Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 8147216 | Motor-pump unit The invention relates to a motor-pump unit having an electric motor and a pump, the pump having a suction inlet and a pressure outlet, and the electric motor comprising a motor housing which is enclosed by a cooling housing, whereby a cavity is formed, it being poss... | 04/03/2012 |
| 7425119 | Electrical charge air compressor provided with an integrated air cooling system The invention relates to a device to compress combustion air, in particular a device to compress combustion air for a combustion engine of a motor vehicle, with a housing (12), with at least one compressor impeller (30) arranged in a compression area (... | 09/16/2008 |
| 7353796 | Rotary machine The rotary machine can be used as a rotary internal combustion engine and as a pneumatic or hydraulic pump. The rotary machine comprises a housing in the form of two intersecting cylinder parts of different diameters having parallel axes. A rotor is received in the ... | 04/08/2008 |
| 7318711 | Oil supply structure of scroll compressor Disclosed herein is an oil supply structure of a scroll compressor capable of preventing a sludge clog phenomenon in a fine hole of an oil supply screw. The oil supply structure comprises a backpressure space defined between an orbiting scroll and a main frame of th... | 01/15/2008 |
| 7311501 | Scroll compressor with bifurcated flow pattern A scroll compressor includes various features that promote a bifurcated flow pattern of gas through a compressor shell to reduce oil entrainment. After entering the shell, some gas travels upward, which reduces the volume of gas traveling downward toward an oil sump... | 12/25/2007 |
| 7299873 | Method for pumping fluids The production rate, useful life and operating efficiency of electric submergible pumping systems (ESP) is improved by operating the system so that the motor (220, 320) is cooled by two passes of production. Production fluids remove waste heat from the motor ... | 11/27/2007 |
| 7300257 | Prevention of unpowered reverse rotation in compressors The shutdown of a compressor (10) installed in a refrigerant circuit (2) in air conditioning or refrigeration system is controlled so as to prevent unpowered reverse rotation of the compressor. Prior to terminating electric power to the compressor driv... | 11/27/2007 |
| 7284969 | Washer pump and filter used for washer pump A washer pump includes a case partitioned into a motor chamber, which accommodates an armature rotated when it is electrically energized, and partitioned into a pump chamber, which accommodates an impeller rotated being coupled to an armature shaft of the armature, ... | 10/23/2007 |
| 7281910 | Motor driven compressor A motor driven compressor having a motor for driving a compression mechanism includes a connecting portion for connecting between an external terminal for supplying electricity to the motor and a wire end portion of a stator of the motor. The connecting portion is l... | 10/16/2007 |
| 7232518 | Filter device A filter device includes at least one filter unit (10), connectable to a hydraulic circuit (14), with at least one supply line (16), one discharge line (18), and at least one cooling unit (22). The cooling unit is connected to a se... | 06/19/2007 |
| 7229259 | Compressor motor-end bearing having oil leakage path A compressor includes a motor having a rotor for driving a shaft, to drive compressor pistons. A lubricant supply system supplies lubrication to the moving elements within the compressor and motor. A suction fluid to be compressed passes over the motor on its way to... | 06/12/2007 |
| 7185431 | Method of manufacturing a linear compressor A method of manufacturing a linear compressor includes measures to account for possible variations in manufacture of the spring connecting between a cylinder part and a piston part. In the method, the piston is located at a predetermined axial position in the bore o... | 03/06/2007 |
| 7182583 | Electro-hydraulic power unit with a rotary cam hydraulic power unit An electro-hydraulic power unit is disclosed that includes a housing filled with hydraulic fluid. A hydraulic power unit is disposed within the housing, the power unit having a mechanical power shaft. Additionally, an electric machine is disposed within the housing ... | 02/27/2007 |
| 7168926 | Axial flow pump and fluid circulating apparatus An axial flow pump comprising a inner wall disposed in contact with the inside of a stator having winding, a rotor disposed inside the inner wall and adapted to be rotated upon energization of the winding, an axial flow blade formed on an outer periphery of the roto... | 01/30/2007 |
| 7112045 | Electric compressor An electric compressor has a compressor housing, a compression mechanism, an electric motor, an accommodating portion and a motor drive circuit. The compressor housing has a circumferential wall and a central axis. The compression mechanism is arranged in the compre... | 09/26/2006 |
| 7097433 | Fuel transfer pump The fuel transfer pump is a combination suction and pressure pump in a manifold above the fuel storage tank. The fuel transfer pump is contained within a manifold. The pump is liquid cooled (more specifically, fuel cooled) and is located in a manifold above the fuel... | 08/29/2006 |
| 7082785 | Oil separator for vapor compression system compressor A transcritical vapor compression system includes a compressor assembly that includes an oil separator for separating oil from refrigerant. The oil separator is disposed between a motor and a compression chamber in a sub-critical portion of the vapor compression sys... | 08/01/2006 |
| 7080522 | Car air conditioner and car with its conditioner There is provided a car air conditioner with a high COP, low GWP and high reliability. A simple refrigerant R32 is filled in a refrigerant circuit 1 of the car air conditioner. This simple refrigerant R32 has a high COP and low GWP, but is easily polarized an... | 07/25/2006 |
| 7077633 | Electric compressor A horizontal-type electric motor driven compressor comprises a casing, a suction chamber formed in the casing, an electric motor arranged on a suction chamber side in the casing, a compressor section driven by the motor in the casing about a horizontal axis of rotat... | 07/18/2006 |
| 7070397 | Compressor suction gas feed assembly Suction gas feed assemblies to provide gas to a hermetic compressor are provided. The feed assemblies have capacity for reducing suction noise resulting from suction conduit vibration, valving operation, suction gas pulsing, or the like. The suction gas feed assembl... | 07/04/2006 |
