Entries |
Document | Title | Date |
20080289693 | Diaphragm Valve for Irrigation Systems - A diaphragm valve for use in an irrigation system is disclosed that is adapted to reduce the water hammer effect, reduce debris in a flow path through a valve seat, improve bleed operation and/or reduce manufacturing and materials costs. | 11-27-2008 |
20080308157 | METHODS AND APPARATUS TO DETERMINE A POSITION OF A VALVE - Methods and apparatus to indicate a position of a valve are described. An example apparatus includes a first pressure sensor to detect an inlet pressure of a valve, a second pressure sensor to detect an outlet pressure of the valve, and a controller operatively coupled to the first pressure sensor and the second pressure sensor to determine a position of the valve corresponding to one of a plurality of predetermined operational states of the valve. | 12-18-2008 |
20090007967 | Method of Coating a Pipe Element or Device Used to Convey Gaseous Oxygen - The invention relates to a method of producing a device or an element belonging to a piece of equipment that is made from steel or a steel alloy, which may come into contact with pressurised oxygen during the use thereof. The inventive method consists in producing a coating by thermally spraying a spray material that is selected from among nickel and the alloys of copper and nickel on at least part of the surface of the element or device, such as to obtain at least one coating layer on said surface, having a thickness of less than or equal to 5 mm. | 01-08-2009 |
20090084447 | Diaphragm Based Spontaneous Inflation Inhibitor in a Pump for an Inflatable Prosthesis - A method of preventing inadvertent inflation of an implantable prosthetic includes biasing a valve assembly such that an outlet is substantially closed and using inadvertent pressure increases from the inlet to supplement the biasing of the valve assembly. It may further include the step of preventing fluid flow through the outlet by selectively varying fluid pressure within a bypass passageway having a first end which is in fluid communication with an inlet and a second end which is in fluid communication with a chamber. And, may also additionally include the step of displacing a flexible abutting wall disposed between the chamber and the valve assembly so that the abutting wall is caused to contact the valve assembly and urge the valve assembly into a closed position when the fluid pressure within the chamber exceeds a predetermined amount. | 04-02-2009 |
20090101213 | APPARATUS FOR CONTROLLING AND METERING FLUID FLOW - An orifice assembly includes a sleeve and a rod. The sleeve has a first axial end, a second axial end, an outer surface, and a bore that extends through the first and second axial ends. The second axial end defines a first opening and a second opening that extend from the outer surface into the bore. The rod includes a first portion and a second portion that is adapted for linear sliding movement in the bore of the sleeve. The second portion includes an end that cooperates with the first and second openings in the sleeve to define a first variable orifice and a second variable orifice. | 04-23-2009 |
20090126798 | Autonomous Shut-Off Valve System - A pipeline ( | 05-21-2009 |
20090139577 | METHOD OF USING TRIGGERABLE PASSIVE VALVES TO CONTROL THE FLOW OF FLUID - The present invention is directed to methods for controlling the flow of fluid and, more particularly, to a method of using triggerable passive valves to control the flow of fluid. In one embodiment of the present invention a method of using triggerable passive valves to control the flow of fluid is described wherein fluid is moved through a passive valve by providing pneumatic pressure between the passive valve and a flow restrictor, the pneumatic pressure exerted causing the pressure exerted by the fluid on the passive valve to exceed the burst pressure of the passive valve. | 06-04-2009 |
20090173390 | Method and a System for Enhanced Flow Line Control - A method for automatically controlling a flow in a flow line system including a flow line, a flow line inlet and outlet, and a control valve located in the flow line at the outlet. The method includes controlling the opening of the valve with a control unit. An outlet flow rate is measured or estimated from the flow line. The valve is opened. It is determined if a sudden drop occurs in any of the measurements or estimates. It is decided if a liquid blockage in the flow line is present or approaching. If a liquid blockage is indicated as present or approaching, the opening of the valve is increased by an amount determined by the measurements or estimates. Any further manipulation of the valve is inhibited before a non-zero time period has expired. The steps are repeated. Also a system and a computer program product. | 07-09-2009 |
20090178714 | FLOW CONTROL SYSTEM AND METHOD FOR MULTIZONE GAS DISTRIBUTION - A multizone gas distribution system configured to be coupled to a process chamber is described. The multizone gas distribution system comprises a first gas distribution element and a second gas distribution element. Additionally, the multizone gas distribution system comprises a flow control system configured to divide a flow of process gas between the first gas distribution element and the second gas distribution element. Further, a system controller coupled to the flow control system is configured to adjust the flow of process gas to the first gas distribution element and the second gas distribution element according to a target flow condition. Further yet, the system controller is configured to monitor the flow control system in order to perform at least one of monitoring a flow rate, adjusting a flow rate, controlling a flow rate, determining a fault condition, and determining an erroneous fault condition. | 07-16-2009 |
20090178715 | Pressure Relief Valve - A pressure relief valve for blown fibre closures is provided having constituent components fabricated from plastic. An adaptor is provided for connection to a blown fibre closure, and a body welded to this adaptor, is provided to enclose a piston and a spring within, such that they are protected from the ingress of silt and water. The piston is arranged to provide a double seal such that a pressure relief valve plug and an opening in the enclosing body are closed or opened simultaneously to prevent the ingress of silt and/or water on the one hand and the unhindered escape of pressurized fluid on the other. | 07-16-2009 |
20090250116 | FLOW RATE CONTROLLING APPARATUS - An apparatus for controlling a flow rate of fluid passing through a duct ( | 10-08-2009 |
20090260691 | CONSTANT FLOW VALVE MECHANSIM - A constant flow valve mechanism for use in an inkjet printer includes a valve. A first port, a second port, and a third port are in fluid communication with each other through the valve. A portion of the valve is moveable and associated with the first, second, and third ports to produce a change in fluid impedance between the first port and the second port and the first port and the third port such that the fluid impedance between the first port and the second port changes at the same rate and in an opposite direction as that of the fluid impedance between the first port and the third port. | 10-22-2009 |
20090301566 | ADJUSTABLE BACKFLOW PREVENTION DEVICE - A backflow prevention device is to be installed between various equipment drain lines and a drain cover or drain pipe. The backflow prevention device provides an air gap operable to prevent backflow of sewer waste into the drain lines. The device includes a drainage hub and a tubing mount attached to the drainage hub. The drainage hub defines a liquid flow conduit throw which liquid discharged from the drain lines can flow and can be connected to the drain. The tubing mount supports the drain lines in such a way that the drain line effluent is positioned to be in fluid connectivity with the upper opening of the liquid flow conduit at a vertically displaced position from the drainage hub. | 12-10-2009 |
20090308460 | ROCKER TYPE DIAPHRAGM VALVE - A rocker type diaphragm valve is disclosed. The diaphragm ( | 12-17-2009 |
20090320928 | MULTI-TRACK ROTARY VALVE IN COMBINATION WITH A PRESSURE REDUCER AND METHOD FOR OPERATING THE COMBINATION - A method for operating a multi-track rotary valve having plural tracks for the separate introduction to vessels of at least 3 feed streams and the separate recovery from the vessels of at least 3 product streams and for simultaneous change of the flow paths of the streams. At least one stream is selected and maintained at lower pressure than the other streams so that any leakage flows from the other streams to the at least one selected stream. | 12-31-2009 |
20090320929 | METHOD FOR CONTROLLING A COMPRESSED AIR INSTALLATION AND CONTROLLER AND COMPRESSED AIR INSTALLATION FOR EMPLOYING SUCH A METHOD - Method for controlling a compressed air unit which consists of several compressed air networks ( | 12-31-2009 |
20100024889 | Unidirectional Flow Device and Methods of Use - In some embodiments, apparatus for allowing one-way flow of fluid into or out of a tubular member includes a base pipe having at least one port formed therein. At least one valve is engaged with the base pipe, associated with at least one port and capable, at least temporarily, of allowing fluid flow in one direction and disallowing fluid flow in the opposite direction through the associated port(s). | 02-04-2010 |
20100043887 | BACKFLOW AND FLOW RATE CONTROL VALVE - A backflow and flow rate control system, comprising: a flow restrictor; a flow regulator chamber located down-stream of the flow restrictor; a control chamber configured to receive a portion of the fluid from a location upstream of the flow restrictor; a moveable element with no sliding parts positioned between the control chamber and the flow regulator chamber, wherein the moveable element is configured to move in response to a difference in pressure between the flow regulator chamber and the control chamber; a flow rate regulator configured to control the flow rate of the fluid in response to the movement of the moveable element; and a non-return regulator coupled with the moveable element and configured to control back-flow of the fluid. | 02-25-2010 |
20100071775 | SUBSEA SYSTEM AND METHOD FOR PROTECTING EQUIPMENT OF A SUBSEA SYSTEM - A subsea system comprises a wellbore within a reservoir, equipment downstream of the wellbore, and a barrier connected to the equipment. The equipment is rated for a maximum pressure that is less than a maximum reservoir pressure and equal to or greater than the maximum reservoir pressure less external hydrostatic pressure experienced by the equipment. The barrier is rated for a maximum pressure that is equal to or greater than the maximum reservoir pressure. | 03-25-2010 |
20100071776 | FLUID CONTROL VALVE SYSTEM AND METHODS - A diaphragm-type control valve having a diaphragm and a valve body is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. The diaphragm element and a port in the body together form an intermediate chamber that eliminates the need for a check-valve downstream of the valve. In one preferred embodiment, an inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member defining a groove in communication with the port. A diaphragm member having upper and lower surfaces is disposed within the chamber. The lower surface preferably includes a pair of spaced apart elongated members defining a channel therebetween. The diaphragm member engages the seat member placing the channel in communication with the groove to define an air seat in communication with the port. | 03-25-2010 |
20100089460 | VALVE, DEVICE AND METHOD FOR THE GENERATION OF A FLUID PULSE - The invention relates to a valve ( | 04-15-2010 |
20100101654 | GAS FLOW DEVICE - A gas regulator includes a housing and a pressure regulator positioned within the housing along a first axis for controlling the pressure of gas received from a pressurized source. A flow meter controls the flow rate of the gas received from the pressure regulator. The flow meter is positioned relative to the housing along a second axis, transverse to the first axis. An outlet nozzle member has a nozzle stem and is positioned along the first axis. The outlet nozzle member receives the gas from the flow meter and delivers the gas through the nozzle stem. | 04-29-2010 |
20100116348 | System And Method For Evacuating A Vacuum Chamber - A valve arrangement for a vacuum pump assembly selectively opens and closes communication between a vacuum pump, evacuation vessel, and a volume to be evacuated. The valve arrangement allows the evacuation vessel and any conduit connecting the vacuum pump and evacuation vessel to the volume to first be evacuated without providing a vacuum to the volume. The valve arrangement also allows the volume to be connected to the evacuation vessel but cut-off from the vacuum pump so that at initial stages of the evacuation process for the volume dead air contained within the volume may be communicated to the evacuation vessel rather than drawn out by the vacuum pump. Once the dead air, or portions thereof, has been removed from the volume, the valve arrangement may cut-off communication with the evacuation vessel, establish communication between the vacuum pump and the volume, and allow the vacuum pump to provide negative air pressure to the volume so that the volume may be evacuated. | 05-13-2010 |
20100139775 | FLOW RATE RANGE VARIABLE TYPE FLOW RATE CONTROL APPARATUS - A pressure type flow control device enabling a reduction in size and an installation cost by accurately controlling the flow of a fluid in a wide flow range. Specifically, the flow of the fluid flowing in an orifice ( | 06-10-2010 |
20100147394 | SYSTEM AND METHOD FOR DECENTRALIZED BALANCING OF HYDRONIC NETWORKS - A method includes associating a plurality of valve balancing units with a plurality of valves in a hydronic network. The method also includes adjusting a setting of at least one of the valves using at least one of the valve balancing units to balance the hydronic network. Adjusting the setting could include identifying a differential pressure across a valve and a flow rate of material through that valve. Adjusting the setting could also include comparing the identified differential pressure to a target differential pressure and/or the identified flow rate to a target flow rate. Adjusting the setting could further include instructing an actuator to adjust the setting until the identified differential pressure is within a first threshold of the target differential pressure and/or the identified flow rate is within a second threshold of the target flow rate. | 06-17-2010 |
20100206388 | RELIEF VALVE FOR A TURBOCHARGER - The invention relates to a relief valve comprising a first valve body ( | 08-19-2010 |
20100218829 | Diaphragm Valve With Electronic Pressure Detection - A flush valve for a waste water system comprises a valve including a fluid inlet, a fluid outlet and a main valve element adapted for movement to allow fluid flow between the fluid inlet and the fluid outlet based on a pressure differential across a portion of the main valve element. The valve also includes a vent system comprising a control chamber in flow communication with the fluid inlet of the valve and a vent outlet in flow communication with the fluid outlet of the valve, and a solenoid for venting fluid venting fluid from the control chamber to the fluid outlet. A pressure sensor, such as an electronic pressure transducer, senses the fluid pressure of fluid within the vent system. When a predetermined pressure threshold is reached or exceeded, the solenoid can be energized to release fluid from the control chamber. | 09-02-2010 |
20100224258 | CHECK VALVE WITH MODULATION AND/OR ANTI-OSCILLATION FEATURE - A check valve includes a modulation and/or anti-oscillation feature which, in one aspect, modulates the position of the check valve ball relative to the valve seat to maintain the ball in a continuous flow position allowing pressurized fluid flow past the ball while preventing contact between the ball and the valve seat. In another aspect, an increased mass is selectively coupled to or forms a part of the movable valve member to dampen oscillations of the movable valve member in an open fluid flow position without contact with the valve seat. | 09-09-2010 |
20100224259 | METHODS AND DEVICES FOR REDUCING WATER CONSUMPTION - New methods and devices for reducing water consumption by restricting the supply pressures at the water consumption points. | 09-09-2010 |
20100243065 | VALVE ASSEMBLIES AND RELATED SYSTEMS AND METHODS - Check valve assemblies and related methods are described. A valve assembly comprises a housing having at least a first inlet passage and an outlet passage. A flow channel is disposed within the housing, with at least a portion thereof extending inward from the first inlet passage. A first check member is disposed within the first inlet passage and is movable along the flow channel between a closed position in which the first check member is disposed against a first valve seat and an open position in which the first check member is spaced from the first valve seat. In varying examples, movement of the first check member from the closed position to the open position is unopposed. Optionally, the housing can include at least a second inlet passage wherein a second check member is disposed. In an example, the second check member is continuously biased toward a closed position. | 09-30-2010 |
20100263733 | DENTAL SYRINGE - A dental syringe may include a replaceable valve cartridge containing one or more valves which may use a seating surface and an opposing seating surface with a relative angle formed between the two surfaces. The relative angle allows for regulation of the flow of fluid. The replaceable valve cartridge may also include a system to remove a residual liquid from a tip of a dental syringe. Additionally, the replaceable valve cartridge may include a seal that prevents bleed-over of fluids. Further, the dental syringe may comprise a tip retention insert which may use either a pair of plates or a plurality of ball bearings to retain the dental syringe tips. An alternate embodiment of a valve may comprise features intended to reduce the force necessary to actuate the valve. A metering screw and/or flow-control groove with increasing depth may control of flow through the valve. | 10-21-2010 |
