recognition device is constructed for implementing the process. | 04-03-2014 |
20140099211 | Detection of Well Fluid Contamination in Seabed Fluids of Well Pump Assemblies - A submersible well pump assembly include a rotary pump driven by an electrical motor. A seal section operably connects between the motor and the pump for reducing a pressure differential between motor oil in the motor and well fluid surrounding the pump assembly. The pump assembly contains a sealed fluid. A sensor mounted to the well pump assembly detects contamination of the sealed fluid by well fluid encroaching into contact with the sealed fluid. The sensor may be mounted in the motor or the seal section to detect well fluid contamination of motor oil. The sensor may be mounted in a secondary pump that has that has temporary barriers to block the entry of well fluid into a buffer fluid contained in the secondary pump while the secondary pump is in a storage condition within a well. | 04-10-2014 |
20140099212 | AUTOMATIC OIL SPLILL DETECTION SYSTEM - A method for detecting and isolation a leak in a hydraulic system having a supply pump serving at least one control valve is disclosed. In one embodiment, the control valve has multiple work sections. In step of the method, the hydraulic system is activated. In another step, an actuation command for at least one of the work sections is received, for example from a human-to-machine interface. Subsequently, the method may include generating a flow demand for the work sections for which an actuation command has been received. The method also includes the step of implementing at least one of a first, second, third, and fourth leak detection and isolation protocol to detect and isolate a leak between the pump and the control valve assembly, a leak between the reservoir and the control valve assembly and a leak between the at least one work circuit and the control valve assembly. | 04-10-2014 |
20140105759 | LINEAR PUMP AND MOTOR SYSTEMS AND METHODS - A linear pump and motor system includes a motor, rotary-to-linear mechanism, pressure compensation device (PCD), and gas mitigation assembly. The rotary-to-linear mechanism may translate rotation of a motor into linear motion to provide a pumping action. A PCD may minimize a pressure differential between lubrication fluids and external fluids. A gas mitigation assembly may provide a mechanism that mechanically opens a valve. In some embodiments, a PCD may be utilized separately from the linear pump. In some embodiments, a gas mitigation assembly may be utilized separately from the linear pump. | 04-17-2014 |
20140112802 | MEMBRANE DUST-PUMPING SYSTEM - A diaphragm pump is provided for the pressurized delivery of dusts in a dust feeding device. The diaphragm pump includes a storage hopper which is subjected to inert gas at ambient pressure and which serves for the storage of the dust. A sluicing vessel is provided which is connected via an inlet in the upper region, via a shut-off fitting and via a dust supply line to the dust store of the storage hopper, and is connected via an outlet in the lower region and via a shut-off fitting to a high-pressure device. A diaphragm is mounted in the sluicing vessel. An expansion line is provided, one end of which is connected via a filter element to the sluicing vessel and into which a shut-off fitting is incorporated. The diaphragm pump includes charging line which is connected via a filter element and via a shut-off fitting to the sluicing vessel. | 04-24-2014 |
20140112803 | PUMP SYSTEM, METHOD AND USES FOR TRANSPORTING INJECTION WATER TO AN UNDERWATER INJECTION WELL - Pump system ( | 04-24-2014 |
20140119950 | Fluid Level Sensor Systems and Methods - Fluid level sensor systems and methods can include an inverted cup with a sealed top and an open bottom, the inverted cup defining an inner air space. An inner pressure tube can extend from the inner air space and through the sealed top. A contact sensor can be positioned near the sealed top, the contact sensor including a pair of contacts. A pair of conductors can extend from the contact sensor, one conductor extending from each one of the pair of contacts. | 05-01-2014 |
20140119951 | FAILURE DIAGNOSIS APPARATUS OF BRAKE SYSTEM AND FAILURE DIAGNOSIS METHOD OF BRAKE SYSTEM - A failure diagnosis apparatus of brake system includes a determination unit to determine functional normality of an electric vacuum pump based on a detection result of at least one of a booster internal pressure detection unit for detecting internal pressure of a negative pressure chamber of a booster and a current value detection unit for detecting an operating electric current value of the pump and a detection result of a pipe internal pressure detection unit for detecting internal pressure of a pipe communicated with a discharge port of the pump. | 05-01-2014 |
20140119952 | PUMP AND METHOD FOR OPERATING PUMP - A pump according to the present invention is provided with a communication portion that provides continuous communication between a pump section and a discharge section in a state where a discharge-side check valve suppresses a backflow, and a size of the communication portion is set so that, when the continuously expanding and contracting pump section contracts, a volume of gas mixed in liquid in the pump section is contracted. | 05-01-2014 |
20140119953 | METHOD FOR CONTROLLING AT LEAST A PART OF A PUMP STATION - A method for controlling at least a part of a pump station including a number of speed controlled pumps, the method is arranged to minimize the specific energy consumption E | 05-01-2014 |
20140127036 | PLUNGER WITH OUTLET VALVE ASSEMBLY FOR PLUNGER PUMPS - A plunger pump includes a housing with a discharge valve in communication with an outlet. The housing includes a bore that slidably accommodates a plunger. The housing also includes an inlet. The plunger has a closed proximal end connected to an actuator and a distal end with an outlet valve. The plunger also includes a sidewall with an opening that is in communication with the inlet of the housing. Fluid flows through the inlet and through the opening and into the plunger. When the plunger is retracted away from the discharge valve, the outlet valve of the plunger opens thereby providing fluid for the housing bore. As the plunger is moved towards the discharge valve, pressure in the housing bore increases thereby opening the discharge valve and permitting the pressurized fluid to exit through the outlet. | 05-08-2014 |
20140127037 | FLUID SUPPLY APPARATUS - A fluid supply apparatus which supplies a fluid to a medical apparatus includes: a pump mechanism including a first pump capable of carrying out a intake operation of a fluid and a feeding operation of the fluid, and a second pump capable of alternately carrying out a intake operation of the fluid and a feeding operation of the fluid; a flow passage which includes an elastic member and which communicates with the pumps and supplies the fluid to the medical apparatus; a pressure fluctuation detecting unit capable of detecting fluctuation in internal pressure in the flow passage; and a flow passage deforming unit which deforms the flow passage according to the fluctuation in the internal pressure. | 05-08-2014 |
20140127038 | Evacuating a Chamber - A method and apparatus for reducing undesirable noise generated by a vacuum pumping system. The vacuum system operates to reduce the pressure in a chamber to a first pressure value. The system then detects that the pressure at the vacuum pump system's inlet is about to change to a second higher pressure and, in response, the speed of a booster pump in the vacuum pump system is reduced below the rated speed for the pump. When the pressure at the vacuum pump's inlet is above the second pressure, the speed of the booster pump is increased to the rated speed. Thus, the booster pump is slowed down prior the pump system becoming exposed to a rapid increase in inlet pressure. | 05-08-2014 |
20140127039 | ALCOHOL FUEL-POWERED ELECTRIC PUMP AND SETTING METHOD FOR SAME - A setting method for an alcohol fuel-powered electric pump is used for an alcohol fuel-powered electric pump, wherein the operating voltage of the electric pump is set at 6-10.4 V and is used for an alcohol fuel-powered motor vehicle the output direct current operating voltage of which is 7 V-9 V or greater than 9 V but less than 10.4 V. The number of turns of the rotor coils of the drive motor of the alcohol fuel-powered electric pump is deliberately reduced by 15-50%. The setting method can greatly reduce the corrosion of the pump by electro-chemical reactions when operating, for example, a fuel pump with an operating voltage of 8-8.9 V can be employed, the operating life thereof can fully meet the usage requirement of a generator and yet the drawback of blocked filters and oil nozzles can essentially be eliminated. | 05-08-2014 |
20140127040 | SINGLE-PHASE PERMANENT MAGNET ROTOR ELECTRIC WATER PUMP ONLY ROTATING IN RIGHT DIRECTION AND ITS REALIZATION METHOD - Disclosed are a single-phase permanent magnet rotor electric pump only rotating in a right direction and its realization method. The method comprises the following steps: controlling the size of a water chamber within a water pump body such that a space volume of the water chamber is 3 times or more than that of a space enclosed by each blade of an inner arc water impeller during rotation, and the diameter of the water chamber is 1.2 times or more than that of the water impeller at its common axis; designing the water pump body such that a portion of an inner wall of a water outlet pipe away from the central axis of the water chamber is parallelly deflected outward in a distance Δ from a tangent of the water chamber inner wall, thereby establishing a step structure; selecting a single-phase permanent magnet rotor or a proper torque to drive the arc water impeller within the water pump body, and limiting the fluctuation range of power supply voltage, thus ensuring that electric water pump rotates only in a right rotation direction and against the bending direction of the individual water blade. This method enables the water pump to rotate in the right direction under single-phase AC power supply condition where the fluctuation is up to 20% of the rated voltage. | 05-08-2014 |
20140134001 | FLUID SUPPLY APPARATUS - A fluid supply apparatus which supplies fluid to a medical apparatus includes: a pump mechanism including a first pump capable of a suction operation of the fluid after a feeding operation of the fluid, and a second pump capable of a suction operation of the fluid during the feeding operation and a feeding operation of the fluid during the suction operation; a flow path which includes an elastic member and which communicates with the first pump and the second pump and supplies the fluid to the medical apparatus; and a flow path deforming unit which deforms a part of the flow path. The flow path deforming unit starts first deformation of the flow path before the first pump switches from the feeding operation to the suction operation, and completes the first deformation and starts second deformation of the flow path during the feeding operation by the second pump. | 05-15-2014 |
20140134002 | MICROFLUIDIC PERISTALTIC PUMP, METHOD AND PUMPING SYSTEM - A microfluidic peristaltic pump has an inflow channel, a first pumping chamber, which is operatively connected to the inflow channel by a first channel, and a first membrane. The pump also has a second pumping chamber, which is operatively connected to the inflow channel by a second channel, and a second membrane. A fluidic resistance of the first channel is different from a fluidic resistance of the second channel, and each channel is configured to realize a throttling function, such that the first and second membranes are deflected in a time sequence when a pressure is applied in the inflow channel, to realize a pumping function. | 05-15-2014 |
20140134003 | Fluid Pump and Method of Pumping a Fluid - Embodiments of the invention provide dry gaseous fluid pump apparatus comprising: a fluid inlet and a fluid outlet; at least one pump body having an internal wall defining an internal pump chamber thereof; a compression member provided within the pump chamber; and valve means being operable selectively to allow fluid to be drawn from the fluid inlet and into the pump chamber when at least a portion of the compression member is translated in a first direction and to be exhausted from the pump chamber through the fluid outlet when said at least a portion of the compression member is translated in a second direction opposite the first, the valve means being arranged to be actuated by actuator means under the control of control means to perform at least one selected from amongst the functions of allowing fluid to be drawn from the fluid inlet into the pump chamber and allowing fluid to be exhausted from the pump chamber through the fluid outlet, the apparatus comprising a linear drive assembly operable to drive the at least a portion of the compression member to and fro within the pump chamber. | 05-15-2014 |
20140134004 | control device for an electrical vacuum pump and method for activating an electrical vacuum pump - A control device for an electrical vacuum pump includes: a determination unit designed for the purpose of detecting an operating parameter of the electrical vacuum pump, which is dependent on an operating duration of the electrical vacuum pump, and detecting a controlled variable for the electrical vacuum pump, a switching unit designed for the purpose of activating or deactivating the electrical vacuum pump as a function of a comparison of the controlled variable to at least one setpoint value, and a regulating unit designed for the purpose of changing the at least one setpoint value of the controlled variable as a function of the operating parameter. | 05-15-2014 |
20140134005 | METHOD FOR CONTROLLING A PUMP - A method for automatic mutual alternation between an arbitrary number of pumps by the control of each individual pump, which makes use of a start condition for a state change from an inactive state of the pump into an active state of the pump to be performed, as well as makes use of a stop condition for a state change from the active state into the inactive state to be performed. The method includes a sub method (Find start condition) that includes the step of, after a predetermined stage, arbitrarily changing the start condition of the individual pump within predetermined limits. | 05-15-2014 |
20140147291 | RECIPROCATING PUMP ASSEMBLY AND METHOD THEREOF - A reciprocating pump assembly including a first fluid assembly; a second fluid assembly; and, a power assembly operable by a prime mover. A prime mover including one of an engine and a motor. The power assembly interposed between and shared by the first fluid assembly and the second fluid assembly. The power assembly including at least one rotatable crankshaft operating the first and second fluid assemblies. Also included is a method of pumping fluid for a downhole operation. | 05-29-2014 |
20140147292 | Membrane Pump and Method for Adjusting Same - The present invention concerns a pump adjusting method and a membrane pump having a pumping chamber, a pressure and a suction connection, wherein the pressure and the suction connections are connected to the pumping chamber, a hydraulic chamber, wherein the pumping chamber and hydraulic chamber are separated from each other by a membrane, wherein a pulsating working fluid pressure can be applied to the hydraulic chamber which can be filled with a working fluid, wherein the membrane is moved between a first and second chamber positions of different volumes, wherein the chamber is connected to a working fluid reservoir, wherein the membrane comprises exchangeable spring elements exerting different forces on the membrane. The force which is exerted by the spring element on the membrane in the direction of the second position can be adjusted. | 05-29-2014 |
20140147293 | HYDRAULIC MACHINE WITH ELECTRONICALLY CONTROLLED VALVES - A hydraulic machine includes a number of piston/cylinder units which are each controlled by valves positioned upstream and downstream. The valves are in turn activated by an electronic regulator to switch the hydraulic machine selectively into a pump operating mode and a motor operating mode. The regulator selectively switches the individual piston/cylinder units or unit groups separately from one another into individually selectable operating modes as a function of certain regulating variables. | 05-29-2014 |
20140147294 | VARIABLE CAPACITY COMPRESSOR WITH LINE-START BRUSHLESS PERMANENT MAGNET MOTOR - A variable capacity compressor assembly ( | 05-29-2014 |
20140147295 | CONFIGURATION AND PROCESS FOR COMPRESSING A GAS - The invention is directed to a configuration for compressing a gas comprising (i) a reciprocating compressor ( | 05-29-2014 |
20140154098 | COOLING A DRUM PUMP MOTOR AND/OR BATTERY - A power tool that includes a motor sub-assembly, one or more batteries, and a cooling fan. The motor sub-assembly includes a motor and a motor fan. The one or more batteries are configured to provide power to the motor. The cooling fan is disposed vertically above the motor sub-assembly and the one or more batteries during operation of the power tool, where the cooling fan is configured to draw air in an upwards direction through the cooling fan, thereby dissipating heat from the motor and/or the one or more batteries, and where the upwards direction is the same a free convection direction associated with a density difference between hot air radiating from the motor and/or one or more batteries and surrounding cooler air. | 06-05-2014 |
20140154099 | PUMPING SYSTEM WITH ENERGY RECOVERY AND REVERSE OSMOSIS SYSTEM - A liquid pumping system comprises a plurality of liquid pumps and a hydraulic drive unit. Each liquid pump is driven by a separate hydraulic cylinder. The hydraulic cylinders are powered by a shared hydraulic pump through a valve set. A valve set controller is configured to operate the valve set. A liquid pumping process comprises distributing an initial flow of pressurized hydraulic fluid between the hydraulic cylinders. The hydraulic cylinders move through a cycle in a phased relationship to provide a constant sum of flow rates from the liquid pumps. A membrane filtration system combines the liquid pumping system with a membrane unit. In a water treating process, feed water is pumped through the membrane unit. Brine from the membrane unit is returned to each liquid pump while that liquid pump is feeding water to the membrane unit. | 06-05-2014 |
20140154100 | FUEL PUMP WITH METERING VALVE - A method for operating a fuel pump is provided. The method may include decreasing a pump chamber pressure, passively opening a metering valve coupled to a pump chamber in response to the decreasing, and while the metering valve is open, generating a rotational output via a motor, transferring the rotational output into an actuation force applied to the metering valve via a metering valve actuation device, and inhibiting the metering valve from closing via sustaining application of the actuation force. | 06-05-2014 |
20140154101 | METHOD AND APPARATUS TO CONTROL WATER MIGRATION INTO ELECTRICAL SUBMERSIBLE PUMP MOTORS - A seal assembly for an electrical submersible pumping system that communicates downhole pressure to a pump motor and seals wellbore fluids from the motor. The seal assembly includes a chamber circumscribing a pump shaft and a bladder in the chamber. The outer surface of the bladder is in fluid communication with the wellbore fluid. The inside of the bladder contains dielectric fluid that is ported to the pump motor in an annulus between the pump shaft and a sleeve. A water absorbing elastomer is disposed inside of the bladder for absorbing water that may migrate into the bladder from the wellbore. | 06-05-2014 |
20140154102 | CIRCULATING DIELECTRIC OIL COOLING SYSTEM FOR CANNED BEARINGS AND CANNED ELECTRONICS - A cooling system for a rotating machine, such as a centrifugal compressor. Specifically, the cooling system may be configured to cool radial and axial magnetic bearings in the rotating machine and the bearing control system that controls said bearings. The cooling system includes canned magnetic radial bearings on each end of the rotor and a canned bearing control system. The canned bearings and canned bearing control system may be filled with a dielectric cooling fluid and in fluid communication with each other via sealed conduits. Accordingly, the radial magnetic bearings and the bearing control system may be entirely immersed in the dielectric cooling fluid to regulate heat generation. An axial magnetic bearing may also be canned and fluidly coupled to the cooling system to immerse the axial magnetic bearing in the dielectric cooling fluid. | 06-05-2014 |
20140154103 | AIR MOTOR HAVING A PROGRAMMABLE LOGIC CONTROLLER INTERFACE AND A METHOD OF RETROFITTING AN AIR MOTOR - A pump assembly having an air motor includes a valve connected to a motive fluid inlet of the air motor. The valve shifts between a first position, in which a flow of motive fluid is directed into a pilot port, through a two way pilot conduit and into a pilot chamber portion, and a second position, in which the flow of motive fluid is inhibited from flowing into the pilot port through the two way pilot conduit and into the pilot chamber portion, and in which fluid in the pilot chamber portion flows out through the two way pilot conduit and is directed by the valve to exhaust. The valve is connected to a programmable logic controller, so that the valve is shifted between the first position and the second position in response to the programmable logic controller. | 06-05-2014 |
20140161632 | SELF-CONTAINED FLUID-POWER SERVOMECHANISM - An example method of using a servomechanism can include controlling a reversible positive displacement pump that is located in a first chamber of a housing to push a fluid, via a first passage in the housing, against one side of a vane that is rotably disposed in a second chamber of a housing to rotate an output shaft that is coupled to the vane and controlling the reversible positive displacement pump to push a fluid, via a second passage in the housing, against another side of a vane to reverse rotation of the output shaft. | 06-12-2014 |
20140161633 | DISTRIBUTED THRUSTERS DRIVEN GAS COMPRESSOR - A distributed thruster based gas compressor, the compressor including an enclosed housing having an inlet aperture exposed to a source of ambient gas; at least one pressure producing device formed over the inlet aperture and adapted to produce a pressure, the pressure producing device being formed of distributed thrusters, such as NMSET; a control unit coupled to the first pressure producing device; and wherein the control unit controls the pressure producing device to produce the pressure to cause the ambient gas to be compressed in the housing. | 06-12-2014 |
20140161634 | DIRECT INJECTION PUMP CONTROL STRATEGY FOR NOISE REDUCTION - A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity. | 06-12-2014 |
