Entries |
Document | Title | Date |
20080199333 | Compressor Unit - A compressor unit has a motor and a reciprocating-piston compressor which is driven via a slider-crank drive. The slider-crank drive includes a crank wheel and a connecting rod, which is connected to the crank wheel and a piston. The piston stroke can be adjusted by a threaded connection that allows an exact spacing between the crank drive and the piston to be set. | 08-21-2008 |
20080213107 | Reciprocating pump - The present invention is aimed to provide a pump which can not only obtain high discharging pressure and large capacity but obtain a substantially non-pulsating flow with a miniaturized configuration and even if the pump is operated with low power. To achieve the object, a pump of the present invention is characterized in including a pump chamber ( | 09-04-2008 |
20080219868 | Linear Compressor Cylinder and Head Construction - A cylinder assembly for a linear compressor includes a cylinder chassis with an inner surface defining a cylinder space extending along an axis from a cylinder head end. The cylinder space is at least substantially cylindrical. A cylindrical cylinder liner, open at both ends is located within the chassis. The outer surface of the liner is engaged against the cylinder space defining portion of the inner surface of the chassis. A valve plate is being bonded or fused to the cylinder head end of the cylinder liner. The valve plate sealingly closes the cylinder head end of the cylinder space. | 09-11-2008 |
20080247889 | Refrigeration device with improved DC motor - A miniature cooling device includes numerous improvements capable of increasing the reliability and useful lifetime of the device, as well as improving electrical power to cooling power conversion efficiency. The improvements include a unitary DC motor shaft design that incorporates a unitary mass flywheel into the shaft element and provides a solid shaft cross-section for increasing magnetic flux density in the DC motor. Additional improvements include a bend resistant flexible vane in the DC motor to compression piston drive coupler, reduced dead space volume within the compression cylinder, improved heat dissipation by a cylinder head cover and an athermalized compressor design that provides uniformly efficient operation over a wide range of operating temperatures. Further improvements include fabrication and coating improvements that increase the life of compression piston and compression cylinder wear surfaces. | 10-09-2008 |
20080267797 | Linear Compressor - A linear compressor has a rigid frame ( | 10-30-2008 |
20080286133 | AIRFLOW GENERATOR - The present invention provides an airflow generator, including a plate, a magnetic brake and a housing. The plate has a pivot point and a swinging end. Two magnetic poles are assembled at predefined locations on the plate nearby the pivot point. The magnetic coil is located opposite to magnetic poles of the plate, then a controller is used to control the magnetization state of the magnetic coil, thus yielding suction and repulsion with magnetic pole and driving the swinging end of the plate. The volume of the generator of the present invention is minimized, but an efficient heat-radiating effect is achieved to resolve the bottleneck of a typical radiator fan, making it applicable to the heat-radiating structure of various small-sized electronic devices. | 11-20-2008 |
20080298988 | Air pump having an adjustable interval between an electromagnetic device and an air chamber - An air pump having an adjustable interval between an electromagnetic device and an air chamber includes at least a upper cap, a base, an electromagnetic device, an air chamber and a regulator. The regulator has a rotary knob to drive a bolt and move a coupling member up and down. The coupling member has struts at two sides to force a guiding slot of a coupling seat to move thereby to drive the electromagnetic device to move forwards and rearwards for adjustment. As a result the moving frequency of the crank in the air chamber can be altered to adjust the air supply amount being delivered. | 12-04-2008 |
20080304984 | Therapeutic device - A handheld device includes a casing having a cylinder presenting an opening for placement upon a user's skin. A motor is housed within the casing. A piston driven by the motor oscillates within the cylinder toward and away from the skin of a user to cause a pressure fluctuation thereagainst. | 12-11-2008 |
20080310977 | Compact Compressor - A compact compressor comprising a first tubular housing portion; a second tubular housing portion having a first end region open to the first tubular housing portion and a second end region defining a compression chamber and housing a piston; an electric motor carried by the first tubular housing portion; a driving means connecting the piston to the electric motor; a valve plate seated against the second end region of the second tubular housing portion; and an end cover fixed to the second tubular housing portion and acting against the valve plate and providing, internally and through the valve plate, fluid communications between the compression chamber and the suction line and discharge line of a refrigeration circuit to which the compressor is coupled. | 12-18-2008 |
20090016913 | BALANCED DUAL ROCKING PISTON PUMPS - Piston assemblies for rocking piston compressors, diaphragm compressors and vacuum pumps are provided wherein the overall mass of each piston assembly is identical to that of the other assembly despite having rod tops, retainers and diaphragms of different diameters and therefore different capacities. Each piston assembly includes a connecting rod connected to a rod top that supports a cup seal and a retainer or retainer plate. The mass of each rod is equal to that of the other rod despite the differing geometries. The mass of each retainer is the same as that of the other retainer despite the differing geometries. The overall length and stroke length of each piston assembly is the same. As a result, centers of gravity of the piston assemblies are continuously balanced on either side of the drive shaft in terms of distance from the drive shaft and in absolute value. Alternatively, in embodiments where the first and second piston assemblies have unequal stroke lengths, and/or the first and second connecting rods having different masses, and/or the first and second retainers having different masses, balance is achieve by equalizing a product of an acceleration of the first piston assembly and combined masses of the first retainer and the first connecting rod with a product of an acceleration of the second piston assembly and combined masses of the second retainer and the second connecting rod according to the equation: | 01-15-2009 |
20090047153 | HYBRID HYDRAULIC-ELECTRIC RAM PUMPING UNIT WITH DOWNSTROKE ENERGY RECOVERY - A hybrid hydraulic-electric pumping unit ( | 02-19-2009 |
20090092508 | ELECTRIC THRUST PISTON PUMP DEVICE - A thrust piston pump apparatus PM | 04-09-2009 |
20090175743 | Compressor and manufacturing method of the same - There is disclosed a compressor capable of easily adjusting top clearances in a case where metal gaskets are used as a seal material between a valve plate and a casing main body. In the compressor in which pistons reciprocate in cylinders of the casing main body constituting a casing to perform a compression work and which is constituted by fixing cylinder heads with bolts to the casing main body via the seal material and the valve plate, the seal material to be interposed between the valve plate and the casing body is constituted by superimposing a plurality of metal gaskets on one another. | 07-09-2009 |
20090191073 | MAGNETIC PUMPING MACHINES - Magnetic pumping systems and methods of pumping using such systems are disclosed. In one embodiment, a system for pumping fluid comprises: a substantially cylinder-shaped pump housing ( | 07-30-2009 |
20090257893 | Long-Life Pump Unit - The pump unit according to the invention is formed by assembling a pump module ( | 10-15-2009 |
20090263262 | Linear Compressor - A linear compressor ( | 10-22-2009 |
20090263263 | SUCTION DEVICE - A suction device ( | 10-22-2009 |