20100288368 | METHOD OF PUMPING FLUID THROUGH A MICROFLUIDIC DEVICE - A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port and an output port. The channel is filled with fluid and a pressure gradient is generated between the fluid at the input port and the fluid at the output port. As a result, fluid flows through the channel towards the output port. | 11-18-2010 |
20100288369 | Piping System And Control For Semiconductor Processing - A vacuum system for semiconductor fabrication. The system includes a vacuum chamber for performing a semiconductor fabrication process, a vacuum source, and a piping system fluidly connecting the vacuum chamber to the vacuum source. In one embodiment, the piping system is configured without a horizontal flow path section of piping. In some embodiments, the piping system includes a first piping branch and a second piping branch. The first and second piping branches preferably have a symmetrical configuration with respect to the vacuum source. In yet other embodiments, the first and second piping branches preferably each include a throttle valve. | 11-18-2010 |
20100294375 | SPEED CONTROL VALVE SYSTEM - A speed controller valve system for regulating an opening speed and a closing speed of a pressure reducing valve includes a first inlet couplable to a main valve inlet of a pressure reducing valve. An outlet is couplable to a power chamber of the pressure reducing valve to control a flow of fluid between the outlet and the power chamber to control an opening and/or a closing of the pressure reducing valve. An interior chamber connects the first inlet and the outlet. The chamber receives a resilient member connected to a tapered valve poppet received in the first inlet and moveable in response to a flow of fluid at a pre-set pressure from the main valve inlet to the first inlet. The poppet is located in the chamber and the resilient member includes a resiliency to regulate an amount of movement of the poppet at the pre-set pressure to regulate a flow between the first inlet and the power chamber of the pressure reducing valve. | 11-25-2010 |
20100294376 | TWO-WAY ACTUATOR AND METHOD - Disclosed herein is a two-way actuator. The actuator includes, a tubular, movably positionable within a structure between at least a first position and a second position, the tubular having a first density selected such that buoyancy forces urge the tubular toward the first position in response to submersion of the tubular within a fluid having a second density that is greater than the first density, and at least one flow resistor disposed at the tubular configured to urge the tubular toward the second position in response to fluid flow interacting with the at least one flow resistor. | 11-25-2010 |
20100319784 | FLOW RESTRICTOR - The invention relates to a flow restrictor ( | 12-23-2010 |
20100326533 | FLOW CONTROL VALVE AND METHOD OF USE - A multistage, pilot-operated pressure regulator for pressure adjustment and/or back pressure relief and/or differential pressure or flow control applications comprises a diaphragm and a plurality of plates, including a throttle plate and at least one flow control plate. In at least one embodiment, the throttle plate includes a sloped upper surface for contacting the diaphragm, and a plurality of apertures residing within a plurality of concentric rows. In addition, in at least one embodiment, at least one flow control plate is positioned downstream of the throttle plate, the at least one flow control plate including a plurality of apertures residing within a plurality of concentric rows. A method of controlling the flow of fluid in a conduit is also provided. | 12-30-2010 |
20110005605 | LIQUID DELIVERY CONTROL METHOD AND LIQUID DELIVERY CONTROL SYSTEM - The present invention provides a liquid delivery control method for delivering a liquid | 01-13-2011 |
20110017309 | PUMP WITH INTEGRAL CAISSON DISCHARGE - A caisson for submersible pumps and method of operating a pump that is fluidly cooperative with the caisson. The pump discharge and the caisson are fluidly coupled to one another such that upon discharge of a fluid being pumped, the caisson acts as the fluid conduit, thereby removing the need for redundant riser pipes. In one form, the pump is a seawater lift pump for use with floating production storage and offloading (FPSO), offshore platforms or related structures. | 01-27-2011 |
20110023969 | WATER SAVING DEVICE AND METHOD OF USING SAME - A water saving device and method of using same disclosed in the present invention, wherein the water saving device comprising a sleeve ( | 02-03-2011 |
20110079288 | METHOD AND APPARATUS FOR PREVENTING ENERGY LEAKAGE FROM ELECTRICAL TRANSMISSION LINES - Apparatus for preventing energy leakage from a transmission line treats the line as a “partially closed” vessel. A gas stream with a pressure slightly different from ambient pressure is provided to the interior of the transmission line and a conduit that allows gas to pass between the transmission line and the ambient environment is provided. The gas flow rate at the conduit is then detected and monitored. If the flow rate falls outside a predetermined threshold, an electrical energy leakage is indicated. In another embodiment, the pressure of the input gas to the transmission line is continuously checked by a pressure switch, which will detect a change in pressure if the transmission integrity is compromised and disable the energy source. | 04-07-2011 |
20110083750 | METHOD FOR OPERATING A HYDRAULIC ACTUATION POWER SYSTEM EXPERIENCING PRESSURE SENSOR FAULTS - A method for operating a hydraulic actuation system during a pressure sensor malfunction is provided. The hydraulic actuation system includes a pump, a reservoir, a first work-port and a second work-port, a valve system with individual orifices, a pressure sensor system, and a controller for regulating the hydraulic actuation system based on fluid flow demand and on determined pressure differences. The method includes detecting a malfunction of a pressure sensor for the first work-port, closing second and third orifices, and regulating the pump to generate fluid flow corresponding to maximum pressure generated by the pump. The method also includes assigning a value for the difference between pump pressure and the pressure of the subject work-port that is equivalent to a value within an attainable range for difference between the two pressures. Furthermore, the method includes regulating a first orifice and a fourth orifice in response to the fluid flow demand. | 04-14-2011 |
20110094595 | METHOD OF OPERATING A CONTROL VALVE ASSEMBLY FOR A HYDRAULIC SYSTEM - A method of operating a control valve assembly for a hydraulic system includes detecting the current operation of a first position sensor and a second position sensor to determine if at least one of the first position sensor and the second position sensor is inoperable. A pressure of the fluid at a first work port and a second work port is measured, and one of a first valve and a second valve is actuated when one of the first position sensor and the second position sensor is determined to be inoperable. The first valve is actuated based upon the fluid pressure measured at the second work port to adjust the flow of the fluid through the first work port. The second valve is actuated based upon the fluid pressure measured at the first work port to adjust the flow of the fluid through the second work port. | 04-28-2011 |
20110100474 | PRESSURE CONTROL DEVICE - A method for at least providing at least a first and a second assembly for manufacturing, respectively, a first reference pressure chamber ( | 05-05-2011 |
20110108126 | METHOD AND APPARATUS FOR GAS FLOW CONTROL - A method and apparatus for self-calibrating control of gas flow. The gas flow rate is initially set by controlling, to a high degree of precision, the amount of opening of a flow restriction, where the design of the apparatus containing the flow restriction lends itself to achieving high precision. The gas flow rate is then measured by a pressure rate-of-drop upstream of the flow restriction, and the amount of flow restriction opening is adjusted, if need be, to obtain exactly the desired flow. | 05-12-2011 |
20110108127 | LIQUID FLOW MEASURING DURING BUOY-LOADING - The invention relates to a method for measuring and controlling a fluid flow in a pipe system for liquid transport, such as oil flow during buoy loading, wherein there in each end of a the pipe system is spliced in a sensor ( | 05-12-2011 |
20110108128 | VACUUM TREATMENT APPARATUS AND GAS SUPPLY METHOD - In a vacuum treatment apparatus according to an embodiment of the present invention, a control means performs, when treatment in a vacuum vessel using a flammable gas (step S | 05-12-2011 |
20110108129 | SYSTEM AND METHOD FOR DECREASING VOC IN CRUDE OIL TANKER - A system for decreasing volatile organic compounds (VOC) in a crude oil tanker includes: a supply pipe horizontally installed over a crude oil storage tank of the crude oil tanker and having an end connected to a crude oil storage tank on land; a load pipe vertically connected to a bottom surface of the supply pipe, vertically passing through the crude oil storage tank of the crude oil tanker, and communicating with a lower part of the crude oil storage tank; a distribution pipe horizontally connected to a lower end of the load pipe; and a pressure control unit installed at a lower end portion of the load pipe. | 05-12-2011 |
20110114191 | AUTOMATED VALVE TESTING APPARATUS - A method for partially stroking an emergency valve apparatus is provided. The emergency valve apparatus comprises an actuator ( | 05-19-2011 |
20110120566 | DISCONTINUOUS SWITCHING FLUID FLOW RATE CONTROL METHOD USING PRESSURE TYPE FLOW RATE CONTROL DEVICE - A fluid flow rate control method is provided that uses a flow rate range variable type pressure type flow rate control device provided with at least two or more parallel fluid passages disposed between the downstream side of a control valve of the control device and a fluid supply pipe passage, and orifices having different fluid flow rate characteristics are respectively interposed in parallel fluid passages to pass fluid in a first flow rate region through one orifice for flow rate control, and to pass fluid in a second flow rate region through at least another orifice for flow rate control. Flow rate characteristics of the respective orifices are selected so that a maximum controllable flow rate of fluid in the first flow rate region at low flow rate is smaller than 10% of a maximum controllable flow rate in the second flow rate region at high flow rate. | 05-26-2011 |
20110139260 | Proportional Motion Control Valve - A proportional motion control valve includes an electro-mechanical actuator that provides an infinitely controlled pressure setting in response to an electric signal applied to the electro-mechanical actuator. In another aspect, a proportional motion control valve includes a pilot-operated valve disposed intermediately with respect to a cage and a valve body to fluidly isolate an internal cavity of the valve body from a bore of the cage. The pilot-operated valve is subjected to a hydraulic opening force of pilot fluid that is present in the bore of the cage. A spring is disposed within the internal cavity of the valve body and arranged to subject the pilot-operated valve to a closing spring force. | 06-16-2011 |
20110139261 | METHOD AND DEVICE FOR CONTROLLING A TANK VENTILATION DEVICE FOR A MOTOR VEHICLE - A method for controlling a tank ventilation device ( | 06-16-2011 |
20110174383 | FIREFIGHTING MONITOR - A firefighting monitor includes logic circuitry for determining the reaction force caused by the flow of firefighting fluid therethrough. The reaction force may be communicated to structures remote from the monitor for taking appropriate actions in response to the reaction forces exceeding one or more criteria. The monitor may also use flow and nozzle data for calculating a reach of the stream of the fluid, and may transmit this reach data to a remote location. The monitor may also utilize multiple pressure sensor transducers positioned inside the monitor for determining the rate of fluid flow, rather than a paddle wheel-type sensor. | 07-21-2011 |
20110220214 | Counter-Biased Valve and Actuator Assembly - A valve actuator assembly, counter-biased by a working fluid (or gas) pressure, is disclosed. The valve actuator assembly comprises a valve and a pneumatic or hydraulic actuator. A port is defined axially through the valve and actuator that communicates a working fluid (or gas) pressure acting on the valve face to a counter-biasing chamber inside an actuator housing. This design eliminates, reduces, or overcomes a force acting on a face of the valve by communicating a common working pressure of the fluid (or gas) to a substrate on the actuator with a resultant force vector opposite the valve face. | 09-15-2011 |
20110220215 | HYDRO-GENERATOR SOFT START - A mechanism for minimizing shock in a fluid has a housing, a valve disposed in the housing for regulating a flow of the fluid, a spring that urges the valve to oppose the fluid flow, and, a reservoir disposed in the housing downstream of the valve. The valve meters the flow of fluid from the reservoir if the valve moves in reaction to the flow of the fluid. | 09-15-2011 |
20110232770 | Irrigation System Leak Controller and Method - A device and method for preventing leak losses in irrigation system zones is disclosed, wherein the device and method monitor a fluid flow characteristic to detect leak conditions, and automatically close off fluid flow to a zone in which a leak condition is detected. | 09-29-2011 |
20110272035 | Method For Fluid Flow Containment In An Open Liquid Environment - A method is provided for fluid flow containment in an open liquid environment at least partially defined by a surface. The method includes the step of positioning a microfluidic device over the surface. The microfluidic device defines a chamber having a height. A flow of fluid is applied in the chamber. The pressure of the flow of fluid is monitored and the height of the chamber is determined from the measured pressure of the flow of fluid. | 11-10-2011 |
20110277847 | FLOW CONTROL METHOD FOR MULTIZONE GAS DISTRIBUTION - A method of supplying and controlling the flow of a process gas to a process chamber. The method includes initiating a known flow rate of a process gas to a process chamber, dividing the known flow rate of the process gas into a first flow of the process gas at a first flow rate and a second flow of the process gas at a second flow rate, measuring a first pressure associated with the first flow of the process gas, measuring a second pressure associated with the second flow of the process gas, and controlling the first flow rate and the second flow rate according to a target flow condition by adjusting a first conductance of the first flow of the process gas and a second conductance of the second flow of the process gas and monitoring the first pressure and the second pressure. | 11-17-2011 |
20110303299 | Device and method for regulating the gas supply or the gas transport in a gas storage system - A device for regulating the gas supply in a gas storage system of a biogas system, wherein the gas storage system has gas stores connected in series in a cascade-like manner with an intermediate chamber between a gas store membrane and a protective cover. The device comprises gas supply mechanisms, intermediate chamber pressure measuring mechanisms and at least one regulating mechanism, each gas store is assigned at least one gas supply mechanism, each gas store is assigned at least one intermediate chamber pressure measuring mechanism with which the gas pressure in the intermediate chamber of the respective gas store can be measured, and the measured values of the intermediate chamber pressure measuring mechanisms are transmitted to at least one regulating mechanism, and the regulating mechanism is designed to regulate the gas pressure in the intermediate chambers of the gas stores by controlling the gas supply mechanisms assigned to gas stores. | 12-15-2011 |
20120000543 | METHOD AND DEVICE FOR ACTIVELY SUPPRESSING PRESSURE OSCILLATIONS IN A HYDRAULIC SYSTEM - In a method and a device for actively suppressing pressure oscillations or pressure pulses in a hydraulic system of a cold or warm roll train or a strip treatment installation, the following method steps are carried out: a) detection of a pressure signal by means of a pressure sensor by permanent measurement of a pressure in the hydraulic system; b) determination of an alternating component of the pressure signal; c) determination of at least one temporally changing actuating variable in real time with the aid of a regulator, taking at least one setpoint value and the alternating component into consideration; d) loading of at least one actuator with the actuating variable, the actuator changing a volume which corresponds to the actuating variable and is connected to the hydraulic system, as a result of which the pressure oscillations in the hydraulic system are suppressed. | 01-05-2012 |
20120006416 | MECHANICAL FUSE TO SEAL PIPES UPON UNINTENDED RUPTURE - The present invention relates to a mechanical fuse to seal pipes upon unintended rupture. When a pressure difference between a first pressure and a second pressure in a pipe is below a pressure threshold, a first spring retains a flap in a first position allowing gaseous fuel to flow from a first portion to a second portion and when the pressure difference between the first pressure and the second pressure is not below the pressure threshold the flap moves to a second position preventing the gaseous fuel from flowing from the first portion to the second portion. | 01-12-2012 |