20140161635 | ROTARY CAM ACTUATED LINEAR PERISTALTIC PUMP - A rotary cam actuated linear peristaltic pump includes a plurality of cams which actuate a plurality of pistons. The cams apply a force to the piston by way of a lifter for providing mechanical advantage so that a smaller motor may be used to rotate the cam. Each piston of a plurality of pistons is sequentially raised to the extended position to squeeze a tube so as to flow fluid through the tube. | 06-12-2014 |
20140161636 | HYDRO-PNEUMATIC SYSTEM WITH PRESSURE LIMITING VALVE - A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the valve has spring, hydraulic and pneumatic sections, with an unbalanced area of the hydraulic section in a sealed pressure chamber of a cartridge that is part of the valve housing. The pneumatic section extends out one end of the cartridge to fill a bore between the air inlet and outlet ports when the pneumatic section is extended, and allow air to pass when it is retracted. | 06-12-2014 |
20140169987 | Dielectric Sensor Arrangement and Method for Swashplate Angular Position Detection - Swashplate angle sensing arrangement for a variable displacement pump a nonrotating swashplate and a rotating pump barrel includes a dielectric sensor in a swashplate angle sensing arrangement. The arrangement includes a sensing probe coupled to the casing, a sensor target coupled to the swashplate, and a controller configured to direct an alternating current through the sensing probe to establish an impedance between the probe and the target, and to determine voltage across the probe. The controller is further adapted to determine the angle of the swashplate relative to the casing based on the determined voltage. | 06-19-2014 |
20140169988 | Rotating Flexible Joint for Use in Submersible Pumping Systems - An electrical submersible pumping system (ESP) for pumping fluids from a wellbore is made of segments, which include a motor, a seal section, a pump, and a shaft assembly connected to an output of the motor drives the pump. The motor, seal section, and pump are elongate members and coupled end to end to one another by housing connectors and shaft connectors. At least one of the housing connectors and shaft connectors have portions that are pivotable with other portions, so that adjacent segments of the ESP system can pivot with respect to one another. The housing connector can be a ball and socket assembly, where the ball fits within a spherically shaped chamber in the socket assembly. Opposing ends of the housing connector can mount to respective segments by threads or bolt flanges. The pivotal shaft connector may be a universal joint. | 06-19-2014 |
20140178210 | Tubing inserted balance pump with internal fluid passageway - Pump assemblies for use with a subsurface fluid reservoir include an upper portion connected to a fluid conduit extending to the surface, a lower portion connected to the upper portion and in fluid communication with a fluid reservoir of the wellbore, and a plunger assembly movably located within the upper and lower portion of the pump assembly. As the fluid pressure within the tubing string, fluidly isolated from the fluid conduit, increases, fluid is forced into the pump assembly moving the plunger assembly upwell to draw fluid into the pump and forces fluid into the fluid conduit. As the fluid pressure within the tubing string decreases, movement of the plunger assembly forces fluid from the lower portion into the upper portion through a fluid passageway extending through the plunger assembly. | 06-26-2014 |
20140178211 | METHOD FOR OPERATING A WASTEWATER PUMPING STATION - A method is provided for operating a wastewater pumping station of a wastewater pumping network. The pumping station includes a pump, that starts pumping if a level of a wastewater in a tank exceeds a first wastewater level, and the pump stops pumping if the level of the wastewater in the tank drops below a second level. The method includes determining a magnitude of a parameter (P | 06-26-2014 |
20140178212 | Submersible Pump Motor Cooling Through External Oil Circulation - An electrical submersible pump motor has motor oil flowing through external circulation tubes for cooling the motor. A substantial portion of the exterior of each tube is submerged in and exposed to wellbore fluid. Heat is transferred from the motor to the motor oil, and then circulated through the external circulation tubes to conduct heat to the wellbore fluid. Internal or external motor oil pumps may be used to propel the motor oil through the circulation tubes. Guards or baffles may be used to protect the circulation tubes and to influence the flow of production fluid over the circulation tubes. | 06-26-2014 |
20140193276 | MULTISTAGE AIR PUMP WITH ADJUSTABLE INTER-STAGE MASS TRANSFER AND INTER-STAGE SORBENT CARTRIDGE - A hand operated reciprocating multistage pump has an upstream stage and a downstream stage, each stage having a compression chamber. A regulating valve controls a mass of compressed air passing from the upstream stage to the downstream stage. By controlling the mass of compressed air passing to the downstream stage, the required force to operate the compression chamber of the downstream stage can be controlled. A sorbent cartridge can be located between the upstream stage and the downstream stage, such that the partially compressed air passes through a sorbent such as a desiccant before being compressed in the compression chamber of the downstream stage. | 07-10-2014 |
20140193277 | METHOD FOR PREVENTING PACK-OUT IN PUMPING SYSTEM - A method for preventing pack-out in a system for pumping hybrid hot-melt material comprises monitoring activity of a pump that pumps hybrid hot-melt material, shutting off a heater that melts pumped hybrid hot-melt material at an inactivity threshold level, and relieving pump pressure. | 07-10-2014 |
20140199180 | Universal Pump Component Control and Testing System and Method - A system and method that provides an electronic controller module (ECM) that is bi-directionally communicable with a system monitor via a network to control and test pump components. Communication between the ECM and the system monitor may include receiving an operate command, receiving a report command, transmitting status, testing the pump components, monitoring sensors, and otherwise controlling the ECM via the system monitor. The ECM may communicate via the Internet, which may be facilitated by a router. The system monitor may provide advanced analytics, monitoring, maintenance, and reporting. The pump components may include one or more primary pumps and a backup pump, which may be battery operated. The sensor may include a float and sensor for a motor of the pump. The motor may be located in a sump. The ECM may perform timed tests. | 07-17-2014 |
20140199181 | METHOD FOR ACCURATE AND LOW-CONSUMPTION MEMS MICROPUMP ACTUATION AND DEVICE FOR CARRYING OUT SAID METHOD - The present invention describes the improvements due to alternated actuation cycles to reduce the delivery errors related to the pumping chamber elasticity, the actuator relaxation or hysteresis. The method actuates a pumping device with an optimal driving voltage profile, wherein the pumping device comprises a pumping chamber including a pumping membrane and a voltage controlled actuator connected to said membrane; the movement of said membrane being defined by three positions, namely a rest, a bottom and a top position. The method includes the actuation of the membrane with a pumping pattern including at least two different cycles: Cycle A: rest-bottom-rest-top-rest Cycle B: rest-top-rest-bottom-rest. The invention also relates to a device to carry out the method. | 07-17-2014 |
20140205467 | IMPELLER POSITION COMPENSATION USING FIELD ORIENTED CONTROL - A centrifugal pump system having an impeller rotating with first and second magnetic structures on opposite surfaces. A levitation magnetic structure is disposed at a first end of a pump housing having a levitating magnetic field for axially attracting the first magnetic structure. A multiphase magnetic stator at a second end of the pump housing generates a rotating magnetic field for axially and rotationally attracting the second magnetic structure. A commutator circuit provides a plurality of phase voltages to the stator. A sensing circuit determines respective phase currents. A controller calculates successive commanded values for the phase voltages in response to the determined phase currents and a variable commutation angle. The angle is selected to correspond to an axial attractive force of the stator that maintains a levitation of the impeller at a centered position within the pumping chamber. | 07-24-2014 |
20140205468 | TRANSFER CASE UTILIZING AN ON-DEMAND CENTRIFUGALLY GOVERNED HYDRAULIC POWER SUPPLY TO PERFORM BOTH RANGE SHIFT AND ON-DEMAND FOUR WHEEL DRIVE - A control system ( | 07-24-2014 |
20140205469 | PUMP AND METHOD OF POSITIONING A PUMP - The invention relates to a method of positioning a pump in a well in order to create artificial lift. The method involves frictionally engaging a portion of the pump with a portion of the well, such that the pump is retained in a starting position. In order to progress the pump into the well, the pressure differential across the pump is increased, and then, when the pump is in a finishing position, the pressure differential across the pump is reduced such that the pump is once again retained in the finishing position by the frictional engagement between the pump and the well. A pump for use in the above method of deployment is also provided. | 07-24-2014 |
20140212299 | PROPULSION ENGINE - A propulsion engine for an aircraft, the propulsion engine comprising: one or more fans ( | 07-31-2014 |
20140212300 | Hydrostatic Power Unit As Hydraulic Starter Of An Internal Combustion Engine - A variable displacement hydrostatic power unit ( | 07-31-2014 |
20140219824 | PUMP SYSTEM AND METHOD THEREOF - A pump system includes a plurality of pump assemblies. Each pump assembly having a power assembly and a fluid assembly. Each power assembly of each pump assembly includes a crankshaft, an input connection, and an output connection. The input connection of one pump assembly among the plurality of pump assemblies connected to the output connection of one pump assembly among the plurality of pump assemblies; at least one lead pump assembly within the plurality of pump assemblies configured to be connected to a prime mover commonly driving the plurality of pump assemblies. Also included is a method of pumping pressurized fluid to a site. | 08-07-2014 |
20140219825 | HIGH TEMPERATURE MOTOR SEAL FOR ARTIFICIAL LIFT SYSTEM - A thermal compensator for a motor seal, includes: a guide tube for receiving a shaft of the motor seal; a metallic bag disposed around the guide tube and having an expansion profile formed in at least a portion thereof to accommodate radial and circumferential expansion of the metallic bag; a pair of flanges attached to opposite ends of the metallic bag; and a pair of adapters fastened to the respective flanges and receiving respective ends of the guide tube. | 08-07-2014 |
20140219826 | FUEL SYSTEM USING DUAL PRESSURE HI-SPEED CENTRIFUGAL PUMP ARRANGEMENT - An improved system for providing fuel uses a centrifugal pump arrangement that provides dual pressure. The dual pressure pump assembly includes a centrifugal pump for supplying pressurized fluid to an associated downstream use, and an auxiliary pump stage for selectively boosting pressure of delivered flow. The auxiliary pump stage in one preferred arrangement includes a start and turbo-pump stage where inlet fuel from an associated airframe is fed to a centrifugal pump portion of the turbo-pump that outlets to an inlet of the centrifugal pump. The auxiliary pump stage in another arrangement includes a recirculation passage communicating with the outlet of the high-speed centrifugal pump and the turbine, and the outlets from the start and turbo-pump stage feed an inlet of the high speed centrifugal pump, and a flow valve is disposed in the recirculation passage. In still another arrangement, the auxiliary pump stage includes an electric motor for start-up. | 08-07-2014 |
20140219827 | Cranked Rod Pump Method - An improved apparatus and method are disclosed, for pumping fluids, such as water and/or hydrocarbons, from a subterranean formation or reservoir, through use of a cranked rod pumping (CRP) apparatus for imparting reciprocating substantially vertical motion to a rod of a sucker-rod pump having a pump stroke. The CRP apparatus includes a motor driven cranked mechanical actuator arrangement. The cranked mechanical actuator arrangement includes a substantially vertically moveable member attached to the rod of the sucker-rod pump for imparting and controlling vertical motion of the rod of the sucker-rod pump. The actuator arrangement may include pneumatic counterbalancing. | 08-07-2014 |
20140234122 | ROD-PUMPING SYSTEM - A rod-pumping system is provided. In one embodiment, the system includes a downhole pump positioned in a well and coupled to a well string, such as a sucker-rod string. The system also includes a first hydraulic actuator arranged with respect to the well string so as to enable the first hydraulic actuator to move the well string within the well. The first hydraulic actuator is connected in fluid communication with a second hydraulic actuator. A control pump is connected to both the first and second hydraulic actuators to enable the control pump to alternate between pumping control fluid to the first hydraulic actuator to cause the well string to move in a first direction within the well and pumping control fluid to the second hydraulic actuator to cause the well string to move in an opposite, second direction within the well. Additional systems, devices, and methods are also disclosed. | 08-21-2014 |
20140234123 | SYSTEMS AND METHODS FOR ENERGY STORAGE AND RECOVERY USING RAPID ISOTHERMAL GAS EXPANSION AND COMPRESSION - The invention relates to systems and methods for rapidly and isothermally expanding and compressing gas in energy storage and recovery systems that use open-air hydraulic-pneumatic cylinder assemblies, such as an accumulator and an intensifier in communication with a high-pressure gas storage reservoir on a gas-side of the circuits and a combination fluid motor/pump, coupled to a combination electric generator/motor on the fluid side of the circuits. The systems use heat transfer subsystems in communication with at least one of the cylinder assemblies or reservoir to thermally condition the gas being expanded or compressed. | 08-21-2014 |
20140234124 | DRIVE TRAIN COOLING ARRANGEMENT AND METHOD FOR OPERATING SAME - A drive train cooling arrangement for motor vehicles has a first cooling circuit and a second cooling circuit and has a pump arrangement, by means of which coolant can be fed to the first and the second cooling circuit. The pump arrangement has a bidirectional pump, which has a first pump port and a second pump port and which can be driven by a pump electric motor. The first pump port is connected to the first cooling circuit, wherein the second pump port is connected to the second cooling circuit. A coolant volume flow which is provided for at least one of the first and the second cooling circuit can be adjusted by changing the rotational speed of the pump electric motor. | 08-21-2014 |
20140234125 | SYRINGELESS FILTER DEVICE COMPRESSOR - The disclosure relates to an in-hand operable compressor | 08-21-2014 |
20140241904 | STARTUP SEQUENCE FOR CENTRIFUGAL PUMP WITH LEVITATED IMPELLER - A centrifugal pump system having an impeller rotating with first and second magnetic structures on opposite surfaces. A levitation magnetic structure is disposed at a first end of a pump housing having a levitating magnetic field for axially attracting the first magnetic structure. A multiphase magnetic stator at a second end of the pump housing generates a rotating magnetic field for axially and rotationally attracting the second magnetic structure. A commutator circuit provides a plurality of phase voltages to the stator. A sensing circuit determines respective phase currents. A controller calculates successive commanded values for the phase voltages during a running state in response to a desired impeller speed and an actual impeller phase. The controller has a startup interval during which the commanded values of the phase voltages are determined in response to a pseudo impeller phase and in response to a ramping gain factor. | 08-28-2014 |
20140241905 | Positive Displacement Pump with Pressure Compensating Calibration - Illustrative embodiments of positive displacement pumps utilizing pressure compensating calibration, as well as related systems and methods, are disclosed. In one illustrative embodiment, a method of operating a positive displacement pump includes sensing, with a pressure sensor disposed at a fluid outlet of the positive displacement pump, a back pressure at the fluid outlet, transmitting a pressure signal associated with the sensed back pressure from the pressure sensor to a controller of the positive displacement pump, and identifying, on the controller, a volume of fluid pumped by the positive displacement pump using the pressure signal. | 08-28-2014 |
20140241906 | AUXILIARY POWER UNITS (APUs) AND METHODS AND SYSTEMS FOR ACTIVATION AND DEACTIVATION OF A LOAD COMPRESSOR THEREIN - Auxiliary power units and methods and systems for activation and deactivation of a load compressor therein are provided. Auxiliary power unit includes the load compressor having an impeller, APU engine, coupling member, pre-spinning means, and APU controller. APU engine is adapted to be mechanically engaged to load compressor to drive load compressor to provide pneumatic power and to be disengaged when the need for pneumatic power ceases. Coupling member couples load compressor and APU engine and is configured to be controllably moved between an engaged position in which the APU engine is mechanically engaged with the load compressor, and a disengaged position, in which the APU engine is disengaged from the load compressor. APU controller is operably coupled to load compressor, APU engine, coupling member, and pre-spinning means and adapted to receive and be responsive to rotational speed signals for controlling movement of coupling member between engaged and disengaged positions. | 08-28-2014 |
20140241907 | HIGH PRESSURE WATER INJECTION PUMP SYSTEM - The invention provides a high pressure water injection pump system, comprising at least two water injection pump units connected in series, each pump unit comprising a motor in a motor compartment operatively connected to drive a pump in a pump compartment, distinctive in that at least the pump units following the first pump comprises a choke compartment arranged between the pump and motor compartments, a leakage seal arranged between the pump and choke compartment, the choke compartment having an outlet; and the motor compartment of at least the pump units following the first pump unit is dimensioned according to a lower pressure class than the operatively connected pump compartment. | 08-28-2014 |
20140248159 | METHODS AND SYSTEMS FOR DOSING CONTROL IN AN AUTOMATED FLUID DELIVERY SYSTEM - Methods and systems for dispensing a fluid using an automated fluid delivery system are disclosed. A pump may be configured to force an aliquot of fluid into a fluid delivery channel. A processor may receive values of a property for the aliquot and the source of the aliquot. The processor may use the values to determine the volume of the aliquot. The determined volume is compared by the processor against an expected volume to establish the amount of fluid being pumped by the pump per unit, such as time or revolutions. The processor controls operation of the pump to dispense a predetermined dose based on the amount of fluid being pumped by the pump per unit. | 09-04-2014 |
20140248160 | POSITIVE DISPLACEMENT PUMP AND OPERATING METHOD THEREOF - A positive displacement pump includes a drive unit and a pump unit. The pump unit comprises a plurality of working chambers, a plurality of displacement elements, and at least three cylinders. The pump unit is configured to be double-acting. | 09-04-2014 |
20140255214 | FRACTURING PUMP ASSEMBLY AND METHOD THEREOF - A fracturing pump assembly includes an intensifier including a hydraulic cylinder, a compression member arranged within the hydraulic cylinder and a rotatable member, wherein the compression member is linearly actuated within the hydraulic cylinder by rotation of the rotatable member. | 09-11-2014 |
20140255215 | INTELLIGENT PUMP MONITORING AND CONTROL SYSTEM - A system and method for monitoring and controlling a pump are disclosed. The method defines processing targets, derive a first actuator control signal Yc from the processing targets, and derive actual operating parameters. The method may further include the steps of comparing the actual operating parameters to predefined system and pump limits to determine a second actuator control signal Y′c, comparing the actual operating parameters to predefined fluid limits to determine a third actuator control signal Y″c, comparing the actual operating parameters to predefined normal processing limits to determine a fourth actuator control signal Y′″c, and comparing the actual operating parameters to at least one predefined abnormal processing limit to determine a fifth actuator control signal Y″″c. The method may further include determining which of the actuator control signals is a most conservative actuator control signal, and driving the pump in accordance with the most conservative actuator control signal. | 09-11-2014 |
20140255216 | PUMP SYSTEM - A pump system for a water supply mains has at least one pump device, a pressure detecting sensor at the pressure side of the pump device, a flow detecting sensor of the pump device, several pressure sensor units (D) remote arranged remotely from the pump device in different part regions of the mains, and a pump control device. The control device includes a model formation module designed in each case to produce a model (A) representing pressure loss from the pressure sensor to the position of the respective pressure sensor unit (D), based on several pressure measured values of at least two pressure sensor units (D) for the at least two associated part regions. The control device is designed for regulation of the pump device based on produced models (A), as well as to a corresponding method for regulation of a pump device in a water supply mains. | 09-11-2014 |
20140271240 | Multipurpose Gravity Air Compressor - A multipurpose gravity air compressor employs a piston ( | 09-18-2014 |
20140271241 | SINGLE-CYLINDER TREADLE PUMP - A human-powered positive-displacement single dual-action cylinder treadle pump for use in pumping and distributing water from wells and other water sources, as well as methods of manufacturing and operating such a pump. The pump offers rural farmers a portable device for pumping water for use in irrigating fields and crops that is powerful, low-cost, modular and portable. The modularity of the pump allows for easy access to any of the components of the pump should they require maintenance, repair or replacement. | 09-18-2014 |