20090285704 | OIL-LESS AIR COMPRESSOR - The present invention provides an air compressor, characterized in that the piston head has a concave portion having a plurality of through holes therein and a reed piece having a smaller area than that of said concave portion is disposed in said concave portion, said reed piece having an opening in its center to allow a seizing member, respectively, which is seized on a top center of said piston head, for freely moving through said opening, and said seizing member having a confining portion to confine said reed piece within a predetermined space for moving so that said reed piece moves toward or away from said plurality of through holes by means of reciprocally moving said piston rod to improve the air compression efficiency while said air compressor is operating. | 11-19-2009 |
20100040490 | Volumetric Infusion Pump and Method - In a first embodiment, an electromagnetic pump has a housing including first and second spaced apart electromagnets. A controller for controlling the magnets and a power source for powering the electromagnets within the housing. A removable cassette is in engagement with the housing between the first and second electromagnets and includes a cavity. The pump also has inlet and outlet ports in communication with the cavity and a magnetic piston disposed within the cavity. In preferred embodiments the electromagnets are capable of operating at different strengths and different polarities. | 02-18-2010 |
20100047093 | COMPRESSOR - A compressor has a hermetic container filled with a lubricant and accommodates an electric element provided with a stator and a rotor and a compressing element, wherein the compressing element includes a shaft, a cylinder block, a piston, a connection mechanism, a bearing, and a thrust ball bearing provided between the rotor and a bearing end surface as an end surface of the bearing, and wherein the thrust ball bearing includes a plurality of balls, a holder portion for holding the balls, upper and lower races disposed on and beneath the balls, a rotation regulation portion for regulating a rotation of the lower race, and a thrust surface provided at the bearing end surface so as to contact with a lower surface of the lower race. | 02-25-2010 |
20100074776 | Subsea Chemical Injection System and Pumps Therefor - A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator ( | 03-25-2010 |
20100111727 | Solenoid actuator - A solenoid actuator ( | 05-06-2010 |
20100119388 | Coolant Compressor - The invention relates to a refrigerant compressor having a compressor housing in which a cylinder housing ( | 05-13-2010 |
20100129241 | FLUID PUMP - A pump for pumping a fluid is disclosed. The pump comprises an inlet, an outlet, an internal volume disposed between said inlet and said outlet, a first pumping arrangement operable to pump a first volume of fluid from the inlet means into the internal volume, and a second pumping arrangement operable to pump a second volume of fluid from the internal volume into the outlet. In a first mode of operation of the pump, the first volume of fluid is greater than the second volume of fluid such that, in use, the pressure of the fluid within the internal volume is elevated to a level above the pressure of the fluid at the inlet. | 05-27-2010 |
20100135831 | Miniature Pump Device with an Anti-Free Flow Valve - A miniature unidirectional valve configured to restrict the free flow of fluid through the valve includes a valve body having an inlet and an outlet. A flexible membrane is movably disposed over the inlet and outlet, and movable between an open position and a closed position. The flexible membrane is movable by a pressure from the inlet to move the membrane to the open position. A control chamber is disposed in the valve body adjacent the fluid flow path, and configured to apply a pressure against the membrane to move the membrane to the closed position to restrict fluid flow through the valve. A preload structure is associated with the flexible membrane, and biases the flexible membrane toward the closed position. | 06-03-2010 |
20100150755 | HERMETIC COMPRESSOR - A hermetic compressor to conduct electricity to a stator coil without peeling off a coating formed on the coil while preventing the separation of the stator coil or lead wire from a compressible terminal. In the hermetic compressor including a hermetic container, a compression device to compress a refrigerant, a drive device to drive the compression device, the drive device including a stator formed by winding the stator coil on a core and a rotor to rotate inside the stator, the lead wire extending from a terminal block to receive electricity, and a compressible terminal to be compressed after the stator coil and the lead wire are inserted into the compressible terminal, the stator coil is formed by covering an aluminum wire with an enamel coating, and the compressible terminal includes electricity-conduction protrusions to piece the enamel coating so as to come into contact with the aluminum wire. | 06-17-2010 |
20100158721 | HERMETIC COMPRESSOR AND METHOD OF MANUFACTURING THE SAME - Provided is a hermetic compressor in which an electric element having a stator and rotor provided therein and a compression element driven by the electric element are housed and the compression element includes a shaft which has a main shaft portion and an eccentric shaft portion, a cylinder block, a main shaft bearing which is formed in the cylinder block and supports the main shaft bearing of the shaft, a piston which reciprocates, a connection mechanism which connects the piston to the eccentric shaft portion, and a thrust-ball bearing, the thrust ball bearing having a plurality balls and a holder portion for holding the balls, and the holder portion being formed of polymer obtained by polycondensating diaminobutane and adipic acid. | 06-24-2010 |
20100178179 | Multiplex Reciprocating Pump - A reciprocating pump assembly comprises: a motor with a rotary motor drive shaft; a cam coupled to the motor drive shaft with an axis of rotation and a cam channel cut generally axially into a radial face of the cam; and multiple reciprocating pump units arranged radially about the cam axis of rotation, each with an inlet valve, an outlet valve, a plunger and a plunger sleeve, with a free end of its plunger coupled to the cam by way of a cam follower riding in the cam channel; wherein rotation of the motor output drive shaft causes the plunger in each pump unit to independently reciprocate in its respective sleeve. | 07-15-2010 |
20100196178 | METERING PUMP - The invention relates to a metering pump for feeding out viscous materials, which pump comprises a housing having an inlet, connectable to a viscous material source, and an outlet; a valve body of cylindrical basic shape, which is rotatable into at least two positions by means of a drive unit, a first position allowing a flow of the said material from the inlet to the housing and a second position allowing a flow of the said material from the housing to the outlet. The pump also comprises a cylinder device connected to the housing, having a controllable piston intended to achieve the said flow of material, and at least one device for cleaning the metering pump. The said cleaning device comprises at least one nozzle for cleaning agent, disposed in a valve-body-facing part of the piston. The invention also relates to a method for cleaning such a metering pump. | 08-05-2010 |
20100196179 | FUEL SUPPLY SYSTEM FOR ENGINE - When a flywheel rotates and a first magnet comes close to and opposes a fuel pump, a plunger is moved toward a partition wall of a pump chamber against an urging force of a spring by a magnetic repulsive force generated between the first magnet and a second magnet in the fuel pump. When the first magnet separates from the fuel pump, the plunger is moved and returned toward a protective cover by the urging force of the spring. As a result, the plunger in the fuel pump reciprocates with rotation of the flywheel, and the capacity of the pump chamber increases and decreases, so that fuel is sucked and discharged. | 08-05-2010 |
20100209269 | ALTERNATIVE PISTON PUMP FOR MACHINES DISPENSING DYES, PAINTS OR SIMILAR PRODUCTS - An alternative piston pump, able to take in and dispense a determinate quantity of a dye, paint or similar product, comprising a container having a cylindrical cavity inside which a piston is able to slide axially, and a sleeve extendible axially and rigid radially, inserted into said cylindrical cavity and having a first end connected to said piston. The sleeve extendible axially and rigid radially has a second end connected through a flange to a closing plate, able to close one end of the cylindrical cavity, and the piston and the sleeve extendible axially and rigid radially are made in a single piece. | 08-19-2010 |