| 7056103 | Method and apparatus for cooling turbomachinery components An apparatus and method for cooling components associated with turbomachinery by means of one or more venturis placed in the intake flow of air into the compressor with an air inlet upstream of the venturis and an air outlet integral to at least one venturi. The par... | 06/06/2006 |
| 7044717 | Lubrication of a hermetic carbon dioxide compressor A hermetic compressor which uses carbon dioxide as the working fluid. The compressor includes a motor and a compression mechanism operatively coupled by a drive shaft supported by a bearing. The drive shaft includes a radially extending bore in fluid communication w... | 05/16/2006 |
| 7025577 | Enclosed-configuration electrically powered compressor having electric motor with stator coil thereof cooled by flow of refrigerant prior to compression of the refrigerant An enclosed-configuration electrically powered compressor has an electric motor with a segment-type stator coil that is directly cooled by a flow of refrigerant from an intake aperture in the casing, directed onto one or both of the coil end portions of the stator c... | 04/11/2006 |
| 7018185 | Liquid recovery method and system for compression mechanism Lubricating liquid fed from a reservoir to a compression mechanism is collected by a circumferential wall that surrounds the drive shaft of the compression mechanism and rotates synchronously with it immediately after liquid is discharged into the space inside the h... | 03/28/2006 |
| 7001156 | Structure of an air inflation device An improved structure of an air inflation device is disclosed. External air is drawn to the motor and cylinder to provide rapid cooling so that the efficiency of the motor is maintained. In the present invention, a plurality of air filters is used to filter air. The... | 02/21/2006 |
| 6997687 | Electric compressor In an electric compressor, in which an electric motor and a compressor driven thereby are integrated, in order to prevent a reduction in the durability of the electric motor and the like due to heat conducted from heat radiating bodies such as drive circuits, a flui... | 02/14/2006 |
| 6974115 | Electro-hydrostatic actuator An electro-hydrostatic actuator having a sealed housing filled with a dielectric fluid. A motor driven pump and electronics for controlling the pump are all immersed in the fluid. The pump is arranged to deliver fluid from the housing to a hydraulic cylinder to cont... | 12/13/2005 |
| 6951241 | Method for cooling a motor in a blower assembly for a furnance A method of cooling the bearings of a motor in a motor housing for a furnace assembly is disclosed comprising an aperture in the motor housing whereby air is brought into the motor housing and drawn around the motor via an impeller into the impeller housing thereby ... | 10/04/2005 |
| 6929455 | Horizontal two stage rotary compressor A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are ro... | 08/16/2005 |
| 6925832 | High-low pressure dome type compressor Formed in a scroll type compression mechanism is a connection passageway with a discharge opening through which refrigerant compressed by the compression mechanism flows out into a clearance space defined between the compression mechanism and a drive motor. A muffle... | 08/09/2005 |
| 6910483 | Double-ended blower and volutes therefor A double-ended variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the double-ended blower can ... | 06/28/2005 |
| 6899516 | Transverse type blowers A blower includes a base having a transverse passage for receiving a motor therein and a fan device driven by the motor extends from a hole in an end of the base. A casing including an outlet is connected to the base and mounted to the fan device. An anti-back devic... | 05/31/2005 |
| 6871512 | Motor-driven compressor A motor-driven compressor for compressing a refrigerant in an air conditioning system includes an electric motor, a swash plate-type compression unit driven by the electric motor, and a cooling channel for returning the refrigerant used by the air conditioning syste... | 03/29/2005 |
| 6736607 | Low-pressure gas circuit for a compressor Compressor, comprising a sealed outer casing, inside which is arranged a gas compression stage driven by a motor arranged inside the outer casing. The lower part of the inner casing containing the motor is sealingly closed by a bottom, and at least one vertical chim... | 05/18/2004 |
| 6729858 | Thrust bearing cooling unit for a turbo compressor A system for cooling a turbo compressor includes two compressing parts on opposite ends of a rotational shaft driven by a motor. Fluid from a fluid chamber within the casing of the device is supplied to a bearing chamber when the temperature of the bearing chamber i... | 05/04/2004 |
| 6716003 | Structure for an air pump An air pump is provided with a motor body having an air slot to allow air to flow from the air slot to air inlets positioned in a front sealing cap of the motor body. The air inlets are aligned with air holes in a closed housing. A shaft of the motor body extends in... | 04/06/2004 |
| 6695581 | Combination fan-flywheel-pulley assembly and method of forming A fan-flywheel-pulley assembly for use in conjunction with an electric motor. The assembly may include a pulley positioned about a central axis. The assembly may also include a flywheel coupled to the pulley and positioned about the central axis, the flyw... | 02/24/2004 |
| 6544009 | Compressor and electric motor A compressor and an electric motor in which their weights are successfully reduced by employing a light-metal conductor wire for a winding, by reducing constituent components of a stator and a rotor of the electric motor, by providing a notch or a hole, a... | 04/08/2003 |
| 6524082 | Electric compressor An electric compressor includes a compression mechanism, an electric motor and a housing. The compression mechanism draws, compresses and discharges refrigerant gas. The electric motor drives the compression mechanism. The housing accommodates the compres... | 02/25/2003 |
| 6514053 | Motor-driven pump with a plurality of impellers A motor-driven pump with a plurality of impellers, includes a pump housing provided on an electric motor, and an impeller unit provided in an inner space of the housing, the housing having two fluid inlet port regions on two sides near and away from the m... | 02/04/2003 |
