| Entries |
| Document | Title | Date |
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| 20080317614 | Electric compressor - An electric compressor is disclosed in which gas in a motor housing of a rotating electric machine is drawn into a compression chamber and then discharged by the rotating electric machine. The rotating electric machine includes a stator, teeth, coils of different phases, and phase-to-phase insulation sheets provided between coils of different phases. An inlet port is provided in the motor housing. The inlet port draws gas from the outside of the motor housing. An inflow direction of the gas flowing through the inlet port intersects a coil end of one of the coils. A part of the phase-to-phase insulation sheet faces the inlet port and covers an intersection surface of the coil end that intersects the inflow direction. | 12-25-2008 |
| 20090010775 | DC BRUSHLESS MOTOR PUMP - A DC brushless motor pump comprises a stator unit consisting of a plurality of silicon steel laminations and a coil, a rotor, an excitation circuit connected to the stator unit, a signal controller supplying power to the excitation circuit, and a magnetic induction module connected to the signal controller to control the pump running. Further, in the pump, a cylinder is provided between the stator unit and the rotor. An orientation component that protrudes in a radial direction is provided on an outer circumferential wall of the cylinder so that the magnetic induction module may be mounted onto the orientation component. Thus, the orientation component is used to fix the magnetic induction module for increasing the accuracy of detection. | 01-08-2009 |
| 20090142208 | MOTOR AND PUMP ASSEMBLY HAVING IMPROVED SEALING CHARACTERISTICS - The present invention comprehends a gerotor or gear pump driven by a permanent magnet motor which exhibits cogging torque, i.e., resistance to rotation when de-energized caused by interaction between permanent magnets in the rotor and teeth on the stator. Such interaction causes the rotor to come to rest in one of many defined rotational positions and resist rotation when electrical power to the motor has been terminated. The permanent magnet motor is coupled, preferably directly, to a gerotor pump having meshing rotors or a gear pump having meshing gears. When the motor is de-energized, the pump rotors or gears come to rest and their rotation is resisted by the cogging torque of the motor. The invention finds particular application in automotive transmissions and systems with parallel pumps. | 06-04-2009 |
| 20090232679 | COMPRESSOR - A compressor includes a closed container and a compression element welded together at least three, preferably six, welding points. A suction tube for sucking refrigerant gas is attached to the closed container. A first direction and a second direction that are associated with a natural vibration mode of the suction tube do not coincide with a direction in which any two of the welding points are aligned. Accordingly, vibration of the suction tube can be reduced by arrangement of the welding points even if vibration of a motor is transmitted to the compression element. | 09-17-2009 |
| 20090291003 | CENTERING COUPLING FOR ELECTRICAL SUBMERSIBLE PUMP SPLINED SHAFTS - An electrical submersible well pump assembly having a pump, a pump motor, and a seal section. The motor drives the pump via shafts rotatingly coupled with a coupling assembly. The coupling assembly maintains the shaft ends in coaxial alignment with an alignment device. The alignment device is profiled on opposite ends for mating engagement with the centering profiles on the shaft ends. | 11-26-2009 |
| 20090324433 | ROTATING-SLIDE VACUUM PUMP OR COMPRESSOR OF BLOCK DESIGN HAVING A DISC-ROTOR SYNCHRONOUS MOTOR WHICH IS MOUNTED ON FLYING BEARINGS - In a rotating-slide vacuum pump or compressor having a rotor ( | 12-31-2009 |
| 20100021320 | ELECTRIC COMPRESSOR - The present invention relates to an electric compressor integrally including a compression mechanism and an electric motor, and an object thereof is to prevent the housing from being elongated in the axial direction and improve the sealability and the mountability of the compression mechanism. According to the present invention, a hermetic terminal ( | 01-28-2010 |
| 20100021321 | COMPRESSOR - A compressor includes a compression mechanism, a motor coupled to the compression mechanism via a driving shaft, and a casing to accommodate the compression mechanism and the motor. The motor includes a stator, and a rotor disposed inside the stator and coupled to the driving shaft. The stator is spot-joined to the casing via a plurality of stator spot-joined portions at different positions along a circumferential direction about the driving shaft. Preferably, the stator spot-joined portions are disposed at different axial positions. Also, the stator spot-joined portions are preferably disposed at different circumferential positions from positions of compression mechanism-side spot-joined portions. When an accumulator is connected to the casing via a connection pipe, a straight line between any two of the plurality of stator spot-joined portions preferably crosses a vibration direction of a natural vibration mode of the accumulator. | 01-28-2010 |