20100221129 | HERMETIC COMPRESSOR - A hermetic compressor of the present invention includes a thrust-ball bearing having balls ( | 09-02-2010 |
20100272590 | MOTORIZED VACUUM/PRESSURE PUMP AND STOPPER - A pump and stopper combination for vacuum or pressure sealing a container. The stopper has a pour opening and a one-way valve movable between an operative position to permit one-way flow of fluid into or out of the container when the pour opening is in the closed position, and an inoperative position when the pour opening is in the open position. A vacuum/pressure pump that connects to the stopper includes a drive adapted to convert rotational movement of a motor to reciprocating motion of a pump piston in a chamber, and one-way pump valves mounted in a selectable flow control member. The selectable flow control member is movable between pressure and vacuum positions to permit passage of fluid only into or out of the pump chamber. The pump also includes an indicator for indicating when a desired level of vacuum or pressure has been reached. The pump may be incorporated into a container lid. | 10-28-2010 |
20100322795 | DYNAMIC CONTROL OF AN ELECTRIC DRIVE - A fluid delivery system includes a pump operably coupleable to a source of fluid. A reciprocating electromagnetic actuator is coupled to the pump and has a coil that when energized causes the actuator to drive the pump. Coil current sensing circuitry is configured to provide an indication of current flowing in the coil. A controller is coupled to the coil current sensing circuitry and is configured to calculate a coil drive parameter based upon a plurality of coil current indications from the coil current sensing circuitry. Coil drive circuitry is coupled to the controller and is configured to supply current to the coil based on the coil drive parameter. | 12-23-2010 |
20100322796 | HERMETIC COMPRESSOR - Disclosed is a hermetic compressor. A plurality of cylinders are disposed at upper and lower sides, a communication path is formed so as to communicate inlets of the cylinders with each other, and a suction pipe connected to a system is coupled to an inlet of one cylinder. This more reduces the number of components and processes than in the conventional case that a plurality of suction pipes are connected to a plurality of cylinders. Accordingly, the fabrication costs can be reduced, and increase of vibration of the hermetic compressor due to resonation of the suction pipes can be prevented. Furthermore, the hermetic compressor can have an enhanced performance by optimizing a specification of the suction pipe and its suction path. | 12-23-2010 |
20110008192 | Front Pull-Out Hydraulics For Pumps - In one embodiment of the disclosure, a dish insert may be installed in a pump head such that the dish insert may be removed from the reagent head side of the pump head. Port holes permit movement of hydraulic fluid through the dish insert. The dish insert may be affixed to the pump head by fasteners. The dish insert may include removal means. For example, removal holes may be provided wherein fasteners may be threaded until the fasteners “bottom out” on the pump head. In this way, fasteners may force the dish insert out of the mounted position by acting against the threads as a jack screw. | 01-13-2011 |
20110020155 | ULTRA HIGH PRESSURE PUMP WITH AN ALTERNATING ROTATION TO LINEAR DISPLACEMENT MECHANISM - A high pressure pump including a linear actuator comprising a servo motor adapted to axially rotate a hollow rotor shaft in alternating directions, the servo motor having a stator positioned co-axially around the hollow rotor shaft with an interior of the rotor shaft being co-axially coupled to a drive member to convert axial rotation into reciprocal displacement, the drive member being constrained against linear movement and threadingly supporting a shaft (to impart linear displacement of the shaft and an encoder monitoring movement of the drive member. At least one piston is coupled to the shaft and the piston is arranged within a cylinder to define a pumping chamber, whereby alternating rotation of the rotor shaft causes reciprocal linear displacement of the piston to pressurise fluid in the pumping chamber A drive mechanism is also disclosed and includes a controller coupled to a servomotor and an encoder to measure movement of the hollow rotor or output shaft and send a feedback signal proportional to the movement to the controller. | 01-27-2011 |
20110027111 | HERMETIC COMPRESSOR - A hermetic compressor includes a closed vessel for storing lubricating oil, an electric-driving element, and a compressing element driven by the electric-driving element. The compressing element includes a cylinder block forming a compression chamber, a piton that reciprocates inside the compression chamber, and an oiling device for supplying the lubricating oil to an outer circumference of the piston. A first oil groove is concavely formed on the outer circumference of the piston, and a second oil groove is concavely formed on a side opposite to the compression chamber relative to the first oil groove. The second oil groove has a spatial volume same or greater than that of the first oil groove. An expanded clearance portion is provided such that a clearance between the piston and the cylindrical hole portion broadens from a top dead point to a bottom dead point. | 02-03-2011 |
20110058968 | RECIPROCATING COMPRESSOR - The present invention discloses a reciprocating compressor which can linearly reciprocate a piston inside a cylinder as a linear motor is driven, compress a refrigerant by sucking the refrigerant into a compression space between the cylinder and the piston, and then discharge the same. In the reciprocating compressor, the piston is operated at a top dead center position and in a resonance state by symmetrically applying a voltage even if load is varied, the elastic coefficient of the mechanical spring is set in consideration of the degree of shift of the piston influenced by the gas springs varied by load, and the initial value of the piston for maintaining the stroke of the piston is set so as to correspond to a required cooling capacity condition. Accordingly, electric power consumption caused by applying an asymmetrical voltage can be reduced, a tuning operation for applying an asymmetrical voltage can be omitted, thereby decreasing inconvenience. Further, the piston is operated at the top dead center position and in the resonance state under all load conditions, thereby further increasing operation frequency. | 03-10-2011 |
20110076170 | PIEZOELECTRIC MICRO-BLOWER - A piezoelectric micro-blower includes an inner case to which a peripheral portion of a vibrating plate including a piezoelectric element is fixed such that a blower chamber is defined between the inner case and the vibrating plate and an outer case arranged to cover an outer periphery of the inner case with a gap therebetween. The inner case is elastically retained in the outer case by a plurality of connecting portions. A first opening is provided in a top plate portion of the inner case that faces a central portion of the vibrating plate, and a second opening is provided in a top plate portion of the outer case that faces the first opening. A central space is provided between the top plate portions, and fluid introduced from the outside is guided to the central space through the gap between the inner and outer cases. The vibrating plate is driven in a bending mode so that air is sucked into the central space and is discharged through the second opening. The connecting portions prevent leakage of vibration of the vibrating plate from the inner case to the outer case, thereby reducing energy loss. | 03-31-2011 |
20110194957 | LINEAR COMPRESSOR - There is provided a linear compressor ( | 08-11-2011 |
20110256005 | MOTOR DRIVE DEVICE AND ELECTRIC EQUIPMENT UTILIZING THE SAME - Brushless DC motor ( | 10-20-2011 |
20110280751 | AIR PUMP - An air pump structured to facilitate the installation of a pair of pistons includes a casing ( | 11-17-2011 |
20110280752 | AIR PUMP - There is provided an air pump in which vibration noise generated in a drive unit of the pump is suppressed from being transmitted to the outside through a suction passage. A casing ( | 11-17-2011 |
