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Document |
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7331773 |
Pump provided with exhaust valve device and hemodynamometer incorporating the same
A diaphragm is provided in a pump case so as to define a pump chamber communicated with an external member having an air chamber. A motor actuates the diaphragm to introduce air into the pump...
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7048518 |
Pump
The present invention comprises a pump ( 10, 110 ) having a casing ( 14, 114 ) with at least one first hermetically sealed chamber ( 19, 119 ) and at least one second chamber ( 17, 117 ) adjacent...
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6986647 |
Pump design for circulating supercritical carbon dioxide
In accordance with an embodiment of the present invention, a pump assembly for circulating a supercritical fluid is disclosed. The pump assembly comprises an impeller for pumping fluid between a...
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6884043 |
Fluid circulation path for motor pump
A fluid pump includes a pump head having an inlet for receiving fluid at a first pressure and an outlet for outputting fluid at a second pressure greater than the first pressure. Pressurized fluid...
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6835051 |
Motor with impeller/rotor combination
The invention relates to a pump for fluid media, more particularly to a cooling water pump for internal combustion engines with an electric motor configured as a disk armature for actuating the...
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6814549 |
Liner for fluid pump motor
An apparatus for protecting a fluid pump motor includes an electric motor for driving a pump head to pressurize a fluid. A liner is positioned in the motor air gap to prevent pressurized fluid from...
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6807821 |
Compressor with internal accumulator for use in split compressor
A rotary compressor having a housing with a motor and an internal accumulator located on the low pressure side and an oil sump located on the high pressure side. A sealing means positioned within...
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6769882 |
Pressure compensation for localized bearing heating in pumps driven by motors with fluid filled rotors
A motor/pump system which uses an enclosed rotor shell, and also interior hydrodynamic bearings which are lubricated by the liquid being pumped, is arranged to minimize localized heating at the...
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6746218 |
Compact electrohydraulic motor pump unit
A compact electrohydraulic motor pump unit comprising a housing which forms a reservoir for a pressurized fluid and contains an electric motor, and which comprises a first housing sealing section,...
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6733254 |
Air pumping/extracting duplex pump
An air pumping/extracting duplex pump for use in an inflatable device for selectively pumping air into/out of an air chamber of an inflatable device is constructed to include two connected housing,...
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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...
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6652250 |
Screw compressor having intermediate shaft bearing
A screw compressor 1 comprises a screw compressor body 2 having a pair of female and male screw rotors 21 meshed with each other encased in a rotor casing 22 , and a motor casing 4 having...
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6634870 |
Hermetic compressor having improved motor cooling
A hermetic refrigerant compressor including a compressor mechanism and a motor including a stator surrounded by a rotor attached to a crankshaft drivingly linked to the compressor mechanism. A...
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6589029 |
Self-contained motor driven hydraulic supply unit
A compact hydraulic supply unit has a housing forming a reservoir for a pressure fluid, and includes a housing bottom, a housing cover and a housing middle part therebetween in the form of a...
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6471493 |
Assembly structure for a turbo compressor
The present invention relates to a turbo compressor which is capable of minimizing deformation of construction parts which may occur in welding or after welding and simplifying the manufacture and...
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6467296 |
Air conditioning system for vehicle
An air conditioning apparatus for a vehicle that includes a multi-stage compressor, an internal heat exchanger, an external heat exchanger, a heat exchanger switching circuit, a cooling expansion...
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6293769 |
Canned pump with dry rotor compartment
An electric pump for a liquid has a rotor surrounded by a stator which is disposed in the flow path of the liquid, the rotor being disposed in a rotor compartment, which is sealed from the flow...
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6175173 |
Tube pump
A centrifugal pump has a housing with intake and discharge fittings at axially opposite ends. The electronic motor is supported on ribs within the pump housing and the motor casing is closed by the...
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6140725 |
Wet-running submersible motor for driving a centrifugal pump
The wet-running submersible motor comprises a shaft and an electrical rotor arranged thereon, both being arranged in the rotor space of the motor. The shaft is formed hollow either on its...