20120006417 | SYSTEM AND METHOD FOR HYDRAULICALLY MANAGING FLUID PRESSURE DOWNSTREAM FROM A MAIN VALVE BETWEEN SET POINTS - A system for hydraulically managing fluid pressure between selected set points includes a pilot control system operably coupled to a main valve. The pilot control system includes at least one fluid conduit, a variable orifice assembly, and a control pilot valve apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points. | 01-12-2012 |
20120006418 | SYSTEM AND METHOD FOR HYDRAULICALLY MANAGING FLUID PRESSURE DOWNSTREAM FROM A MAIN VALVE - A system and method for controlling fluid pressure downstream a main valve includes associating a variable orifice with the main valve such that the variable orifice opens as the main valve is opened and closes as the main valve is closed. A fluid stream taken from a fluid inlet of the main valve is passed to an inlet of the variable orifice. A fixed orifice is in fluid communication with an outlet of the variable orifice. A pressure differential between the inlet and outlet of a fixed orifice is detected by a control pilot device, which hydraulically opens or closes the main valve in response to the detected fixed orifice pressure differential between low pressure and high pressure set points. | 01-12-2012 |
20120090689 | SYSTEM AND METHOD FOR OPERATING A DRAIN VALVE - A drain valve includes a valve body that defines an inlet seat and a first outlet seat downstream of the inlet seat. A first member has a first position in sealing engagement with the first outlet seat and a second position separated from the first outlet seat. A second member has a first location in sealing engagement with the inlet seat. A sensor downstream of the inlet seat generates a signal reflective of a pressure downstream of the inlet seat. A method for operating a drain valve includes moving a first element in a valve body to allow fluid flow through the valve body, moving a second element in the valve body to allow fluid flow through the valve body, and sensing a pressure in the valve body. | 04-19-2012 |
20120090690 | Method and Device for Controlling a Hydraulic System - A method and a device for controlling a load sensing hydraulic system, having a bypass valve (F), which is controlled by a pump pressure (P) and which when the hydraulic system is in operation diverts a pump flow of hydraulic fluid to a tank (E). The bypass valve (F) is pre-stressed towards a closed position and is put on load by the pump pressure (P) towards an open position against the action of the pre-stress. When the hydraulic system operates in a idling operation a first pre-stress element (I) limits the pre-stress to a first pressure and upon activation of the hydraulic system, a pressure regulator ( | 04-19-2012 |
20120152368 | Independent Metering Valve with Flow Limiter - An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition. | 06-21-2012 |
20120167993 | FUEL PRESSURE CONTROL SYSTEM AND METHOD HAVING A VARIABLE PULL-IN TIME INTERVAL BASED PRESSURE - A system and method for controlling fuel pressure in a fuel delivery system. The system includes a fuel pump and an inlet control valve. The inlet control valve is operated to a closed state by an electrical signal applied to the inlet control valve. The electrical signal includes a pull-in portion of the electrical signal that is applied to the inlet control valve having a pull-in time interval that is varied based on the fuel pressure. By varying the pull-in time interval to control fuel pressure, electrical energy consumed and acoustic noise generated by the fuel delivery system are reduced. | 07-05-2012 |
20120167994 | FLUIDIC OSCILLATORS FOR USE WITH A SUBTERRANEAN WELL - A well tool can comprise a fluid input, a fluid output and a fluidic oscillator which produces oscillations in a fluid which flows from the input to the output. The fluidic oscillator can include a vortex chamber with inlets, whereby fluid enters the vortex chamber alternately via the inlets, the inlets being configured so that the fluid enters the vortex chamber in different directions via the respective inlets, and a fluid switch which directs the fluid alternately toward different flow paths in response to pressure differentials between feedback fluid paths. The feedback fluid paths may be connected to the vortex chamber. The flow paths may cross each other between the fluid switch and the outlet. | 07-05-2012 |
20120180875 | FLOW LIMITER - A flow limiter for limiting a volumetric flow through a liquid line, comprising a carrier having a passage and a flat spring attached to the carrier. The flat spring has a spring tongue and the passage has an opening, wherein the spring tongue is above the opening such that the spring tongue increasingly lies against the carrier as differential pressure rises, thereby reducing the opening and continuously reducing the passage within a defined pressure range. A body is arranged upstream of the spring tongue, or the spring tongue is oriented in the flow direction so that the spring tongue offers a direct contact surface to a substantially reduced flow cross-section. Thus the spring tongue is deflected, or rested against the carrier, to a lesser extent at low differential pressure values so that at a low differential pressure, a constant volumetric flow rate and an expanded operating range having a constant volumetric flow rate is achieved. | 07-19-2012 |
20120211087 | METHOD AND SYSTEM FOR FUEL VAPOR CONTROL - Methods and systems are provided for monitoring a fuel vapor recovery system including a fuel tank isolation valve coupled between a fuel tank and a canister. During selected conditions, the valve is modulated and pressure pulsations in the fuel vapor recovery system are monitored. Valve degradation is identified based on correlations between the valve modulation and the resultant pressure pulsations. | 08-23-2012 |
20120222749 | FLUID ACTIVATED FLOW CONTROL APPARATUS - Embodiments of a fluid flow regulating device and methods of using the same are described. Certain embodiments manages fluid flow between one or more input ports and output ports at least partly in response to fluid pressure changes and/or by a mechanism driven by fluid flow, optionally without using electrical power. | 09-06-2012 |
20120227822 | ASSEMBLY FOR REDUCING SLURRY PRESSURE IN A SLURRY PROCESSING SYSTEM - An assembly ( | 09-13-2012 |
20120285546 | TAPERED THROTTLING VALVE - The invention relates to a throttling valve comprising a fluid inlet ( | 11-15-2012 |
20120285547 | PRESSURE REDUCER - A pressure reducer having a high-pressure inlet, a low-pressure outlet and a valve having a valve seat and a valve plunger, which interacts therewith and can be displaced in a direction of displacement. When displaced away from the valve seat, the valve plunger opens a first path between the high-pressure inlet and the low-pressure outlet. The pressure reducer furthermore includes a second path, which connects the high-pressure inlet and the low-pressure outlet, a first control valve, which is arranged in the course of the second path, and a first effective area of the valve plunger, which is arranged in the course of the second path and is aligned in such a way that a first control pressure acting thereon results in a first force on the valve plunger in the direction of displacement. | 11-15-2012 |
20120291873 | Hydraulic circuit - A hydraulic circuit and method includes a valve subsystem between a high pressure source, a medium pressure source, a low pressure return, and an actuator. The valve subsystem is configured and controllable to drive the actuator using the high pressure hydraulic fluid or the medium pressure hydraulic fluid and also to direct low pressure hydraulic fluid exiting the actuator to the low pressure return. A controller is responsive to high pressure criteria and medium pressure criteria associated with the actuator and is configured to operate the valve subsystem to present high pressure hydraulic fluid to the actuator in response to high pressure criteria and to present medium pressure hydraulic fluid to the actuator in response to medium pressure criteria. | 11-22-2012 |
20120318367 | VALVING SYSTEM AND METHOD OF INJECTING CHEMICALS - A valving system includes, a plurality of flow control valves, a plurality of chemical injection devices, and a control line in selective operable communication with at least one of the plurality of flow control valves and at least one of the plurality of chemical injection devices. | 12-20-2012 |
20120318368 | LEAK DETECTION LOGIC FOR CLOSED-VOLUME SYSTEM - A method for detecting a leak in a closed-volume liquid system comprises circulating a fluid through a closed-loop with a pump having a reservoir and that is driven by an electric motor. The method also comprises sensing a pressure in the closed-loop, sensing current draw by the motor and sensing fluid level in the reservoir. The method further comprises determining a presence of a leak of fluid from the closed-loop based upon two of the sensed signals using a first leak detection logic, and determining the presence of a leak of fluid from the closed-loop based upon at least one of the sensed signals using a second leak detection logic. | 12-20-2012 |
20120325331 | Pressure Regulator Valve Replacement Assembly - A pressure regulator valve replacement assembly for maintaining a flow of transmission fluid to various fluid circuits within a Honda automatic transmission during low torque operation of a torque converter is disclosed. To accomplish this, the pressure regulator valve replacement assembly includes a valve piston subassembly having control diameters, and a valve chamber containing a check ball. | 12-27-2012 |
20130000740 | Flow Control Screen Assembly Having Remotely Disabled Reverse Flow Control Capability - A flow control screen having a flow path between the interior of a base pipe and a filter medium. A valve assembly, including a valve plug, a ball retainer and a piston body with a collet assembly is disposed within the flow path in an opening of a housing disposed about the base pipe. The collet assembly is radially outwardly constrained by a radially reduced section of the opening in a first position preventing entry of the valve plug therein and radially outwardly unconstrained by the radially reduced section in a second position. Reverse flow is initially prevented as internal differential pressure seats the valve plug on a seat of the opening and causes the piston body to shift to the second position upon reaching a predetermined threshold. Thereafter, external differential pressure causes the valve plug to enter the piston body and contact the ball retainer, thereby allowing reverse flow. | 01-03-2013 |
20130000741 | FLUID LEVEL SENSOR - In at least some implementations, a fluid level sensor for sensing the level of a fluid within a tank includes a fluid tube through which fluid flows under pressure, a pressure pulse inducer, a fluid level responsive member and a pressure sensor. The pressure pulse inducer is disposed within the fluid tube so that at least some of the fluid flowing through the fluid tube engages the pressure pulse inducer. The fluid level responsive member is operably associated with the pressure pulse inducer to provide a force on the pressure pulse inducer that varies as a function of the fluid level in the tank. And the pressure sensor at senses the pressure of the fluid flowing through the tube, where the pressure pulse inducer induces changes in the pressure of the fluid as a function of the fluid level and the changes in pressure are sensed by the pressure sensor. | 01-03-2013 |
20130008518 | Water Supply Control System - A water supply control system for use with a fire hydrant comprises a four-way valve assembly having a first inlet port for coupling to a nozzle of the fire hydrant via a fire hose, the four-way valve assembly operable to selectively open and close the inlet and outlet ports according to an operating mode of the four-way valve assembly, a stable and sturdy platform substantially supporting the weight of the four-way valve assembly, a flexible tether strap secured to the platform at a first end and having a fastener at a second end for releasably coupling to the fire hydrant, a status indicator mounted on the four-way valve assembly operable to provide a visual indication of the operation mode of the four-way valve assembly, and a scene light mounted on the four-way assembly operable to provide high-intensity illumination. | 01-10-2013 |
20130014827 | ROTARY UNION UTILIZING VACUUM EXTRACTION - A rotary union including a housing, a piston, and a shaft is provided. The piston has a first fluid passage therethrough and is configured to slide axially between a first position and a second position. The shaft has a second fluid passage therethrough and is configured to rotate. A first port is arranged in the housing and is in fluid communication with a cavity formed between the housing and the piston. The first port is configured to deliver a pressurized fluid into the cavity to actuate the piston from the first position to the second position. A chamber is formed in the housing and surrounds an interface between the first and second fluid passages. A second port arranged in the housing is in fluid communication with the chamber. The second port is configured to apply a vacuum to the chamber to evacuate fluid leaked into the chamber from the interface. | 01-17-2013 |
20130019955 | DIFFERENTIAL PRESSURE VALVE WITH REDUCED SPRING-SURGE AND METHOD FOR REDUCING SPRING SURGE - Disclosed is a differential pressure valve comprising: a valve body, the valve body having at least one flow inlet and one flow outlet: at least one shutter, the shutter being movable between an open position and a closed position under a differential pressure across the valve; at least one flow passage from the flow inlet to the flow outlet; at least one biasing member configured to bias the shutter towards a closed position so as to block the flow passage through the flow inlet. The biasing member is a non-linear biasing member. | 01-24-2013 |
20130092245 | AIRCRAFT HYDRAULIC AIR BLEED VALVE SYSTEM - An aircraft hydraulic air bleed valve system having an air vent valve connected to an electronic controller where the opening of the air vent valve is permitted only when the aircraft is in a pre-determined flight mode where the aircraft flight mode is determined by a gyroscope connected to the controller. | 04-18-2013 |
20130098463 | METERLESS HYDRAULIC SYSTEM HAVING SHARING AND COMBINING FUNCTIONALITY - A hydraulic system is disclosed. The hydraulic system may have a unidirectional variable displacement first pump, a first hydraulic actuator connected to the first pump via a closed-loop first circuit, a unidirectional variable displacement second pump, and a second hydraulic actuator connected to the second pump via a closed-loop second circuit. The hydraulic system may also have a third pump selectively connectable in closed-loop manner to the first or second circuits, and a first valve disposed between the first hydraulic actuator and the first pump and configured to selectively direct fluid from the first circuit to the second and third pumps. | 04-25-2013 |
20130098464 | Closed-Loop Hydraulic System Having Regeneration Configuration - A hydraulic system is disclosed that has first and second passages connecting a pump to an actuator in closed-loop manner, and first and second load-holding valves within the first and second passages. The hydraulic system may also have a regeneration valve connected to the first and second passages between the actuator and the first and second load-holding valves to selectively connect the first and second passages. The hydraulic system may further have a controller configured to cause a control valve to simultaneous move the first and second load-holding valves toward flow-blocking positions when pump displacement is about zero. The controller may also be configured to selectively cause the regeneration valve to connect the first and second passages when pump displacement is non-zero, and to cause only one of the first and second load-holding valves to move to its flow-blocking position when the regeneration valve connects the first and second passages. | 04-25-2013 |
20130098465 | Valve Body Fluid Rerouting System - There is provided a fluid rerouting system for valve bodies that use hydraulic pressure, via a balance pressure line, to move spools. In an exemplary embodiment, the system comprises a valve sleeve having a plurality of ports that are substantially aligned with a plurality of fluid connections in the mating bore, except that no valve sleeve port aligns with the balance pressure line. The system also includes a spool having a plurality of lands that are sized and configured to fit slidably in said valve sleeve. The combination of the valve sleeve and at least one of the lands form a chamber, fluid access to which is via an aperture traversing the land. Means for blocking the access of said balance pressure line to said valve sleeve are also included. | 04-25-2013 |
20130104997 | Method And System For Controlling Fluid Flow From A Storage Tank Through A Supply Line To An End User | 05-02-2013 |
20130118595 | Pressure Regulating Device and Method of Operating a Pressure Regulating Device - A pressure regulating device has a pressure regulating valve with a valve casing and a regulating unit which is movable relative to the former. The regulating unit contains an actuation element which may be moved by a control pressure, and two first and second closing members, each spring-biased in a closed position, which may be switched by the actuation element. The connection between a primary port and a secondary port is controlled by the first closing member. Fixed immovably to the actuation element is a restrictor element which is moved into a restriction position when the actuation element is so positioned that the first closing member is normally moved into its closed position. If, because of a fault, the first closing member is not moved into the closed position, only a very small amount of pressure medium flows to the secondary port, so that consequential damage may be avoided. | 05-16-2013 |