20110293449 | ELECTROMAGNETIC PUMP - A piston is slidably provided in a cylinder and partitions a first pump chamber, and a second pump chamber connected to an object to be operated. A first on-off valve is provided between the first pump chamber and the outside. A second on-off valve is provided in a connecting flow passage that connects the first pump chamber and the second pump chamber to each other. When the piston is moved forward by an electromagnetic force of a solenoid portion, a capacity of the first pump chamber decreases, and a capacity of the second pump chamber increases. When the piston is moved backward by a biasing force of a spring, the capacity of the first pump chamber increases, and the capacity of the second pump chamber decreases. A pressure receiving area of the front face of the piston is larger than that of the back face thereof. | 12-01-2011 |
20110311382 | VALVE ACTUATION SYSTEM FOR A SUCTION VALVE OF A GAS COMPRESSOR FOR REFRIGERATION EQUIPMENT - The present invention refers to a system for actuation in an ad mission valve ( | 12-22-2011 |
20120014821 | RECIPROCATING COMPRESSOR - According to the present invention, a recess ( | 01-19-2012 |
20120063936 | MODULAR FLUID END FOR A MULTIPLEX PLUNGER PUMP - A modular fluid end for a multiplex plunger pump, each module machined from a single-piece steel forging with a plunger bore intersected by a linear suction/discharge bore and pumped fluid is discharged straight out through a top of the module into a discharge manifold made up using 1502 frac iron components. A compression clamp applies a crush load to opposed sides of the modules to extend service life. | 03-15-2012 |
20120070324 | Pump Assembly - A pump assembly as a feedback pump of a hydraulic, slip-controlled vehicle brake system having a piston pump and an electric motor for driving it is disclosed. The electric motor is embodied as an external rotor and the stator is mounted on a printed circuit board which has an electronic system for commutating the electric motor and/or for performing slip control of the vehicle brake system. | 03-22-2012 |
20120100021 | HERMETIC COMPRESSOR - A hermetic compressor includes a hermetic container, a motor element, and a compression element. A shaft of the compression element includes a main shaft, a flange projecting from the main shaft, and an eccentric shaft connected to the flange. A main bearing has a thrust surface contacting and sliding on the flange of the shaft. The thrust surface consists of a first portion and a second portion. The first portion is farther from the compression chamber than the center axis is. The second portion is closer to the compression chamber than the center axis is. The area of the first portion is larger than the area of the second portion. This hermetic compressor has a high efficiency and a high reliability. | 04-26-2012 |
20120148428 | HYDRAULIC MODULATOR - A hydraulic modulator including a motor having a motor housing, a stator, a rotor, and a motor shaft. A power transmitting mechanism is provided for transmitting the power of the motor to the outside thereof. A master cylinder includes a piston linearly movable by the power transmitted by the power transmitting mechanism. The master cylinder is arranged so as to overlap the motor housing in such a manner that the axis of the master cylinder is substantially perpendicular to the axis of the motor shaft. The master cylinder is arranged on one side of the motor housing in the range corresponding to the axial length of the motor shaft. The length of the hydraulic modulator along the motor shaft falls within the axial length of the motor shaft, so that the hydraulic modulator can be reduced in size. | 06-14-2012 |
20120183419 | HERMETIC COMPRESSOR - In a hermetic-type compressor, a piston has a sliding face which slides on an inner wall of the cylindrical hole and is reciprocatably inserted in the cylindrical hole. A connecting rod connects an eccentric shaft part and the piston. The cylindrical hole has a tapered part, whose inside diameter dimension gradually increases from a top dead center of the piston toward a bottom dead center, and an end part on the shaft side. A reciprocation direction of the piston is substantially a horizontal direction. A recessed part, which is recessed to the inside in a radial direction of the piston and holds lubricating oil, is provided in the sliding face of the piston. A part on the lower side in the vertical direction of the piston which comes into contact with the end part on the shaft side of the cylindrical hole when the piston is positioned in the bottom dead center is a part of the sliding face. | 07-19-2012 |
20120207628 | SPRING-LESS BURIED MAGNET LINEAR-RESONANT MOTOR - A spring-less buried magnet linear-resonant motor is provided. The motor includes a buried magnet system and a stator operable to produce an alternating magnetic field exerting alternating axial forces on the buried magnet system that has a self-centering force and a required stiffness to reciprocate at a frequency near an alternating current (AC) supply frequency. | 08-16-2012 |
20120207629 | AIR COMPRESSOR AND PISTON FOR AIR COMPRESSOR - An air compressor that can take in air at a particular pressure at the input and compress the air such that it exits an output at a much greater pressure until a desired pressure is reached in a piston assembly, at which point, the air compressor can shut off automatically by moving a switch. A tank does not need to be part of the compressor assembly, and thus, the air compressor is capable of determining the pressure and shutting off at the desired pressure regardless of the particular tank that is removeably connected to the air compressor. The switch can be moved to an off position by an arm pivotally connected to a carriage. In addition, the air compressor can utilize a piston assembly having a plurality of stationary o-rings for receiving a piston. | 08-16-2012 |
20120244025 | ELECTROMAGNETIC PUMP - An electromagnetic pump including a pump portion that includes a cylinder that is formed with an intake port and a discharge port that are in communication with a flow passage of a fluid pressure circuit, a pin groove, and a piston that through a reciprocal movement inside the cylinder suctions a fluid from the intake port and discharges the fluid from the discharge port; and an electromagnetic portion that reciprocates the piston. Inserting the pump portion inside a fluid pressure circuit with the electromagnetic portion externally exposed from the fluid pressure circuit, and inserting a pin from outside into the pin groove incorporates the electromagnetic pump inside a fluid pressure circuit, and the pin groove is formed at a position farther from an electromagnetic portion side than the discharge port. | 09-27-2012 |
20120257997 | Air Compressor - An air compressor includes a compressor body, an electric motor, and a gear mechanism that transmits power of the electric motor to the compressor body to prevent intrusion of dust into a casing of the electric motor for improving reliability. In the example in which a gear casing, a load side casing and a seal cover that define the internal space of the gear casing and the internal space of an electric motor main casing, and a non-contact type visco seal provided to a gap in a portion where a rotating shaft of the electric motor penetrates through the load side casing are provided, a communication hole that communicates between a gap from the visco seal toward the electric motor in the load side casing and seal cover and the outside of the air compressor not through the internal space of the electric motor main casing is formed. | 10-11-2012 |
20120315167 | QUINTUPLEX MUD PUMP - A quintuplex mud pump includes a pair of motors ( | 12-13-2012 |
20130108487 | Air-Cooled Reciprocating Compressor Having Special Cooling Air Conduction | 05-02-2013 |
20130129540 | LINEAR COMPRESSOR - A linear compressor according to the present invention can prevent leakage of a magnetic force by changing the construction of a linear motor. As the construction of the linear motor is changed, a mechanical spring constant is set smaller in consideration of a magnetic spring constant, so that the size of springs supporting a piston in the reciprocal linear motion direction can be reduced and components supporting the springs can be removed. Therefore, the linear compressor achieves a small size/a light weight. With the characteristics of the linear motor construction, the linear compressor can suppress a stroke spreading influence and easily expand a compression capacity according to a load. | 05-23-2013 |