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6068455 |
Long life pump system
A system for pressurizing and pumping a fluid that may undergo substantial variations in temperature utilizes a motor with an enclosed rotor disposed adjacent and in driving relation to a...
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5997261 |
Pump motor having fluid cooling system
A brushless water pump motor includes a pump housing having an impeller chamber with an impeller disposed therein, and a motor assembly coupled at a first end thereof to the pump housing. The motor...
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5908286 |
Motor driven fuel pump and control system for internal combustion engines
An in-tank motor-pump unit includes a motor driven gear pump, a pressure transducer, and a control module as a single integrated package establishing fuel flow at a constant pressure by creating a...
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5713727 |
Multi-stage pump powered by integral canned motors
An in-line, multi-stage pump powered by integral canned electric motors. At least two pump units are connected in series in a pipeline. Each of said pump units includes a hollow housing having a...
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5591011 |
Multi-refrigerant compressor
The oil sump and suction plenum of a hermetic compressor are in continuous fluid communication through an oil equalization port assembly. Additionally, communication is established between the oil...
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5567133 |
Canned motor and pump employing such canned motor
A canned motor for use in a pump has an outer frame casing fitted over a stator, a pair of side frame members welded to respective open ends of the outer frame casing, a can fitted in the stator...
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5435701 |
Pump with medium tight shell and venting means
A pump (1) includes a pumphouse (2) having an inlet (3) for admitting a medium at a suction side of the pump and an outlet (4) for discharching the medium at a delivery side of the pump. A pumping...
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5320501 |
Electric motor driven hydraulic apparatus with an integrated pump
An electric motor driven inline hydraulic apparatus comprising a housing having end members closing said housing, an electric motor stator mounted in said housing, an electric motor rotor, a shaft...
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4850812 |
Integrated motor pump combination
An integrated motor pump unit for use as a hydraulic fluid pressure source at a remote location incorporates a pump rotor affixed in the center of a motor rotor. The motor/pump rotor assembly spins...
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4730989 |
Rotodynamic pump with spherical bearing
The invention relates to canned pumps which form a unit with a spherical electric motor (hereinafter referred to as "spherical pumps"). A rotating unit, made up of the rotor and the impeller is...
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4684329 |
Canned motor pump
A canned motor pump has a pump section and a canned motor section connected thereto. A portion of the liquid from the pump section is diverted past a front bearing of the pump shaft and then back...
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4616980 |
Canned motor pumps pressurized recirculation system
A canned motor pump pressurized recirculation system which comprises a main unit and a recirculation line. The main unit includes a main pump, an auxiliary pump and motor means positioned between...
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4234293 |
Axial balancing system for motor driven pumps
The pump described is of the canned motor type generally used for handling caustic materials where the motor is integrated into the pump, but must be totally sealed therefrom. The pump rotor is...
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4115038 |
Motor driven pump
A motor driven pump is described having an improved and simplified construction of pump casing and impeller with easy adaptability of the components over a wide range of capacity, an improved...
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4033877 |
Cyclone for removing solid impurities from liquid in a pump and motor unit
A glandless centrifugal pump and wet electric motor unit for use in fossil-fired power plants has a cover which is sealingly connected with one end of the main portion of the motor housing and...
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3791765 |
LIQUID PUMP, PARTICULARLY A FUEL-OIL PUMP
The invention relates to a pump assembly which may be utilized as a fuel oil pump and which has constructional features which minimize the possibility of air binding. The assembly has a rotating...
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3417704 |
Centrifugal pump having an impeller shaft mounted on a rotating bearing
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3413925 |
Centrifugal pump having thrust balancing means
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3395644 |
Motor pump unit
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3347168 |
Motor pump unit
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3333544 |
Water pump motor constructions
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3309009 |
Refrigerating compressors
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3306222 |
Electrically driven circulating pump
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3292549 |
Motor driven pumps
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3291056 |
Electric motor pump
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3289595 |
High pressure canned motor pump
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3288073 |
Canned pump having reduced hydraulic thrust
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3280750 |
Motor driven pump
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3264653 |
Pump
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3228341 |
Pump
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3225698 |
Hermetic motor-pump construction
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