20140271242 | VIBRATION/NOISE MANAGEMENT IN A SCROLL COMPRESSOR - A scroll pump isolates vibrations of a pump head/motor assembly of the pump from the exterior of the pump and thus, suppresses the production of airborne noise. The pump includes a sound-muffling enclosure surrounding the pump head/motor assembly, feet supporting the enclosure, and elastic vibration isolators. The pump head/motor assembly is fixed to the tops of the vibration isolators, and the sound-muffling enclosure is fixed to the vibration isolators at the bottoms of the isolators. The scroll pump also has a locking system by which motion of the pump head/motor assembly relative to the sound-muffling enclosure can be limited or prevented, and by which the sound-muffling enclosure can be hard-mounted to a support surface independently of the feet. | 09-18-2014 |
20140271243 | PUMP STAND WITH IMPROVED PUMP CONTROL - Integrated, stand-alone, multiple-purpose pump stands are provided for controlled pumping of different liquids from a stand-mounted tank to a downstream use location, e.g., a seed treating device. The pump stands are equipped with an operating assembly including a liquid tank, a powered pump, a liquid flow line equipped with a flow meter from the tank and pump to the use location, and a programmable digital control device. During operation, the control device serves to approach and maintain the flow rate from the pump stand at or about a desired setpoint flow rate. | 09-18-2014 |
20140271244 | Radial hydraulic motor for a hydraulic hybrid vehicle - A radial hydraulic pump/motor for use in place of a mechanical transmission for a hydraulic hybrid vehicle is described. Means for disengaging and reengaging individual working pistons are provided, allowing partial or zero effective displacement. Methods for using the radial pump/motor to supplement power from other pump/motors for the vehicle are also described. | 09-18-2014 |
20140271245 | Biflex film valves - Disclosed is a one-way valve wherein an affixed flexible film device, a downstream edge control means, a channel surface and the motive force of a controlled directional pressurized fluid flow automatically permit forward fluid flow yet check reverse fluid backflow. | 09-18-2014 |
20140271246 | COOPERATION OF PLATEN AND PUMP CASSETTE FOR PUMP DEVICE - A pumping mechanism includes a housing containing the pumping mechanism, the housing defining a seat configured to receive a pump cassette having a fluid lumen that can be acted upon by the pumping mechanism so as to pump fluid through the fluid lumen of the pump cassette. A platen pad is movably attached to the housing mechanism, wherein the platen pad can movably adjust in position relative to the pump cassette as the pump cassette is secured in the seat of the housing. | 09-18-2014 |
20140271247 | INFUSION PUMP CONFIGURED TO ENGAGE A SENSOR WITH TUBING - A pump device includes a pumping mechanism and a housing containing the pumping mechanism. A structure on a door of the housing is configured to urge the tube of a pump set toward engagement with a sensor as the door is closed with the pump set is mounted housing. | 09-18-2014 |
20140271248 | Compressor Device and Method - A compressor includes a first piston, a second piston, and a crank. A first case chamber is defined by a lower surface of a first piston head, a portion of a first cylinder surface disposed below the lower surface of the first piston head, and a first case surface. A second case chamber is defined by a lower surface of a second piston head, a portion of a second cylinder surface disposed below the lower surface of the second piston head, and a second case surface. The first case chamber and the second case chamber are fluidly isolated from one another. The crank is to reciprocate the first piston head and the second piston head up and down. | 09-18-2014 |
20140271249 | ACOUSTIC PUMPS AND SYSTEMS - A microfluidics acoustic pump system includes a flow passage configured to carry a fluid from one location to another, a selectively vibrating flow generator having a sharp edge, and a driving device configured to vibrate one of the flow generator and the flow passage to create a streaming fluid flow in a direction away from the sharp edge through the flow passage. | 09-18-2014 |
20140271250 | Compression System and Method Having Co-Axial Flow Device - A system, including a compressor including a cylinder with a chamber, a first axial end portion, and a second axial end portion, and a piston in the chamber of the cylinder, the piston is configured to reciprocate along a cylinder axis between the first and second axial end portions, and a co-axial flow device coupled to compressor, the co-axial flow device includes a first wall disposed about a first passage along an axis, a second passage disposed about the first wall along the axis, and a second wall disposed about the second passage along the axis, the first passage includes a first axial opening in fluid communication with the chamber while the piston moves in a first axial direction, and the second passage includes a second axial opening in fluid communication with the chamber while the piston moves in a second axial direction opposite from the first axial direction. | 09-18-2014 |
20140271251 | SYSTEMS AND METHODS FOR OCULAR SURGERY - Ocular surgery may be performed by a variety of systems, processes, and techniques. In certain implementations, a system and a process for ocular surgery may include the ability to draw ocular fluid into a channel of a hand-held pump system and separate the fluid into multiple compressible channels to create multiple flows. The system and the process may also include the ability to peristaltically pump the fluid through the compressible channels. | 09-18-2014 |
20140271252 | PUMP HAVING AN AUTOMATED GAS REMOVAL AND FLUID RECOVERY SYSTEM AND METHOD - A precision pump system having a motor driver for accurately and repeatedly delivering process fluid, (e.g., photo chemicals) using a pumping fluid with minimal process fluid loss to a fabrication process and whereby the motor driver can be easily and quickly replaced without interrupting the fluid flow path. This is accomplished with the use of a process fluid reservoir and a pumping fluid reservoir that are associated with the pump, either integrated with the pump or closely adjacent. In addition, this precision pump system can be remotely monitored, viewed and controlled over the Internet. In addition, trapped process fluid within a downstream filtering block can be recirculated to the process fluid reservoir when trapped gas in the filter is removed. Furthermore, a nitrogen gas source is connected to the process fluid reservoir via a valve in case a need to insert a gas is required. | 09-18-2014 |
20140271253 | Fire Pump Controller Configured to Control Pressure Maintenance in Sprinkler Systems - Example devices, systems, and methods disclosed herein relate to a controller configured to control pressure maintenance in a fire protection system. A controller may be configured to control a fire pump to provide a first level of water pressure and to control operation of a jockey pump that is coupled in parallel with the fire pump to provide a second level of water pressure that is less than the first level. The controller is further configured to receive, from a pressure sensor coupled to the fire protection system, an output representative of the water pressure. The controller is configured to provide instructions to initiate the jockey pump based on a pressure value associated with the output being below a first value, and to provide instructions to initiate the fire pump based on the pressure value being below a second value that is less than the first value. | 09-18-2014 |
20140271254 | LABOR SAVING DEVICE FOR USE WITH "T" HANDLED AIR PUMPS - A leverage device includes elongated body connected to a pivoting base, and a means for attaching the elongated body to the “T” handle of a pump used in filling air tanks. In use one securely connects the pivoting base to a stationary vertical surface, connects the attachment assembly to a pump, and repeatedly moves the elongated body in an up-and-down motion. This action moves the attached pump's “T” handle, thereby causing the pump's piston to move with decreased effort and increased speed over the conventional motion of pumping. In this manner a compressed air tank can be filled to approximately 3,000 psi using human power only. | 09-18-2014 |
20140271255 | PRESSURE ADJUSTMENT APPARATUS AND METHOD - A pressure adjustment apparatus including a pump, a selector valve coupled to the pump, and a chamber in selective fluid communication with the pump through the selector valve is disclosed. The pump includes a pump body that defines a variable volume therein, the pump body further defining a first aperture and a second aperture therethrough. The selector valve includes a first check valve disposed in a first fluid channel of a plurality of fluid channels, the first check valve being oriented to permit flow through the first fluid channel only in a first flow direction, the first flow direction being a flow direction out of the variable volume, and a second check valve disposed in a second fluid channel of the plurality of fluid channels, the second check valve being oriented to permit flow through the second fluid channel only in a second flow direction. | 09-18-2014 |
20140271256 | ROVING SUBMERSIBLE PUMP - A roving submersible pump arrangement for movement in a body of fluid is presented. The pump arrangement includes a submersible pump having an inlet and a discharge outlet and a buoyant transport device connected to the submersible pump. The buoyant transport device is operable to position the inlet of the submersible pump at a selected distance from a surface containing the body of fluid. | 09-18-2014 |
20140271257 | NATURAL GAS COMPRESSING AND REFUELING SYSTEM AND METHOD - A refueling system for natural gas users (e.g., natural gas vehicles) includes a two-stage compression system that compresses low-pressure gas in a natural gas supply line to compressed natural gas (CNG) pressure for use by a user. A single motor drives both a first stage rotary compressor and a rotary hydraulic pump that powers a second-stage liquid piston compressor. The motor, first stage compressor, and pump may be co-axially aligned. Booster vessels store compressed gas to augment the system's compressed gas delivery flow rate when desired. The booster vessels may be recharged with compressed gas when the system is not delivering gas to a user. Hydraulic liquid may be pumped into and out of the booster vessels during booster vessel discharge and recharge, respectively, to maintain a desired pressure within the vessels. | 09-18-2014 |
20140271258 | TEMPERATURE CONTROL FOR COMPRESSOR - According to at least one aspect of the present disclosure, an apparatus for cooling a coolant for a gas compressor includes a compressor to generate a flow of compressed gas, a dryer in fluid communication with the compressor, and a coolant circuit. The coolant circuit includes a accumulator to accumulate the coolant, a pump in fluid communication with the accumulator and the compressor to circulate the coolant through the coolant circuit, a first intercooler in fluid communication with the accumulator and the pump and structured to transfer heat from the coolant circuit to the compressed gas flow via the dryer, and a valve disposed between the accumulator and the first intercooler and structured to route at least a portion of the coolant through the first intercooler depending on a temperature of the coolant relative to prescribed low and high temperature limits. | 09-18-2014 |
20140271259 | METHOD OF COORDINATING OPERATION OF COMPRESSORS - A method for coordinating operation between at least two groups of compressors in a cooling circuit is disclosed. A first group of compressors forms part of a low temperature (LT) part of the cooling circuit and a second group of compressors forms part of a high temperature (MT) part of the cooling circuit. Each of the compressor groups comprises one or more compressors, and each of the compressor groups comprises a controller, the controllers being capable of exchanging signals. In the case that the LT compressor group needs one or more of the LT compressors to start operation, it is investigated whether or not one or more of the MT compressors is/are operating. If this is the case, one or more of the LT compressors is/are allowed to start operation. If it is not the case, the suction pressure in the MT part of the cooling circuit is established, e.g. measured, and compared to a lower and an upper limit of a neutral pressure zone, said neutral pressure zone lying within an operating pressure zone of the MT part of the cooling circuit. Finally, the MT compressors and the LT compressors are operated based on the comparing step. The cooling system may be a cascade system or a booster system. | 09-18-2014 |
20140286794 | SYSTEM, METHOD, AND APPARATUS FOR UTILIZING A PUMPING CASSETTE - The present invention involves, in some embodiments, systems and methods involving fluid handling apparatus for pumping fluid to and from a patient, which may include a reusable component and a disposable pumping cartridge. The reusable component may comprise a control chamber and a pressure transducer configured to measure a gas pressure associated with the control chamber, as well as a processor. The processor may be configured to supply the control chamber with a gas at a predetermined pressure, monitor the gas pressure associated within the control chamber with the pressure transducer over a predetermined period of time, and determine if the change in gas pressure associated within the control chamber exceeds a maximum allowable predetermined limit. | 09-25-2014 |
20140294604 | HYDRAULIC PUMP START SYSTEM AND METHOD - Embodiments are directed to powering a hydraulic motor pump by powering the hydraulic motor pump from a main bus when power is available from the main bus, powering the hydraulic motor pump from an auxiliary power unit starter motor controller during a start-up of the hydraulic motor pump when power from the main bus is unavailable, and powering the hydraulic motor pump from a generator different than the auxiliary power unit subsequent to starting-up the hydraulic motor pump. | 10-02-2014 |
20140294605 | METHODS AND SYSTEMS FOR MAINTAINING A HIGH VACUUM IN A VACUUM ENCLOSURE - A system for maintaining a high vacuum in a vacuum enclosure such as cryostat, for example, is described. The system includes a high-vacuum pump having an input that is connected to the cryostat and an output. A vacuum vessel is connected to the output of the high-vacuum pump. A second vacuum pump is connectable to the vacuum vessel. The system is operated such that the high-vacuum pump maintains the cryostat at a high vacuum and the second vacuum pump is periodically operated to maintain the pressure of the vacuum vessel below a threshold pressure. The second vacuum pump may be either permanently connected to, or removable from, the vacuum vessel. The vacuum vessel acts to maintain the output of the high-vacuum pump within a suitable pressure range. This removes the need for the output of the high-vacuum pump to be connected to a continuously operating, second-stage vacuum pump. Furthermore, the second vacuum pump is only required to be operated periodically in order to maintain the pressure in the vacuum vessel below the threshold pressure. | 10-02-2014 |
20140294606 | Automatic Fuel Additive Controller and Dispenser - An Automatic Fuel Additive Controller and Dispenser has been disclosed. In one implementation a pump is used to purge a hydrostatic sensing tube of liquid prior to measurement. | 10-02-2014 |
20140294607 | LIQUID TRANSPORTING APPARATUS AND LIQUID TRANSPORTING METHOD - An operation of a liquid transporting apparatus is controlled by communication using a controller, and the power consumption during communication standby is reduced. The liquid transporting apparatus includes a liquid storage section that stores a liquid; a body section that is connected to the liquid storage section when transporting the liquid; a body control section that controls an operation of a driving section having at least a part of function for transporting the liquid. The body control section determines whether the body section and the liquid storage section are connected. If it is determined that the body section and the liquid storage section are connected, the communication between the body control section and an external control section that performs instruction to control the operation of the driving section starts. | 10-02-2014 |
20140301865 | HYBRIDIZED COMPRESSOR - An air compressor includes a first compressor stage and at least one motor. The first compressor stage includes a first housing, a first drive plate, and a plurality of first pistons. The first drive plate is positioned in the first housing and includes an odd number of first lobes. The plurality of first pistons each contact the first drive plate at different locations relative to top dead center on the first lobes. The at least one motor is operable to rotate the first drive plate to move the plurality of first pistons to generate a volume of compressed air in the first housing. | 10-09-2014 |
20140301866 | DEVICE FOR DETECTING AND MEASURING THE ROTATION OF A PERISTALTIC CASSETTE - The invention relates to a device for detecting and identifying a peristaltic cassette which is provided with a rotary mechanism comprising rollers connected to a spacer ( | 10-09-2014 |
20140314584 | GAS COMPRESSOR AND ABRASION STATE DETERMINING METHOD - A gas compressor of the present invention includes a reciprocating member, an accommodation portion, and a sealing portion, and the accommodation portion includes a compression chamber that compresses a gas and a non-compression chamber that is separated from the compression chamber by the reciprocating member and the sealing portion. Further, since the compression chamber includes a suction line that suctions a hydrogen gas, a discharge line that discharges a compressed gas, a connection line that is connected to the accommodation portion and is used so that at least a part of a gas flows therethrough when a gas passing through the sealing portion from the compression chamber exists, a flowmeter that is provided in the connection line, and a determination unit that determines whether a flow amount measured by the flowmeter is equal to or larger than a predetermined threshold value, it is possible to easily determine the abrasion state of the sealing portion. | 10-23-2014 |
20140322033 | OFFSET VALVE BORE IN A RECIPROCATING PUMP - A fluid end | 10-30-2014 |
20140322034 | OFFSET VALVE BORE FOR A RECIPROCATING PUMP - A fluid end | 10-30-2014 |
20140322035 | DRIVE SYSTEM FOR SURFACE HYDRAULIC ACCUMULATOR - Pumps are provided, more particularly piston type pumps having increased energy efficiency, systems incorporating such piston type pumps, and methods of operating piston type pumps. The pumps are suitable for pumping of oil from an oil well or for pumping other liquids such as ground water, subterranean liquids, brackish water, sea water, waste water, cooling water, gas, coolants, and the like. | 10-30-2014 |
20140322036 | DELAY-MINIMIZED DETECTION OF AN AUXILIARY CONTROL VARIABLE - A method for the delay-minimized detection of an auxiliary control variable for a system comprising a control system and a controller, whereby an output variable is detected at the end of the control system, whereby a disturbance variable is active in the control system, characterized in that a state variable is detected in the control system at a place before the point of action of the disturbance variable, whereby the auxiliary control variable is calculated from the state variable that has been weighted with a constant k | 10-30-2014 |
20140322037 | PISTON PUMP - A piston pump is provided comprising a cylinder with an inner cylinder wall and a working space. The piston pump includes a piston inside the cylinder and has a piston head with a first and second projections extending from its lateral surface to the cylinder wall. These first and second projections enclose a cavity between the piston head and the cylinder wall. The piston head also includes a channel for routing a flushing fluid to the cavity. The first and second projections are configured to promote flow of the flushing fluid out of the cavity and into the working space of the cylinder. | 10-30-2014 |
20140322038 | Pump Motor Protector with Redundant Shaft Seal - An electric submersible pump device having a motor part, a pump part, and a protector part. The protector part includes redundant shaft seal parts. | 10-30-2014 |
20140328695 | Hydraulic Pump - A pump including a cylinder body having first and second ends and a cylinder bore, a plug shaft including first and second ends and a plug shaft bore, wherein the first end of the plug shaft is fixed relative to the cylinder body, and wherein the second end of the plug shaft includes a stop, a first piston received within the cylinder bore to partially bound a first gas chamber and a hydraulic fluid chamber, the first piston being received over the plug shaft and axially moveable relative to the plug shaft, a socket shaft including first and second ends and a socket shaft bore, the socket shaft bore being configured to sealingly receive the plug shaft, a second piston received within the cylinder bore to partially bound a second gas chamber and the hydraulic fluid chamber, the second piston being connected to the socket shaft. | 11-06-2014 |
20140328696 | Manual Override Utility Pump - A utility pump including a pump body defining an inlet and an outlet, a pump motor positioned within the pump body and arranged to move fluid from the inlet to the outlet, a control circuit arranged to operate the pump automatically, and a remote switch arranged to selectively operate the utility pump in one of an automatic mode and an on mode. When the remote switch is arranged in the on mode the control circuit is bypassed. | 11-06-2014 |
20140328697 | MULTIPLE SEGMENTED PERISTALTIC PUMP AND CASSETTE - In various embodiments, a surgical cassette, configured to engage peristaltic pump rollers, may include two or more pump segments between a sheet and a substrate coupled to the sheet. The two or more pump segments on the cassette may produce additional flow (e.g., approximately twice the flow for two segments as opposed to one) than if the cassette had only one pump segment engaging the roller. Further, in some embodiments, the two or more pump segments and rollers on the roller head may be configured to provide a flow profile in which a peak of a pulse from a first pump segment is at least partially out of phase with a peak of a pulse from the second pump segment. The combined resultant flow may then have a flow profile with pulsation amplitudes that are smaller than the individual pump segment pulsation amplitudes. | 11-06-2014 |
20140341754 | Vacuum Truck with Loading Pump - A transport truck for removing and transporting waste fluids, the transport truck having a storage tank mounted on a frame, a motor furnishing transport power to move the truck, and a fluid transfer apparatus. The fluid transfer apparatus includes a diaphragm pump in fluid communication with the storage tank, and having a first side and a second side. The first side has a first coupling configured for attachment to an external structure, and the second side has a second coupling connected to the storage tank by a fluid conduit. The fluid transfer apparatus is closed, so that the fluids within the fluid transfer apparatus are substantially separated from ambient air. | 11-20-2014 |