20130118596 | GAS FLOW SYSTEM, DEVICE AND METHOD - A gas flow device and method are provided for controlling the flow of gases into a process chamber. The gas flow device includes one of more pressure reduction stages, a metering valve, a pressure gauge, and a control system. the gas flow device provides a steady and stable flow of gas from a gas source to a process chamber held at sub-atmospheric pressure. | 05-16-2013 |
20130118597 | LIQUID DELIVERY SYSTEM - A liquid delivery system and method move an air impermeable membrane adjacent a liquid chamber in response to withdrawal of liquid from the chamber to move a plunger. The plunger moves between a first position fluidly connecting a fluid source and a fluid actuated valve to open the valve and supply liquid to the liquid chamber and a second position blocking connection of the fluid source and the fluid actuated valve. | 05-16-2013 |
20130126002 | SYSTEM AND PROCESS FOR EQUALIZATION OF PRESSURE OF A PROCESS FLOW STREAM ACROSS A VALVE - According to one embodiment, a system and process for the equalization of pressures of a flow stream across one or more valves is provided. A process circuit having clean non-abrasive fluid and at least one slave cylinder for transmitting pressure to a process flow stream is employed. | 05-23-2013 |
20130139899 | SEMIPERMANENTLY CLOSED MICROFLUIDIC VALVE - A microfluidic valve operable to semi-permanently close a channel of a microfluidic device defined between a thermoplastic elastomer (TPE) film and a substrate operates employs a surface contact bond between the TPE and a wall of the channel. Thermomechanical release of the valve, tristate functionality, and repeated semi-permanent closure and release are demonstrated. | 06-06-2013 |
20130146147 | GLASS BULB THERMALLY-ACTIVATED PRESSURE RELIEF DEVICE, SAFETY INSPECTION METHOD, AND EQUIPMENT - A method and apparatus to periodically inspect and control piston movability are provided that can include using a contactless sensor system through a gas outlet port of a pressure relief device. By moving a stop, relative movement of the piston can be compared to the fixed body reflecting a movability or a blocking of the release piston. Inductive/magnetic or optical borescope sensors can detect piston movement through the gas outlet, for example. The activation function where the piston must move when activated can therefore be tested and maintained. | 06-13-2013 |
20130186472 | ELECTRONIC LOAD DROP PROTECTION FOR HYDRAULIC FLUID SYSTEM - A method of controlling a valve includes detecting a supply pressure at a fluid source and detecting a first port pressure at a first side of a piston. A controller actuates the valve from a closed position to a first open position when the supply pressure is in excess of the first port pressure. Thereafter, the controller actuates the valve to the closed position when the supply pressure is less than the first port pressure. | 07-25-2013 |
20130199618 | ACTIVE VORTEX CONTROL SYSTEM (AVOCS) AND METHOD FOR ISOLATION OF SENSITIVE COMPONENTS FROM EXTERNAL ENVIRONMENTS - An active vortex control system (AVOCS) includes a set of primary injectors that inject gas into a cavity to generate a vortex in front of and possibly around components inside the cavity. The vortex interferes with an external flow field in an opening to the cavity to protect the components from the external environment. Sets of secondary injectors may inject gas at a reduced mass flow into the cavity to compensate for energy losses to maintain the coherence of the vortex. The AVOCS is well suited for use in windowless endo- and exo-atmospheric interceptors to protect the electro-optical imagers and optical components from Earth atmosphere. | 08-08-2013 |
20130199619 | METHOD AND APPARATUS FOR DEACTIVATING A HYDRAULIC DEVICE THAT IS LEAKING HYDRAULIC OIL - A method of deactiving an underwater hydraulic device provides a hydraulic device that is capable of being operated under water, the device having a hydraulic cylinder with a pushrod and a piston. The device is lowered below a water surface with a hose reel that is located at the water surface area such as on a marine vessel. The hose reel includes first and second hydraulic hoses that connect to the cylinder on opposing sides of the piston. Fluid flow in the first and second hydraulic hoses is continuously monitored. The ratio of the volume of fluid flowing into the cylinder from one side of the piston to the volume of fluid flowing into the cylinder from the other side of the cylinder is continuously calculated with a computer or controller. The hydraulic device is deactivated if the ratio varies from a preset value. One embodiment includes a plurality of flow meters for measuring fluid flow to and from one or more hydraulicly powered apparatuses. In one embodiment outputs of the flow meters are analyzed to determine if the hydraulic system has a leak, and if a leak is detected, a warning is issued and/or one or more of the connected hydraulically powered apparatuses are shut down, and/or the hydraulic power supply is shut down. | 08-08-2013 |
20130206242 | FLUID ACTIVATED FLOW CONTROL APPARATUS - Embodiments of a fluid flow regulating device and methods of using the same are described. Certain embodiments manages fluid flow between one or more input ports and output ports at least partly in response to fluid pressure changes and/or by a mechanism driven by fluid flow, optionally without using electrical power. | 08-15-2013 |
20130213486 | COLUMN PRESSURE REGULATION SYSTEM AND METHOD - A system for regulating a pressure of a piston on a bed in a flow through column system, where the flow through column system includes a piston pressure chamber in communication with the piston and an inlet line and an outlet line in communication with the bed. A pump has an inlet in communication with a supply of hydraulic fluid. A forward pressure reference communicates with the inlet line. A forward pressure regulator has a reference inlet in communication with the forward pressure reference and an inlet in communication with the pump. A switching valve communicates with the piston pressure chamber, and also has a inlet in communication with the outlet of the forward pressure regulator. A back pressure reference communicates with the outlet line. A back pressure regulator has an inlet in communication with the outlet of the switching valve, a reference inlet in communication with the back pressure reference and an outlet in communication with the supply of hydraulic fluid. The switching valve may be manipulated so that a pressure in the piston pressure chamber is controlled by either the forward pressure regulator or the back pressure regulator. | 08-22-2013 |
20130233396 | LATCHING CLUTCH VALVE - A hydraulic valve for a vehicle transmission includes a housing, a valve piston, an actuating piston, and a bi-stable spring. The housing is connectable with an inlet passage and an outlet passage for the transmission. The valve piston is sealed to the housing and selectively blocks a fluid flow between the inlet passage and the outlet passage. The actuating piston is sealed to the housing and is arranged to be displaceable by a hydraulic pressure in the inlet passage. The bi-stable spring is engaged with the valve piston and the actuating piston. In some example embodiments, the bi-stable spring is axially fixed with regards to the valve piston and displaceable by the actuating piston. | 09-12-2013 |
20130233397 | Regurgitant Control Directional Flow Valve for Simulating Cardiovascular Hemodynamics - A directional flow valve in a cardiovascular prosthesis test system includes a regurgitant flow passage. Forward flow from a pump through the valve is unrestricted and allowed to pass freely through the directional flow valve. Regurgitant flow is allowed across the directional flow valve to reduce a negative pressure gradient across the prosthetic device. The volume of regurgitant flow is controllable by changing a size of the regurgitant flow pathway. | 09-12-2013 |
20130255790 | Emergency Pneumatic Tire Inflator - This is a pneumatic device used to transfer air from an inflated tire to a deflated tire using a flexible tube and methods of use. The transfer tube is flexible and allows sealed air to transfer through in one direction by using standard screw-on valve connectors on each end and a one-way check valve intersecting the tubing, thus preventing a loss of air from the tire being inflated using no other gauges or mechanical devices. | 10-03-2013 |
20130255791 | FLUID REGULATOR HAVING IMPROVED FLOW STABILITY - A fluid regulator includes a regulator body having a fluid inlet and a fluid outlet connected by a fluid flow path, with a portion of the regulator body forming a first chamber and a second chamber, an orifice disposed in the fluid flow path, a seat, and a control element disposed within the fluid flow path and shiftable between an open position spaced away from the seat and a closed position seated against the seat, with the control element arranged to respond to fluid pressure changes to control flow of a process fluid through the orifice. A first diaphragm having a radially inner portion is operatively coupled to the control element, and a second diaphragm having a radially inner portion also is operatively coupled to the control element. | 10-03-2013 |
20130263929 | PRESSURE CONTROL DEVICE - A pressure control device for isolating a section of a conduit is described. The device comprises a support member, a flexible cup member mounted to the support member, a first swellable element, the first swellable element adapted, upon activation by an activation fluid, to urge a first portion of the cup member outwards into engagement with a conduit surface and at least one bypass arranged to permit the activation fluid to bypass the swellable element and build up behind a second portion of the cup member. | 10-10-2013 |
20130263930 | Pilot Valve Controlled Positive And Negative Pressure Relief Valves - Concepts and technologies disclosed herein for relief valves (“relief valves”). A relief valve can include a flow path, a primary valve poppet that is urged or biased into a closed position by a tensioned spring, and a pilot valve in communication with a valve compartment of the relief valve. When an exterior space pressure overcomes the tensioned spring, the primary valve poppet can be overcome and pressure between an interior space and the exterior space can equalize, at least partially. When the pressure within the interior space increases beyond a defined threshold, which can be defined by a spring of the pilot valve, the pilot valve can open, the valve compartment can vent, and the tensioned spring again can be overcome and can open to allow at least partial equalization of pressures within the interior space and the exterior space. | 10-10-2013 |
20130263931 | PRESSURE LIMITING VALVE AND ALTERNATIVE METHOD FOR TESTING A BACKFLOW PREVENTER USING THE SAME - The pressure limiting valve has a low pressure gauge configured to measure the operability of a backflow prevention device having a line pressure relatively higher than the maximum PSI rating of the low pressure gauge. The valve body has an inlet statically coupled to a pressurized fluid source and an outlet coupled to the low pressure gauge. Upper and lower chambers fluidly coupled via a conduit are formed from an interior portion of the valve body and generally separated by a flexible diaphragm. A spring actuable via movement of the flexible diaphragm in response to pressure changes in the valve body biases a closure seat in an open position relative to the outlet when the valve body is not under pressure, and compresses under pressure to permit the closure seat to seal the outlet when pressure in the valve body reaches a maximum PSI rating of the low pressure gauge. | 10-10-2013 |
20130276901 | Apparatus, Systems and Methods for a Flow Control Device - A flow control device for control of fluid flow through a tubular member comprises a control chamber having a piston disposed therein, where the piston is moveable from an open piston position to a closed piston position by the application of a first fluid pressure, and a valve chamber having a valve therein, where the valve is moveable from a closed valve position to an open valve position by the application of a second fluid pressure. A seal preventing fluid flow through the control chamber into the tubular member is formed in the closed piston position, and a flow path through the valve chamber and into the tubular member is formed in the open valve position. | 10-24-2013 |
20130276902 | Central Tire Inflation Wheel Assembly and Valve - The present invention is a central tire inflation system and a valve for use in the system including a casing securable to the rim of a vehicle in communication with the tire that houses a main body connectable to a pressurized fluid supply of the central tire inflation system, and a valve member moveable within the main body to control the flow of air through the valve. The valve can be mounted flush on the exterior surface of the rim or in a recessed position within the rim, and can be connected to a manifold that is able to control the flow of pressurized fluid from the central tire inflation system to each valve and tire connected to the valve. The operation of the manifold and pressurized fluid supply can be controlled utilizing a controller operably connected to the manifold and fluid supply. | 10-24-2013 |
20130276903 | ACTIVE VALVE FOR VENTILATORS | 10-24-2013 |
20130306159 | UNIT FOR SIMULATING THE PRESSURE AND TEMPERATURE CONDITIONS OF THE AIR DRAWN IN BY A RECIPROCATING INTERNAL COMBUSTION ENGINE - The invention relates to a unit for simulating the pressure and temperature conditions of an air flow drawn in by a reciprocating internal combustion engine ( | 11-21-2013 |
20130312835 | METHOD AND APPARATUS FOR RAPID PUMP-DOWN OF A HIGH-VACUUM LOADLOCK - A gas expansion module for use with semiconductor wafer loadlocks and other regulated-pressure components of semiconductor processing tools is provided. The gas expansion module may be barometrically isolated from the loadlock or other component and pumped down to a vacuum condition while the loadlock is performing operations at a higher pressure, such as ambient atmospheric conditions. After an initial pump-down of the loadlock is performed, the gas expansion module may be fluidly joined to the loadlock volume and the gases within each allowed to reach equilibrium. A further pump-down of the combined volume may be used to bring the loadlock pressure to a desired vacuum condition. | 11-28-2013 |
20130312836 | Adjustable Doser Valve - A doser valve with a seat comprising at least one axially located slot from an outer surface of the seat and at least one radial/tangential extending passage in fluid communication with the at least one axially located slot and an exit passage out of the seat. | 11-28-2013 |
20130340837 | DEVICE AND METHOD FOR SUPPLYING GAS WHILE DIVIDING TO CHAMBER FROM GAS SUPPLYING FACILITY EQUIPPED WITH FLOW CONTROLLER - The invention supplies a quantity Q of gas while dividing at flow rate ratio Q | 12-26-2013 |
20140000723 | PRESSURE FUSE OR BREAKER | 01-02-2014 |
20140014190 | DIFFERENTIAL PRESSURE VALVE WITH PARALLEL BIASING SPRINGS AND METHOD FOR REDUCING SPRING SURGE - A differential pressure valve is disclosed, comprising: a valve body, the valve body having at least one flow inlet and one flow outlet; at least one shutter, the shutter being movable between an open position and a closed position under a differential pressure across the valve; a flow passage from the flow inlet to the flow outlet; at least one biasing member configured to bias the shutter towards a closed position so as to block the flow passage through the flow inlet. The biasing member comprises at least two springs arranged in parallel, one of the springs having at least one resonance frequency different from at least one resonance frequency of the other of the two springs. | 01-16-2014 |
20140014191 | Method and Device for Preventing a Mud Relief Valve from Incorrect Opening - A device for preventing a primary relief valve in a mud system from opening at a pressure lower than a nominal opening pressure includes a flow restrictor between a mud pump of the mud system and the primary relief valve. In addition, the device includes a cavity between the flow restrictor and the primary relief valve. | 01-16-2014 |
20140026972 | VALVE SYSTEM - A valve system for use in an inflatable bladder having two opposing layers and a bladder interior disposed between the two layers, the valve system includes (i) an aperture disposed at a position on one layer for filling and deflating the bladder interior, | 01-30-2014 |
20140048142 | PRESSURE AND TEMPERATURE BALANCING VALVE SYSTEM FOR A ROMAN TUB - A method for avoiding scalding a bather with hot water from a hand held shower head, including operationally connecting hot and cold water supplies to a bathtub fill spigot, operationally connecting a compact pressure balanced valve having an output and a plurality of inputs to a bathtub deck, operationally connecting the compact pressure balanced valve output to the hand held shower head, operationally connecting a hot water source and a cold water source to respective pressure balanced valve inputs, and actuating the hand held shower head to achieve a water output characterized by a predetermined pressure and maximum temperature from the pressure balanced valve. | 02-20-2014 |
20140053912 | Methods and Apparatus for Enhanced Gas Flow Rate Control - The present invention provides methods and apparatus for controlling gas flow to a semiconductor-processing chamber. The invention includes deactivating ratio setpoint feedback control in a flow ratio controller; initiating gas flow through the flow ratio controller; moving valves of the flow ratio controller to a preset position based on a stored position when an upstream pressure reaches a stored upstream pressure value, wherein the stored position and the stored upstream pressure value were stored during a prior process run; determining that steady state flow ratio controller output flows have been reached; and activating ratio setpoint feedback control in the flow ratio controller. Numerous additional features are disclosed. | 02-27-2014 |