| 20100074773 | ELECTRIC COMPRESSOR - A lubricating oil reservoir provided at the bottom of a housing is placed under the compression mechanism or electric motor in the vicinity of the mounting bracket provided on the lower outside of a middle case. The lubricating oil reservoir can be provided efficiently using dead space formed under the compression mechanism in the housing, and the rigidity of the mounting bracket can secure the strength of the lubricating oil reservoir. | 03-25-2010 |
| 20100074774 | COMPRESSOR - A compressor includes a closed container, a compression element placed within the closed container, and a motor placed within the closed container to drive the compression element via a shaft. An integral structural part is formed by integrally assembling a compression element with a rotor via a shaft. The natural frequency of the integral structural part is larger than five times the maximum number of rotations of the compressor during its operation. A coil of a stator is provided in concentrated winding. A cylindrical-shaped rotor core of the rotor has a small-diameter portion and a large-diameter portion provided inside the rotor core. The shaft is fixed to the small-diameter portion of the rotor core. A bearing of the compression element is arranged to support the shaft and is inserted into the large-diameter portion of the rotor core, with the shaft being cantilevered by the bearing. | 03-25-2010 |
| 20100098563 | Surface Motor Direct-Drive Sucker-Rod Screw Pump Device - A surface motor direct-drive sucker-rod screw pump device is driven by a vertical three-phase permanent magnet brush-less DC motor, and comprises a motor controller ( | 04-22-2010 |
| 20100129238 | INVERTER-INTEGRATED ELECTRIC COMPRESSOR AND COIL COMPONENT FOR INVERTER THEREOF - An inverter-integrated electric compressor capable of achieving improved ease of installation of a coil component constituting an inverter and increased strength and reduced cost of an insulating member, as well as a coil component for the inverter, are provided. In an inverter-integrated electric compressor, an inverter-accommodating section is disposed on the periphery of a housing, and an inverter is accommodated and installed in the inverter-accommodating section to convert DC power into three-phase AC power and supply the power to an electric motor. The inverter-integrated electric compressor includes a resin spacer member having a molded shape surrounding at least the bottom of a coil component constituting the inverter to ensure an insulation distance between the coil component and the inverter-accommodating section when installed in the inverter-accommodating section, and the coil component is fixed to and installed in the inverter-accommodating section with the resin spacer member disposed therebetween. | 05-27-2010 |
| 20100166577 | HERMETIC COMPRESSOR - A hermetic compressor is disposed with an annular motor stator, a motor rotor, a casing and plural spot joining portions. The motor rotor is disposed such that it may freely rotate in a space inside the motor stator. The casing includes a cylindrical portion. The cylindrical portion houses the motor stator and the motor rotor. The plural spot joining portions fix the motor stator to the cylindrical portion by spot joining in a state where a clearance is secured between the motor stator and the cylindrical portion. | 07-01-2010 |
| 20100215524 | SEALED TYPE ROTARY COMPRESSOR - An object of the present invention is to promote oil separation in a sealed container, thereby decreasing the amount of oil discharged to the outside of a compressor. The compressor comprises discharge hole provided at positions facing the end surface of a rotor and through which a compressed refrigerant from first and second rotary compression elements is discharged into the sealed container; and a refrigerant flow path which is extended from a space surrounded with a coil end of a stator projecting from the end surface of the rotor to a rotary compression mechanism side to a space of an air gap between the rotor and the stator, to guide the compressed refrigerant discharged through the discharge hole to an electromotive element opposite to the rotary compression mechanism side, and the outlet of this refrigerant flow path opposite to the rotary compression mechanism side faces the inner wall surface of the sealed container. | 08-26-2010 |