20130224051 | COMPRESSOR AND VACUUM MACHINE - A compressor includes: a cylinder; a piston arranged within in the cylinder; an outer rotor type motor causing the piston to reciprocate within the cylinder; an air pipe communicated with the cylinder such that air flows into the air pipe in response to reciprocation of the piston; and a fan secured to a rotor of the outer rotor type motor and facing at least a part of the air pipe. | 08-29-2013 |
20130230420 | HERMETIC COMPRESSOR - A hermetic compressor includes a closed vessel for storing lubricating oil, an electric-driving element, and a compressing element driven by the electric-driving element. The compressing element includes a cylinder block forming a compression chamber, a piton that reciprocates inside the compression chamber, and an oiling device for supplying the lubricating oil to an outer circumference of the piston. A first oil groove is concavely formed on the outer circumference of the piston, and a second oil groove is concavely formed on a side opposite to the compression chamber relative to the first oil groove. The second oil groove has a spatial volume same or greater than that of the first oil groove. An expanded clearance portion is provided such that a clearance between the piston and the cylindrical hole portion broadens from a top dead point to a bottom dead point. | 09-05-2013 |
20130336820 | STRAIN AMPLIFICATION STRUCTURE AND SYNTHETIC JET ACTUATOR - A strain amplification structure has a frame with a hexagonal structure incorporating a plurality of rigid beams that are connected to opposing end beams by a plurality of flexible joints. A piezoceramic actuator assembly is connected to the opposing end beams having a collar including an opening. A shaft providing an output is connected to the plurality of rigid beams with flexible joints and passes through the opening in the collar for non-interfering motion orthogonal to the actuator assembly. | 12-19-2013 |
20140037476 | MOTOR FOR COMPRESSOR PUMPS AND RELATED COMPRESSOR ASSEMBLY - An electric motor is provided, including a stator having two electromagnetic poles diametrically opposite each other, a rotor including a rotor core configured for being rotatably mounted with a shaft for rotation relative to the stator. The rotor core is formed by stacking a plurality of laminations each of which has a central hole and a plurality of generally radially extending teeth. The stator and the rotor have geometric attributes such that: R | 02-06-2014 |
20140072461 | LINEAR COMPRESSOR - A linear compressor is provided. The linear compressor includes an electro-magnetic spring and a casing that defines a chamber. A piston is received within the chamber of the casing. The electro-magnetic spring can apply a non-linear force to the piston such that a total spring force applied to the piston during a compression stroke is substantially linear. | 03-13-2014 |
20140072462 | LINEAR COMPRESSOR - A linear compressor is provided. The linear compressor includes a casing that defines a chamber and a piston slidably received within the chamber of the casing. A driving coil is configured for selectively urging the piston to slide within the chamber of the casing. An electro-magnetic spring is configured for urging the piston towards a default position when the piston is positioned away from the default position. The electro-magnetic spring can permit the linear compressor to operate at a resonant condition. | 03-13-2014 |
20140099219 | ELECTROMAGNETIC PUMP - An electromagnetic pump including a piston, an electromagnetic portion that moves the piston forward, and a spring that moves the piston backward. The piston including a discharge check valve built in the piston. The piston is formed with a hollow portion that opens in an inner peripheral portion of an end surface of the piston, and a spring receiving surface formed on an outer peripheral portion of the end surface to receive the spring. The discharge check valve is fixed through plastic deformation of the piston by inserting the discharge check valve into the hollow portion from an opening of the piston, and partially pressing a portion of the spring receiving surface of the piston on an inner peripheral side after the insertion to recess the spring receiving surface and elevate an inner peripheral surface of the piston surrounding the hollow portion. | 04-10-2014 |
20140099220 | ELECTROMAGNETIC PUMP - An electromagnetic pump configured with an electromagnetic portion that generates an electromagnetic force for pressing the piston, and an urging member that urges the piston in a direction opposite to the electromagnetic force. A strainer member including a disk-shaped portion which has a disk shape and in which a strainer surface is formed, and a side portion that extends from an outer peripheral edge of the disk-shaped portion. A suction check valve being capable of sucking the working fluid via the strainer surface. The piston, the urging member, the suction check valve, and the strainer member are sequentially inserted into the cylinder from a side opposite to the electromagnetic portion, and the cover member is attached so as to press the strainer surface. | 04-10-2014 |
20140105768 | HYDROSTATIC ACTUATOR AND ARRANGEMENT OF A HYDROSTATIC ACTUATOR IN A MOTOR VEHICLE - A hydrostatic actuator and an arrangement for attaching it to a receiving component are provided. The hydrostatic actuator has a master cylinder containing a housing and a piston movable axially within the housing which acts on a pressure chamber filled with a pressurizing agent. The piston is driven by a rotary-driven electric motor having a stator and a rotor, by a rolling planetary transmission that converts the rotary drive to an axial motion. In order to be able to produce such a hydrostatic actuator with little need for construction space, cost-effectively and with better quality, a supporting of the rolling planetary transmission is simplified, and the cooling and shielding of an electronic controller and the pressure behavior of the hydrostatic actuator is improved. | 04-17-2014 |
20140112806 | PUMP ASSEMBLY - A pump assembly for use in a selective catalytic reduction system, the pump assembly comprising: a pump sub-assembly defining a pump axis; and a housing sub-assembly including a cavity for receiving the pump sub-assembly and comprising an inlet port for receiving a reagent for supply to the pump sub-assembly via a flow path; wherein at least one seal member is provided to seal the pump sub-assembly within the housing sub-assembly, the seal member being provided in a groove in an outer face of the pump sub-assembly, the seal member providing a fluid tight seal. | 04-24-2014 |
20140127058 | PUMP DISCHARGE VALVE ASSEMBLY - A plunger pump includes a housing with a discharge valve in communication with an outlet. The housing includes a bore that slidably accommodates a plunger. The housing also includes an inlet. The plunger has a closed proximal end connected to an actuator and a distal end with an outlet valve. The plunger also includes a sidewall with an opening that is in communication with the inlet of the housing. Fluid flows through the inlet and through the opening and into the plunger. When the plunger is retracted away from the discharge valve, the outlet valve of the plunger opens thereby providing fluid for the housing bore. As the plunger is moved towards the discharge valve, pressure in the housing bore increases thereby opening the discharge valve and permitting the pressurized fluid to exit through the outlet. | 05-08-2014 |
20140161650 | LINEAR DRIVE AND PISTON PUMP ARRANGEMENT - A linear drive, in particular for a piston pump, includes a first electromagnetic drive device, a second electromagnetic drive device, and a drive piston configured to be moved in an axial direction by the drive devices. The first drive device and the second drive device are each in the form of a reluctance drive device. The reluctance drive devices each have a stator with a stator coil that engages around the drive piston in a circumferential direction. The reluctance drive devices each also have a coil core with a coil receptacle, open in a radial direction toward the drive piston, for the coil winding. A piston pump arrangement includes the linear drive. | 06-12-2014 |