20140341755 | HORIZONTAL AND VERTICAL WELL FLUID PUMPING SYSTEM - A pump system for producing fluids from a reservoir using a wellbore having a vertical section with a casing defining an annulus, a transitional section and a horizontal section, and a production tubing having a vertical section and a horizontal section, wherein the system includes a completion with an isolation device in the annulus near the bottom of the vertical section, a gas/liquid separator for receiving produced fluids from the horizontal section, and a vertical lift pump; a continuous flow path from the terminus of the production tubing to the vertical section; a plurality of horizontal pumps in the horizontal section, each having an intake exposed to the reservoir and an outlet in the continuous flow path. The horizontal length of the production tubing is closed to the reservoir except through the horizontal pumps. A method of producing fluids includes isolating a vertical section of a wellbore from a horizontal section; isolating the production tubing from the reservoir; pumping fluid from the reservoir adjacent a toe segment into a production tubing toe segment and towards the heel segment; and pumping fluid from the reservoir adjacent a heel segment into the production tubing heel segment and towards the vertical section, and pumping fluid up the vertical section to the surface. Also disclosed is a diaphragm pump. | 11-20-2014 |
20140341756 | METHODS, DEVICES, AND SYSTEMS FOR MOVING A FLUID ALONG A FLUID PATH FOR TREATMENT - The devices and systems are medical fluid treatment therapies. The device and systems are configured and capable of operating based on small volumes of fluids. The devices and systems include a pump configured for small volume of a fluid. The pump may include a first conduit configured for inflow of the fluid; a second conduit configured for outflow of the fluid; a fluid chamber configured to move the fluid through the pump; a diaphragm configured to force the fluid through the fluid chamber by indirectly exerting force on the fluid chamber; and a connector configured to removably attach the pump to a motor. | 11-20-2014 |
20140348668 | BELLOWS SYNTHETIC JET - A device for generating a synthetic jet is described. The device can include a flap, an actuator coupled to the flap and a chamber including an aperture. The flap forms a portion of the chamber. The flap is configured to oscillate in a flapping motion such that fluid is alternately drawn into the chamber via the aperture and expelled from the chamber via the aperture to form the synthetic jet. In some embodiments, multiple flaps can be used on a device to generate the synthetic jet. | 11-27-2014 |
20140348669 | Pump Device for Ice Cream or Yogurt Machine - A system includes a pump device for producing a mixture product, a casing having a concealed cavity for receiving the mixture product via the pump device; and a clutch unit operatively linked to the pump device for controllably maintaining an interior pressure of the concealed cavity at a predetermined threshold. Accordingly, the pump device is activated by the clutch unit for delivering the mixture product into the concealed cavity through an inlet of the casing until the interior pressure of the concealed cavity reaches the predetermined threshold and is deactivated by the clutch unit for stop delivering the mixture product into the concealed cavity when the interior pressure of the concealed cavity reaches the predetermined threshold. | 11-27-2014 |
20140356191 | Tamper Resistant Hand-Operated Pneumatic Pump - An Example can include an elongate pump barrel extending along a length and defining an elongate hollow piston chamber. The Example can include a piston slidably movable within the piston chamber to compress air within the piston chamber. The Example can include a piston rod connected to the piston. The Example can include a handle connected to the piston rod to reciprocally slide the piston in the piston chamber. The Example can include a piston rod seal disposed around the piston rod and coupled with the elongate pump barrel. The Example can include a downward opening air intake passage, located away from the rod seal, in fluid communication with a top of the piston. | 12-04-2014 |
20140356192 | DISPENSING PUMP - A pump includes a pump body defining a fluid chamber and inlet and outlet ports in fluid communication with the fluid chamber, an inlet check valve connected to the inlet port, an outlet check valve connected to the outlet port, and a piston housing coupled to the pump body and defining a piston chamber. A piston assembly is disposed at least partially within the piston chamber and at least partially within the fluid chamber and includes a piston and a poppet connected to the piston in proximity to the pump body. In addition, the pump includes a gland disposed between a portion of the piston housing and the pump body. Further, the pump includes the poppet having a poppet head axially connected to a diaphragm coupled to a poppet flange. The poppet head is connected to the piston. | 12-04-2014 |
20140356193 | Peristaltic Pump and Method of Transporting Material with a Peristaltic Pump - A peristaltic pump comprises a tube to transport a material in a transport direction and one or more piezoelements, which are configured to cause a squeezing of the tube. Furthermore, a method of transporting material comprises the step of successively actuating the piezoelements along the transport direction of the material and thereby causing a squeezing of the tube. | 12-04-2014 |
20140363309 | EMERGENCY MOLTEN METAL PUMP OUT - A molten metal pump comprised of a metal base defining a pumping chamber is provided. The pump further includes a motor mount adapted to receive a motor, at least one metal post extending between the base and the motor mount, and a metal shaft disposed between the motor and an impeller disposed in the pumping chamber. A bearing ring engages the impeller. The pumping chamber will include an inlet and an outlet. A steel riser tube in fluid communication the outlet is also provided. | 12-11-2014 |
20140363310 | WATER-INJECTED GAS COMPRESSOR AND METHOD FOR CONTROLLING THE WATER SUPPLY - The invention relates to a method for controlling the water supply of a water-injected compressor, into the cooling water circuit of which is injected demineralized and non-demineralized water as fresh water. The method according to the invention is characterized in that the fresh water supplied is a mixture of demineralized and non-demineralized water, and the proportions of the demineralized and non-demineralized water in the fresh water are dependent on the conductivity of the demineralized and non-demineralized water. The invention also relates to a water-injected gas compressor that may be operated with such a method. | 12-11-2014 |
20140363311 | HERMETIC MOTOR COOLING AND CONTROL - An apparatus and method for cooling a compressor motor having a motor stator and rotor in a refrigerant system. The method cools the rotor and the stator, electromagnetic bearings located within a compressor housing providing refrigerant liquid to the stator internal channels, the channels being in fluid communication with a rotor passageway, and a flow-control device controlling refrigerant flow into the stator. A temperature monitoring device in communication with a controller monitors motor temperature. The controller evaluates the motor temperature and adjusts refrigerant flow through the flow control device, maintaining the motor within a predetermined temperature range. | 12-11-2014 |
20140369857 | DEVICE FOR IMPROVED HEAT TRANSFER WITHIN A COMPRESSION AND/OR EXPANSION SYSTEM - A compression and expansion system includes a pressure vessel having a variable volume working chamber therein. The pressure vessel has a conduit through which at least one fluid can be introduced into and discharged from the working chamber. The system further includes a heat transfer element disposed within the working chamber and including a layer and at least one of a fin and a spacing element. The pressure vessel is operable to compress fluid introduced into the working chamber such that heat energy is transferred from the compressed fluid to the heat transfer element, and is further operable to expand fluid introduced into the working chamber such that heat energy is transferred from the heat transfer element to the expanded fluid. | 12-18-2014 |
20140369858 | DEVICE AND METHOD FOR PREPARING LIQUIFIED NATURAL GAS (LNG) FUEL - A method for creating a supply of natural gas fuel for a combustion engine, comprising: obtaining boil-off gas from an LNG storage tank containing liquified natural gas, compressing the boil-off gas in a compression stage consisting of a labyrinth-sealed piston-compressor or a piston-compressor sealed by piston rings, and compressing the natural gas in a compression stage consisting of a piston-compressor sealed by piston rings or a labyrinth-sealed piston-compressor, compressing the natural gas to a pressure of between 100 Bar and 500 Bar, and making the natural gas available at an outlet, wherein at least one of the piston-compressors has a bypass, and that natural gas is returned via the at least one bypass such that the natural gas at the outlet is at a required target pressure (Psoll). | 12-18-2014 |
20140377080 | INTEGRATED PUMP AND COMPRESSOR AND METHOD OF PRODUCING MULTIPHASE WELL FLUID DOWNHOLE AND AT SURFACE - An integrated system is disclosed to handle production of multiphase fluid consisting of oil, gas and water. The production stream is first separated into two streams: a liquid dominated stream (GVF<5% for example) and a gas dominated stream (GVF>95% for example). The separation can be done through shrouds, cylindrical cyclonic, gravity, in-line or the like separation techniques. The two streams are then routed separately to pumps which pump dissimilar fluids, such as a liquid pump and a gas compressor, and subsequently recombined. Both pumps are driven by a single motor shaft which includes an internal passageway associated with one of the pumps for reception of the fluid from the other pump, thereby providing better cooling and greater overall efficiency of all systems associated therewith. A method for providing artificial lift or pressure boosting of multiphase fluid is also disclosed. | 12-25-2014 |
20140377081 | RECIPROCATING COMPRESSORS HAVING TIMING VALVES AND RELATED METHODS - A reciprocating compressor for the oil and gas industry, the reciprocating compressor has a chamber, a timing valve, an actuator and a controller. A fluid entering the chamber via a suction valve is compressed inside the chamber, and evacuated from the chamber via a discharge valve. The timing valve is located between the chamber and a fluid volume at a relief pressure that is lower than a pressure in the chamber when the timing valve is opened. The actuator is configured to actuate the timing valve. The controller is configured to control the actuator such that to open the timing valve during an expansion phase of the compression cycle, and to close the timing valve when the relief pressure becomes equal to the pressure in the chamber or when the suction valve is opened. | 12-25-2014 |
20140377082 | SEMI-COMMANDED VALVE SYSTEM APPLIED TO COMPRESSOR AND METHOD FOR MODULATING THE CAPACITY OF A COMPRESSOR PROVIDED WITH A SEMI-COMMANDED VALVE SYSTEM - Semi-commanded valve system applied to an alternative-type compressor, wherein said compressor comprises at least a cylinder ( | 12-25-2014 |
20140377083 | COMPRESSOR SYSTEM FOR NATURAL GAS, METHOD OF COMPRESSING NATURAL GAS AND PLANT USING THEM - A compressor system including a driver machine, for example a motor or a turbine, an epicyclic gearbox, and a centrifugal compressor, wherein the driver machine, the epicyclic gearbox, and the centrifugal compressor are connected in train configuration, i.e. the output rotary member of the driver machine is coupled to the input rotary member of the epicyclic gearbox and the output rotary member of the epicyclic gearbox is coupled to the input rotary member of the centrifugal compressor. The gear ratio of the epicyclic gearbox is greater than one, typically much more than one, thus increasing the rotation speed from input to output. | 12-25-2014 |
20150017023 | APPARATUSES AND METHODS FOR MODULATING FLUIDS USING ACOUSTICALLY OSCILLATING SOLID STRUCTURES - An acoustofluidic apparatus is provided that functions by the generation of microstreaming in fluid produced by the oscillation of oscillatory elements excited by an energy input such as acoustic energy. An acoustofluidic apparatus includes an oscillatory energy field generator in energetic contact with one or more oscillatory elements contained in a fluid passage. Oscillation of the oscillatory elements induces microstreaming in a fluid that can be used to mix laminar flows of differing fluids, as a micropump for the directional movement of fluid through a fluid passage, for the generation of waveforms in a fluid or plurality of fluids or for other purposes. | 01-15-2015 |
20150017024 | METHOD OF CONTROLLING AN ELECTRIC SUBMERSIBLE PUMP - A method of controlling an electric submersible pump, comprising: a) monitoring the pressure at the suction and discharge of the pump; b) calculating the pressure difference between the discharge and suction pressure; and c) controlling the pump to maintain a constant pressure difference between the discharge and suction pressure. | 01-15-2015 |
20150023805 | Labyrinth Chamber with Helical Blade for a Submersible Well Pump and Method of Use - An electrical submersible pump assembly has a pump, a motor and a seal section with a labyrinth chamber. A guide tube surrounds a drive shaft in the seal section and contains lubricant in fluid communication with lubricant in the motor. The guide tube has a guide tube port adjacent the downstream end of the labyrinth chamber. A. labyrinth tube has an open inlet end in the downstream end of the labyrinth chamber and an open outlet end near the upstream end of the labyrinth chamber. The labyrinth communicates well fluid on the exterior of the seal section into the labyrinth chamber in contact with the lubricant in the labyrinth chamber. A non rotating helical blade in the labyrinth chamber encircles the guide tube, defining a helical flow path between the outlet end of the labyrinth tube and the guide tube port of the guide tube. | 01-22-2015 |
20150023806 | ELEVATOR CONTROL FOR INDUCTOR PUMP - An inductor pump system comprises a fluid activated ram, an inductor pump platen, a fluid activated motor and a fluid control. The inductor pump platen is driven by the fluid activated ram. The fluid activated motor is coupled to the platen. The fluid control comprises an inlet for receiving a source of pressurized fluid, a first circuit and a second circuit. The first and second circuits are configured to receive pressurized fluid from the inlet. The first circuit comprises a switching valve connected to the inlet; an actuator line connected to the ram and the switching valve; and a blow-off line connected to the inductor pump platen and the switching valve. The second circuit is connected to the inlet to receive pressurized fluid and to the motor. | 01-22-2015 |
20150030465 | METHODS AND SYSTEMS FOR REAL-TIME MONITORING AND OPTIMIZING THE PERFORMANCE OF RECIPROCATING COMPRESSORS - Disclosed are systems and methods for monitoring the performance of a plurality of reciprocating compressors having components made by at least two different manufacturers. A source of reciprocating compressor data associated with a plurality of reciprocating compressors and a source of reciprocating compressor component specifications associated with the plurality of reciprocating compressors are in communication with a computer processor. The computer processor obtains at least one measured value from the source of reciprocating compressor data and at least one specification value from the source of reciprocating compressor component specifications, performs at least one calculation using the at least one measured value and the at least one specification value to calculate at least one calculated performance value, compares the at least one calculated value to a user-defined calculated value limit selected from the group consisting of an upper alarm limit, a lower alarm limit, an upper deviation limit, a lower deviation limit, a maximum value, a minimum value and combinations thereof, and initiates an alert to a user of any calculated value exceeding the user-defined calculated value limit every user-defined period of time. | 01-29-2015 |
20150030466 | Urea Solution Pumps Having Leakage Bypass - Urea solution pumps having leakage bypass flowpaths and methods of operating the same are disclosed. Certain embodiments are pump apparatuses including an inlet passage in flow communication with a source of urea solution and a pump chamber, an outlet passage in flow communication with the pump chamber and an exhaust after treatment system, a diaphragm facing the pump chamber and coupled with an actuator, a first housing member coupled with a second housing member form a seal around the pumping chamber, a leak collection chamber surrounding the seal, and a return passage in flow communication with the leak collection chamber and the inlet passage. Urea solution that leaks from the pump chamber past the seal is received by the leak collection chamber and flows through the return passage to the pump inlet passage. | 01-29-2015 |
20150030467 | METHOD AND APPARATUS FOR MECHANICALLY HEATING A MIXTURE OF SUBSTANCES - A method for mechanically heating a liquid mixture of substances is described. In a liquid-ring pump ( | 01-29-2015 |
20150030468 | COMPRESSOR DEVICE AND METHOD FOR CONTROLLING SUCH A COMPRESSOR DEVICE - Compressor device that comprises a compressor element that is equipped with a compression chamber with at least one coolant inlet, and which furthermore comprises a gas outlet, a gas/coolant separation tank connected to it, and, a cooling circuit with a cooler that extends between the separation tank and the coolant inlet, and which is equipped with control means to adjust the temperature of the coolant flow supplied to the compressor element, whereby the aforementioned control means comprise a first and a second sub-controller, each with a different target parameter, whereby the control means also comprise switching means to place one of the two sub-controllers in an activated state and the other sub-controller in a deactivated state. | 01-29-2015 |
20150030469 | FAN ARRAY CONTROL SYSTEM - A fan array fan section in an air-handling system includes a plurality of fan units arranged in a fan array and positioned within an air-handling compartment. One preferred embodiment may include an array controller programmed to operate the plurality of fan units at peak efficiency by computing the power consumed in various configurations and selecting the configuration requiring minimum power to operate. | 01-29-2015 |
20150037172 | METHOD OF CONTROLLING VACUUM PUMP FOR VEHICLE BRAKE BOOSTER - An electric brake booster vacuum pump of a vehicle has a deactivation level determined according to a percentage of maximum available vacuum at the instant altitude of the vehicle. The activation level may be determined in the same way. The invention provides for earlier on-switching of a vacuum pump at altitude, whilst ensuring that the off-switching value is achievable at low atmospheric pressure. | 02-05-2015 |
20150037173 | METHOD AND DEVICE FOR ACTIVATING AN ELECTRIC VACUUM PUMP FOR A BRAKE BOOSTER OF A VEHICLE - Described are a method and a device for activating an electric vacuum pump for a brake booster of a vehicle. The brake booster is supplied with a vacuum from a vacuum reservoir. The vacuum pump is designed to increase the vacuum in the vacuum reservoir as soon as the vacuum drops below a predefinable switch-on threshold. In order to avoid unnecessarily frequent switching on of the vacuum pump, which may irritate the driver, an expected decrease of the vacuum in the vacuum reservoir as a result of an instantaneous braking operation is estimated and the switch-on threshold of the vacuum pump is temporarily reduced if the vacuum instantaneously prevailing in the vacuum reservoir minus the estimated vacuum decrease is greater than a predetermined adjustment point vacuum, below which the brake booster can no longer act in a sufficiently boosting manner. | 02-05-2015 |
20150037174 | MULTI-STAGE COMPRESSION AND STORAGE SYSTEM FOR USE WITH MUNICIPAL GASEOUS SUPPLY - A multi-stage gas compression, storage and distribution system utilizing a hydrocarbon gas from a municipal gaseous supply line in a manner that does not affect an operational integrity of said municipal gaseous supply line includes an inlet line fluidly in fluid communication with a supply of hydrocarbon gas at a first pressure, a first compression unit configured to compress the hydrocarbon gas from the inlet line to a second pressure, a first storage vessel configured to receive the hydrocarbon gas from the first compression unit for storage at the second pressure, a second compression unit configured to compress the hydrocarbon gas from the first storage vessel to a third pressure, and a second storage vessel configured to receive the hydrocarbon gas from the second compression unit for storage at the third pressure. | 02-05-2015 |
20150044064 | PUMP SYSTEM FOR GAS DEHYDRATOR POWERED BY THERMAL ELECTRIC GENERATOR - A pump system for use in a gas dehydration system having an absorber/contactor and a reboiler is used to pump glycol or another fluid through a natural gas dehydration system. The pump system includes a gear pump connected to an electric motor for pumping glycol from the reboiler to the contactor/absorber, The motor may be powered by a thermoelectric generator that uses temperature differences in the gas dehydration system fluid to convert heat into electric energy, The pump system may also include additional pumps for moving fluid from the absorber to the reboiler, for moving a second fluid through a heat trace loop, and/or for driving peripheral components. | 02-12-2015 |
20150050162 | Swimming Pool Cover Pump With Integral Water Ejection Spout - A device and method is provided for removing water that has accumulated on a swimming pool cover in the form of a directed stream or spray from a swimming pool cover pump having an integral water ejection spout. The water ejection spout has tubing extending from the pump housing, and a nozzle coupled to the tubing for expelling the pumped water. The water ejection spout is configured to discharge the pumped water in a directed stream or spray upwardly, outwardly and away from the swimming pool cover pump and thus the swimming pool cover. In one form, the swimming pool cover pump with integral water ejection spout includes another water outlet configured to receive a garden hose. Piping and a valve allows user selection of the desired water outlet—namely, either the water ejection spout or the garden hose water outlet. | 02-19-2015 |