| 20100215525 | SEALED TYPE ROTARY COMPRESSOR - An object of the present invention is to promote oil separation in a sealed container, thereby decreasing the amount of oil discharged to the outside of a compressor. The compressor comprises discharge hole provided at position facing the end surface of a rotor and through which a compressed refrigerant from first and second rotary compression elements is discharged into the sealed container; and a refrigerant flow path which is extended from a space surrounded with a coil end of a stator projecting from the end surface of the rotor to a rotary compression mechanism side to a space of an air gap between the rotor and the stator, to guide the compressed refrigerant discharged through the discharge hole to an electromotive element opposite to the rotary compression mechanism side. The outlet of this refrigerant flow path opposite to the rotary compression mechanism side faces the inner wall surface of the sealed container, and the volume of a space between the inner wall surface of the sealed container and the electromotive element is 1.5 times or more and 15 times or less that of a space between the rotary compression element and the electromotive element. | 08-26-2010 |
| 20100260625 | CONCRETE PUMP - A Concrete Pump is a mechanical device compromising of round funnel shape hoper, Pump outlet, rotating pressure and wear plates, to which are attached rotating pump cylinders, opposite rotating wear plate and press against it is stationary wear plate to which is attached hoper's outlet and pump's outlet flange. Pump functioning as follow; Concrete from hoper passing through stationary and rotating wear plates into one pump cylinder, in same time concrete from other cylinder (previously field with concrete) is been pushed through rotating wear plate and through stationary wear plate into pump's outlet. When pistons reach the end of cylinders the rotating wear plates and concrete cylinders rotate by 180 degrees and process is repeated again. Pump is designated so as to entire volume of concrete or simular pumping substance is pumped out of the hoper. | 10-14-2010 |
| 20100290933 | Electric pump - An electric pump includes a pump; a motor having a motor shaft, the motor shaft being connected to the pump to drive the pump; a support member which is arranged between the pump and a front end portion of the motor, the front end portion of the motor being a motor shaft side, the support member supporting the pump and the motor when the motor shaft penetrates the pump; a motor cover which covers the motor, the motor cover having a closed-end cylindrical shape, and an opened end side of the motor cover being fixed to the support member; and an elastic member which is in a state of being compressed positioned between a rear end portion of the motor and a bottom portion of the motor cover. The motor is supported by the support member as being urged thereto by the elastic member. | 11-18-2010 |
| 20110223046 | Positive Displacement Rotary System - A positive displacement rotary system may include a main rotor and a slotted rotor. The main rotor can include an interior cavity and a fixed vane (or blade) that is attached to the peripheral and side walls of that cavity. The slotted rotor is positioned within the main rotor interior and includes a slot for the main rotor blade. The main and slotted rotors rotate about parallel axes that are offset from one another. As the rotors turn, separate chambers are formed between the blade and an inter-rotor seal, with the inter-rotor seal located at or near a rolling contact between the outer surface of the slotted rotor and an inner perimeter wall of the main rotor cavity. The separate chambers contract and expand as the rotors rotate. | 09-15-2011 |
| 20110256003 | DRY VACUUM PUMP - Between an exhaust chamber and a lubrication chamber, a second seal that seals between a cylinder that partitions the exhaust chamber and a first shaft and a first seal that seals between a side cover that partitions the lubrication chamber and the first shaft are provided. A gas introduction space to which a seal gas is supplied is provided between the second seal | 10-20-2011 |
| 20110300008 | COMPACT CABLE SUSPENDED PUMPING SYSTEM FOR LUBRICATOR DEPLOYMENT - A method of installing or retrieving a pumping system into or from a live wellbore includes connecting a lubricator to a production tree of the live wellbore and raising or lowering one or more downhole components of the pumping system from or into the wellbore using the lubricator. | 12-08-2011 |
| 20120156067 | COMPRESSOR - A compressor includes a closed container and a compression element that are welded together at least three welding points. The closed container has a suction port with a suction tube fitted to the suction port of the closed container with the suction tube being arranged and configured to suck a refrigerant gas, and the suction tube has a central axis that lies in a plane which is orthogonal to the central axis of the closed container and that passes through the suction port. The welding points are arranged such that straight lines connecting all combinations of any two of the welding points are neither parallel to the central axis of the suction tube nor perpendicular to the central axis of the suction tube, to reduce vibrations of the suction tube that occur when vibrations of the motor are transmitted to the closed container. | 06-21-2012 |
