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7635256 |
Housing for an electric machine with auxiliary ventilation
A fan housing for an electric machine includes a housing body for accommodation of the electric machine having a mounting flange for securement to a motor-driven element. The housing body defines a...
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7584624 |
Apparatus for preventing liquid refrigerant accumulation of air conditioner and method thereof
Disclosed is an apparatus and method for preventing liquid refrigerant accumulation in an accumulator of an outdoor unit of an air conditioner. The method includes the steps of: determining a state...
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7559198 |
Cooling device for the hydraulic fluid of a site machine hydrostatic drive
A cooling device for the hydraulic fluid of a site machine hydrostatic drive comprises a pump body and a rotor with vanes, keyed directly on a driving shaft which drives the pump, and driven in...
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7544047 |
Compressor with two cooling chambers
A compressor, which is cooled by cooling medium, includes a compression chamber, a first cooling chamber and a second cooling chamber. In the compression chamber, gas is compressed and then...
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7478997 |
Compressor
A compressor which includes a piston ( 150 ) reciprocating in a cylinder bore ( 111 ) provided in a cylinder block. Length of the circumferential surface at the compression load side ( 160 ) is...
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7448858 |
Pump aggregate
A pump aggregate A comprises a one-piece cast hollow body 1 including an exterior connection block 3 and an interior lateral wall 16 of a bearing shield. A pressure transmission path is...
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7367784 |
Oil supply device for compressor in refrigerating system
Oil supply device ( 130 ) for a compressor in a refrigerating system including a cylindrical piece ( 131 ) fixed to a lower end of a crankshaft ( 110 ) for rotating together with the crankshaft, a...
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7290991 |
Dual oil supply pump
An automotive engine oil pump assembly having first and second pump mechanisms contained within a common housing. A shaft rotatably supported in the housing drives the pump mechanisms in a...
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7213683 |
Piston lubricating system for a reciprocating compressor with a linear motor
The present invention provides a piston lubrication system for a reciprocating compressor with a linear motor. The piston lubrication system includes an oil sump defined within a hermetic shell,...
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7210309 |
Variable displacement compressor
A variable displacement compressor for efficiently cooling and lubricating seals arranged on a rotary shaft. The seals are arranged at end portions of the rotary shaft that project from a housing...
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7207185 |
Vehicle air conditioning apparatus
A vehicle air conditioning apparatus includes a refrigerant circulation circuit. The vehicle air conditioning apparatus has a variable displacement type compressor, a first pressure monitoring...
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7137265 |
Apparatus and method for controlling oil of air conditioner
An apparatus and a method for controlling oil of a multi-compressor installed in an air conditioner includes a microcomputer for sequentially stopping compressors installed in the air conditioner...
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7137791 |
Axial bearing arrangement for a hermetic compressor
A reciprocating hermetic compressor includes a cylinder block internal to a shell and carrying a cylinder and a radial bearing hub; a crankshaft vertically mounted in the radial bearing hub and...
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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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6948915 |
Oil free screw compressor
A screw compressor includes a compressor main body, a male rotor having a screw-like male tooth shape and a female rotor having a screw-like female tooth shape meshing with the screw-like male...
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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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6725843 |
Fuel injection pump having feed pump assembly
In a fuel injection pump, fuel discharged from a feed pump assembly is supplied to each pressurizing chamber through a corresponding metering valve. A portion of the fuel is supplied to a receiving...
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6708981 |
Seal assemblies
A seal assembly ( 22 ) for sealing a pressurized gaseous product includes, a pair of seals ( 24,26 ) spaced axially to provide a chamber ( 28 ) therebetween, a gas seal ( 24 ) being disposed on the...
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6692240 |
Cylindrical pump housing with a fan guard mounted on each end of the housing with snap tabs engaging housing recesses
A pump housing ( 14, 16 ) has a fan guard ( 40 ) secured to the end of the housing by four crescent-shaped tabs ( 60 ) fitting into four crescent-shaped cast-in recesses ( 66 ) of the housing ( 14,...
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6659739 |
Locomotive air compressor with an electric motor supported by an external bearing
The present invention provides an externally mounted assembly for supporting a rotatable shaft member driven by an electric motor. The externally mounted assembly comprises an annularly projected...
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6592336 |
Hydraulic pump with a built-in electric motor
A hydraulic pump with a built-in electric motor wherein an electric motor and a pump unit are arranged in tandem fashion and accommodated within a common housing. In this pump, the housing is in...
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6589026 |
Fluid machinery having a helical mechanism with through holes for ventilation
A fluid machinery comprises a helical mechanism provided with a cylinder, a roller eccentrically disposed inside the cylinder and formed with a helical groove and a blade member fitted in the...
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6579078 |
Multi-stage centrifugal compressor driven by integral high speed motor
A multi-stage centrifugal compressor with an integral high-speed motor for compressing air has a variable speed permanent magnet motor having electronically commutated stator coils surrounding a...
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6565329 |
Electric type swash plate compressor
The object of the present invention is to offer an electric type swash plate compressor which is compact and reduced in weight and lightened, and which can efficiently cool down a motor chamber and...
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6524084 |
Motor pump unit
A motor pump aggregate M has a housing 1 defining an oil reservoir with first and second chambers R 1 , R 2 . An electromotor 2 is driving via its motor shaft W at least one radial piston pump...