20150064026 | MOTOR COOLING SYSTEM MANIFOLD - A cooling system for a motor-compressor and a method for cooling the motor-compressor are provided. The cooling system may include a discharge assembly having a hub portion disposed radially outward of a rotary shaft of the motor-compressor. A plurality of arms may be fluidly coupled with and may extend generally tangential from the hub portion of the discharge assembly. The hub portion may define an annular volume fluidly coupled with the plurality of arms. The cooling system may also include a blower impeller disposed in the annular volume and coupled with the rotary shaft. The blower impeller may be configured to rotate with the rotary shaft and draw a cooling fluid into the discharge assembly. | 03-05-2015 |
20150064027 | SUCTION STABILIZER FOR PUMP ASSEMBLY - A fluid flow stabilizing method and a pump having a stabilized fluid flow passage where a process fluid contains suspended solid particles and is subject to pressure oscillations. The method comprises positioning an expandable membrane along the lower transverse surface, inflating the membrane with a compressible fluid, and alternatingly expanding and contracting the membrane to dampen the pressure oscillations and inhibit settling of the solid particles at the lower transverse surface. The pump comprises a stabilizer comprising a compressible fluid in an expandable membrane elongated along the lower transverse surface of a manifold in fluid communication with the fluid end. Another method comprises reciprocating a plunger in the pump to pass a slurry through the manifold, and alternatingly expanding and contracting a stabilizer in the manifold. | 03-05-2015 |
20150078918 | APPARATUS FOR COMPRESSING A WET GAS FLOW - A method and apparatus for compressing a gas flowing comprising at least 0.1 vol % water, include a compressor containing N compression stages, in which each compression stage includes a compressing means and an exchanger directly or indirectly connected to a water-coolant circuit; and in which at least a first exchanger and a second exchanger, in first and second consecutive or non-consecutive compression stages, are connected in series to the water-coolant circuit. The exchangers, which are not connected in series to the water-coolant circuit, include at their water-coolant output a pressure drop device. | 03-19-2015 |
20150086385 | METHOD FOR CONTROLLING PUMPING OF PUMP UNITS IN A WET WELL - A method for controlling pumping of a plurality of pump units in a wet well is disclosed. The method uses a genetic algorithm to determine which of the pump units is to be started and its initial operating frequency when the liquid level in the wet well reaches a first predetermined level for pumping. During the pumping process, the pumping control method monitors the liquid level in the wet well in real time to obtain real-time state information and fine-adjusts the initial operating frequency of the pump unit to be started according to the real-time state information. Therefore, the present disclosure achieves optimum efficiency and energy saving. | 03-26-2015 |
20150086386 | MULTI-CHAMBER PUMP APPARATUS, SYSTEMS, AND METHODS - Disclosed are apparatus adapted to dispense and/or aspirate liquids, such as in a clinical analyzer. In one aspect, a multi-chamber pump apparatus is disclosed that has a pump body containing first and second chambers, a piston having a first piston portion of a first pump area A1 received in the first chamber, and a second piston portion of a second pumping area A2 received in the second chamber, and an actuator coupled to the piston. The first and second chambers can be selectively accessed to improve metering accuracy at dissimilar flow volumes from the chambers. Methods and systems including the multi-chamber pump apparatus are provided, as are other aspects. | 03-26-2015 |
20150086387 | METHOD AND APPARATUS FOR WARMING UP A VACUUM PUMP ARRANGEMENT - A method for warming up a vacuum pump arrangement having a booster pump and a backing pump downstream of the booster pump for evacuating a process chamber includes setting the booster pump at a first speed higher than an idle speed of the booster pump when the same is in an idle mode; and controlling a backing pressure at an outlet of the booster pump within a range from 0.1 mbar to 10 mbar at least for a period of time from when the vacuum pump arrangement is activated from the idle mode to when the booster pump reaches a temperature equal to or exceeding a first predetermined threshold value. Such method is implemented in system where a controlled is configured to carry out the above-motioned actions. | 03-26-2015 |
20150086388 | Compressor Comprising Purging and Method for Purging the Compressor Housing with Purge Gas - In order to prevent working medium from accumulating in the compressor housing ( | 03-26-2015 |
20150093256 | PRESSURE EQUALIZER - Systems and methods for maintaining a desired differential pressure between a cooling oil of an electric motor and a process gas working fluid of a compressor connected axially to the electric motor. The cooling oil acts as a coolant for the motor compartment of the electric motor and the gas working fluid acts as a coolant for the rotor compartment of the electric motor. At least one bellow is configured to provide two sealed compartments in a pressure equalizer and a spring means is configured to add a differential pressure to the cooling oil, assuring no leaks between the two fluids flows from the cooling oil to the process gas working fluid and no contact of the process gas working fluid with the electric motor stator, in particular electric motor laminations and electric motor windings. | 04-02-2015 |
20150093257 | Peristaltic Submersible Pump - A system for displacing fluid inside of a tubular member includes at least one peristaltic pump. Each peristaltic pump includes an elongated core member with a longitudinal axis located within the tubular member. A flexible member surrounds, and is concentric to, the elongated core member. The flexible member has a plurality of circular bands disposed along a length of the flexible member, each circular band being moveable between a contracted condition with a minimal radius and an expanded condition with a maximal radius. An outer membrane covers the circular bands, forming a first fluid cavity between an outer surface of the outer membrane and an inner surface of the tubular member. The outer membrane is operable to generate peristaltic waves in the first fluid cavity by selectively moving each circular band between the contracted condition and the expanded condition. | 04-02-2015 |
20150093258 | SCAVENGE PUMP OIL LEVEL CONTROL SYSTEM AND METHOD - A hybrid vehicle includes a hybrid module, a transmission and a torque converter. The lubrication system associated with the torque converter includes an oil sump within the torque converter housing which is intended to be managed as a “dry” sump oil lubrication system. There is an oil pump in communication with the sump in order to manage the sump oil level. By monitoring an operational parameter of the oil pump motor (pressure, torque, or current) oil aeration can be detected. | 04-02-2015 |
20150098839 | Pump Systems and Methods - Illustrative embodiments of a pump systems and methods are disclosed. In at least one embodiment, a pump system includes a main pump including an inlet and an outlet and configured to supply energy to a pumped fluid. The pump system further includes a booster pump fluidly coupled to either the inlet or the outlet of the main pump such that the pumped fluid flows through a pumping chamber of the booster pump whether the booster pump is active or inactive. The booster pump is configured to modify the energy of the pumped fluid when active and to allow the pumped fluid to flow through the pumping chamber without substantially modifying the energy of the pumped fluid when inactive. | 04-09-2015 |
20150098840 | Hydraulically Powered Ball Valve Lift Apparatus and Method for Downhole Pump Travelling Valves - The Invention provided is a hydraulic powered down hole reciprocating pump traveling valve component to provided lifting hydraulics on the down stroke using the derived motion and pressure of petroleum liquids and gasses, such as oil, water and natural gas and also utilizing the frictional traveling forces driven by the surface equipment. Designed to utilize the elements within the pumping apparatus to obtain the hydraulic power within and transfer the energy's force to the exposed bottom end of the pressure locked traveling ball valve adjacent within the ball valve containment cage, providing ultimate lifting power to open the ball valve on the initiation of the down stroke. The component consist of a Hollow Hydraulic Power Shaft, Hollow Pressure Motion House, and a Fluid Cavity Power Drag Plunger. | 04-09-2015 |
20150098841 | Spin Pump With Spun-Epicyclic Geometry - The subject matter described herein relates to a spin pump that includes a combination of a compressor and a vacuum pump on respective pistons extending from a common crankshaft in a rotating housing. Related methods, apparatuses, systems, techniques and articles are also described. | 04-09-2015 |
20150104329 | PERISTALTIC PUMP SYSTEMS AND METHODS - Staged peristaltic pump systems and related methods are disclosed. A system may be configured such that the working fluid pressure differential across any individual stage of the system is smaller than the pressure across the entire system. In some embodiments certain components of each stage may be sealed from fluid communication with an external environment, though working fluid may be configured to cross the boundary of the seal. In some embodiments, stages may be pressurized with respect to an external environment. | 04-16-2015 |
20150104330 | PERISTALTIC PUMP SYSTEMS AND METHODS - A staged peristaltic pump system and related methods are disclosed. The system may be configured such that the working fluid pressure differential across any individual stage of the system is smaller than the pressure across the entire system. In some embodiments certain components of each stage may be sealed from fluid communication with an external environment, though working fluid may be configured to cross the boundary of the seal. In some embodiments, stages may be pressurized with respect to an external environment. | 04-16-2015 |
20150104331 | CANNULA APPARATUS AND VENTRICULAR ASSIST SYSTEMS USING THE CANNULA APPARATUS - Cannula apparatus, ventricular assist systems including the cannula apparatus, and methods of priming and placing the cannula apparatus and ventricular assist systems are described herein. | 04-16-2015 |
20150104332 | ADAPTIVE HYDRAULIC PRESSURE GENERATOR - An adaptive hydraulic pressure generator is provided for systems in which the mechanical force producing energy varies significantly, especially for wave energy systems. The pressure generator includes at least two fluid chambers with a piston surface/displacement surface arranged to reciprocate with the fluid chamber, whereby the piston surface/displacement surface acts on the fluid in the chamber by means of the said mutual reciprocating movement. The pressure generator is equipped with a control system which is arranged to connect the chambers to each other and/or to different pressure ducts in such a way that the effective area of the piston/displacement surfaces changes in accordance with the changes in the driving force exerted on the piston/displacement surfaces and/or the body forming the fluid chamber in such a way that the pressure produced by the pressure generator in the fluid supplied to the application exceeds the threshold pressure. | 04-16-2015 |
20150110643 | ELECTRIC PROGRESSIVE CAVITY PUMP - An electric progressive cavity pump system includes a progressive cavity pump in operation connection with a six-pole, three-phase electric motor. A method of producing fluid from a wellbore includes the steps of positioning a progressive cavity pump below a fluid level in the wellbore, connecting a six-pole, three-phase electric motor that includes a stator having eighteen slots and a plurality of windings distributed among the eighteen slots, wherein the windings of different phases do not pass through the same slot and operating the progressive cavity pump via the electric motor to produce the fluid from the wellbore. The electric motor may be positioned below the fluid level in the wellbore or at the surface. | 04-23-2015 |
20150118066 | LOAD REDUCTION - A method and apparatus are disclosed for selectively providing a fluid communication path between a plunger element and a contact region of an intermediate element that drives the plunger element. The fluid communication path is suitable for lubricant flow to enable a contact zone to occasionally be lubricated. The apparatus includes an elongate plunger element comprising a first end region, an intermediate element comprising a contact region arranged to selectively abut with and thereby urge a further end region of the plunger element and a spring seat member at the further end region of the plunger element. The spring seat member biases the further end region of the plunger element away from the intermediate element during a portion of a cycle of motion of the plunger element. A fluid communication path is thereby provided between an abutment surface of the further end region and the contact region. | 04-30-2015 |
20150118067 | Upthrust Module for Well Fluid Pump - A well fluid pump assembly includes a rotary pump having a rotatable pump shaft. A motor is cooperatively engaged with the pump shaft for rotating the pump shaft. An upthrust module has an upthrust module housing having a lower end secured by a threaded engagement to an upper end of the pump. An upthrust module shaft is rotatably mounted in the housing and has a lower end in engagement with an upper end of the pump shaft for transferring upthrust on the pump shaft to the upthrust module shaft. An upthrust base is stationarily mounted in the housing. An upthrust runner is mounted to the upthrust module shaft for rotation therewith and located below the upthrust base. The upthrust runner engages the upthrust base to transfer to the housing upthrust applied to the upthrust module shaft from the pump shaft. | 04-30-2015 |
20150125313 | PRESSURE COMPENSATION CONTROL OF A FIXED DISPLACEMENT PUMP IN A PUMPING AND METERING SYSTEM AND ASSOCIATED METHOD - A fuel system includes a pump unit having at least a fixed displacement pump supplying pressurized flow. A fuel control assembly receives flow from the pump unit and includes at least one metering valve and at least one throttling valve. A control (bypass valve control) for the fixed displacement pump receives first and second pressure signals indicative of a pressure differential across the throttling valve, or across the metering valve/throttling valve combination, for altering output from the fixed displacement pump in response to the pressure differential. In other embodiments, the pump unit includes a centrifugal pump and a fixed displacement pump that can be fully or partially redundant depending on sizing of the pumps, and the system requirements. | 05-07-2015 |
20150125314 | Vertical Cooler With Liquid Removal and Mist Eliminator - A vertical gas cooler suitable for use as an intercooler in a multi-stage compressor includes an inlet at its upper portion, a tube bundle, a centrally disposed mist eliminator assembly and a side-draw outlet. Optionally provided is a drain pipe from the mist eliminator assembly to a sump located below the side-draw outlet. | 05-07-2015 |
20150125315 | HYDRAULIC GRAVITY RAM PUMP - A piston type pumping apparatus comprises a vertically oriented cylinder having a top and a bottom with a first aperture. There are first and second passageways for liquid in the cylinder at the top and bottom respectively thereof. A piston is reciprocatingly mounted within the cylinder and has an area against which pressurized fluid acts in the direction of movement of the piston. A hollow piston rod is connected to the piston and extends below the piston and slidably through the first aperture. There is a reload chamber below the cylinder. The piston rod extends slidably into the reload chamber and has a third passageway for liquid communicating thereto. A first one-way valve is located in the third passageway. There is also a fourth passageway that extends from the reload chamber to a source of liquid to be pumped and a second one-way valve therein. | 05-07-2015 |
20150139819 | ELECTROMAGNETIC ACTUATOR AND INERTIA CONSERVATION DEVICE FOR A RECIPROCATING COMPRESSOR - A compressor includes a piston disposed in a housing and configured to be reciprocatably driven in the housing by an electromagnetic drive. A conventional linear motor drive assembly reciprocatably drives the piston in an embodiment. A magnetically-geared drive assembly reciprocatably drives the piston in another embodiment. A solenoid drive assembly reciprocatably drives the piston in another embodiment. A control system is coupled to the drive for varying piston displacement, and an accumulator conserves force by decelerating a translating assembly at the end of one stroke and accelerating the assembly in a subsequent stroke. | 05-21-2015 |
20150139820 | METHOD FOR LUBRICATING A GEARBOX FOR A WIND TURBINE - A method for lubricating a gearbox of a wind turbine. The gearbox comprises a plurality of gears and shafts supported by bearings of which at least one bearing is a plain bearing. The gearbox furthermore comprises a lubrication system with both a mechanical pump and an electrical pump for feeding the gears and bearings with lubricant, wherein a difference between a volume capacity of the mechanical and electrical pump is a maximum 40%. The method comprises the step of controlling at least one valve, during start-up of the gearbox, and feeding lubricant to the bearings via the electrical pump; feeding lubricant to the bearings and the gears, during normal operation of the gearbox, via the electrical pump and the mechanical pump; and feeding lubricant only the bearings, during the absence of electrical power supply, via the mechanical pump. | 05-21-2015 |
20150139821 | PUMP CHAMBER INCLUDING INTERNAL SURFACE MODIFICATIONS - A combination of a chamber wall and the flexible membrane defines a pump chamber in a diaphragm pump. The pump chamber includes one or more internal surfaces that are modified to include a pattern of a pattern of channel surface regions. The channel surface regions provide unobstructed pathways to a respective opening disposed on an internal surface of the chamber wall. For example, as discussed herein, presence of the channel surface regions ensures that the facing of the flexible membrane does not needlessly stick (as a result of residual suction) to an inside surface of the chamber wall during a portion of the pump stroke in which negative pressure is applied to a backing of the flexible membrane. In other words, the channel surface regions distribute relief pressure along the inside surface of the pump chamber wall. | 05-21-2015 |
20150139822 | Cooling Devices And Methods For Use With Electric Submersible Pumps - Cooling devices for use with electric submersible pump motors include a refrigerator attached to the end of the electric submersible pump motor with the evaporator heat exchanger accepting all or a portion of the heat load from the motor. The cooling device can be a self-contained bolt-on unit, so that minimal design changes to existing motors are required. | 05-21-2015 |
20150147192 | VEHICLE AND A METHOD OF REDUCING SOUND PRODUCED BY A LIQUID FLUID PUMP - A vehicle and a method of reducing sound produced by a liquid fluid pump are disclosed. A pump is activated when a predetermined event is detected. A control valve of the pump is operated in one of an initial and a standard mode when the pump is activated. The control valve is operable to allow a gaseous fluid to vent out of the pump when in the initial mode corresponding to the pump being in a first phase. The control valve is operable to allow a liquid fluid to move through the pump when in the standard mode corresponding to the pump being in a second phase. A solenoid of the control valve is energized and de-energized, at a calibrated frequency, in a sequence when in the initial mode to reduce the sound in the pump during the initial mode. | 05-28-2015 |
20150147193 | Load Sharing Control for Compressors in Series - In some aspects, a compressor system includes a compressor train including two or more compressors connected in series and a control mechanism. The control mechanism is controlled by a performance controller. The performance controller is operable to identify a process variable of the performance controller; receive, on a recurrent basis from a load sharing controller, a setpoint for the process variable of the performance controller; and control the control mechanism based on the setpoint and the process variable of the performance controller. The setpoint is determined dynamically during operation of the two or more compressors by the load sharing controller based on a load sharing parameter associated with the two or more compressors. | 05-28-2015 |
20150147194 | SEGMENTED FLUID END - Disclosed is an improved segmented fluid end for high-pressure plunger pumps. One segmented fluid end includes one or more fluid end modules, each fluid end module including a body providing a plunger bore configured to receive a plunger therein and a discharge outlet in fluid communication with the plunger bore, wherein a pressurized working fluid may exit the body of each fluid end module via the discharge outlet, a discharge manifold having an elongate manifold body configured to be operatively coupled to each fluid end module, the manifold body providing a first end, a second end, a discharge bore extending between the first and second ends, and one or more discharge inlets that fluidly communicate with the discharge bore, and a ring joint gasket arranged between each discharge inlet of the discharge manifold and a corresponding discharge outlet of the one or more fluid end modules. | 05-28-2015 |
20150147195 | CHANNEL-LESS PUMP, METHODS, AND APPLICATIONS THEREOF - A channel-less microfluidic pump includes a cartridge including a substrate and an actuatable film layer disposed on the substrate, and a manifold having at least three actuatable void volumes separated by a plurality of wall sections and an actuatable flexible layer disposed on the manifold interfacing the actuatable film layer. In operation, the pump can be in an unactuated state wherein the actuatable film layer is disposed against the surface of the substrate or an actuated state wherein at least a portion of the flexible layer and a corresponding portion of the actuatable film layer are deflected into a corresponding void volume thus forming a fluidic volume between the deflected portion of the actuatable film layer and the surface of the substrate. In the actuated state, there is a fluidic gap between immediately adjacent void volumes formed by a thinned region of the flexible layer at a point of contact with a top surface of a wall section. A method of transporting fluid using the channel-less microfluidic pump is described. | 05-28-2015 |