20140169998 | SEALED COMPRESSOR - A sealed compressor of the present invention comprises an electric component ( | 06-19-2014 |
20140193279 | VALVE DEVICE OF COMPRESSOR, AND SEALED COMPRESSOR INCLUDING VALVE DEVICE - A valve device of a compressor of the present invention comprises a plate ( | 07-10-2014 |
20140212309 | MOTOR CAP FOR A COMPRESSOR - A motor cap has a plurality of holes in the top of the cap for the entry of refrigerant into the suction plenum. The holes are sized and located to create a tortuous path for a stream of refrigerant to enter the compression chamber. The refrigerant stream is broken into multiple streams and any liquid refrigerant is encouraged to flash to vapor. Any oil that is brought from the sump at startup by boiling liquid refrigerant is likewise encouraged to remain on the motor cap and drain back to the sump while the liquid refrigerant flashes to vapor. | 07-31-2014 |
20140212310 | SUCTION FILTER FOR A COMPRESSOR - A suction fitting for a compressor can include screens, filters, and direction control louvers to both filter out particulates and direct higher mass liquid refrigerant downward away from the inlet to the compression chamber. Alternatively, a mesh filter can be place over the opening(s) to the suction plenum to prevent debris and contaminants from entering the suction plenum. | 07-31-2014 |
20140212311 | COMPRESSOR - A compressor can have one or more of a suction fitting with integral louvers and a screen, a motor cap with a plurality of holes in the top surface of the motor cap to permit refrigerant to enter a suction plenum, a filter positioned over the plurality of holes in the motor cap, a filter for the cage bearing and a braze ring installed in one or more of the compressor fittings. | 07-31-2014 |
20140286803 | REFRIGERATION COMPRESSOR WITH FLEXIBLE DISCHARGE CONDUIT - A refrigeration compressor includes a housing having a wall, a suction gases inlet and a compressed gases outlet. A linear compressor is supported for operation within the housing. A hollow tubular body extends from the compressed gases outlet and is adapted for attachment to a refrigerant circuit. A compressed gases discharge conduit extends from the linear compressor, and to the hollow tubular body to form a seal at a point of direct contact therewith. | 09-25-2014 |
20140308140 | HERMETIC COMPRESSOR - A hermetic compressor includes a closed vessel for storing lubricating oil, an electric-driving element, and a compressing element driven by the electric-driving element. The compressing element includes a cylinder block forming a compression chamber, a piton that reciprocates inside the compression chamber, and an oiling device for supplying the lubricating oil to an outer circumference of the piston. A first oil groove is concavely formed on the outer circumference of the piston, and a second oil groove is concavely formed on a side opposite to the compression chamber relative to the first oil groove. The second oil groove has a spatial volume same or greater than that of the first oil groove. An expanded clearance portion is provided such that a clearance between the piston and the cylindrical hole portion broadens from a top dead point to a bottom dead point. | 10-16-2014 |
20140308141 | SEALED COMPRESSOR AND REFRIGERATOR INCLUDING SEALED COMPRESSOR - A sealed compressor ( | 10-16-2014 |
20140314593 | PUMP - A pump includes a drive assembly having a drive shaft rotatable about a drive axis, and an eccentric coupled to the drive shaft for rotation therewith. The eccentric includes a shaft portion defining an eccentric axis that is offset from the drive axis. The shaft portion includes a shaft end defining a first alignment feature. A piston is rotatably coupled to the shaft portion and defines a second alignment feature. A cylinder reciprocatingly receives the piston. Positioning the first alignment feature in a predetermined orientation with respect to the second alignment feature locates the piston in one of a top-dead-center position and a bottom-dead-center position with respect to the cylinder. | 10-23-2014 |
20140314594 | PUMP - A pump for use in low-profile applications comprises a barrel for holding fluid; and a piston that converts a rotational driving force into a longitudinal driving motion within the barrel. The pump provides space saving advantages by reducing the need for external equipment and mechanisms around the pump for providing actuation or moving the actuating mechanism. | 10-23-2014 |
20140341763 | SEALED COMPRESSOR AND REFRIGERATOR INCLUDING SEALED COMPRESSOR - A sealed compressor ( | 11-20-2014 |
20150030478 | SEALED COMPRESSOR AND REFRIGERATION UNIT COMPRISING SEALED COMPRESSOR - A sealed compressor comprises a sealed container ( | 01-29-2015 |
20150071798 | AIR COMPRESSOR HAVING COMPACT STRUCTURE - An air compressor device includes a cylinder housing and a supporting plate, a piston engaged in the cylinder housing and having a piston rod, a gear and an eccentric member attached to the supporting plate with a shaft, the eccentric member includes an eccentric pin coupled to the piston rod, and a motor includes a protrusion engaged into an orifice of the supporting plate and includes a spindle extended out of the protrusion and extended through the orifice of the supporting plate, and includes a pinion attached to the spindle and engaged with the gear, and the pinion includes an outer diameter (D) greater than an outer diameter (d) of the protrusion of the motor. | 03-12-2015 |
20150078935 | AIR COMPRESSOR - In an air compressor, inner blades of a cooling fan are formed into a centrifugal type, and outer blades are formed into an axial flow type. Exterior air is sucked through a ventilating window by the outer blades, and an air stream (CA1) is generated. A part of the generated air stream flows towards a stator coil, like an air stream (CA2). By a negative pressure generated by the inner blades, the air in the vicinity of the stator coil is sucked to the inner blades, like an air stream (CA3). The sucked air flows out from a motor-side opening towards a non-motor-side opening by a negative pressure generated by the outer blades, is sucked to the outer blades like an air stream (CA4) and flows out together with the air stream (CA1). | 03-19-2015 |
20150125321 | PERMANENT MAGNET LINEAR PISTON PUMP - A permanent magnet linear piston pump comprises a piston body, a cylinder body, a permanent magnet assembly and an electromagnetic coil. The piston body is arranged in a piston cavity by a liquid sealing movable fit mode. An inner magnetic body and an outer magnetic body are disposed on at least one side surface of the cylinder body. An electromagnetic coil is axially and distributively wound around a coil supporting member which is disposed at an outside surface of the cylinder body. The electromagnetic coil is disposed between the inner magnetic body and the outer magnetic body. By the above structure, the pump needs not subject the electromagnetic coil to a sealing treatment, thereby attaining a simple structure, more convenient manufacture, lower costs, a reliable operation and convenient maintenance. | 05-07-2015 |
20150125322 | ROTARY COMPRESSOR - A rotary compressor includes a motor, an eccentric shaft and a cylinder installed in a casing. The motor includes a rotor and a stator. The eccentric shaft rotates with the rotor and turns around in the cylinder. The cylinder divides the casing into a high pressure chamber and a low pressure chamber, and the high pressure chamber is disposed between the motor and cylinder, and the low pressure chamber is disposed at the bottom of the cylinder. An isolating element is installed between the cylinder and the casing for isolating the high pressure chamber and the low pressure chamber. The isolating element includes at least one reflowing hole penetrated through the isolating element and interconnected between the high pressure chamber and the low pressure chamber for isolating high and low pressures effectively. | 05-07-2015 |