20140053913 | OIL BYPASS VALVE - A bypass valve which may direct excess oil back into the cam chest where the return side of the oil pump may send the oil back into the oil tank. The bypass valve may fit within the bypass port of the cam plate and connect with a high pressure feed. The bypass valve may include a sleeve with a front opening and a needle valve within the bypass valve. The needle valve may be biased in a closed position, sealing off the front opening. When the high pressure feed exceeds a certain oil pressure, the needle valve may unblock the front opening. | 02-27-2014 |
20140060661 | SOLENOID VALVE CONTROL DEVICE AND SOLENOID VALVE CONTROL METHOD - An internal pressure sensor detects an internal pressure of the fuel tank, which stores fuel. A solenoid valve is configured to close to seal the fuel tank and is configured to open to open the fuel tank. An internal pressure acquisition unit is configured to acquire an internal pressure of the fuel tank from the internal pressure sensor. A drive control unit is configured to control the solenoid valve to open when the internal pressure of the fuel tank is greater than or equal to a first predetermined value, which is a negative value, and is less than a second predetermined value, which is 0 or a positive value. | 03-06-2014 |
20140076408 | METHOD AND APPARATUS FOR DETERMINING AND CONTROLLING A STATIC FLUID PRESSURE THROUGH A VIBRATING METER - A method for operating a fluid flow system ( | 03-20-2014 |
20140076409 | PRESSURE CONTROL DEVICE FOR A TIRE INFLATING SYSTEM WITH A ROTARY FEEDTHROUGH, AND TIRE PRESSURE CHANGING METHOD - A pressure control device for a vehicle tire inflating system is configured to receive compressed air via a ventilating inlet, activate at least one seal for sealing an air chamber between a stator and a rotor of a rotary feedthrough via a seal actuating outlet, and ventilate a tire at a ventilating outlet pressure via a ventilating outlet and the feedthrough. A control valve is pneumatically controllable by a control pressure, the ventilating outlet being ventilated at the outlet pressure by the control valve only when the control pressure is at least a defined minimum pressure. In response to pressure build-up at the ventilating inlet at least to the minimum pressure, the control pressure and the seal actuating pressure are built up for ventilating, but build-up of the control pressure is with respect to the seal actuating pressure. Activation of a seal prior to ventilation of the ventilating outlet is possible without additional actuating channels. | 03-20-2014 |
20140083514 | Method and Apparatus for Self Verification of Pressured Based Mass Flow Controllers - A mass flow control system can be self verified for its accuracy when controlling a flow to a process. The system comprises: a control valve for controlling the flow of fluid through the system as a function of a control signal; a controller for generating the control signal as a function of measured flow of fluid through the system and a targeted flow set point; a pressure sensor for measuring the controlling fluid pressure for use in measuring and verifying the flow rate; and a source of fluid for providing a known volume of fluid for use in verifying the system accuracy anytime between steps of the flow control process. | 03-27-2014 |
20140083515 | SLAM SHUT SAFETY DEVICE HAVING DISC ANTI-ROTATION - A slam-shut safety device includes a valve body and defining a flow path, a valve disc mounted on a valve disc support is movable between an open first position spaced away from the valve seat and a closed second position seated against the valve seat. A reset pin is operatively coupled to the valve disc support and is shiftable between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. An anti-rotation assembly is carried by cooperating portions of the valve disc and the valve disc support, with the anti-rotation assembly comprising at least one protrusion and at least one receiving area sized to receive the protrusion, the anti-rotation assembly arranged to stop rotation of the valve disc relative to the valve disc support. | 03-27-2014 |
20140090717 | UPSTREAM SENSE FOR BALANCE PORT - A fluid regulating device includes a regulator valve having a valve body defining an inlet and an outlet and a valve port disposed between the inlet and the outlet. A housing assembly is disposed adjacent the valve port, and the housing assembly includes a first aperture adapted to receive a valve disc. A balancing diaphragm is secured to a portion of the valve disc and a portion of the housing assembly, and a portion of a balancing cavity is defined by a top surface of the balancing diaphragm and an interior surface of the housing assembly. A sensing passage extends from the inlet of the regulator valve to the balancing cavity such that the inlet of the regulator valve is in fluid communication with the balancing cavity. | 04-03-2014 |
20140109978 | AIRCRAFT BLEED SYSTEM AND METHOD OF CONTROLLING AN AIRCRAFT BLEED SYSTEM - An aircraft bleed system includes a low pressure supply port for delivering a first fluid at a first pressure. Also included is a high pressure supply port for delivering a second fluid at a second pressure, the second pressure greater than the first pressure. Further included is a feedback circuit in operable communication with the high pressure supply port for receiving the second fluid. The feedback circuit includes a first branch configured to route the second fluid to a high pressure control piston for manipulating the high pressure control piston between a high pressure closed position and a high pressure open position. The feedback circuit also includes a second branch configured to route the second fluid to a low pressure control piston moveably disposed within the high pressure control piston for manipulating the low pressure control piston between a low pressure closed position and a low pressure open position. | 04-24-2014 |
20140116523 | FUEL SYSTEM HAVING DUAL FUEL PRESSURE REGULATOR - A pressure regulator is disclosed having a body, a valve seat dividing a cavity of the body into first and second portions, and an end stop movable against a bias to selectively engage the valve seat and isolate the first and second portions. The pressure regulator may also have a first inlet port in the first portion, a first outlet port in the second portion and in fluid communication with the first portion via the valve seat, and a second inlet port in the second portion. The fuel system may also have a valve element in the second portion and movable against a spring bias based on a pressure difference between an open position and a restricted position against the end stop. The fuel system may additionally have an actuator biased to urge the valve element toward the second position and selectively actuated to move away from the valve element. | 05-01-2014 |
20140116524 | FLUID SUPPLY SYSTEM AND METHOD OF CONTROLLING FLUID SUPPLY SYSTEM - A fluid supply system includes a tank, a shutoff valve, a fluid fill channel, a fluid supply channel, a fill detector, a pressure detector, and a controller. The shutoff valve includes a shared channel to enable fluid to flow from a fill hole to the tank and to flow from the tank to a fluid usage device. The pressure detector is provided in the fluid supply channel. The controller is configured to output a close instruction to the shutoff valve and configured to execute a processing to determine open valve malfunctions in the shutoff valve based on changes in pressure values which are input from the pressure detector. The controller stops the processing to determine open valve malfunctions when the fill detector detects that the fluid supply system is in the supplying state. | 05-01-2014 |
20140130883 | FLOW REDUCTION FOR BLEED AIR SYSTEMS - A valve control system includes a valve connected to regulate flow of a medium provided to an output and a sensor connected to monitor a feedback value associated with the medium. A controller modulates the valve based on a comparison of a reference value to the feedback value provided by the sensor. The controller detects saturation of the valve if the error between the monitored feedback value and reference value exceeds a threshold. In response to detected saturation, the controller reduces the reference value to a value less than the monitored feedback value. | 05-15-2014 |
20140130884 | SLAM SHUT SAFETY DEVICE HAVING DISC ARRESTOR ASSEMBLY - A slam-shut safety device having a disc arrestor includes a valve body, a valve seat between an inlet and an outlet, and a reset pin shiftable between untripped and tripped positions. A valve disc support includes has a threaded stem and is operatively coupled to the reset pin. A valve disc fits on the stem of the support and shifts in response to movement of the valve disc support between an open position and a closed second position in which the valve disc is seated against the valve seat. A threaded nut is securable to the threaded portion of the stem of the valve disc support, and an arrestor spring is positioned on the stem of the valve disc support and is secured by the threaded nut. The arrestor spring is arranged to apply a biasing force to valve disc. | 05-15-2014 |
20140137947 | Apparatus and Method for Reducing Actuator Thrust Requirements in a Control Valve - A trim assembly is provided with a cage with an internal surface and a cage port. A plug having an external surface is disposed in the cage and is operable between a closed position, a pressure balancing position and an open position. The trim assembly also includes a low friction flow restrictor disposed between the cage and the plug and a pressure energized seal disposed between the cage and the plug. A seal balancing volume defined by the internal surface of the cage, the external surface of the plug, the low friction flow restrictor and the pressure energized seal is provided. The seal balancing volume is in fluid communication with the cage port through the low friction flow restrictor and is maintained at a seal balancing volume pressure. The trim assembly further includes a pressure control assembly configured to vent the seal balancing volume. | 05-22-2014 |
20140137948 | METHOD FOR OPERATING A FUEL SYSTEM, AND FUEL SYSTEM - In a method for operating a fuel system of an internal combustion engine, the fuel system has a fuel tank and a ventilation device, which has at least one vent valve, for ventilating the fuel tank. The magnitude of deformation caused by an internal pressure of the fuel tank of a deformation zone of the fuel tank is ascertained and the vent valve is opened when the magnitude of deformation exceeds a limit value. | 05-22-2014 |
20140150885 | POSITIVE ISOLATION THROUGH ISOLATION OF AIR SUPPLY TO PNEUMATIC VALVES - Systems and methods are described for actuating a plurality of pneumatic valves to positively isolate one or more pieces of equipment. A manual valve can be disposed on a supply conduit that fluidly couples each of the pneumatic valves to a fluid supply source. To place the pneumatic valves in a safe position, the manual valve can be closed, which disrupts a flow of fluid from the source. Closing the manual valve can also open a drain conduit that allows the supply conduit to be depressurized. | 06-05-2014 |
20140158212 | DUAL FEEDBACK VACUUM FLUIDICS FOR A FLOW-TYPE PARTICLE ANALYZER - The present invention relates to a vacuum-driven fluidic system for a flow-type particle analyzer. The system includes a vacuum pump which creates a pressure drop downstream of the flow cell, which pulls sheath fluid and sample fluid through the flow cell. A variable-resistance fluidic resistor is configured to control the ratio of sample fluid flow to sheath fluid flow. Dual feedback circuits, one configured to modulate the vacuum pump power in response to the pressure drop across the flow cell, referred to as the dynamic pressure drop, and a second configured to modulate the vacuum pump power in response to the pressure drop created by the vacuum pump relative to ambient pressure, referred to as the static pressure drop, are used to automatically control the system. The present invention enables adjustment of the sample fluid flow rate while maintaining a constant total fluid flow through the flow cell, and further, enables pausing the system without significant fluctuations in the vacuum. | 06-12-2014 |
20140166114 | CONTROL SYSTEM FOR HYDRAULIC SYSTEM AND METHOD FOR RECOVERING ENERGY AND LEVELING HYDRAULIC SYSTEM LOADS - A control system for a hydraulic system including an accumulator and a hydraulic transformer coordinates flow sharing within the hydraulic system. The hydraulic transformer includes first and second variable displacement pump/motor units mounted on a rotatable shaft. The rotatable shaft has an end adapted for connection to a first external load. The first variable displacement pump/motor unit includes a first side that fluidly connects to a pump and a second side that fluidly connects to a tank. The second variable displacement pump/motor unit includes a first side that fluidly connects to the accumulator and a second side that fluidly connects with the tank. A second external load may be hydraulically connected to the hydraulic system. Energy may be transferred to/from the pump, the accumulator, the first external load, and/or the second external load, as directed by the control system. | 06-19-2014 |
20140166115 | WATER HAMMER RECOGNIZING AND ENERGY SAVING WATER HAMMER PREVENTION SYSTEM AND METHOD FOR CONTROLLING THE SAME - The present invention relates to a water hammer recognizing and energy saving water hammer prevention system and a method for controlling the same that is configured wherein in case of the selective on/off operations of a plurality of pumps in a pipe system in accordance with the change of the use environment, the pressure variation and level variation of an air chamber caused by water hammer are compared with reference values and set values, and they are divided into a normal mode and a safe mode, thereby controlling the air intake and exhaust of the air chamber and preventing energy consumption from unnecessarily occurring. | 06-19-2014 |
20140174550 | FAULT ISOLATION & DECONTAMINATION PROCEDURES FOR ELECTROHYDRAULIC VALVES - A method for isolating a fault or blocked work port in an electro-hydraulic system is disclosed. In one step, a system pump is set to a first predetermined pressure and a valve assembly is commanded to a center position. In another step, the center position of the valve is recorded. In one step, the valve assembly is opened to place a work port associated with the valve in fluid communication with the pump, after which a first end position of the valve, a first work port pressure, and a first pump supply pressure are recorded. In another step, the valve assembly is opened to place the work port to a tank reservoir, after which a second end position of the valve and a fluid pressure associated with the work port are recorded. The recorded and measured data can then be analyzed to identify the fault condition or blocked work port. | 06-26-2014 |
20140174551 | Variable Gas Pressure Regulator - A variable gas pressure regulator comprises a throttling valve regulating the fluid flow between a high-pressure fluid inlet and a regulated space fluidly connected to a fluid outlet, a high-pressure solenoid commanded to control fluid flow between the fluid inlet and a control space and a low-pressure solenoid commanded to control fluid flow between the control space and the regulated space. The regulator achieves a variable pressure at the regulator outlet by commanding the two solenoids to control the pressure in the control space relative to the regulated space. The regulator further comprises a lock-off valve which is controlled by the action of the low-pressure solenoid and of the high-pressure solenoid based on the relative pressure difference between the control space and the regulated space. The lock-off valve seals the passage between the fluid inlet and the regulated space. | 06-26-2014 |
20140182693 | Hydraulic Gain of Transmission Control Elements - A system controlling gain in a control element includes a source of line pressure, a source of signal pressure, a control valve that controls communication between line pressure and the control element, including a first differential area communicating with control element pressure, and a second differential area, and a gain control valve that opens and closes communication between control element pressure and the second differential area in response to signal pressure. | 07-03-2014 |
20140182694 | BACKPRESSURE REGULATOR FOR EASY PUMP START-UP - A system and method for automatically performing start-up and overpressure relief functions in association with a primary fluid carrier such as, for example, a liquid handling pipeline or tank. The system includes a main valve for primarily exhausting air from the system as it fills with a liquid. A start-up pilot device is also provided for exhausting air from the system upon start-up, but prior to the main valve opening. Finally, an overpressure pilot device is provided to relieve overpressure situations during normal operation. | 07-03-2014 |
20140190572 | CONNECTING PIECE OF A TRANSPORT LINE - A tempered connecting piece is provided for transporting a viscous fluid, and includes an excess pressure release component, which separates the inside of the connecting piece from a discharge line and is fixed to an outer edge on the discharge line. The excess pressure release component is designed to release the discharge line in the event of predetermined excess pressure and a mixing element, which thoroughly mixes a fluid flow in the region of the excess pressure release component, is arranged in the inside of the connecting piece. | 07-10-2014 |