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6503069 |
Scroll-type compressor with an integrated motor and a compact cooling system
The scroll-type compressor with an integrated motor of the present invention comprises a housing 1, a fixed scroll 21 fixed to the housing 1, a movable scroll 31 installed eccentrically to...
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6481050 |
Motor-fan cooling air directed into filter bag
A vacuum cleaner having a main body and a handle, the main body being formed with a nozzle which delivers a stream of dirt-laden air through a dirt duct through a motor-fan inlet, the handle being...
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6474954 |
Compressor cooling system
Disclosed herein is an oilless air compressor having a cooling system with a drive unit operating a crankshaft disposed within a crankcase and to which is attached a pair of pistons movable within...
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6450785 |
Oil pump for a hermetic compressor
A hermetic motor compressor unit for household and similar refrigeration appliances, comprising a sealed casing having a bottom that forms a sump for holding lubricating oil. Inside of the casing...
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6447267 |
Locomotive air compressor with motor supported by outside bearing
The present invention provides an assembly for supporting a rotatable shaft member driven by a motor. The assembly comprises a base member, an upright support member connected to the base member...
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6443711 |
Inlet bearing lubrication for a screw machine
The inlet bearings of a screw machine, such as a refrigerant compressor, are both lubricated and cooled by a portion of the motor cooling and suction flow which has lubricant entrained therein and...
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6409480 |
Drive unit for hydraulic consumers for individual structural component parts of a machine
A drive unit for hydraulic consumers for individual structural component parts of a machine for producing shaped articles from molding materials, including a motor, a pump driven by the motor, and...
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6409484 |
Oil supply unit of linear compressor
An oil supply unit of a linear compressor including: a well-closed container filled with oil; a frame installed within the well-closed container; a cylinder fixed at the frame; a piston inserted,...
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6390072 |
Pump assembly
A pump assembly flows pressurized engine oil to HEUI fuel injectors in a diesel engine. The assembly includes an inlet throttle valve which controls the volume of oil flowed to the pump dependent...
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6390789 |
Cooling means for the motor of a turbocompressor
A turbocompressor ( 1 ) has an outwardly gas-tight housing ( 6 ) within which an electric motor ( 2 ) and a multistage radial turbocompressor ( 3 ) are arranged on a common shaft ( 13 ). For...
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6364632 |
Compressor
Compressors with two cylinders in a horizontally opposed arrangement are known. The compressor according to the invention has a vertically aligned crankshaft. The electric drive motor is arranged...
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6328540 |
Rotary piston compressor with an axial direction of delivery
The rotary piston machine with an axial direction of delivery from the top downwards, in particular of screw spindle-type construction, with cooling ducts (12) for the motors (8), bearings (7) and...
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6322332 |
Device for the external cooling of the electric drive motor of a centrifugal pump unit
A device for the external cooling of the electrical drive motor of a centrifugal pump unit, which with the motor is advantageously to be assembled above the centrifugal pump, comprises a...
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6314749 |
Self-clearing vacuum pump with external cooling for evacuating refrigerant storage devices and systems
A method and system for fully evacuating refrigerant from storage devices, appliances, and refrigerant systems. An evacuation system is provided with a vacuum pump including a housing containing an...
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6290473 |
Fluid cooling device
A fluid cooling device in the form of a modular unit has a motor which drives a ventilator wheel and a hydraulic pump which takes fluid from an oil reservoir and delivers it to a hydraulic work...
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6230688 |
Process for generating high-pressure fuel and system for generating high fuel pressure
A process and system for generating and delivering high-pressure fuel to a high-pressure storage chamber of a fuel injection system of an internal combustion engine. The system includes a...
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6210132 |
Partition means for directing air flow over a cooler in an oilless scroll compressor
A cooling fan is fitted to one of the shaft end portions of a double-end motor, and a pulley is fitted to the other end portion. A belt is passed around this pulley and a pulley fitted to a...
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RE37019 |
Refrigeration compressor
A refrigeration motor compressor assembly has a housing including a lubricant sump in the bottom thereof into which the lower end of the drive shaft and associated rotor extend. A shield is...
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6145311 |
Pneumo-hydraulic converter for energy storage
In order to maintain high efficiency close, to isothermy despite high frequencies in a pneumo-hydraulic converter with reciprocating pistons, pipe cluster-heat exchange pipes (38) are provided in...
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6095768 |
Hermetic motor-driven compressor for refrigerators
A motor-driven compressor unit (12) suspended in a hermetic housing (10) comprises a casing (24) which encloses the stator (16) of the electric motor externally and to which the stator is fixed....
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6086331 |
Safety pumping system for hazardous environments using pressurized gas in a plurality of chambers
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6037684 |
HVLP motor assembly
A motor assembly is disclosed in which a motor is rotationally connected to an impeller for producing a fluid flow, preferably an air flow. A venturi passage is provided for conducting a high...
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6000500 |
Oil pump for compressor
A compressor has a piston attached to an eccentric part of a rotary shaft for being reciprocated to compress refrigerant. In order to provide lubricating oil to the shaft, an oil paddle is mounted...
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5996363 |
Oil level equalizing system for plural compressors
An air conditioning equipment is provided with an oil level equalizing system, which includes a plurality of low-pressure shell-type compressors communicating with a suction line through a...
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5992517 |
Downhole reciprocating plunger well pump system
A multicylinder downhole reciprocating plunger pump includes a crankshaft supported on a frame for rotation about an axis generally parallel with the wellbore axis by a submersible electric motor...
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