20150147207 | LINEAR PIEZOELECTRIC COMPRESSOR - A linear compressor employing a piezoelectric actuator operating in resonance at a frequency substantially below its natural resonant frequency, which is usually of the order of 10 kHz. Low frequency resonance operation of the actuator, of the order of 100 Hz., is achieved by incorporating the actuator and its housing with the moving compression piston, such that the moving mass is substantially increased, and by reduction of the effective piezoelectric stiffness using hydraulic amplification of the actuator displacement. Both these procedures result in a reduction of the actuator resonant frequency. The hydraulic amplification is achieved by using a hydraulic chamber with different sized pistons, linking the actuator motion with motion of the actuator housing, to which the compressor piston is attached. The high efficiency achieved and the lack of moving parts or the need for lubricating oil makes the compressor ideal for use in high reliability and high purity applications. | 05-28-2015 |
20150300337 | COMPRESSOR - A compressor ( | 10-22-2015 |
20150300340 | CONTACT MEMBER, SLIDE MEMBER, COMPRESSOR COMPRISING CONTACT MEMBER OR SLIDE MEMBER, AND MANUFACTURING METHOD OF COMPRESSOR - A contact member or a slide member of the present invention comprises a surface treatment film ( | 10-22-2015 |
20150308422 | ELECTRIC-POWERED PUMP - A movable body that has a cylinder and a valve apparatus is accommodated inside an accommodating chamber of a pump body so as to cover a discharging orifice. A piston sucks a fluid into the movable body, and discharges the fluid from inside the movable body to the discharging orifice by being slid reciprocally through a piston sliding aperture of the cylinder. A relieving passage that communicates between a suction volume space of the accommodating chamber and the discharging orifice is formed between an inner surface of the accommodating chamber and the movable body by the movable body moving away from the discharging orifice in opposition to a force from a forcing body. | 10-29-2015 |
20150322931 | Hydraulic Pump Assembly for a Hydraulic Vehicle Brake System, Hydraulic Vehicle Brake System with such a Hydraulic Pump Assembly and Method for Manufacturing the Hydraulic Pump Assembly - A hydraulic pump assembly for a hydraulic vehicle brake system includes a drive motor, preferably an electric motor, and a piston pump. The hydraulic pump assembly has a worm gear, preferably a ball screw unit, which converts a rotating output movement of the drive motor into a translatory drive movement of the piston pump or the pump piston. A method is provided for manufacturing the hydraulic pump assembly. A vehicle brake system includes the hydraulic pump assembly. | 11-12-2015 |
20150322935 | ELECTRICAL INFLATOR - An electrical inflator has a cylindrical shell, an electrical aeration pump, an illumination assembly, a cell base and a switch assembly. The cylindrical shell has a tube, a front cover and a rear cover. The electrical aeration pump is mounted in the tube near the front cover and has a gas outlet located in the tube. The illumination assembly is mounted in the tube towards the front cover. The cell base is mounted in the tube behind the electrical aeration pump. The cell base has at least one cell. The switch assembly is mounted in the tube and electrically connects to the cell base, the electrical aeration pump and the illumination assembly. | 11-12-2015 |
20150322936 | HIGH PRESSURE BIDIRECTIONAL MINIATURE ELECTRIC GAS PUMP - Provided is a multi-range field full-automatic pressure and electric signal calibrating instrument, comprising: control components such as a shell, a power switch, multiple-interfaces, a display, a keyboard, and a gas pressure generating unit, a power supply unit, a pressure detecting unit, a gas pressure control unit and an electric signal detecting unit; the pressure output end of the pressure control unit is in parallel connection with pressure joints which are used for installing multiple pressure standard meters and detected meters with different ranges; the pressure control unit is in signal connection with the pressure standard meters; the electric signal detecting unit is in signal connection with the pressure control unit and the detected meters; the power supply unit can supply power by batteries. The calibrating instrument does not need to be externally connected with a gas cylinder and an alternating current power supply and can automatically generate a gas pressure and generate an accurate standard pressure; the design of the multi-range pressure standard meter can be suitable for various detected meters; the double detection and calibration for pressure and electric signals can be implemented; the weight and volume of the instrument are small; and the multi-range field full-automatic pressure and electric signal calibrating instrument is convenient to carry in the field and can carry out automatic calibration on various field pressure instruments. | 11-12-2015 |
20150330375 | CONTROL DEVICE FOR VEHICLE DRIVE DEVICE - A control device of a vehicle drive device including an electromagnetic valve oil pump sucking and discharging hydraulic oil through ON/OFF operations of an electromagnetic valve, a drive frequency controller for controlling a drive frequency at which the electromagnetic valve is to be turned on/off, a temperature sensor for detecting an oil temperature of the hydraulic oil, and a hydraulic circuit supplied with the hydraulic oil discharged from the electromagnetic valve oil pump, the control device of a vehicle drive device further including a surge absorption circuit absorbing a counter electromotive force generated in the electromagnetic valve oil pump, the drive frequency of operation of the electromagnetic valve oil pump being set lower when the oil temperature is low than when the oil temperature is high. | 11-19-2015 |
20150333582 | COMPRESSOR, HEAT PUMP DEVICE, AIR CONDITIONER, AND FREEZING MACHINE - A compressor includes: a motor that includes a rotor including opposed magnets; a compression unit that compresses a refrigerant; and a crankshaft that is connected to the motor and the compression unit and is configured to transmit rotational driving of the motor to the compression unit, wherein the magnets are arranged such that the difference in magnetic force between the opposed magnets eliminates a force that deflects the crankshaft when the motor is rotationally driven. | 11-19-2015 |
20150337825 | PORTABLE ELECTRIC INFLATOR - A portable electric inflator includes an electric air compressor, a pressure gauge, and a box for accommodating the electric air compressor and the pressure gauge. The box defines therein a generally L-shaped space for accommodating a cooling fan, a motor, a main frame with a transmission mechanism, a cylinder with a piston body, and an air storage tank of the electric air compressor. The motor defines two openings at its surrounding wall and multiple downstream through holes at its bottom wall. The main frame is provided with a peripheral wall and beveled radial braces and defines two through holes to facilitate the airflow passing through the main frame. The cooling fan can draw outside air to enter the box and smoothly flow along the generally L-shaped space to quickly dissipate the heat generated by the electric air compressor, whereby the performance and safety of the inflator can be increased. | 11-26-2015 |
20150338143 | ELECTRIC COMPRESSOR - A motor unit, which drives a compressor unit, includes a stator, which generates a rotating magnetic field, and a rotor, which is rotated about a rotational axis by the rotating magnetic field at an inner side of the stator. A drive circuit unit is placed at the inner side of the stator such that a position of the drive circuit unit in a direction of the rotational axis overlaps with the stator. | 11-26-2015 |
20150354552 | HERMETIC COMPRESSOR AND REFRIGERATOR - A hermetic compressor ( | 12-10-2015 |
20150369235 | AIR SUPPLY SYSTEM WITH ELECTRONIC CONVERTER - An air supply system having a compressor driven by a motor for producing compressed air, an air drier system for extracting moisture from the compressed air produced, an electronic converter for demand-dependent control of the compressor and analog and/or digital sensors for producing electrical signals, the electrical signals being useful for controlling the electronic converter and for monitoring and controlling the compressor. The electrical signals produced by the sensors are converted in the electronic converter to bus signals that can be provided for evaluation at a bus interface. | 12-24-2015 |