20140202550 | PRESSURE RELIEF VALVE - A pressure relief valve and a mating fuel tank bung are installed directly on a fuel tank. In one embodiment a bung is welded directly to a fuel tank, and thereafter a pressure relief valve is attached directly to the bung by mating threads. This system and installation method provides a cost and time effective installation process that is expedient, does not require additional pipes or plumbing fixtures, and the resulting installed valve may provide improved safety features due to the exclusion of additional pipes and plumbing positioned between the valve and the fuel tank and a compactness of design. | 07-24-2014 |
20140209179 | VALIDATION METHOD FOR PRESSURE SENSOR SIGNAL AT ELECTRICAL CONTROLLED HIGH PRESSURE GAS STORAGE SYSTEMS - A method for validating a pressure sensor between a source of a gas and a pressure regulator that regulates a gas flow. The method includes providing a valve command signal and selecting a bias signal from a bias table. The method also includes comparing the selected bias signal to the valve command signal and determining there is a pressure sensor error if the difference between the selected bias signal and the valve command signal is above a predetermined threshold. | 07-31-2014 |
20140216560 | FLUID FLOW MEASUREMENT AND CONTROL - In accordance with one embodiment, a controller in a fluid delivery system controls magnitudes of pressure in a first volume and a second volume. The first volume is of a known magnitude. The second volume is of an unknown magnitude and varies. The controller estimates a temperature of gas in the first volume and a temperature of gas in the second volume based on measurements of pressure in the first volume and measurements of pressure in the second volume. The controller then calculates a magnitude of the second volume based on measured pressures of the gases and estimated temperatures of gases in the first volume and the second volume. | 08-07-2014 |
20140238499 | PUMPING OF COLLECTED LIQUIDS IN SYSTEMS - A system includes at least one fluid volume in which pressure varies, a retention volume for collecting a liquid used in operating the system; and a pump device in fluid connection with the retention volume and in operative connection with the fluid volume. The pump device includes a housing, a movable pressurizing mechanism within the housing and in fluid connection with the fluid volume, a biasing mechanism in operative connection with the pressurizing mechanism to bias the pressurizing mechanism in a first direction, and a pump volume within the housing. The volume of the pump volume is defined by a position of the pressurizing mechanism, wherein the position of the pressurizing mechanism is controlled by pressure within the fluid volume and the biasing mechanism. The pump device further includes an inlet port in fluid connection with the pump volume and an outlet port in fluid connection with the pump volume. | 08-28-2014 |
20140238500 | COMPRESSOR AND/OR EXPANDER DEVICE WITH ROLLING PISTON SEAL - An apparatus can include a piston movably disposed within a pressure vessel and defines a first interior region and a second interior region. The piston has a first position in which the first interior contains a gas having a first pressure and has a volume greater than the second interior region, and a second position in which the second interior region contains a gas having a second pressure and has a volume greater than the first interior region. A seal member is attached to the piston and to the pressure vessel. The seal member has a first configuration in which at least a portion of the seal member is disposed at a first position when the piston is in its first position, and a second configuration in which the portion of the seal member is disposed at a second position when the piston is in its second position. | 08-28-2014 |
20140238501 | AIRCRAFT INERTING SYSTEM - A method of controlling a flow rate of inerting gas introduced into a vented aircraft fuel tank, the method comprising: monitoring changes in a quantity of a fuel in the aircraft fuel tank; monitoring changes in the ambient air pressure external to the aircraft fuel tank; and actively controlling a flow rate of inerting gas, {dot over (m)}(I), introduced into the aircraft fuel tank based upon changes in the quantity of fuel in the fuel tank and changes in the ambient air pressure, p. Also, an aircraft including a vented fuel tank, a supply of inerting gas for rendering inert the fuel tank ullage, and a controller for performing the method. | 08-28-2014 |
20140261715 | REDUCING PRESSURE DROP BUILDUP IN BIO-OIL HYDROPROCESSING REACTORS - A method is provided involving reducing a pressure drop across a hydroprocessing reactor having a reactor feed and producing a hydroprocessing product, where the reactor feed includes a bio-oil feed and a hydrocarbon diluent; and the step of reducing the pressure drop comprises stopping or substantially reducing the bio-oil feed supplied to the reactor and supplying the hydrocarbon diluent to the reactor with a mass flux of at least about 1,000 lb/hr/ft | 09-18-2014 |
20140261716 | Systems and Methods for Fluid Pump Outlet Pressure Regulation - Fluid pump pressure regulation systems and methods have a valve body with a bore and a valve spool. The valve spool connects a first and second port to a third port in different valve spool positions. The first port is in fluid communication with an output of a fluid pump to receive a first fluid pressure from the fluid pump. The second port is in fluid communication with a fluid reservoir. The third port is in fluid communication with a fluid pump input to provide a second fluid pressure to the fluid pump to control the first fluid pressure from the fluid pump. A linear actuator is adjacent the valve body, with a first spring and a second spring biasing the valve spool in a first or second direction. | 09-18-2014 |
20140261717 | DIALYSIS CONTROL VALVE HAVING SELF-CLEANING MODE - A valve system is provided that includes an electromechanical solenoid, a gas valve including a magnetic flapper, a power source in electrical communication with the electromechanical solenoid, and a controller. The controller is configured to control the power source to supply an intermediate voltage that causes the electromechanical solenoid to move to a neutral position between a default position and a fully-actuated position. In so doing, the magnetic flapper is maintained in a neutral position between two gas ports and a flow of gas between the ports can be used to clean foreign particles from the magnetic flapper. The controller can also provide a varying voltage to the electromechanical solenoid while in the neutral position to cause vibration of the magnetic flapper and further assist in removing foreign particles. A closed loop system including a feedback circuit can be used for adjusting the voltage applied to the solenoid based on pressure sensed. | 09-18-2014 |
20140261718 | MAIN STAGE IN-LINE PRESSURE CONTROL CARTRIDGE WITH OPTIONAL REVERSE FLOW FUNCTION - A main stage in-line pressure control cartridge. The cartridge selectively controls flow in-line in the same direction as opposed to directing flow at a 90 degree angle like other cartridges. A tubular poppet can be mounted into a body and has a sliding control sleeve that can expose radial holes in the poppet to an open position and to seal the radial holes in a closed position. The cartridge can be configured in numerous ways in order to serve many functions, such as a pressure relief valve, a counterbalance valve, and a flow control valve. The cartridge can also be configured to allow or prevent reverse flow. | 09-18-2014 |
20140261719 | SYSTEM AND METHOD FOR REGULATING A CONSTANT POSITIVE PRESSURE DIFFERENTIAL WITHIN A CONTAINER - A system and method for regulating a constant positive pressure differential within a container in order to maintain the waterproof integrity of the container. In one embodiment, the system for regulating a constant positive pressure differential within a container is comprised of a valve member, a control member, and an air supply member. In another embodiment, the system for regulating a constant positive pressure differential within a container is also comprised of a container member. | 09-18-2014 |
20140305508 | METHOD AND APPARATUS FOR DEACTIVATING A HYDRAULIC DEVICE THAT IS LEAKING HYDRAULIC OIL - A method of deactivating an underwater hydraulic device provides a hydraulic device that is capable of being operated under water, the device having a hydraulic cylinder with a pushrod and a piston. The device is lowered below a water surface with a hose reel that is located at the water surface area such as on a marine vessel. The hose reel includes first and second hydraulic hoses that connect to the cylinder on opposing sides of the piston. Fluid flow in the first and second hydraulic hoses is continuously monitored. The ratio of the volume of fluid flowing into the cylinder from one side of the piston to the volume of fluid flowing into the cylinder from the other side of the piston is continuously calculated with a computer or controller. The hydraulic device is deactivated if the ratio varies from a preset value. One embodiment includes a plurality of flow meters for measuring fluid flow to and from one or more hydraulically powered apparatuses. In one embodiment outputs of the flow meters are analyzed to determine if the hydraulic system has a leak, and if a leak is detected, a warning is issued and/or one or more of the connected hydraulically powered apparatuses are shut down, and/or the hydraulic power supply is shut down. In one embodiment, the flow lines are jointed flow lines comprised of hose joints connected end to end. Some or all of the hoses have check valves. In one embodiment, the check valves stop flow in either direction if the flow pressure drops below a selected pressure. | 10-16-2014 |
20140311580 | AIR INTAKE AND A METHOD OF CONTROLLING THE SAME - An air intake guide for a jet propulsion power plant for a supersonic aircraft comprises an intake aperture, an intake centre body and an intake adjustment device. | 10-23-2014 |
20140318634 | Fuel Conditioning System - The present application provides a fuel conditioning system for delivering a flow of fuel to a nozzle in a gas turbine engine. The fuel conditioning system may include a fuel compressor to increase the pressure of the flow of fuel, a pressure reduction valve to decrease the pressure of the flow of fuel, and a heater downstream of the pressure reduction valve. The pressure reduction valve may include a rotary control valve. | 10-30-2014 |
20140326324 | APPARATUS AND METHOD FOR SEALING A PIPE INCLUDING INTERNAL AND EXTERNAL GRIPPING MEANS - An apparatus for sealing an open end of a pipe includes a sealing means for forming a circumferential seal between the apparatus and the inner surface of the pipe and first and second “gripping” means for frictionally engaging the inner and outer surfaces of the pipe, respectively, to prevent relative axial movement between the apparatus and the pipe. The invention also provides a method of sealing an open end of a pipe. The apparatus and method are also adapted to pressurize the interior of the pipe for conducting an integrity test of the pipe or welds on the pipe. | 11-06-2014 |
20140345700 | PRESSURE MONITORING SYSTEM FOR A FUEL TANK AND METHOD - A pressure monitoring system for a fuel tank includes a supply line fluidly coupling a fluid source with at least one fuel tank for supplying an inert gas to the at least one fuel tank. Also included is a pressure relief valve in communication with the supply line configured to detect a pressure differential between a supply line pressure and an ambient pressure. Further included is a pressure sensor configured to detect the supply line pressure. Yet further included is a controller in operable communication with the pressure sensor and the fluid source, wherein the controller is configured to modify a flow rate of the inert gas in the supply line upon detection of the supply line pressure exceeding a predetermined pressure limit. | 11-27-2014 |
20150007893 | APPARATUS AND METHOD FOR INCREASING THE SAFETY DURING THE USE OF BATTERY SYSTEMS - A battery system, in particular a lithium-ion battery system, comprising a discharge line (AL) with an opening for discharging substances which are produced in the battery system, in particular gases, to the surroundings of the battery system. | 01-08-2015 |
20150020888 | Parallel Metering Pressure Regulation System for a Thermal Efficient Metering System - A fuel pressure regulation system is provided. The fuel pressure regulation system includes a supply arrangement for supplying an outlet flow. A primary metering circuit is provided, an inlet of which receives a first portion of the outlet flow of the supply arrangement, the primary metering circuit comprising a fuel metering valve and a primary pressure regulator. The primary pressure regulator is connected to an outlet of the fuel metering valve. The system also includes at least one secondary metering circuit. The primary pressure regulator is operably connected to the at least one secondary metering circuit to sense a pressure of the at least one secondary metering circuit. The system also includes a bypass regulator connected in parallel with the primary metering circuit and the least one secondary metering circuit such that an inlet of the bypass regulator receives a second portion of the outlet flow of the supply arrangement. | 01-22-2015 |
20150020889 | Series Plus Parallel Metering Pressure Regulation System for a Thermal Efficient Fuel Metering System - An engine fuel system and methods are provided. The engine fuel system includes a supply arrangement for providing an outlet flow of fuel to a bypass metering arrangement. The bypass metering arrangement in turn provides a metered flow of fuel to a parallel metering system including a primary regulated circuit and one or more secondary metering circuits. The bypass metering arrangement is operable to maintain a substantially constant pressure differential across a fuel metering valve thereof, as well as provide the metered flow of fuel in response to downstream pressure demands of the parallel metering system. | 01-22-2015 |
20150040989 | AUTOMATIC EXCESS WATER FLOW SAVING SYSTEM - An automatic excess water flow saving system reduces the water loss by water outlets in houses and other water consuming installations. The system controls the water flow through an outlet by toggling the water flow rate. An actuator activates a timer which opens and closes a valve intermittently and continuously while a water outlet is open. | 02-12-2015 |
20150040990 | FLOW CONTROL DEVICE AND METHOD - A fluid flow control device includes a housing having a fluid inlet ( | 02-12-2015 |
20150068610 | Method for determining a value of a current - A method for determining a value of a current, which is required for changing a switching state of a pressure control valve of a fuel delivery system, in which the current flowing through the pressure control valve is varied from a starting value up to a target value, and a time curve of the current is analyzed, the value required for changing the switching state being reached when the curve of the current has a change in slope, this change being detected via a first derivation over time of the current. | 03-12-2015 |
20150096625 | VALVE ASSEMBLY FOR A TANK OF A VEHICLE AND A METHOD OF CREATING A VACUUM IN THE TANK - A valve assembly for a tank of a vehicle and a method of creating a vacuum are disclosed. A valve body defines a cavity and an outlet in fluid communication with the cavity for venting the tank. The assembly includes a seat disposed in the cavity of the valve body. The seat separates the cavity into first and second cavity portions. The seat defines an aperture to provide fluid communication between the first and second cavity portions. The assembly includes a cover device disposed between the seat and the outlet. The cover device defines at least one hole therethrough. The cover device is movable between a rest position engaging the seat to minimize fluid communication between the aperture and the hole and an actuated position spaced from the seat to increase fluid communication between the aperture and the hole when a vacuum is created in the first cavity portion. | 04-09-2015 |
20150107680 | MODULATING CHECK VALVE - A modulating check valve and method of operating the modulating check valve adapted for mounting to an inlet of a compressor. The modulating check valve includes a flow section through which fluid flow. The flow section has an intake portal and an outlet portal connected to the inlet of the compressor. A flapper valve is disposed in the flow section to prevent backflow from the outlet portal to the intake portal. An actuator controls the flapper valve allowing the flapper valve to open, close and modulate the fluid flow from the intake portal to the outlet portal of the flow section in response to fluid pressure at an outlet of the compressor. | 04-23-2015 |
20150107681 | Method And Apparatus For Compressing gas In a Plurality of Stages To a Storage Tank Array Having A Plurality of Storage Tanks - A method and apparatus for compressing gases and supplying compressed gaseous fuel to a consuming device, such as a gaseous fueled vehicle or the like. One embodiment includes a gas compressor for compressing the gaseous fuel to an array of tanks having predetermined initial set points which are increasing for tanks in the array. One embodiment provides a selecting valve having first and second families of ports wherein the valve can be operated to select a plurality of ports from the first family to be fluidly connected with a plurality of ports with the second family, and such fluid connections can be changed by operation of the valve. | 04-23-2015 |
20150114477 | AIRCRAFT FUEL SUPPLY SYSTEMS - A fuel supply system for an aircraft is provided for delivering in use fuel from a fuel tank to an aircraft powerplant. The in use fuel flows along a fuel flow passage from the fuel tank to the powerplant. A downstream pump is associated with the powerplant and configured to draw fluid along the fuel flow path so as to supply it to the powerplant in use. An upstream pump is disposed in or associated with the fuel tank and operable to pump fluid along the fuel flow passage. A pressure sensor is configured to monitor a pressure at an inlet to the downstream pump. A fuel system controller is responsive to the pressure sensor and configured to control the upstream pump so as to maintain the pressure at the inlet to the downstream pump at or above a predetermined threshold pressure. | 04-30-2015 |