| 20120171060 | COMPRESSOR - A compressor is provided that includes an accumulator formed in an internal space of a shell to reduce a size of the compressor. An accumulator space may be formed using the shell of the compressor, thereby simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. A discharge passage may be formed in a rotating body to enhance a cooling effect of a drive motor, and an oil separating member may be installed in the discharge passage to prevent oil from being excessively leaked out. A center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration noise of the compressor caused by the accumulator. An area for installing a compressor including the accumulator may be minimized to enhance design flexibility of an outdoor device. | 07-05-2012 |
| 20120224986 | ROTARY VANE COMPRESSOR - A rotary vane compressor includes a cylinder chamber having an ellipsoidal inner wall shape, a rotor rotatably provided in the cylinder chamber, a vane held in the rotor so as to contact with an inner wall surface of the cylinder chamber along with a rotation of the rotor, a vane slot provided on the rotor and offset on a reverse rotational side of the rotor from a radial line passing over a rotational center of the rotor, and a controller for controlling a rotation of the rotor. The controller reversely rotates the rotor for a predetermined time upon activating the compressor. According to the compressor, chattering can be prevented by surely protruding the vane from the vane slot without providing extra parts. In addition, the vane can be produced with easy working processes at low cost. | 09-06-2012 |
| 20120269662 | MOUNTING ARRANGEMENT FOR AN ECCENTRIC SHAFT IN A REFRIGERATION COMPRESSOR - The compressor of the invention includes a block (B) defining a shaft hub having a first and a second end portion and housing an eccentric shaft having a median portion radially journalled in the shaft hub, and a free end portion carrying the rotor of an electric motor. The first and the second end portions of the shaft hub define radial bearings for the shaft and a support member is formed by a coupling portion, affixed to the free end portion of the shaft, and by a mounting portion, projecting axially and radially from the coupling portion, externally to the shaft hub and around the median portion of the shaft. The rotor is affixed to the mounting portion, concentrically to the eccentric shaft and surrounding the shaft hub. | 10-25-2012 |
| 20130052057 | VANE PUMP APPARATUS AND METHOD - The invention relates to a vane pump, comprising an electric drive unit having an electric motor and a motor shaft, a pump chamber, attached on the electric drive unit, a rotor having a plurality of blades, said rotor being arranged concentrically to the motor shaft within the pump chamber, wherein the motor shaft is engaged with the rotor by way of a tappet which is connected torsionally rigid with the motor shaft and the tappet comprises at least one tappet peg, which is engaged in a rotor recess that corresponds to the tappet peg, wherein the at least one rotor recess has an oval shape and the tappet peg is contoured in such a way that two first slightly curved contoured sections each form one contact area with one oblong planar section each of the rotor recess. | 02-28-2013 |
| 20130058808 | SYMMETRICAL VANE PUMP APPARATUS AND METHOD - The invention relates to a vane cell pump ( | 03-07-2013 |
| 20130064699 | HYDRAULIC TRANSPORT DEVICE AND ELECTROHYDRAULIC CONTROL MODULE - A hydraulic transport device for transporting a hydraulic medium. The device includes at least one externally toothed gear pump that is driven by an electric motor, and a control device attached to the pump. A passive rotational speed detection element is arranged in the pump and interacts with an active rotational speed detection element that is arranged in the control device to detect the rotational speed of the pump shaft. | 03-14-2013 |
| 20130089443 | Compressor - A power driven component inside a compressor is disposed with a stator and rotors. The stator has an iron core in a circular ring and a plurality of stator coils in concentrated winding manner. An interval vertically passing through is formed between adjacent stator coils. A cover body is formed on the stator and a shield member that is formed with an upper portion along each stator coil and bending curve portions at two sides of the upper portion. Each bending curve portion is extended toward the interval from the upper portion. A sealed cover portion is connected between the bending curve portions of the upper portion and correspondingly seals each interval to reduce noise of the compressor and oil circle rate. | 04-11-2013 |