20150292495 | SYRINGE QUICK DISCONNECT APPARATUS AND RELATED METHOD - A fluid metering system having a syringe assembly attachable to a syringe dock is provided. The fluid metering system also comprises a plunger assembly with the syringe assembly that has a plunger configured to aspirate a fluid into the syringe assembly and/or dispense a fluid contained in the syringe assembly. A driving portion of a syringe drive with the fluid metering system is attachable to the plunger assembly, wherein the driving portion is configured to actuate dispensing and/or aspirating of the fluid. A slot with the syringe dock is configured to accept the syringe assembly, and an end cap with the syringe assembly slidingly engages the slot. | 10-15-2015 |
20150292499 | HYDRAULICALLY CONTROLLED HYDROSTATIC TRANSMISSION - A hydrostatic transmission system includes a pump including a rotatable swash plate, wherein rotation of the swashplate effects a change in volumetric displacement of the pump. An actuator is coupled to the swashplate, the actuator operative to effect rotation of the swashplate to change the volumetric displacement of the pump. An electronic controller is operatively coupled to the actuator, the electronic controller configured to command the actuator to effect rotation of the swashplate. | 10-15-2015 |
20150292500 | METHOD FOR OPERATING A PERISTALTIC PUMP - A peristaltic pump comprises a flexible tube, a compression mechanism being actuatable for compressing the flexible tube, an upstream valve mechanism being actuatable to selectively open or close the tube upstream of the compression mechanism and a downstream valve mechanism being actuatable to selectively open or close the tube downstream of the compression mechanism. A drive mechanism actuates the compression mechanism, the upstream and downstream valve mechanisms. A pressure sensor measures a pressure signal indicative of a pressure in the tube between the upstream and downstream valve mechanisms. First and second signal values indicative of a pressure value downstream the downstream valve mechanism and upstream the upstream valve mechanism, respectively, are computed from the measured pressure signal. A threshold value is computed from the first and second signal values, and the measured pressure signal or a derived signal parameter is compared with the threshold value to detect a fault condition. | 10-15-2015 |
20150300347 | A METHOD FOR OPERATING A COMPRESSOR IN CASE OF FAILURE OF ONE OR MORE MEASURE SIGNAL - A method for operating a compressor. The method includes: acquiring a plurality of measured data; verifying the congruence of the measured data through the calculation of the molecular weight of the compressed gas based on compressor adimensional analysis; in case of failure of a first measurement of the measured data, substituting the first measurement with an estimated value based on the last available value of the molecular weight and on the available measurements of the measured data and on compressor adimensional analysis; and determining an estimated operative point on an antisurge map based on the estimated value and on the available measurements of the measured data. | 10-22-2015 |
20150300349 | VARIABLE FLUID FLOW HYDRAULIC PUMP - A variable fluid flow hydraulic pump including one or more displacement bodies | 10-22-2015 |
20150308241 | Hydraulically Powered Ball Valve Lift Apparatus and Method for Downhole Pump Travelling Valves - The Invention provided is a hydraulic powered downhole reciprocating pump traveling valve component to provided lifting hydraulics on the down stroke using the derived motion and pressure of petroleum liquids and gasses, such as oil, water and natural gas. Designed to utilize the elements within the pumping apparatus to obtain the hydraulic power within and transfer the energy's force to the exposed bottom end of the pressure locked traveling ball valve adjacent within the ball valve containment cage, providing ultimate lifting power to open the ball valve on the initiation of the down stroke. | 10-29-2015 |
20150308427 | Method for emptying a device for providing a liquid additive - A method for operating a device for providing a liquid additive includes feeding the liquid additive along a feeding path. The feeding path has at least one first portion in which a peristaltic pump is disposed. The pump, in particular, has a reversible feeding direction and can be damaged by deposits discharged from the liquid additive. The feeding path also has at least one second portion in which a component susceptible to freezing is disposed. At first liquid additive is fed along the feeding path of the device. Subsequently, the feeding of the liquid additive is stopped. The feeding path is then partially emptied in such a way that liquid additive remains in the at least one first portion of the feeding path while the at least one second portion is emptied. A device for providing a liquid additive is also provided. | 10-29-2015 |
20150308438 | Self-Cooling Fan Assembly - A self-cooling fan in configured with a vent feature that draws air into a fan housing and over a heat sink to dissipate heat generated by the motor and/or control unit. The self-cooling fan has a conduit with an attached end opening that couples with a cooling zone within the fan housing and extends along a portion of the fan blade(s). A vent feature is an opening in a conduit, at or near the extended end of the conduit, that allows air to exit the conduit. A vent feature may be a venturi feature. A venturi feature creates a vacuum within a conduit via outer diameter blade velocities interacting with venturi geometries when the blades are rotating, further promoting the drawing of air into the fan housing. A cooling channel allows air from outside of the fan assembly to enter into a cooling zone where a heat sink is configured. | 10-29-2015 |
20150316012 | PUMP UNIT - A pump unit for a fuel injection system is disclosed. The pump unit has a low pressure fuel supply line and a high pressure fuel outlet. A pumping chamber having a plunger is operable to perform a pumping cycle comprising a pumping stroke and a filling stroke. The pump unit also includes an inlet valve having an inlet valve member movable between an open position for permitting the supply of fuel to the pumping chamber from the low pressure fuel supply line and a closed position for inhibiting the supply of fuel from the pumping chamber to the low pressure supply line. An outlet valve is provided in the high pressure fuel outlet. The pump unit also includes means for coupling the plunger to the inlet valve member. The present application also relates to a method of operating a pump unit; and a valve for a fuel injection system. | 11-05-2015 |
20150316041 | DYNAMICALLY ADJUSTABLE IMPULSE DRIVING FLUID JETTING DEVICE - A device includes a fluid jetting tube, a cylinder and a disk valve. The cylinder is formed on an exterior of the fluid jetting tube and includes a port to receive a fluid supply line and an internal movable piston configured to control an internal volume of the cylinder. The disk valve rotates within the cylinder and extends from the internal volume of the cylinder through a slot in the fluid jetting tube into an interior of the fluid jetting tube. | 11-05-2015 |
20150316045 | Unitary Fluid Flow Apparatus for Inflating and Deflating a Device - The subject invention provides a fluid flow apparatus for transporting a fluid to inflate and deflate a device including a pumping device and a housing defining a chamber, an inlet port, a fill port, and an exhaust port. A seal member is movable between a seated position closing the exhaust port and an unseated position. A motor has a shaft rotating in each of a first and second rotational direction. A clutch is disengaged from the shaft as the shaft rotates in the first rotational direction and is engaged with and rotates with the shaft as the shaft rotates in the second rotational direction. A centrifugal member is mounted and rotates with the clutch when the shaft rotates in the second rotational direction and engages the seal member to move the seal member to the unseated position for permitting the fluid within the chamber to escape through the exhaust port. | 11-05-2015 |
20150322756 | Subsea Multiphase Pump or Compressor with Magnetic Coupling and Cooling or Lubrication by Liquid or Gas Extracted from Process Fluid - A submersible fluid system for operating submersed in a body of water includes an electric machine and a fluid-end. The fluid-end includes a fluid-end housing having an inlet to a fluid rotor, the fluid rotor coupled to the electric machine and carried to rotate in the housing by a bearing in the housing. A fluid separator system receives a multiphase fluid and communicates a flow of the fluid to the inlet and a substantially liquid flow extracted from the multiphase fluid to the bearing. | 11-12-2015 |
20150322930 | METHOD FOR THE VACUUM SUPPLY FOR A PNEUMATIC BRAKE BOOSTER OF A MOTOR VEHICLE BRAKING SYSTEM - A method for supplying vacuum for a pneumatic brake booster for a motor vehicle braking system, using an electromotively-driven displacement type pump assembly. At least one pressure sensor for monitoring a pneumatic pressure is associated with the pump assembly, and electric signals of the pressure sensor are fed to an electronic unit, analysed, and processed in order to regulate the pressure. A plausibility check of the pressure sensor signal is carried out by a pressure value amplitude being determined, by signal analysis, in the form of a difference between a maximum pressure value and a minimum pressure value within a stroke of the displacement element, and this being compared to a stored comparison value wherein if the pressure value amplitude deviates from the comparison value by a defined amount, the signal of the pressure sensor is then defined as implausible. | 11-12-2015 |
20150322934 | "Compressor Cooled By a Temperature Controlled Fan" - A multistage compressor includes a first compression stage and a second compression stage connected in series with the first compression stage that receives and further compresses gas from the first stage. A first cooling element is connected between the first compression stage and the second compression stage. A second cooling element is connected to a discharge of the second compression stage. The multistage compressor further includes a cooling unit for providing cooling airflow to the first and second cooling elements. The cooling unit includes a fan and a first temperature sensor that determines a temperature of gas discharged from the first cooling element. The cooling unit is configured to increase or decrease a fan speed based on a temperature determined by the first temperature sensor. A method of controlling fan speed of a cooling fan of a compressor is also provided. | 11-12-2015 |
20150322937 | OIL-FREE COMPRESSOR CRANKCASE COOLING ARRANGEMENT - An oil-free compressor crankcase cooling arrangement includes a compressor crankcase, at least one piston cylinder supported in the compressor crankcase, a crankshaft assembly supported by the compressor crankcase and linked to a piston of the at least one piston cylinder by a connecting rod, at least one inlet valve supported on and in fluid communication with the compressor crankcase, and at least one outlet valve supported on and in fluid communication with the compressor crankcase. A cooling cross-flow of air is established between the at least one inlet valve and the at least one outlet valve to cool the compressor crankcase. The at least one inlet valve and the at least one outlet valve include check valves. A first nozzle is positioned on the at least one inlet valve, and a second nozzle is positioned on the at least one outlet valve. | 11-12-2015 |
20150330373 | SWASHPLATE POSITION SENSOR ARRANGEMENT - A sensor arrangement for determining an actual swashplate angle of a swashplate pivotally attached to a variable displacement hydraulic pump includes a control piston operable to control an angle of the swashplate relative to the variable displacement pump; a position marker arranged on the control piston; and a sensor arranged along the control piston to detect a movement of the position marker. | 11-19-2015 |
20150330385 | FLUID HANDLING SYSTEM FOR A PARTICLE PROCESSING APPARATUS - A fluid handling system for a particle processing instrument includes a pump, a pulse attenuator, a pressure transducer, and a pump controller. The pump may be configured to supply a pulsed flow of fluid having a first pulse characteristic to the pulse attenuator. The pulse attenuator may have a single, undivided, volume, fluid inlets, fluid outlets, and a pressure sensor port. The pulse attenuator may supply an outlet flow of fluid having a second pulse characteristic different from the first pulse characteristic. The pressure transducer may be in fluid communication with the pressure sensor port and in control communication with the pump controller. The pump controller may be in control communication with the pump to maintain a substantially constant nominal pressure within the pulse attenuator by controlling the pump motor. | 11-19-2015 |
20150330409 | AIR COMPRESSOR SYSTEM - A compressor system is disclosed that includes a base structure having a first portion engageable with a support surface and a second portion cantilevered from the first portion. A compressor can be positioned on the first portion of the base structure and an intercooler in fluid communication with the compressor is supported by the second cantilevered portion. At least one attachment mount with a hook member connected to the intercooler is slidingly engageable with the second portion of the base structure. | 11-19-2015 |
20150337843 | Below Motor Equalizer of Electrical Submersible Pump and Method for Filling - An electrical submersible pump assembly has a pressure equalizer coupled to a lower end of a motor. The equalizer has a motor lubricant passage through which lubricant in the motor communicates with motor lubricant in the equalizing element. A valve element in the motor lubricant passage has a closed upper position and an open lower position. The valve element has a drive member on an upper end that mates with a shaft drive member on a lower end of the motor shaft while the valve element is in the upper position and disengages from the shaft drive member while the valve element is in the lower position. A locking feature between the valve element and the motor lubricant passage retains the valve element in the upper position and is releasable in response to rotation of the motor shaft in a selected direction. | 11-26-2015 |
20150337845 | Multi-stage compressor system for generating a compressed gas - A compressor system for generating a compressed gas having at least one main compressor to which pre-compressed gas is fed using at least one pre-compressor, wherein the at least one main compressor is driven, as is also the at least one pre-compressor, by a common drive motor or separate drives, wherein at least one pre-compressor is assigned a hydrodynamic fluid coupling for changing the drive speed of the pre-compressor. | 11-26-2015 |
20150338097 | APPARATUS AND METHOD FOR CONTROLLING THE FLOW OF A FLUID - An apparatus for controlling the flow of a fluid includes a LP fluid inlet ( | 11-26-2015 |
20150345484 | SYRINGE PUMP SYSTEM FOR PULSE-FREE METERING AND PRECISE MIXING IN HPLC UHPLC, MICRO-HPLC AND NANO-HPLC - The invention describes a high-pressure syringe pump system for use in the field of HPLC, UHPLC, micro-HPLC and nano-HPLC in gradient operation. The different solvents are compressed independently by passive non-return valves, the solvent combination does not take place until at an identical pressure, and the target pressure for the initialization is achieved by a control setting with a higher delivery capacity, in which the compressibility is also taken into consideration. The changing of solvents and the flushing of the pump heads take place by way of separate inlets and outlets in the throughflow via an active multiple-position high-pressure valve which can also close the pump head and can open it via the passive non-return valve. The regulating unit and the drive motor which also serves as force sensor detect compressibility, air inclusions and leaks. Depending on the embodiment, the syringe pump heads are stabilized thermally. | 12-03-2015 |
20150345491 | PLUNGER PUMP POWER CONTROL DEVICE AND CONTROL METHOD THEREOF - A plunger pump power control device and a control method thereof. The device comprises a valve body, a valve core, a valve sleeve, a stop plug, a spring pre-loaded mechanism, a feedback mechanism and a slide valve. The slide valve is provided within one end of the valve core. The stop plug is provided at one end of the valve body, and the spring pre-loaded mechanism is provided at the other end of. The valve sleeve, the valve core, and the slide valve are provided between the stop plug and the spring pre-loaded mechanism, and the feedback mechanism is hinged on the valve body. The device enables the hydraulic plunger pump to control the output power, the pump power output is simulated by two broken lines, and the error is less. It is flexible to load variable by the valve core through the pressure of the C-cavity. | 12-03-2015 |
20150349357 | PUMP ASSEMBLY FOR A FUEL CELL SYSTEM - A pump assembly including a first subassembly and a second subassembly. The first subassembly includes a fluid conduit; an inlet fluidly coupled to the liquid reactant dispenser and the fluid conduit; an outlet fluidly coupled to a reaction chamber and the fluid conduit; and a diaphragm, defining a portion of the fluid conduit, that flexes to pump the liquid reactant from the inlet to the outlet. The diaphragm preferably includes an actuation point coupled to the diaphragm, wherein the liquid reactant is substantially contained within the first subassembly during pumping. The second subassembly is couplable to the first subassembly, and is fluidly isolated from the liquid reactant. The second subassembly includes an actuator that couples to the actuation point, wherein operation of the actuator causes pumping action. | 12-03-2015 |
20150354327 | Oil Pressure Regulator for Electrical Submersible Pump Motor - An electrical submersible pump assembly has a pump driven by a motor. A pressure compensator has first and second bellows units axially separated from each other. Each of the first and second bellows units are movable between an increased volume position and a decreased volume position and have a bias toward the decreased volume position. The bias of the first bellows unit is greater than the bias of the second bellows unit. The greater bias of the first bellows unit over the second bellows unit causes the second bellows unit to be at a full volume position at a lower level of the pressure differential than the level at which the first bellows unit is at the full volume position. | 12-10-2015 |
20150354329 | RECIPROCATING DOWNHOLE PUMP - A reciprocating pump for use in a wellbore is disclosed. The pump includes a fluid directing apparatus for directing fluid in and out of the pump, the fluid directing apparatus having an inlet disposed in a sidewall of the fluid directing apparatus and an outlet. The pump also includes a piston disposed in a fluid housing and a piston driving apparatus for reciprocating the piston in the fluid housing to cause fluid to be pulled in and out of the fluid directing tool. A method of using the reciprocating pump is also disclosed. The pump is placed in to the wellbore in an area where fluid is desired to be pumped out of the wellbore. Once positioned in the wellbore, the pump is operated to remove fluid from the wellbore. | 12-10-2015 |
20150354576 | SENSORLESS LOW FLOW ELECTRIC WATER PUMP AND METHOD OF REGULATING FLOW THEREWITH - An electric fluid pump and method of regulating flow of liquid therethrough is provided. The pump has an electric motor including a stator and a rotor, wherein the rotor is supported for rotation to drive an impeller that is fixed thereto for rotation to pump coolant from a fluid inlet to a fluid outlet. A controller is in operable, closed loop communication with the electric motor, and the impeller is operable to rotate in a first rotary pumping direction and an opposite second rotary pumping direction in response to a signal from the controller. The first rotary pumping direction produces a first positive flow rate of coolant outwardly from the fluid outlet and the second rotary pumping direction produces a second positive flow rate of coolant outwardly from the fluid outlet, with the first positive flow rate being greater than the second positive flow rate. | 12-10-2015 |
20150354578 | COLUMNAR AIR MOVING DEVICES, SYSTEMS AND METHODS - An air moving device includes a housing member, an impeller assembly, and a nozzle assembly. The nozzle assembly can include one or more angled vanes set an angle with respect to a central axis of the air moving device. The air moving device can output a column of moving air having an oblong and/or rectangular cross-section. A dispersion pattern of the column of moving air upon the floor of an enclosure in which the air moving device is installed can have an oblong and/or rectangular shape. The dimensions of the dispersion pattern may be varied by moving the air moving device toward or away from the floor, and/or by changing the angles of the stator vanes within the nozzle assembly. | 12-10-2015 |
20150357107 | ELECTROMAGNETIC SOLENOIDS HAVING CONTROLLED RELUCTANCE - An apparatus includes a housing, a solenoid coil disposed within the housing, a pole member, and an armature configured to move from a first position to a second position when the solenoid coil is energized. A contact surface of the armature is spaced apart from a contact surface of the pole member by a first distance when the armature is in the first position, and a second distance when the armature is in the second position. The housing, the pole member and the armature collectively define a flux path characterized by a first reluctance when the armature is in the first position and a second reluctance when the armature is in the second position. The difference between the first reluctance and the second reluctance is less than about thirty percent of the value of the first reluctance. | 12-10-2015 |
20150361886 | GAS TURBINE ENGINE LUBRICATION SYSTEM - A lubrication system includes a lubrication tank, a gearbox driven pump, an electrically driven pump located in parallel with the gearbox driven pump, and a first control valve for selectively connecting the electrically driven pump or the gearbox driven pump with the lubrication tank. | 12-17-2015 |
20150361968 | HYDRAULIC PROPORTIONING SYSTEM WITH FLOW DIVIDER - A hydraulic proportioning system has a flow divider providing hydraulic fluid to drive two hydraulic pumps. The flow divider provides set amounts of hydraulic oil to each of two pumps, and the pumps each provide one material of the plural component material downstream to a mixing manifold. The two materials are mixed at the mixing manifold before application. The flow divider drives each pump at a set speed depending on the volume of hydraulic oil provided to each pump. The flow divider thus determines the ratio of the first material to the second material provided to the mixing manifold by the pumps. | 12-17-2015 |