20150122340 | BIASED NORMALLY OPEN CHECK VALVE ASSEMBLY - A biased normally open check valve assembly for facilitating Multiair® engine start-up after extended periods of non-use. The check valve is biased in an open position and allows for the ventilation of air out of the system so that the engine can start. The check valve also comprises a metering groove in a valve seat. The metering groove is configured to allow a controlled flow of hydraulic fluid through the check valve when the check valve is in a closed position. | 05-07-2015 |
20150129043 | Valves with multi-directional ball check - A valve with a valve body in which is rotatably mounted a valve member, the valve member having therein a ball check for selectively preventing fluid flow through the valve. 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). | 05-14-2015 |
20150136236 | METHOD OF OPERATING A VALVE - Method of operating a valve ( | 05-21-2015 |
20150306614 | METHOD AND SYSTEM FOR CONTROL OF PRESSURE WASHER FUNCTIONS - Methods and systems for controlling pressure washer devices are provided. Pressure washers comprising at least one control unit and the ability to regulate functions of at least an engine of a pressure washer are disclosed. A control unit receives inputs from a user or various sensors provided in communication with the control unit, and is further capable of outputting a signal based on the inputs, the output signal operative to maintain or control the operating functions of an engine, pump, or motor. | 10-29-2015 |
20150308581 | Main Stage In-Line Pressure Control Cartridge with Optional Reverse Flow Function - A main stage in-line pressure control cartridge. The cartridge selectively controls flow in-line in the same direction as opposed to directing flow at a 90 degree angle like other cartridges. A tubular poppet can be mounted into a body and has a sliding control sleeve that can expose radial holes in the poppet to an open position and to seal the radial holes in a closed position. The cartridge can be configured in numerous ways in order to serve many functions, such as a pressure relief valve, a counterbalance valve, and a flow control valve. The cartridge can also be configured to allow or prevent reverse flow. | 10-29-2015 |
20150314307 | Pulsating Device with Two Preset Pressure-Responding Normally Closed Valves - A pulsating device with two preset pressure-responding normally-closed valves is disclosed. The first valve is used for accumulating fluid. The second valve is used for creating resistance so as to force the first valve to open widely. The second valve may be configured so it creates little to no resistance once opened. In some embodiments, the pulsating device converts a low controlled and/or continuous flow of fluid, such as water and/or air, to a high pulsating and/or intermittent flow. A pulsating device may operate, for example, one or more drip lines, pop ups, sprinklers, misters and/or other irrigation devices. | 11-05-2015 |
20150322910 | Regulator Flow Damping - The subject matter of this specification can be embodied in, among other things, a method that includes providing a fluid at a fluid inlet fluidically connected to an input fluid path, providing a fluid outlet fluidically connected to an outlet fluid path, fluidically connecting the inlet fluid path to the outlet fluid path through a valve, fluidically connecting the inlet fluid and the outlet fluid through a bypass fluid path in parallel with the valve, flowing the fluid from the inlet fluid path to the outlet fluid path through the valve and the bypass fluid path at a regulated fluid flow rate, restricting fluid flow in the bypass fluid path with a first orifice, restricting fluid flow in one of the fluid inlet path or the fluid outlet path with a second orifice, and providing the fluid at the fluid outlet at an outlet fluid flow rate. | 11-12-2015 |
20150323138 | SYSTEM AND METHOD FOR GENERATING VACUUM FOR A VEHICLE - Systems and methods for improving generation of vacuum for a vehicle are disclosed. In one example, an air conditioning compressor bypass valve is selectively activated to improve generation of vacuum by an engine. The systems and methods may reduce the possibility of compressor clutch degradation. | 11-12-2015 |
20150338027 | SLURRY-TRANSPORTING FACILITY AND SLURRY TRANSPORTATION CONTROL METHOD - A slurry-transporting facility equipped with a plurality of pump-equipment circuits, whereby a stop of slurry supply to a transport destination at the time of switchover between the pump-equipment circuits for use is prevented to make an efficient operation possible. The slurry-transporting facility includes: pipe arrangements which branch out from a feed tank into the plurality of circuits; a transport pump provided in each of the pipe arrangement; a first valve provided upstream from the transport pump; a second valve provided downstream from the transport pump; and a uniting pipe arrangement formed by joining of the pipe arrangements at a predetermined position and connected to a LT heater. The uniting pipe arrangement is provided with a third valve configured to control the transportation of ore slurry to the LT heater and a pressure gauge configured to measure a pressure in the uniting pipe arrangement. | 11-26-2015 |
20150362083 | HARD SWAP SHUTTLE VALVE - In one aspect, a valve is provided. The valve includes a body having a first inlet, a second inlet and an outlet. The valve further includes a shuttle disposed in the body. The shuttle is movable within the body between a first position and a second position, wherein the first inlet is open and the second inlet is closed when the shuttle is in the first position, and wherein the first inlet is closed and the second inlet is open when the shuttle is in the second position. In addition, the valve includes a non-metallic seal assembly disposed adjacent each inlet. The seal assembly having a seal member with a V-shaped configuration. In another aspect, a method of moving a shuttle in a valve is provided. The method includes three stages of dampening which slows the velocity of the shuttle as it moves within a body of the valve toward an inlet. | 12-17-2015 |
20150362236 | ELECTRONIC EXPANSION VALVE AND CONTROL METHOD THEREOF - An electronic expansion valve of an air-conditioning system includes a valve body and an expansion valve controller; the valve body includes a refrigerant channel, a valve pin, and a stepping motor; the stepping motor controls the movement of the valve pin to adjust the size of the opening of the refrigerant channel; the expansion valve controller outputs different control signals according to different operation conditions of the electronic expansion valve; inputting different current to the stepping motor so as to drive the stepping motor to rotate; and controlling the movement of the valve pin to adjust the size of the refrigerant channel. The electronic expansion valve employs different current to drive a stepping motor according to different operation conditions, thus reducing system energy consumption, overcoming abnormal fault of the motor, and extending the service life of the electronic expansion valve. | 12-17-2015 |
20150369093 | VARIABLE ELECTROHYDRAULIC VALVE CONTROL SYSTEM - The invention relates to a variable electrohydraulic valve controller, comprising a piston, which is arranged in such a way that the piston acts on a valve, particularly a gas exchange valve of an internal combustion engine, in order to actuate said valve, a valve hydraulic chamber bounded by said piston, and at least one piston-cylinder unit, which is connected to the valve hydraulic chamber by means of a hydraulic line in which a switching valve is arranged. According to the invention, the piston ( | 12-24-2015 |
20150369429 | FACTORY COMPRESSED AIR SUPPLIES - A factory compressed air supply system and method are disclosed in which workstations ( | 12-24-2015 |
20160003366 | PRESSURE RELIEF MODULE - A paint circulating system | 01-07-2016 |
20160003367 | SPRINGLESS REGULATOR - A regulator includes a housing having an inlet, an outlet, and a chamber. The regulator also includes a barrier assembly disposed within the housing, and the barrier assembly includes a first portion moveable relative to the chamber, and a second potion configured to selectively fluidly connect the inlet to the chamber. The regulator further includes a head removably connected to the chamber. The head forms at least part of a first gap extending from the head to a first side of the first portion of the barrier assembly. In such an embodiment, the first gap is characterized by a first fluid pressure biasing the barrier assembly in a first direction away from the head. Additionally, the first portion includes a second side opposite the first side, and the second side forms at least part of a second gap extending from the second side to a base of the chamber. The second gap is characterized by a second fluid pressure, and the first portion is moveable in response to a change in the second fluid pressure. | 01-07-2016 |
20160003370 | Low Pressure Shut Off for a Pneumatic Tool - A low pressure shut off for a pneumatic tool. The tool may include an air path for input air. A shaft may be positioned along the air path and movable relative to the air path between a first position and a second position. First and second pistons may be spaced axially apart along the shaft and each may extend radially outward beyond the shaft. In the first position, the first piston may extend across the air path to block the air path. In the second position, the second piston may be positioned to be acted on by air from a secondary inlet to apply a force to the second piston that overcomes a biasing force and positions the first piston to allow air to flow along the air path. | 01-07-2016 |
20160007764 | REDUCED OUTFLOW INFLATION VALVE | 01-14-2016 |
20160010756 | CHECK VALVE DISC | 01-14-2016 |
20160010757 | VALVE FLAPPER SPRING STOP MECHANISM | 01-14-2016 |
20160018826 | SYSTEM, METHOD, AND APPARATUS FOR REGULATING THE FLOW OF GAS - Current natural gas measurement and regulation systems are sensitive to loss of electrical power, which can cause brownouts and curtailment of power in the local area if power systems reliant on natural gas are downstream from the station. A system for regulating the flow of natural gas and for guaranteeing the flow of natural gas from a source to at least one specific flow line even when the system is not provided with electrical power may be described. Such a system may include at least one of each of: a low-pressure regulation system, a high-pressure regulation system, an inlet gas filter, a relief valve, a low select relay, a differential pressure pneumatic relay, a reset relay, a 5-way universal relay, an electromechanically operated valve, a first manual multi-way valve, a second manual multi-way valve, a high calibration valve, a low calibration valve, a filter, and/or a differential pressure measurement system. | 01-21-2016 |
20160024759 | Method of Managing the Internal Fluid Movement of a Building - A method of managing the internal fluid movement of a building is utilized to prevent the bursting of pipes in a plumbing system from freezing. An at least one water dripping circulation device is utilized to circulate water through the plumbing system in order to prevent the pipes in the plumbing system from freezing. In the event of an emergency situation within the building such as flooding from a burst pipe, an electronic shut-off valve is utilized to disable the flow of water into the building, preventing further damage due to the flooding. Current water conditions and current environmental conditions are monitored in order to automatically circulate water through the plumbing system or disable the flow of water into the building. A user command may be transmitted to the at least one water dripping circulation device and the electronic shut-off valve as well for manual control. | 01-28-2016 |
20160032839 | COMPOSITIONS AND METHODS FOR GENERATING CAVITATION RESISTANCE - A method for generating cavitation resistance in a liquid, a portion of which can be in contact with a surface is disclosed. The disclosed method can be carried out by pressure-treating the liquid, the liquid portion in contact with the surface, and/or the surface for a sufficient time to develop resistance to cavitation. The disclosed method can be carried out when the surface is made of a material having a surface roughness that is greater than the rc of the liquid. Suitable surfaces include borosilicate glass, drawn glass, copper, lead, steel, cast iron, metal alloys and concrete. The surfaces can be ship and boat propeller surfaces, the interior of fuel lines and fuel storage containers or any other surface where cavitation can occur. | 02-04-2016 |
20160033054 | FLARE TIP VALVE DAMPENING - A pressure relief valve includes a valve seat at the outlet, a valve body, and an air dashpot damper. In some embodiments, the valve body is configured to engage the valve seat and move along a central axis relative to the valve seat in response to a pressure at the outlet to regulate a flow of combustible gas through the outlet. In some embodiments, the air dashpot damper includes a tubular member having a closed distal end and an open proximal end, and a piston member received within the tubular member. In some embodiments, the tubular member or the piston member is attached to the valve body, and the piston moves relative to the tubular member along an axis of the tubular member in response to movement of the valve body relative to the valve seat. In some embodiments, the pressure relief valve includes a plurality of the air dashpot dampers. | 02-04-2016 |
20160033977 | PLASMA PROCESSING DEVICES HAVING MULTI-PORT VALVE ASSEMBLIES - A plasma processing device may include a plasma processing chamber, a plasma electrode assembly, a wafer stage, a plasma producing gas inlet, a plurality of vacuum ports, at least one vacuum pump, and a multi-port valve assembly. The multi-port valve assembly may comprise a movable seal plate positioned in the plasma processing chamber. The movable seal plate may comprise a transverse port sealing surface that is shaped and sized to completely overlap the plurality of vacuum ports in a closed state, to partially overlap the plurality of vacuum ports in a partially open state, and to avoid substantial overlap of the plurality of vacuum ports in an open state. The multi-port valve assembly may comprise a transverse actuator coupled to the movable seal plate and a sealing actuator coupled to the movable seal plate. | 02-04-2016 |
20160040798 | Rapid Opening Gas Valve - A pneumatically operated gas valve includes a piston positioned in a cylinder with one closed end so that the piston may seat against a gas outlet to close the gas valve. A control reservoir may be formed in the cylinder between the piston and the closed end of the cylinder. Means for filling the control reservoir with gas to a control pressure may be provided so that the control pressure acting against the piston may close the gas valve. A release valve may be opened to allow the gas in the control reservoir to escape through an exhaust port to open the gas valve. | 02-11-2016 |
20160051061 | GAS COMMUNICATION DEVICE AND GAS RELEASE METHOD THEREOF - A gas communication device comprises a main body, at least one first pipe, at least one second pipe and at least one sealing member. The first pipe runs straight through the main body, and the first pipe has two ends respectively forming a first opening and a second opening; the second pipe comprises a first end and a second end, the first end being communicated with the first pipe, the second pipe extending from the first pipe out of the main body and forming a third opening at the second end; the at least one sealing member correspondingly seals the second opening of the first pipe. A gas release method using the gas communication device is also disclosed. | 02-25-2016 |
20160053725 | FUEL VAPOR CANISTER PURGE USING REVERSIBLE VACUUM PUMP - A method for a fuel system, comprising: during a first condition, purging fuel vapor from a fuel vapor canister to a fuel vapor accumulator; and then during a second condition, evacuating fuel vapor from the fuel vapor accumulator to a fuel tank. The fuel vapor accumulator increases the volume of the fuel system, providing a temporary storage for desorbed fuel vapor. In this way, canister breakthrough of hydrocarbons can be mitigated, thereby reducing bleed emissions. | 02-25-2016 |
20160060848 | CIRCULATING WATER PROVIDING SYSTEM AND CIRCULATING WATER PROVIDING METHOD - In one embodiment, a circulating water providing system includes a tank configured to store water, and a first pipe configured to feed the water to flow in a direction from the tank to one or more manufacturing apparatuses. The system further includes a second pipe configured to feed the water to flow in a direction from the one or more manufacturing apparatuses to the tank, and a third pipe configured to return the water from the second pipe to the tank. The system further includes a detector configured to detect a pressure of a gas in the second pipe, a valve disposed on the third pipe, and a controller configured to control an opening degree of the valve, based on the pressure of the gas detected by the detector. | 03-03-2016 |
20160060850 | FLUID STORAGE AND CIRCULATION SYSTEMS AND METHODS - The present disclosure provides fluid storage and circulation systems and methods. For example, a fluid system may comprise a tank, having a fluid inlet and a fluid outlet, a fluid intake line, in fluid communication with the fluid inlet, a fluid outlet line in fluid communication with the fluid outlet, the fluid outlet line having a first valve disposed thereon, an air release disposed on at least one of the tank, the fluid intake line, and the fluid outlet line, and a pump line in fluid communication with the fluid outlet line, the pump line having a first end, a second end, and a pump disposed therebetween. | 03-03-2016 |