| 20130202463 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a connector receiving portion provided on the outer surface of a housing. A wiring connection portion is provided in the connector receiving portion and supplies electricity from an external power source to a motor drive circuit. An insulating member provided inside the connector receiving portion insulates the wiring connection portion and the connector receiving portion from each other. An electrical wire is arranged between the inner surface of the connector receiving portion and the insulating member. The electric wire is used for a purpose other than supply of electricity to the motor drive circuit. A recess is formed in at least one of the inner surface of the connector receiving portion and the outer surface of the insulating member. The recess forms a wiring space, in which the electrical wire is arranged, between the connector receiving portion and the insulating member. | 08-08-2013 |
| 20140099218 | ROTARY COMPRESSOR - A rotary compressor | 04-10-2014 |
| 20140119962 | NEGATIVE PRESSURE SUPPLY UNIT - A negative pressure supply unit includes an electric vacuum pump including a motor part and a pump part placed in a case, and a cover member closing the case and is configured to supply negative pressure generated by the pump or in an engine intake pipe to a negative pressure chamber of a brake booster. The cover member includes: a suction passage for sucking a fluid from the negative pressure chamber into the pump part; a discharge passage for discharging the fluid ejected from the pump part to pump outside; and a branch passage branching from the suction passage to connect to an engine intake system. A first check valve provided in the discharge passage permits a fluid to flow only in a discharge direction. A second check valve provided in the branch passage permits a fluid to flow from the suction passage to the intake system. | 05-01-2014 |
| 20140161648 | Electric Machine - A three-phase, high voltage motor for use in a scroll compressor includes a stator core having an annular rim and a plurality of teeth extending radially inward from the rim. Aluminum windings are wrapped around teeth of the plurality of teeth of the stator core. The windings are spaced 120 electrical degrees from each other. The motor further includes a rotor body that is rotatably mounted inside the stator core and includes an external surface facing the stator core. | 06-12-2014 |
| 20140186201 | COMPRESSOR - A compressor is provided that may include a cylinder including an outer cylinder portion and an inner cylinder portion, and a vane portion connected between the outer cylinder portion and inner cylinder portion, which is fixed to a casing. A rolling piston may be slidably coupled to the vane portion to form an outer compression space and an inner compression space while making a turning movement between the outer cylinder portion and the inner cylinder portion. Through this, a weight of a rotating body may be reduced to obtain low power loss with respect to a same cooling power and a small bearing area, thereby reducing refrigerant leakage as well as easily changing a capacity of a cylinder in an expanded manner. Moreover, refrigerant may be discharged in opposite directions in each compression space, thereby reducing vibration noise of the compressor. In addition, a back pressure groove may be formed on an upper surface of a drive transmission portion of the rolling piston, thereby reducing a friction area between the rolling piston and the upper bearing, as well as reducing a friction loss between the rolling piston and the upper bearing due to oil filled into the back pressure groove. | 07-03-2014 |
| 20140186202 | COMPRESSOR - A compressor is provided that may include a cylinder including an outer cylinder portion, an inner cylinder portion, and a vane portion connected between the outer cylinder portion and the inner cylinder portion, which is fixed to a casing. A rolling piston may be slidably coupled to the vane portion to form an outer compression space and an inner compression space while making a turning movement between the outer cylinder portion and the inner cylinder portion. Through this, a weight of a rotating body may be reduced to obtain a low power loss with respect to the same cooling power and a small bearing area, thereby reducing refrigerant leakage as well as easily changing a capacity of a cylinder in an expanded manner. In addition, refrigerant may be discharged in opposite directions to each other in each compression space, thereby reducing vibration noise of the compressor. | 07-03-2014 |