20150361970 | GAS COMPRESSOR - A compressor is provided suitable for compressing natural gas from a pressure associated with a residential gas supply to a pressure suitable for an automotive gas tank. The compressor utilizes a par of pneumatic cylinders driven by a hydraulic cylinder to compress the gas in a multi-stage process. Various embodiments are provided with respect to the gas compressor portion and the drive portion. A pressure boost system is also provided which utilizes an internal control valve and internal orifice through the piston of one of the pneumatic cylinders. | 12-17-2015 |
20150361973 | LIQUID TRANSPORT DEVICE AND LIQUID TRANSPORT METHOD - A liquid transport device includes a drive mechanism having a rotor rotating when transporting a liquid, and a detection section adapted to detect a rotational angle of the rotor, and power of the detection section is switched between an ON state and an OFF state in sync with switching between drive and halt of the drive mechanism. Such a liquid transport device driven by the rotation of a cam or the rotor can reduce the power consumption of an encoder. | 12-17-2015 |
20150361974 | INFUSION PUMP WITH INDEPENDENTLY CONTROLLABLE VALVES AND LOW POWER OPERATION AND METHODS THEREOF - An infusion pump is provided, including a specially programmed microprocessor, a flow sensor for measuring flow from a source of fluid through an output tubing, a pumping section including a plurality of fingers in operational relationship to the output tubing, an outlet valve associated with the output tubing, and a first actuator configured for sequentially displacing the plurality of fingers to displace fluid through the output tubing. An inlet valve is disposed between the pumping section and the source of fluid; and a second actuator is also included. For detection, by the flow sensor, of flow above a predetermined level, the microprocessor is configured for one of: closing the outlet valve independently of the inlet valve using the first actuator; and closing the inlet valve independently of the outlet valve using the second actuator. | 12-17-2015 |
20150361975 | AIR COMPRESSOR DISCHARGE SYSTEM - A compressor discharge system, operable to output a flow of compressed air to a service line at a system pressure, includes a compressor operable to produce a flow of compressed air at a discharge pressure. The system also includes a filter positioned downstream of the compressor and operable to receive the flow of compressed air at about the discharge pressure and discharge the flow of compressed air at a filter pressure. The system also includes a control assembly including an actuator and a variable sized orifice movable between a first, open position and a second, restricted position, the variable orifice positioned to receive the flow of compressed air at about the filter pressure and to discharge the flow of compressed air at the system pressure. The actuator is operable in response to pressure feedback in the customer service line to move the orifice to the restricted position. | 12-17-2015 |
20150361996 | HYBRID HYDRAULIC SYSTEMS FOR INDUSTRIAL PROCESSES - A hydraulic drive system for driving a load includes a drive shaft; first and second hydraulic pumps driven by the drive shaft, and a control system that operates the hydraulic drive system in a plurality of modes including: a) a first mode where the second hydraulic pump pumps hydraulic fluid from a supply line to an accumulator; b) a second mode where the second hydraulic pump pumps hydraulic fluid from the accumulator to the supply line; c) a third mode where the second hydraulic pump pumps hydraulic fluid from the supply line to a reservoir; and d) a fourth mode where the second hydraulic pump pumps hydraulic fluid from the reservoir to the supply line. At least the second hydraulic pump is a variable displacement bidirectional pump | 12-17-2015 |
20150377062 | METHOD FOR DETECTING, AVOIDING AND/OR LIMITING CRITICAL OPERATING STATES OF AN EXHAUST GAS TURBOCHARGER - A method for detecting, avoiding and/or limiting critical operating states of an exhaust gas turbocharger which is operatively connected to a control unit, with the following method steps:
| 12-31-2015 |
20160001624 | Compressor Arrangement for Operating a Compressed Air Supply Facility, Compressed Air Supply Facility and Compressed Air Supply System, and Vehicle with Such a Compressed Air Supply Facility - The invention relates to a compressor arrangement for operating a compressed air supply facility of a vehicle, having a compressor ( | 01-07-2016 |
20160010607 | ELECTRONICALLY CONTROLLED INLET METERED SINGLE PISTON FUEL PUMP | 01-14-2016 |
20160010608 | AUTOMOBILE FUEL SYSTEM PRESSURIZATION APPARATUSES AND METHODS | 01-14-2016 |
20160010632 | REMOTELY RECONFIGURABLE HIGH PRESSURE FLUID PASSIVE CONTROL SYSTEM FOR CONTROLLING BI-DIRECTIONAL PISTON PUMPS AS ACTIVE SOURCES OF HIGH PRESSURE FLUID, AS INACTIVE RIGID STRUCTURAL MEMBERS OR AS ISOLATED FREE MOTION DEVICES | 01-14-2016 |
20160010634 | PUMPS | 01-14-2016 |
20160010635 | PERISTALTIC PUMP AND RELATED METHODS | 01-14-2016 |
20160010640 | Pressure Relief Mechanism for Linear Actuator Well Pump | 01-14-2016 |
20160010647 | BRACKETLESS MAGNETIC PUMP | 01-14-2016 |
20160018160 | FAN FOR DRYING OF LUMBER - Provided are a fan for use in a kiln and a method of using a fan in a kiln. The fan is connected to a motor using a hollow shaft and universal joints. An expansion joint is used to allow the hollow shaft to contract and expand during use. The bearings are sealed against corrosion caused by an environment within the kiln. | 01-21-2016 |
20160025085 | SUBSEA PRESSURE COMPENSATING PUMP APPARATUS - The present disclosure relates, according to some embodiments, to fluid pump apparatuses. A fluid pump apparatus may comprise a suction compensator, a housing compensator, and a pump. A suction compensator may comprise an ambient fluid compensator, an ambient fluid bladder, and a spring compensator, wherein the spring compensator comprises a first separator partitioning an internal volume of the spring compensator into a first suction fluid chamber and a compensation fluid chamber. A housing compensator may comprise a second separator partitioning an internal volume of the housing compensator into a second suction fluid chamber and a lubrication fluid chamber. The compensation fluid chamber may be in fluid communication with the suction compensator. The first suction fluid chamber may be in fluid communication with the second suction fluid chamber. A pump may comprise a housing defining a lubrication fluid compartment in fluid communication with the lubrication fluid chamber. | 01-28-2016 |
20160025106 | METHOD AND SYSTEM FOR COOLING A MOTOR-COMPRESSOR WITH A CLOSED-LOOP COOLING CIRCUIT - A fluid compression system is disclosed having a hermetically-sealed housing with at least a motor and a compressor arranged therein. The motor may drive both the compressor and a blower device coupled to the housing or otherwise arranged within the housing and configured to circulate a cooling gas throughout the housing and thereby cool the motor and accompanying radial bearings. The blower device circulates the cooling gas through a closed-loop circuit which may include a heat exchanger and gas conditioning skid. Buffer seals may be used to seal the shaft on both sides of the compressor so as to prevent the migration of liquid and solid contaminants into the closed-loop cooling circuit. | 01-28-2016 |
20160032838 | Cartridge Style Ejector Pump - In accordance with one aspect of the disclosure, a cartridge style ejector pump for a fluid flow system is disclosed. The ejector pump may have a body defining a flow path therein. The body may be structurally independent of the fluid flow system. The body may further define a suction inlet communicating through the body to the flow path, an outlet communicating through the body from the flow path, and a motive flow inlet communicating through the body to the flow path. | 02-04-2016 |
20160032878 | MECHANICAL FUEL PUMP DEACTIVATION - A mechanical fuel pump is disclosed for delivering fuel to an engine of a vehicle, the mechanical fuel pump having an activated configuration and a deactivated configuration. A dual fuel system and method are also disclosed for use with the mechanical fuel pump. | 02-04-2016 |
20160032912 | DEVICE FOR PUMPING FLUID FROM A WELLBORE - A pump device for pumping fluid from a wellbore, comprising: a piston member ( | 02-04-2016 |
20160032918 | DEVELOPMENT OF A HIGHER-LEVEL MODEL - A method for controlling and/or monitoring a compressor system is provided. The compressor system includes one or more compressors and one or more peripheral devices. The compressors and peripheral devices are arranged or connected in a predetermined configuration. The compressor system is controlled and/or monitored by a control/monitoring unit. The method involves creating one or more derived models on the basis of one or more initial models of the compressor system that are based on a P&I diagram. The derived models take into account the operative interrelationships among the individual compressors and peripheral devices, and optionally also dynamic processes. The one or more derived models form the basis for subsequent control, monitoring, diagnosis or evaluation routines. | 02-04-2016 |
20160032919 | FULLY-DRAINING DIAPHRAGM PUMP AND CHECK VALVE ASSEMBLY - A fully-draining check valve with a mushroom assembly having a tapered back edge and a drain line disposed with the lower rim of the drain line below the tapered back edge to ensure no fluid becomes trapped in the check valve when not in use. Additionally, a fully-draining diaphragm pump is disclosed having a drain line configured to drain the lowest point of a product chamber to ensure no fluid becomes trapped in the diaphragm pump when not in use. A method of cleaning a fully-draining diaphragm pump and fully-draining check valve assembly is further disclosed comprising inducing turbulent flow of water, wash solution, and/or sanitizer through the assembly and opening ball valves the drain lines of the fully-draining check valves to vent the assembly. | 02-04-2016 |
20160039532 | REMOTE POWER SOURCE PUMP SYSTEM - A pump system includes an actuator which can be retracted by a fluid in the pump system. Also included is a pump with a first drive coupling and a rotational power device with a second drive coupling. The second drive coupling is configured to removably mate with the first drive coupling for powering the pump. A spool valve that is spring loaded and in fluid connection with the pump when the spool valve is in a stow position is also included. In addition, the pump system includes both a relief valve and a reservoir both in fluid connection with the actuator. | 02-11-2016 |
20160040662 | SYSTEM AND METHOD FOR IMPROVED FLOW UNIFORMITY IN A PERISTALTIC PUMP MECHANISM - A pumping mechanism is disclosed that includes a plurality of peristaltic pumping actuators configured to selectively and sequentially compress adjacent portions of a first portion of an at least partially compressible pumping element having an inlet that is upstream of an outlet. The plurality of pumping actuators are further configured to reciprocate at a common drive frequency with a first phase offset between each adjacent pair of pumping actuators. The pumping mechanism also includes at least one compensation actuator arranged to selectively compress a second portion of the at least partially compressible pumping element that is disposed between the first portion and the outlet. The at least one compensation actuator is configured to reciprocate at an optimal displacement and at a modulation frequency that is an integer multiple of the fundamental drive frequency and with a second phase offset between the at least one compensation actuator and the adjacent pumping actuator. | 02-11-2016 |
20160047369 | PUMING SYSTEM - A pump unit which includes a pipe, a flexible bladder inside the pipe, an operating volume between an outer surface of the bladder and an opposing inner surface of the pipe, a valve arrangement to introduce pressurised water into the operating volume and to allow pressurised water to flow from the operating volume and another valve arrangement to allow slurry to flow into the interior of the bladder as water is expelled from the operating volume and to—allow slurry to flow from the bladder when water is introduced into the operating volume. | 02-18-2016 |
20160047370 | DURABLE CANTED OFF-AXIS DRIVER FOR QUIET PNEUMATIC PUMPING - Apparatus and associated methods relate to nutating a piston drive linkage oriented around a longitudinal axis in response to the rotation of a drive shaft about a drive axis, said longitudinal axis being offset and canted with respect to said drive axis. In an illustrative example, the piston drive linkage may be formed as a wobble plate extending radially from the longitudinal axis. Near a periphery, the wobble plate may attach to a plurality of stationary piston cranks. The nutating motion of the piston drive linkage may impart a substantially linear motion profile substantially parallel to the drive axis of rotation. A bearing oriented around the longitudinal axis may advantageously be freely inserted into and removed from an aperture in the wobble plate. An inner race of the bearing may freely rotate about the longitudinal axis in response to rotation about the drive axis. | 02-18-2016 |
20160047387 | SYSTEMS AND METHODS FOR AIR COOLING OF VARIOUS ENCLOSURES - A system for extracting air from a vehicle includes a mounting body and a plurality of fans mounted in the mounting body. The system further includes a panel, interconnected with the mounting body, the panel pivotably attached to the mounting body, the panel having a first position closing the mounting body and a second position opening the mounting body. The plurality of fans is in communication with an airflow passage when the panel is in the second position. The system further includes a solar power source in communication with the plurality of fans and providing power to the plurality of fans. | 02-18-2016 |
20160051740 | Magnet-Based Systems And Methods For Transferring Fluid - A system is provided for pumping fluid, with the system including a fluid pump and a cassette. The pump includes a motor and a piston that is movable toward and away from a flexible diaphragm of the cassette. A linkage connects the motor and the piston to move the piston toward and away from the diaphragm. At least a portion of the piston or the diaphragm is magnetized, with the other having at least a portion that is magnetized or formed of a ferromagnetic material, thereby magnetically coupling the piston and the diaphragm such that movement of the piston moves the diaphragm into and out of a cassette cavity aligned with the diaphragm and piston. Movement of the diaphragm into and out of the cavity changes the effective volume of the cavity, which has the effect of drawing fluid into or forcing fluid out of the cavity. | 02-25-2016 |
20160053749 | Pressure Intensification Device - The presently-disclosed subject matter includes a pressure intensification device that increases the pressure of a fluid at a first pressure to a second higher pressure. In some embodiments the devices comprises an outer shell, and outer element housed within the outer shell, and an inner element housed within the outer element, the inner and outer elements being configured to slide in a reciprocating manner within the outer shell to increase the pressure of a fluid. In some embodiments the device does not comprise an additional power source or motor to increase the pressure of the fluid to a second pressure. | 02-25-2016 |
20160053764 | METHOD FOR CONTROLLING THE COMPRESSION OF AN INCOMING FEED AIR STREAM TO A CRYOGENIC AIR SEPARATION PLANT - A method for controlling the compression of an incoming feed air stream to a cryogenic air separation plant using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed driver assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed driver assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed driver assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling. | 02-25-2016 |
20160059188 | OSMOSIS APPARATUS - An osmosis element comprising a central permeate tube and a membrane element, the membrane having a first part and a second part, the first part having a top edge for location adjacent the central tube, the second part being disposed at the opposite edge, the first part comprising a material to allow water to flow therethrough, the second part comprising at least two adjacent permeate spacers extending from the first part to allow water to flow therethrough, the permeate spacers having a semi-permeable membrane attached to opposed faces of the two adjacent permeate spacers, the first part comprising a barrier extending from the vicinity of the top edge, the central tube comprising an external wall and a longitudinally extending internal separator defining a first channel and a second channel each extending longitudinally of the central permeate tube, at least one first aperture extending from the first channel though the external wall and at least one second aperture extending from the second channel through the external wall. | 03-03-2016 |
20160061202 | GEAR PUMP ON SHAFT - A pump assembly includes a housing having a first lobe. A shaft rotates at least partially inside the housing about an axis and has an outer surface. A base member is mounted on the shaft so as to rotate with the shaft. The base member is mounted on a location of the shaft such that at least a portion of the base member is located within the first lobe. A fin protrudes generally axially from the base member. The fin is configured to extend outward from the outer surface of the shaft. | 03-03-2016 |
20160067397 | METHOD OF DETERMINING THE PRESSURE IN AN EXTRACORPOREAL CIRCUIT - The present invention relates to a method of determining the pressure or of a parameter correlated with the pressure in an extracorporeal circuit of a blood treatment apparatus, in particular of a dialyzer, wherein at least one blood pump which is driven by at least one motor is located in the blood circuit, wherein the motor current of the named motor and the blood flow or a parameter correlated therewith is measured for determining the pressure or the parameter correlated therewith and wherein the pressure p or the parameter correlated therewith is calculated from the measured values. | 03-10-2016 |
20160069336 | COMPRESSOR AND POWER GENERATING SYSTEM AND METHOD OF USING THE SAME - The present invention relates to a compressor having a cylinder block having a center bore piercedly formed at the center thereof and cylinder bores piercedly formed around the center bore, a front housing and a rear housing mounted on both ends of the cylinder block, a driving shaft rotatably passing through the front housing and the center bore, and pistons linearly reciprocating in the cylinder bores with the power received from the driving shaft to compress a refrigerant. The compressor includes a permanent magnet disposed on either of the pistons or the cylinder block and coil parts provided to the other part, wherein power generation is conducted by means of the electromagnetic induction produced by the motions of the pistons. | 03-10-2016 |
20160069342 | Valve Plate Arrangement for an Axial Piston Pump - An axial piston pump may comprise a valve plate assembly including a plurality of valve plates rotatably disposed adjacent to each other and configured to control the flow of fluid between a piston chamber and inlet and outlet port passages. The piston pump may also comprise a swashplate arrangement that is capable of being angled in two different directions to be used in combination with the valve plate assembly. A fixed displacement axial piston pump may also comprise the valve plate assembly disclosed herein in which pressure transitions are facilitated in the same fashion, but without the variable of changing swashplate angles which control pump flow. | 03-10-2016 |
20160079840 | METHOD, DEVICE AND SYSTEM FOR COOLING - An Electro Hydro Dynamic, EHD, thruster ( | 03-17-2016 |
20160090979 | PUMP ARRANGEMENT - A pump arrangement having a unit which comprises a material with a magnetocaloric action, an arrangement of conduits which are in the region of the unit and through which a liquid or gaseous heat-conduction medium flows and a pump system operating according to travelling-wave principles. | 03-31-2016 |
20160090980 | METHOD AND SYSTEM FOR AN INSTRUMENTED PISTON ASSEMBLY - A system and method of monitoring operating parameters of a reciprocating compressor are provided. The system includes a piston head assembly including a piston head body, at least one sensor positioned within the piston head body, and an electrical power source positioned within the piston head body. The electrical power source is configured to provide electrical energy to the at least one sensor. | 03-31-2016 |
20160097297 | COMPRESSOR AND TURBOCHARGER - A compressor comprising a housing having an axial intake and an annular outlet volute, an impeller mounted for rotation about a shaft axis, the impeller having a plurality of blades, an annular diffuser passage surrounding the impeller extending from a diffuser inlet to a diffuser outlet, the impeller hub being mounted in an annular impeller recess in a first wall member of the diffuser, wherein an annular diffuser recess is provided in the first wall member extending radially outwardly from a first end to a second end, the first end being located at a radially outer end of the impeller recess, the second end being located axially inboard of the first end of the diffuser recess and wherein the depth of the diffuser recess at the first end of the diffuser recess is at least 30% of the maximum depth of the impeller recess. | 04-07-2016 |
20160097377 | High-Pressure Fluid Mixing Pump Control System and Fluid Suction Control Method - A high-pressure fluid mixing pump control system and a fluid suction control method, the system comprises a transmission threaded rod and a resolver sensor, wherein: one end of the transmission threaded rod is connected to an oil cylinder piston of a mixing pump, while the other end of the transmission threaded rod is connected to the resolver sensor either directly or via a rotary element that rotates coaxially with the transmission threaded rod. The high-pressure fluid mixing pump control system implements precision control via a mechanical means, converts a linear motion of the piston into a rotary motion, and utilizes the resolver sensor for precision measurement of a rotation angle, thus acquiring a piston displacement amount, and finally acquiring a suction volume. At the same time, an accelerator and an electric brake are also designed, for controlling starting and stopping of the mixing pump. | 04-07-2016 |
20160097382 | System, Method, and Apparatus for Infusing Fluid - A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring-biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube. | 04-07-2016 |