20150377230 | AIR COMPRESSOR - A portable air compressor includes a box and a compressor unit accommodated in the box. The compressor unit includes a main frame, a cylinder fitted with a piston body, a motor, and a transmission mechanism. The motor drives the transmission mechanism to have the piston body conduct reciprocating motion in the cylinder to produce compressed air, which is transferred to an air storage container. The cylinder and the main frame are integrally formed of plastic. The cylinder defines an exit hole communicating with an inner space thereof. A metal seat is integrally formed at the cylinder. The central hole of the metal seat communicates with the exit hole of the cylinder. A plug is urged by a compression spring to seal the central hole of the metal seat. The metal seat can endure high temperature within the cylinder to ensure air-tightness between the plug and the metal seat. | 12-31-2015 |
20160003226 | ELECTRIC PUMP APPARATUS - An electric pump apparatus includes a bracket, a pump and a motor. The pump includes a pump flange at a front side thereof. The pump flange is attached to the bracket. The motor includes a motor flange at a front side thereof, and the motor flange is attached to the bracket. The bracket ensures a gap between the pump and a machine base to allow for disposition of tubes in the gap. The bracket also ensures a gap between the motor and the machine base to allow for disposition of tubes in the gap. The pump and the tubes overlap and the motor and the tubes overlap, as viewed in plan, such that the electric pump apparatus and the tubes occupy a small floor area. | 01-07-2016 |
20160017871 | Mounting Arrangement for an Oil Pump in a Refrigeration Compressor - The refrigeration compressor includes a cylinder block carrying a crankshaft and a stator of an electric motor, whose rotor is mounted to the crankshaft. An oil pump including: a tubular sleeve affixed to the crankshaft or to the rotor with a pump body internal to the tubular sleeve and connected to the cylinder block. A fixation rod is articulated to the cylinder block or stator and has a lower portion angularly and freely displaced orthogonally to the rotational axis and around which the lower end portion of the pump body is axially retained and slidably mounted, orthogonally and coplanar to the rotation axis of the rotor. | 01-21-2016 |
20160017872 | LINEAR COMPRESSOR AND A LINEAR MOTOR FOR A LINEAR COMPRESSOR - An linear compressor and a linear motor for a linear compressor is provided. The linear compressor may include a shell, in which a suction inlet may be provided, a cylinder disposed in the shell to define a compression space for a refrigerant, a frame coupled to an outer side of the cylinder, a piston reciprocated in an axial direction within the cylinder, a stator cover coupled to the frame, and a linear motor supported by the frame and the stator cover to provide power to the piston. The stator cover may include a body, and at least one frame coupling portion coupled to the frame. The at least one frame coupling portion may extend from the body toward the frame. | 01-21-2016 |
20160017874 | SLIDE MEMBER, REFRIGERANT COMPRESSOR INCORPORATING SLIDE MEMBER, REFRIGERATOR AND AIR CONDITIONER - A slide member of the present invention is used in a slide unit which is included in a refrigerant compressor for compressing a refrigerant and provided inside a sealed container which reserves lubricating oil therein. The slide member is provided with an oxide coating film on a surface of a base material. The oxide coating film is configured such that (1) when the base material comprises an iron based material, the oxide coating film has a three-layer structure including a first layer comprising Fe | 01-21-2016 |
20160047368 | SEALED COMPRESSOR AND REFRIGERATION DEVICE - In a sealed compressor ( | 02-18-2016 |
20160053752 | LINEAR COMPRESSOR - Provided is a linear compressor. The linear compressor includes a cylinder defining a compression space for a refrigerant, a piston reciprocated in an axis direction within the cylinder, and a linear motor providing power to the piston. The linear motor includes an inner stator disposed outside the cylinder, the inner stator including a center core and a side core disposed on at least one side of the center core, an outer stator disposed to be spaced outward from the inner stator in a radius direction, a permanent magnet movably disposed in an air gap defined between the inner stator and the outer stator, and a deformation prevention device for preventing the inner stator from being deformed. | 02-25-2016 |
20160076526 | Ultra High Pressure Pump With An Alternating Rotation To Linear Displacement Drive Mechanism - A high pressure pump including a linear actuator comprising a servo motor to axially rotate a hollow rotor shaft in alternating directions, the servo motor having a stator positioned co-axially around the hollow rotor shaft with an interior of the rotor shaft being co-axially coupled to a drive member to convert axial rotation into reciprocal displacement, the drive member being constrained against linear movement and supporting a shaft. At least one piston is coupled to the shaft and the piston is arranged within a cylinder to define a pumping chamber, whereby alternating rotation of the rotor shaft causes reciprocal linear displacement of the piston to pressurize fluid in the pumping chamber. A drive mechanism includes a controller coupled to a servomotor and an encoder to measure movement of the hollow rotor or output shaft and send a feedback signal proportional to the movement to the controller. | 03-17-2016 |
20160115948 | LINEAR COMPRESSOR AND A SPRING ASSEMBLY - A linear compressor is provided. The linear compressor includes a spring assembly. An inner back iron assembly is fixed to the spring assembly at a middle portion of the spring assembly. A driving coil is operable to move the inner back iron assembly in order to reciprocate a piston within a chamber of a cylinder assembly. A related spring assembly is also provided. | 04-28-2016 |
20160141953 | ON-VEHICLE ELECTRONIC DEVICE AND MOTOR-DRIVEN COMPRESSOR - An inverter includes a bus bar as a wiring and a ferrite core that covers the bus bar to absorb electromagnetic noise from the bus bar. The bus bar and ferrite core are integrated by mold forming using a resin material in a state of exposing a part of the ferrite core. | 05-19-2016 |
20160172912 | PERMANENT MAGNET-EMBEDDED ELECTRIC MOTOR, COMPRESSOR, AND REFRIGERATING AND AIR-CONDITIONING DEVICE | 06-16-2016 |
20160186731 | Split Shell Shaft Coupling for Submersible Pump Assemblies - An electrical submersible pump assembly has a number modules including a pump, a motor and a pressure equalizer. Each module has a rotatable shaft with a splined end that joins a splined end of another module, and those splined ends may differ in dimensions. A coupling that joins the shafts has a first shell has a splined bore that mates with the splined end of the first shaft. A second shell has a splined bore that mates with the splined end of the second shaft. An adopter has a first splined end in mating engagement with the splined bore of the first shell and a second splined end in mating engagement with the splined bore of the second shell. Fasteners secure the adapter to the shells. An annular seal isolates fluid communication between the first shell bore and the second shell bore. | 06-30-2016 |
20160186732 | ENERGY-STORING-TYPE HIGH-PRESSURE ELECTRIC FUEL PUMP, FUEL-SUPPLYING APPARATUS, AND APPLICATION METHOD THEREFOR - An energy-storing-type high-pressure electric fuel pump includes an electromagnetic driving apparatus and a plunger sleeve cylinder component. The plunger sleeve cylinder component includes a high-pressure volume, a plunger sleeve having a plunger hole, and a plunger capable of sliding within the plunger hole. A clearance volume of the plunger in the plunger hole is a high-pressure fuel chamber. A clearance volume between the electromagnetic driving apparatus and the plunger sleeve cylinder component forms a low-pressure fuel chamber. Under the action of the electromagnetic driving apparatus, the plunger sleeve cylinder component sucks a fuel in the low-pressure fuel chamber into the high-pressure fuel chamber and pressure-feeds the fuel into the high-pressure volume. The electromagnetic driving apparatus includes an energy storage apparatus, a movable part, and a still part. | 06-30-2016 |