| 20140219839 | POWER SUPPLY DEVICE OF ROTARY COMPRESSOR - Disclosed is a power supply device of a rotary compressor, and an electrical connector is installed at a casing of the rotary compressor for electrically connecting a motor installed inside the casing and an external power supply. A planar portion is disposed on a lateral side of the casing for installing the electrical connector, so that the electrical connector installed on a lateral side of the casing of the rotary compressor casing will not cause an increase of height of the rotary compressor to achieve a convenient installation. In addition, a protective cover is mounted onto the planar portion for covering the electrical connector, and the bottom of the protective cover is attached onto the planar portion. The electrical connector is protected by the protective cover without being exposed. | 08-07-2014 |
| 20150078933 | ROTARY COMPRESSOR AND REFRIGERATING CYCLE APPARATUS - According to one embodiment, a rotary compressor accommodating an electric motor portion and a compression mechanism portion in a sealed case, wherein the compression mechanism portion comprises a cylinder, a roller, and a vane. The vane is disposed by stacking two divided vanes in a height direction of the cylinder, which is an axis direction of the rotation axis, and where a height dimension of one divided vane is H, and a minute gap between a height dimension of the cylinder and a height dimension of the two stacked divided vanes is L, a proportion of the minute gap L to the vane height dimension H per one divided vane is | 03-19-2015 |
| 20150292504 | INDUCED HOLLOW SPIRAL DRIVING APPARATUS - An induced hollow screw driving apparatus comprises a shell ( | 10-15-2015 |
| 20160010646 | ROTARY VANE PUMP FOR GENERATING A VACUUM | 01-14-2016 |
| 20160017880 | FOUR ROLLER PERISTALTIC PUMP - A peristaltic pump for supplying liquid color to a process machine, comprising a stepper motor including an output shaft, a drive roller mounted on the output shaft, and a collection of planetary rollers positioned about and frictionally contacting driven by the output shaft, for sequentially compressing a flexible tube carrying the liquid color thereby dispensing liquid color from the tube. | 01-21-2016 |
| 20160017885 | ELECTRIC MOTOR VEHICLE VACUUM PUMP ARRANGEMENT - An electric vehicle vacuum pump assembly includes a combination, a separate acoustic barrier casing configured to encase the combination in each of a radially-spaced relationship and an axially-spaced relationship, and an annular gastight attenuation assembly radially arranged between the separate acoustic barrier casing on a first side and the combination on a second side. The combination comprises a pump unit and a drive motor comprising a rotor space, a stator space, a ventilation inlet, and a ventilation outlet. The rotor space comprises a motor rotor, and the stator space comprises a motor stator. The separate acoustic barrier casing comprises an intake connection and a discharge connection. The ventilation inlet and the ventilation outlet of the drive motor are configured to provide a forced ventilation past the annular gastight attenuation assembly and through at least one of the rotor space and the stator space. | 01-21-2016 |
| 20160032926 | ELECTRIC MOTOR-DRIVEN MOTOR-VEHICLE VACUUM PUMP, AND DRIVE SHAFT FOR A MOTOR-VEHICLE VACUUM PUMP - The invention relates to an electric motor-driven motor-vehicle vacuum pump ( | 02-04-2016 |
| 20160115957 | ROTARY COMPRESSION MECHANISM - A rotary compression mechanism includes: a shaft attached to a casing; a drive cylinder rotatably supported on the shaft; a rotor provided inside the drive cylinder; a transfer mechanism connecting the drive cylinder and the rotor in rotational motion at a constant speed; and a partition plate dividing a space defined between an inner periphery of the drive cylinder and an outer periphery of the rotor. The rotor has a second rotation center which is eccentric with respect to a first rotation center of the drive cylinder such that the outer periphery of the rotor is in contact with the inner periphery of the drive cylinder at a contact portion. The partition plate has a structure by which one end of the partition plate is let in and out in a vicinity of the inner periphery of the drive cylinder or in a vicinity of the outer periphery of the rotor. | 04-28-2016 |
| 20160153451 | Remote air supply | 06-02-2016 |
| 20160172913 | ELECTRIC MOTOR WITH EMBEDDED PERMANENT MAGNET, COMPRESSOR, AND REFRIGERATION/AIR-CONDITIONING DEVICE | 06-16-2016 |
| 20160190899 | ELECTRIC COMPRESSOR - An electric compressor includes a hollow cylindrical housing, a compression unit that compresses refrigerant, a motor that functions as a drive source of the compression unit, an inverter that controls the motor, and a refrigerant liquid accumulation unit that accumulates refrigerant liquid in the housing. The refrigerant liquid accumulation unit is disposed at a lower portion in the housing when the electric compressor is installed on the vehicle. According to the electric compressor, the refrigerant liquid is accumulated in the refrigerant liquid accumulation portion at a long-time stop, so that degradation of insulation property in the electric compressor (especially, of the motor and the inverter) can be prevented. | 06-30-2016 |