20160061341 | VALVE DEVICE WITH ENHANCED RESEAT CAPABILITIES - A cartridge for being placed in a valve or other enclosure for use with a pressure system includes a cartridge body defining a cartridge cavity and having a poppet disposed therein. The poppet is seated against a valve seat that defines the outlet of the cartridge. The cartridge also defines an inlet, through which inlet pressure will flow into the cartridge cavity. The poppet is biased toward the valve seat and toward the outlet. As inlet pressure flows into the cartridge cavity, pressure buildup will act on a pressure area, which has an annular shape and excludes an outlet area defined by the valve seat. The poppet moves away from the valve seat and outlet and toward an inlet end of the cartridge in response to pressure buildup and moves back toward the outlet to reseat against the valve seat when pressure is relieved. | 03-03-2016 |
20160076334 | TOPSIDE PRESSURE PROTECTION SYSTEM - A pressure protection system includes a valve and a pipe bundle. A plurality of pressure sensors is coupled to the valve and communicatively coupled to a logic controller. The logic controller is operable to close the valve upon sensing a pressure above a predetermined limit. The pipe bundle includes a cylindrical coil of pipe that, in certain embodiments, may surround a riser or a wellhead. | 03-17-2016 |
20160076659 | SPLIT GATE VALVE - Provided in some embodiments is a system that includes a split gate valve including first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a closed position. The split gate valve includes a rolling actuator to reduce friction and to convert a rotational input into a linear motion to move the first and second gate sections between the open and closed positions. In other embodiments is provided a method that includes converting a rotational input into a linear motion to activate a split gate valve via a rolling actuator. The method also includes seating first and second gate sections of the split gate valve against opposite first and second seats to provide a double seal. | 03-17-2016 |
20160084039 | METHOD & APPARATUS FOR ACTUATING A DOWNHOLE TOOL - The presently disclosed technique provides a method for operating a valve in a wellbore by: applying a first fluid pressure to a bore of the valve; trapping the first fluid pressure in a portion of the valve; reducing the pressure in the bore of the valve to a second fluid pressure thereby creating a pressure differential between the portion of the valve and the bore of the valve; and opening the valve responsive to the pressure differential. The valve may employ a first piston disposed in the body to trap a first fluid pressure in a chamber to create a differential pressure across a second piston when a second fluid pressure is applied to open the valve to fluid flow therethrough. The valve and the method may be used to actuate another valve downhole, | 03-24-2016 |
20160084390 | MULTISTAGE FLOW CONTROL DEVICE AND METHOD OF CONTROLLING FLOW OF FLUID THROUGH A TUBULAR - A multistage flow control device includes, a tubular with a plurality of one or more openings, a plurality of seats positioned at the tubular, and a plurality of plugs that are movable relative to the tubular between at least a first position sealingly engaged with one of the plurality of seats and a second position displaced from the one of the plurality of seats. Each of the plurality of plugs is movable from the first position to the second position in response to a pressure differential applied thereacross achieving a threshold value with a first of the plurality of plugs moving at a first threshold value and a second of the plurality of plugs moving at a second threshold value. | 03-24-2016 |
20160084392 | Dual Flow Check Valve - A dual flow check valve having a check valve body with an interior chamber. There is a first inlet in open communication with the chamber and a second inlet in open communication with the chamber. There is also an outlet in open communication with the chamber. A pressure responsive valve element to permit one-way flow of a fluid through the first inlet into the chamber is mounted in the body. | 03-24-2016 |
20160091143 | Reducing Pressure Spikes During Hydrogen Dispensing - A method for lessening an initial pressure spike in a receiving tank caused by high pressure residual H | 03-31-2016 |
20160097127 | SYSTEMS AND METHODS FOR MEASURING ENTRAINED VAPOR - A system for supplying precursor gas to a substrate processing chamber includes a first mass flow controller including an inlet to receive a carrier gas and an outlet. An ampoule is configured to supply a precursor gas. A valve system, in fluid communication with the first mass flow controller and the ampoule, is configured to supply the precursor gas and the carrier gas to a momentum-based flow restriction member. A pressure sensing system is configured to sense an inlet pressure at an inlet of the momentum-based flow restriction member and an outlet pressure at an outlet of the momentum-based flow restriction member. A controller is configured to determine a flow rate of the precursor gas at the outlet of the momentum-based flow restriction member based on a difference between the inlet pressure and the outlet pressure. | 04-07-2016 |
20160097362 | VARIABLE AREA ORIFICE FOR AN ENGINE - A flow control system for a fuel includes an adjustable speed control valve configured to control a flow of fuel. A variable area orifice is arranged upstream of the speed control valve and is configured to control the flow of the fuel to the speed control valve. A flow control system for a turbine fuel and a method of controlling fuel flow are also disclosed. | 04-07-2016 |
20160097479 | MAGNETIC PRESSURE PULSE ATTENUATION - A magnetic pressure pulse attenuator can include a variable volume and at least two magnetic devices. A magnetic force between the magnetic devices varies in response to a pressure change in the volume. A fluid system can include a fluid volume with a variable pressure therein, and a magnetic pressure pulse attenuator including a variable volume in communication with the fluid volume. The variable volume can vary in response to a pressure variation, and the attenuator can further include a magnetic actuator which increases a magnetic force in response to an increase in the pressure. A method of attenuating pressure pulses in a fluid system can include connecting a variable volume of a magnetic pressure pulse attenuator to a fluid volume of the fluid system, the attenuator including a magnetic actuator which generates a magnetic force, and the force increasing in response to a pressure increase in the variable volume. | 04-07-2016 |
20160102772 | Pressure Relief System and Method - Embodiments of the present invention generally include a pressure relief system and methods of use, in which an apparatus includes an upper chamber fluidly connected to a pressurized fluid source, a lower chamber having an inlet and an outlet, a vertically moveable plate intermediate the chambers and disposed within a plate support, and connected to the plate by a vertical shaft, a vertically actuating lower chamber inlet valve including an inlet seal. Pressure relief is accomplished by controlling fluid pressure in the upper chamber such that varying downward force on the plate and therefore, via the shaft, the inlet seal, allows for selective opening/closing of the inlet valve as a function of upper chamber fluid pressure relative to the pressure exerted from a fluid source for which pressure relief is desired, beneath the inlet seal, whereby over-pressured fluid entering the lower chamber via the inlet is vented out the outlet. | 04-14-2016 |
20160102778 | Hydraulic Actuator Lockout - The subject matter of this specification can be embodied in, among other things, an apparatus that includes a valve with a valve housing having an axial bore, a first inlet port, a first outlet port, and a piston located within the axial bore and having a first fluid passage and configured to allow reciprocal axial movement of the piston within the axial bore between a first position in which the first fluid passage aligns axially with the first inlet port and the first outlet port to form a first fluidic circuit, and a second position in which the piston blocks at least one of the first inlet port and the first outlet port. The apparatus also includes a lockout assembly configurable to fix the piston into a selected position in a first configuration, and not interfere with reciprocal axial movement of the piston in a second configuration. | 04-14-2016 |
20160102811 | GAS PRESSURE REGULATOR AND METHOD FOR PILOTING SAID PRESSURE REGULATOR - A method for piloting a pressure regulator for an operative gas, the pressure regulator having a flow duct for the operative gas; a shutter causing a pressure drop in the operative gas, from a feeding pressure to a delivery pressure; a motorisation chamber delimited by a first movable wall associated with the shutter so that an increase in the delivery pressure causes a narrowing of the shutter; an elastic element exerting on a first movable wall a force directed to counteract the pressure force exerted by the operative gas on the first movable wall and widening the shutter; a compensation chamber housing a compensation gas and at least partially delimited by a second movable wall connected to the shutter to enable transferring on it the pressure force of the compensation gas, the method including the operation of regulating, moment by moment, the pressure of the compensation gas as a function of the delivery pressure. | 04-14-2016 |
20160109032 | System And Method For Safer Venting Of Hydrogen Or Other Combustible Gases - A system and process for intermittently venting combustible gas (c-gas) from a continuous source to the atmosphere are presented. The system includes a primary c-gas storage tank, at least one primary admission valve located upstream of the primary c-gas storage tank for regulating the flow of c-gas from the continuous source to the storage tank, a primary valve for atmospheric venting located downstream of the primary c-gas storage tank, and a primary PIC that opens the primary valve for atmospheric venting when pressure in the primary c-gas storage tank reaches a pre-determined PIC vent point. The system may include an auxiliary system to receive and vent c-gas while the primary admission valve is closed. The primary and auxiliary systems may also include an inert gas storage tank and inert gas valve for diluting the c-gas before it is vented to the atmosphere. | 04-21-2016 |
20160123481 | PILOT HYDRAULIC SYSTEM FOR OPERATING CONTROL VALVE - A pilot valve system is controlled by the pressure differential between a lower chamber and an upper chamber. A fluid passageway in the lower chamber fluidly connects an inlet to first and second outlets. By varying the pressure differential, the placement of a stem within the fluid passageway is varied so fluid can flow between the inlet and only one of the first and second outlets at a time. Pressure in the lower chamber can be varied by using a second fluid to exert pressure against a bottom end of the stem. Pressure in the upper chamber is varied by using an adjusting screw to urge a spring against the diaphragm. | 05-05-2016 |
20160131307 | METHOD FOR DETERMINING A HYDROGEN TANK PRESSURE - A method for determining a tank pressure in a tank before the tank is filled with pressurised, gaseous hydrogen, according to which method an accumulator, in which the hydrogen to be used to fill the tank is stored as liquid hydrogen, is connected to the tank by means of a filling line and a subsequent check valve of the tank wherein hydrogen is pumped from the accumulator into the filling line by means of a pump and the filling-line pressure arising in the filling line during the pumping is measured, wherein the check valve is opened if the filling-line pressure exceeds the tank pressure, and wherein the tank pressure is determined as the filling-line pressure that exists when the check valve is opened. | 05-12-2016 |
20160138727 | Discharge Vacuum Relief Valve for Safety Vacuum Release System - A discharge vacuum relief valve kit to provide vacuum relief for a SVRS pump in a hydraulic system is provided. The discharge vacuum relief valve kit includes a vacuum vent tube including a first end and a second end, a discharge vacuum relief valve coupled to the first end of the vacuum vent tube, and a vacuum vent screen coupled to the second end of the vacuum vent tube. The discharge vacuum relief valve is coupled to a drain plug opening of the SVRS pump. | 05-19-2016 |
20160139614 | VALVE CONTROL APPARATUS AND VALVE CONTROL METHOD - A valve control apparatus controls a valve for adjusting a pressure of a reaction gas supplied to a fuel cell. The valve control apparatus includes: an estimation portion that estimates a valve effective cross-sectional area of the valve; and an opening adjustment portion that adjusts opening degree of the valve with control amount corrected based on the valve effective cross-sectional area estimated by the estimation portion. | 05-19-2016 |
20160144675 | PRESSURE AND TEMPERATURE COMPENSATED CONTROL VALVE ASSEMBLY - A pressure and temperature compensated valve assembly includes a flow valve allowing inflation flow from a control port to a tire port and controlling deflation flow from the tire port to the control port. A throttle valve restricts deflation flow between the tire port and the control port when deflating the tire at high flow rates or when tire pressure is high, thus enabling the flow valve to be closed. The throttle valve includes a throttle diaphragm that throttles in response to flow from the tire port and which does not restrict inflation flow from the control port. The valve assembly further includes a temperature responsive member engaging the flow valve, and which deforms in response to a change in temperature in the valve assembly, thus negating temperature effects on the flow valve, allowing the flow valve to close at a consistent force across a range of operating temperatures. | 05-26-2016 |
20160145983 | LIFT VALVE WITH BELLOW HYDRAULIC PROTECTION AND CHATTER REDUCTION - Embodiments of the present disclosure generally relate gas lift valves for use in hydrocarbon wells for artificial lift operations. One embodiment of the present disclosure is a valve. The valve comprises a housing and a bellows disposed in the housing. A first side of the bellows is in fluid communication with an inlet of the housing, and a second side of the bellows faces a closed chamber in the housing. The valve further comprises a barrier assembly disposed in the closed chamber. | 05-26-2016 |
20160155653 | System And Method Of Opening A Load Lock Door Valve At A Desired Pressure After Venting | 06-02-2016 |
20160167456 | SYSTEM AND METHOD FOR DECREASING TIRE PRESSURE | 06-16-2016 |
20160168827 | DRINKING WATER SUPPLY DEVICE AND METHOD OF CONTROLLING A DRINKING WATER SUPPLY DEVICE | 06-16-2016 |
20160175510 | BIOLOGICAL FLUID FLOW CONTROL APPARATUS AND METHOD | 06-23-2016 |
20160186889 | Discrete Valve Flow Rate Converter - A discrete valve flow rate converter is provided to obtain a system flow through a valve in a dynamic hydronic pumping system, e.g., based on signaling containing information about the valve's differential pressure and the valve's hydronic characteristics calibration data. The discrete valve flow rate converter resolves the valve system flow rate directly and accurately with the valve's open position and the corresponding valve differential pressure signals associated therewith. The discrete valve flow rate converter may be applied to all kinds of valves as long as their open position and differential pressure associated with is available, e.g., including implementations for control valve applications, e.g., where the valve open position is controlled automatically and accurately, as well as implementations either for pumping system pressure controls with the flow rate known, such as adaptive hydronic system pressure controls, or as an alternative to sensorless pump monitoring and control. | 06-30-2016 |
20160201838 | Self-Contained, Fully Mechanical, 1 out of 2 Flowline Protection System | 07-14-2016 |
20160251212 | METHOD OF REGULATING PRESSURE IN PRESSURIZED BEVERAGE DISPENSER | 09-01-2016 |
20160377075 | COMPRESSOR SYSTEM AND METHOD FOR OPERATING THE COMPRESSOR SYSTEM IN DEPENDENCE ON THE CURRENT SITUATION OF THE RAIL VEHICLE - A rail vehicle compressor system and method for controlling the same uses a compressor driven by an electrical machine via a drive shaft to produce compressed air for at least one compressed air tank, wherein the electrical machine can be activated at least indirectly via a control device for operating the electrical machine at at least one speed between a maximum speed and a minimum speed, wherein at least one pressure sensor determines the pressure for the control device and a final control element continuously influences the speed of the electrical machine, wherein activation of the final control element takes place via the control device in accordance with a sensor device, comprising at least one sensor element for sensing at least one external boundary condition of the rail vehicle. | 12-29-2016 |
20160377195 | THROTTLING DEVICE - A throttling device comprising: a body having an inner surface and an outer surface, the inner surface defining a body cavity, the inner surface and the outer surface defining a plurality of body orifices in fluid communication through the body cavity; a throttle movably positioned within the body cavity proximate to a first orifice of the plurality of body orifices, the throttle movable to a closed position closing the first orifice and to an open position opening a fluid pathway between the first orifice and the body cavity; and a biasing element biasing the throttle to a partially-open position between the closed position and the open position. | 12-29-2016 |
20170236735 | Line Charge Volume With Integrated Pressure Measurement | 08-17-2017 |