20160102536 | HYDRAULICALLY ACTUATED DOWNHOLE PUMP WITH TRAVELING VALVE - Embodiments of the present disclosure generally relate to a hydraulic pump with gas lock prevention. The pump includes a pump barrel having an intake port and a discharge port and a pump piston movably disposed in the pump barrel. The pump piston divides an inner volume of the pump barrel into a first pump volume connected to the discharge port and a second pump volume connected to the intake port. A pump flow path is formed through the pump piston connecting the first pump volume and the second pump volume. The pump further includes a first valve disposed in the pump flow path in the pump piston. The first valve selectively permits fluid flow from the second pump volume to the first pump volume. The pump further includes a second valve disposed at the discharge port to selectively permit fluid flow out of the first pump volume through the discharge port. | 04-14-2016 |
20160107733 | ELECTRIC POWERED INFLATION SYSTEM - Embodiments of the present disclosure relate generally to inflation systems. Specific embodiments relate to inflation systems that use a mixed flow compressor to deliver a diagonal airflow for inflation. The inflation systems disclosed do not require the use of compressed gas, but can use a battery-powered or otherwise electric motor for generating airflow from ambient air. Particular embodiments may find use in connection with inflating evacuation slides or life rafts on board a passenger transportation vehicle, such as an aircraft or marine vessel. Other embodiments may be used for inflating shelters, life vests, or any other safety device that requires a rapid inflation. | 04-21-2016 |
20160108904 | PULSELESS POSITIVE DISPLACEMENT PUMP AND METHOD OF PULSELESSLY DISPLACING FLUID - A double displacement pump includes an inlet manifold, an outlet manifold, a first fluid cavity between the inlet manifold and the outlet manifold, a second fluid cavity between the inlet manifold and the outlet manifold, and a drive system that includes a housing defining an internal pressure chamber, a piston disposed within the internal pressure chamber and having a first and second pull chambers and a central slot for receiving a drive, a first pull with a free end slidably secured within the first pull chamber and a second pull with a free end slidably secured within the second pull chamber, and a first fluid displacement member coupled to the first pull and a second fluid displacement member coupled to the second pull. | 04-21-2016 |
20160108909 | METHODS AND APPARATUS FOR COOLING A SOLENOID COIL OF A SOLENOID PUMP - In some embodiments, a solenoid-actuated pump includes a first pumping chamber and a second pumping chamber, where the first pumping chamber delivers fluid from the pump to portions of a vehicle to facilitate the operation of the vehicle. The second (or “parasitic”) pumping chamber implements a forced convection cooling method, which utilizes parasitic pumping loss to produce a flow within and/or around the solenoid coil to cool the coil and/or maintain the temperature of the coil during operation. In this manner, the second pumping chamber produces a flow that reduces thermally-related increases in electrical resistance of the solenoid coil of the solenoid-actuated pump. | 04-21-2016 |
20160123185 | METHOD AND A CIRCUIT FOR VENTILATING EQUIPMENT OF A TURBOJET BY THERMOELECTRICITY - The invention provides a method of ventilating equipment of a turbojet, the turbojet ( | 05-05-2016 |
20160123312 | Fluid Pump Having Liquid Reservoir and Modified Pressure Relief Slot - A pump, which generally includes a pump housing and a pump piston. The pump housing defines a central longitudinal bore, a transverse bore communicating with the central bore for conveying a liquid through the pump housing, a liquid reservoir communicating with the central bore and the transverse bore for retaining an amount of the liquid conveyed through the transverse bore and a pressure relief slot extending from the transverse bore to the liquid reservoir. The pump piston is axially and rotatably slidable within the central longitudinal bore for pumping the liquid through the transverse bore. | 05-05-2016 |
20160123313 | PNEUMATICALLY-OPERATED FLUID PUMP WITH AMPLIFIED FLUID PRESSURE, AND RELATED METHODS - A fluid pump for pumping a subject fluid. The fluid pump including, a pump body, a first cavity within the pump body, a second cavity within the pump body, a flexible member, an incompressible fluid, a subject fluid chamber, and a piston. Piston may include a piston head and an elongated piston shaft. The piston may be configured to amplify a first pressure experienced on a first side of the piston head and exerted by a pressurized drive fluid to a second pressure experienced on an end surface of the elongated piston shaft and exerted on the incompressible fluid within the flexible member. The subject fluid may in turn be pressurized to a third pressure substantially equal to the second pressure. | 05-05-2016 |
20160123314 | RECIPROCATING COMPRESSOR SYSTEM - A compressor may include a crankcase, a crankshaft, a piston, a discharge valve and a suction plenum. The crankcase defines a discharge plenum receiving working fluid at a first pressure. The crankshaft is disposed within the discharge plenum. The piston is drivingly connected to the crankshaft and reciprocatingly received in a cylinder. The piston and cylinder cooperate to define a compression chamber therebetween. The discharge valve may control fluid flow through a discharge passage between the compression chamber and the discharge plenum. The suction plenum may receive working fluid at a second pressure that is less than the first pressure. The suction plenum may provide working fluid at the second pressure to the compression chamber. | 05-05-2016 |
20160123336 | CHARGING APPARATUS FOR A COMBUSTION ENGINE - A charging apparatus ( | 05-05-2016 |
20160131127 | HEAT EXCHANGE SYSTEM FOR PATIENT TEMPERATURE CONTROL WITH EASY LOADING HIGH PERFORMANCE PERISTALTIC PUMP - A peristaltic pump has an arcuate raceway with a partially concave inner surface extending through an arc of at least one hundred eighty degrees (180°). The arc defines a midpoint, and a rotor faces the inner surface of the raceway and is both rotatable relative to the raceway and translationally movable relative to the raceway between a pump position, wherein the rotor is spaced from the midpoint a first distance, and a tube load position, wherein the rotor is spaced from the midpoint a second distance greater than the first distance. A motor is coupled to the rotor to rotate the rotor plural are rollers arranged on the rotor to contact tubing disposed between the rotor and the raceway when the rotor is in the pump position. The motor is prevented from stopping at a predetermined angular position to facilitate loading and unloading tubing. | 05-12-2016 |
20160131161 | A MULTI NOZZLE DEVICE FOR PRECISE PRESSURE CONTROL OF GASES AND FLUIDS - According to an aspect of the present invention, multi nozzle device comprises hollow inner cylinder and an outer cylinder. The hollow inner cylinder may have multiple nozzles along the length of said inner cylinder. The hollow inner cylinder may be coupled to a first pressure. The outer cylinder may be mounted over said inner cylinder such that internal diameter of said outer cylinder is in push fit with external diameter of said inner cylinder. The push fit is chosen to minimize friction to enable the outer cylinder to take place of the flapper. The outer cylinder is moved exposing the nozzles and the first pressure is reduced by a proportion related to number of nozzles exposed. In one embodiment, multi nozzle device further comprise, an 0 ring to prevent leakage of pressure when the inner cylinder and the outer cylinder are tight fit. In another embodiment, pressure is pneumatic pressure which may be coupled to the hollow part of the inner cylinder such that pneumatic pressure is released through the nozzles when the outer cylinder is moved exposing the nozzles. | 05-12-2016 |
20160138577 | PUMPING APPARATUS WITH OUTLET COUPLED TO DIFFERENT SPATIAL POSITIONS WITHIN THE PUMPING CHAMBER - Disclosed is a pumping apparatus ( | 05-19-2016 |
20160138581 | PRE-CHARGING PUMP CHAMBER BY PRE-EMPTIVELY OPENING A VALVE - A reciprocating pump with chamber-charging mechanism is provided. In an example diaphragm pump, a discharge valve can be opened by the pressure of fluid leaving the pump and can also be opened by an intermittent mechanical linkage actuated by the reciprocating member powering the pump. The discharge valve is mechanically opened to allow pressure backflow into the pumping chamber, thereby charging compressible fluid mixtures and gases with an increase in pressure. The increased pressure enables the compressible fluids to open the discharge valve on the next compression stroke and exit the pump. In an implementation, the discharge valve is pushed open by the reciprocating power source in a configuration that seals the valve mechanism from well fluid. In another implementation, the discharge valve is pulled open to pre-charge the pumping chamber. | 05-19-2016 |
20160138582 | SYSTEMS AND METHODS FOR SUPPLYING REDUCED PRESSURE AND MEASURING FLOW USING A DISC PUMP SYSTEM - Disc pump systems and methods relate to a disc pump system that includes a first disc pump having a first actuator and a second disc pump having a second actuator. The systems and methods utilize sensors to measure the displacements of the actuators and a processor to determine the pressure differential across each actuator as a function of the measured displacements of the actuators. The disc pumps are fluidly coupled by a known restriction and the processor determines the flow rate of the disc pump system based on the determined pressure differentials across each actuator and the characteristics of the known restriction. | 05-19-2016 |
20160138616 | Reverse Flow Jet Pump - A jet pump of a downhole tool in a wellbore, wherein the jet pump has a nozzle in fluid communication with a throat and wherein the throat is further in fluid communication with a diffuser, the jet pump further having a central channel located towards an uphole end of the downhole tool, wherein the central channel is configured to house a volume of power fluid; a first annular channel defined in the downhole tool, wherein the first annular channel is arranged around the nozzle and in fluid communication with the central channel; a volume of production fluid located towards a downhole end of the downhole tool; a second annular channel defined in the downhole tool configured to house the volume of production fluid; and a reverse channel in fluid connection with the second annular channel, wherein the reverse channel is in fluid communication with the nozzle. | 05-19-2016 |
20160139092 | CARBON DIOXIDE LIQUID PHASE FORMING USING HIGH VOLUME HEAD DISPLACEMENT - Systems and methods for pumping carbon dioxide in a chromatography system include an actuator that receives and compresses carbon dioxide at or above room temperature at a given pressure to put the carbon dioxide in or near supercritical form. This actuator can be a pre-pump disposed on the intake side of a pumping system. Alternatively, this actuator can be a primary actuator in the pumping system. The actuator includes an intake chamber that receives the carbon dioxide and a movable plunger extending into and closely received by the intake chamber. The plunger has a diameter and stroke length adapted to compress the carbon dioxide received by the intake chamber in sufficient volume at the given pressure to put the carbon dioxide in or near supercritical form at or above room temperature. A metered amount of the carbon dioxide in or near supercritical form can then be pumped. | 05-19-2016 |
20160145984 | Auxiliary Face Seal for Submersible Well Pump Seal Section - A well fluid submersible pump assembly includes a pump operatively coupled to a motor and a seal section located between the motor and the pump. The seal section has a single piece tubular housing with adapters secured to opposite ends of the housing. A shaft extends axially through the housing for driving the pump. An auxiliary seal carrier located in the housing has a central bore through which the shaft extends and has an outer diameter portion that seals to the bore of the housing. Opposed check valves in the seal carrier allow lubricant to flow from one side of the auxiliary carrier to an opposite side of the seal carrier in response to a selected pressure differential. A mechanical face seal mounts to the auxiliary seal carrier and seals around the shaft. | 05-26-2016 |
20160146096 | ECCENTRIC PLANETARY TRACTION DRIVE SUPER-TURBOCHARGER - Disclosed are embodiments of eccentric planetary traction drives for use in a driven turbocharger. The eccentric planetary provides torque-based loading of the traction interfaces in the traction drive. A loading planet has a larger outer diameter and has translative movement when torque is applied to the traction drive so that it is forced into a wedge gap between the turbo shaft and outer ring of the planetary drive. The torque capacity of the traction drive increases with an increase of torque demand. | 05-26-2016 |
20160146114 | ENVIRONMENTAL AIR CONDITIONING SYSTEM - An environmental air conditioning system is described for conditioning compressed air for supply as conditioned air. The system includes an airflow path to which the compressed air for ultimate distribution as conditioned air (i.e., airflow path compressed air) is supplied. Then airflow path has various components of an air cycle system, and also includes a power turbine outside of the air cycle that receives compressed air and discharges it as exhaust. The power turbine transfers power to a compressor in the air cycle system. | 05-26-2016 |
20160146202 | OVERSHOOT REDUCTION ON PUMP CONTROLS - Proposed is a method for controlling pressure supplied by a hydraulic pump that includes determining whether there is an impending overshoot in a value of the pressure supplied by the hydraulic pump and engaging a peak and hold controller when it is determined that there is an impending overshoot in a value of the pressure supplied by the hydraulic pump, thereby reducing or eliminating supplied pressure overshoot. | 05-26-2016 |
20160146219 | FLUID HEAT EXCHANGE SYSTEMS - An electric pump can have a stator with a stator core defining a plurality of poles, a coil of electrically conductive material extending around each respective one of the plurality of poles, and a stator-cooling chamber, as well as an impeller coupled to a rotor. A first region can be at least partially occupied by the impeller and fluidicly coupled with the stator-cooling chamber to convey a working fluid from the first region into the stator-cooling chamber. The stator-cooling chamber can be configured to facilitate heat transfer from the stator core and/or the coils to the working fluid in the stator-cooling chamber. Cooling systems can incorporate such a pump. Related methods also are disclosed. | 05-26-2016 |
20160153434 | PUMPING DEVICE AND METHOD FOR CONVEYING VISCOUS MEDIA, IN PARTICULAR ADHESIVES | 06-02-2016 |
20160153439 | METHOD FOR PUMPING FLUID IN A FLUID SEPARATION DEVICE AND RELATED DEVICES AND SYSTEMS | 06-02-2016 |
20160153443 | SENSOR ASSEMBLY FOR MEASURING DYNAMIC PRESSURE IN RECIPROCATING PUMPS | 06-02-2016 |
20160153444 | MEMS FLUID PUMP WITH INTEGRATED PRESSURE SENSOR FOR DYSFUNCTION DETECTION | 06-02-2016 |
20160153445 | EQUAL ENTROPY BOOSTER | 06-02-2016 |
20160160850 | COAXIAL PUMPING APPARATUS WITH INTERNAL POWER FLUID COLUMN - A pump having an increased energy efficiency is provided. The pump has an internal power fluid column and a transfer piston which is reciprocatingly mounted about the power fluid column. The transfer piston defines a product fluid chamber, located above the transfer piston valve, and a transfer chamber, located below the transfer piston valve. The power fluid column has at least one passageway, which allows the fluid inside the power fluid column to be in communication with a power fluid chamber. The power fluid chamber, the transfer chamber, and the product chamber are situated coaxially about the power fluid column. | 06-09-2016 |
20160160882 | PORT GEOMETRY FOR PRESSURE EXCHANGER - A system includes a rotary isobaric pressure exchanger (IPX) for transferring energy from a high pressure fluid to a low pressure fluid, including a rotor that rotates circumferentially about a rotational axis and having a first end face and a second end face disposed opposite each other with a plurality of channels extending axially between respective apertures located in the first and second end faces. The system includes a first and second end cover with first and second surfaces that slidingly and sealingly engage the first and second end faces. The first and second end covers have at least one fluid inlet and outlet that rotate about the rotational axis and fluidly communicate with at least one channel of the plurality of channels. The fluid inlets have a plurality of apertures, where each aperture has a first leading edge that corresponds to a contour of at least one channel. | 06-09-2016 |
20160166755 | METHOD AND CONTROL APPARATUS FOR DETERMINING AND ADJUSTING A FLOW RATE OF A BLOOD DELIVERY PUMP | 06-16-2016 |
20160169215 | Magnetic Rotational to Linear Actuator for Well Pumps | 06-16-2016 |
20160169219 | PUMPS, PUMP ASSEMBLIES, AND METHODS OF PUMPING FLUIDS | 06-16-2016 |
20160169223 | LINEAR DISPLACEMENT PUMP WITH POSITION SENSING AND RELATED SYSTEMS AND METHODS | 06-16-2016 |
20160177938 | A METHOD OF CONTROL OF COMPRESSORS WITH MORE THAN TWO CAPACITY STATES | 06-23-2016 |
20160177940 | METHOD AND SYSTEMS FOR ENHANCING FLOW OF A FLUID INDUCED BY A ROD PUMPING UNIT | 06-23-2016 |
20160177942 | Pump Operation Procedure with Piston Position Sensor | 06-23-2016 |
20160185473 | PACKAGING MACHINE WITH A FLUID PUMP ASSEMBLY - The invention is directed to a packaging machine with a fluid pump assembly of the radial cylinder type, the assembly comprising a plurality of at least three pumps. Each pump has a piston guided in a cylinder, as well as a high pressure port and a low pressure port. A manifold is provided connecting the high pressure ports of a first group of first stage pumps so that the pumps of this first group are operatively connected in parallel, while at least one second stage pump is operatively connected to the first group of pumps in series. The invention is further directed to a method for generating a vacuum in a packaging machine with a fluid pump assembly. | 06-30-2016 |
20160186739 | COAXIAL PUMPING APPARATUS WITH INTERNAL POWER FLUID COLUMN - The present application relates generally to pumps, and more particularly to piston type pumps having increased energy efficiency, systems incorporating such piston type pumps, and methods of operating piston type pumps. | 06-30-2016 |
20160186756 | COMPRESSOR SYSTEM WITH VARIABLE BLOWDOWN CONTROL - A compressor system is disclosed with at least one fluid compressor for compressing a working fluid. At least one separator tank is structured to receive compressed working fluid from the compressor and separate air and lubricating fluid from the working fluid. A lubrication supply conduit is fluidly coupled between the separator tank and at least one compressor for supplying lubrication from the separator tank to the compressor. A blowdown pressure control valve is fluidly coupled to the separator tank. A controller is connected to the blowdown pressure control valve to control a pressure in the separator tank to a predetermined pressure at a compressor operating condition. | 06-30-2016 |
20160186764 | MULTI-STAGE COMPRESSOR WITH SINGLE ELECTRIC DIRECT DRIVE MOTOR - A compressor system includes an electric motor having a rotatable output shaft extending from either end thereof. The compressor system further includes multiple compression stages fluidly coupled to one another in series and mechanically connected to the output shaft. The first compressor stage includes two split impellers with each impeller discharging approximately one half of the fluid flow at a desired pressure to the second compressor stage. | 06-30-2016 |
20160195082 | SYSTEM AND METHOD FOR HEALTH MANAGEMENT OF PUMPING SYSTEM | 07-07-2016 |
20160201657 | Method for Improving Metering Profiles of Displacement Pumps | 07-14-2016 |
20160201658 | THERMAL COMPRESSOR | 07-14-2016 |
20160201664 | LONG-STROKE PUMPING UNIT | 07-14-2016 |
20160201672 | LOW PRESSURE SEALING LIQUID ENTRY AREA IN A COMPRESSOR TYPE LIQUID RING PUMP | 07-14-2016 |
20160252089 | ELECTRIC MOTOR DRIVEN PUMP | 09-01-2016 |
20160377068 | Hydraulic Drive Multi-Element Cryogenic Pump - A cryogenic fluid pump includes a plurality of pumping elements, each of the plurality of pumping elements having an actuator portion that is associated with and configured to selectively activate one end of a pushrod in response to a command by an electronic controller, an activation portion associated with an opposite end of the pushrod, and a pumping portion associated with the activation portion. For each of the plurality of pumping elements, the pumping portion is activated for pumping a fluid by the activation portion, which activation portion is activated by the actuator portion. The electronic controller is configured to selectively activate each of the plurality of pumping elements such that a flow of fluid from the cryogenic fluid pump results from continuous activations of the plurality of pumping elements at selected dwell times between activations of successive pumping elements. | 12-29-2016 |
20160377072 | PIEZOELECTRIC PUMP AND OPERATING METHOD THEREOF - A piezoelectric pump includes a piezoelectric element, a vibrating piece, a valve and a flow guiding member. The vibrating piece has a central zone attached to the piezoelectric element, a peripheral zone, a first recess, a stopper and a position limiting wall both protruding from the first recess, and a through groove disposed between the central zone and the peripheral zone and connected through the first recess. The valve is attached to the peripheral zone and has a non-straight through slit. The flow guiding member is attached to the valve and has a second recess and a channel both recessed in the flow guiding member, and a through hole. The channel is connected through the second recess and the through hole. A projection of the second recess projected on the plane which the valve exists covers the non-straight through slit. An operating method of a piezoelectric pump is further provided. | 12-29-2016 |
20170233080 | CABIN BLOWER SYSTEM | 08-17-2017 |
20170233994 | DUAL TAKE OFF SYSTEM | 08-17-2017 |
20170234308 | TRANSMISSION FOR PUMP SUCH AS HYDRAULIC FRACTURING PUMP | 08-17-2017 |
20180023555 | PUMP FOR OPERATION IN RADIOACTIVE ENVIRONMENT | 01-25-2018 |
20180023565 | PUMP ASSEMBLY HAVING INTEGRATED CONTROLLER AND MOTOR WITH INTERNAL ACTIVE COOLING | 01-25-2018 |
20190145396 | Microelectromechanical Systems Fabricated with Roll to Roll Processing | 05-16-2019 |
20190145400 | METHOD FOR REMANUFACTURING FLUID END BLOCK | 05-16-2019 |