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7614250 |
Centrifugal fan with air guide
The present invention obtains a desired cooling effect in a fan motor as well as suppresses any increase in the noise level in a centrifugal fan that sucks in air from the rotary shaft direction...
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7585159 |
Automotive engine-cooling fan assembly
The present invention provides an automotive engine-cooling fan assembly including a motor having a driveshaft defining a central axis, and a fan driven by the motor. The fan includes an inner hub...
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7508101 |
Methods and apparatus for using an electrical machine to transport fluids through a pipeline
An electrical machine to facilitate transporting fluids through a pipeline is provided. The machine includes a stator, a rotor magnetically coupled to the stator, and a housing enclosing the rotor...
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7387502 |
Method and apparatus for elimination of gases in pump feed/injection equipment
A pumping apparatus for pumping a liquid from a source to a target including a motor, a first pump driven by the motor, a second pump driven by the motor and a separator in fluid communication with...
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7347674 |
Pump
A fluid pump of the type in which a housing assembly has a first sub-housing having an electric motor therein which is in line with a second sub-housing having the impeller therein, with the motor...
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7244110 |
Fan hub assembly for effective motor cooling
An electrically powered axial-flow fan has a hub to house the motor and support the fan blades. Small blades or vanes on the inside of the hub function as a radial-flow blower to draw cooling air...
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7232295 |
Tempering method for a screw-type vacuum pump
A screw-type vacuum pump ( 1 ) is tempered such that characteristics of the pump are not substantially altered when the pump is subjected to thermal stress. In order to achieve said aim, cooling is...
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7160086 |
Rotary machine cooling system
A rotary machine cooling system is provided that includes a housing having an inlet and outlet. A rotor supported in the housing for rotation about an axis with the rotor including an outer...
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7154750 |
Printed circuit board having cooling means incorporated therein
The present invention is a printed circuit board having cooling means incorporated therein, which is coordinated with a fan. The fan comprises a frame, a stator, a rotator and a circuit board. The...
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7101157 |
Cooling arrangement for an electromotor
The present invention provides a high-pressure blower comprising a fan arrangement which includes a fan, and a fan housing for conveying working air. An electromotor drives the fan via a motor...
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7097435 |
Device for draining and recharging a hermetic compressor with oil
A method of draining and recharging a hermetic compressor with oil using a drainage assembly mounted in the compressor housing. The assembly includes a tube having a valve mounted at one end...
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7078834 |
Rotor device capable of dissipating heat
A rotor capable of dissipating heat comprises a hub and a shielding received in the hub. The shielding case has an upper wall with a plurality of projection parts. The projection parts have a side...
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7063515 |
Radial fan
An air compressor includes a valve plate with cooling fins and a piston also having cooling fins. The valve plate includes an integral and angled valve plate outlet. The angling of the valve plate...
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7037089 |
Cooling fan having dual blade sets
A cooling fan with dual blade sets has an impeller formed by a rotatable hub, a stator assembly, and a shell. A plurality of mini blades and a plurality of guide blades are respectively formed on a...
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7037084 |
Blower units
A blower unit includes a housing, a shroud, a motor, a feed air impeller, a fan casing and a cooling air impeller. A motor shaft extends from both ends of the motor. The feed air impeller is...
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7021907 |
Ventilation and purge of a hydrogen blower
A hydrogen blower is provided and includes a housing having a drive unit and a compressor unit disposed therein. The drive unit is separated from the compressor unit by a neutral chamber, whereby...
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6991436 |
Air compressor mounted on a compressor tank
An air compressor having a cooling fan that cools both a pump and an electric motor. Baffle compress air against the top of the motor, causing it to break up and flow around fours sides of the...
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6951449 |
Heat-dissipating device
A heat-dissipating device is provided for generating primary airflow to dissipate heat generated by external heat sources as well as secondary airflow to dissipate heat generated from the interior...
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6905315 |
Valve plate in an air compressor
An air compressor includes a valve plate with cooling fins and a piston also having cooling fins. The valve plate includes an integral and angled valve plate outlet. The angling of the valve plate...
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6890158 |
Gas compressor
An air compressor includes a valve plate with cooling fins and a piston also having cooling fins. The valve plate includes an integral and angled valve plate outlet. The angling of the valve plate...
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6889765 |
Submersible well pumping system with improved flow switching mechanism
The invention generally concerns a submersible well pumping system comprising an axially elongated housing and a multi-chamber hydraulically driven diaphragm pump suspended in a well. The pump is...
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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...
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6793465 |
Air treatment enclosure
An air treatment enclosure includes a housing having a fresh air inlet. A baffle is located at the inlet to cause the air to take a flow path having a 90° turn. The air also takes a 90° turn when...
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6769883 |
Fan with motor ventilation system
A fan ( 10 ) is disclosed having a downrod ( 11 ), a motor ( 12 ), a motor housing ( 13 ) substantially encasing the motor ( 12 ), and blades ( 14 ) mounted to the motor housing ( 13 ). Each blade...
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6752605 |
Horizontal two stage rotary compressor with a bearing-driven lubrication structure
A hermetic rotary compressor including a housing having an oil sump formed therein; a stationary shaft fixedly mounted in the housing, a longitudinal bore formed in the shaft; and a motor mounted...
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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...
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6688859 |
Fastener mounting arrangement
An air compressor includes a valve plate with cooling fins and a piston also having cooling fins. The valve plate includes an integral and angled valve plate outlet. The angling of the valve plate...
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6684979 |
Hermetic motor-driven compressor
A hermetic motor-driven compressor is capable of decreasing both the resonance sound due to an oil feed pipe and the resonance sound due to a crankshaft generated when the oil feed pipe is rotated...
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6682320 |
Electric fan
The invention relates to an electric fan, in particular, for motor vehicles, comprising an electric drive motor, a fan wheel coupled with the drive motor, and an electronic control unit for...
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6666660 |
Motor-fan assembly for a floor cleaning machine
A motor-fan assembly for a floor care appliance having an improved working air fan for increased performance and noise reduction, a working air fan housing cover having a plurality of spiral shaped...
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6655929 |
Cooling fan dust guard
A cooling fan dust guard has provided on the inner side of fan blades multiples of fins at equal distance from one another around the spindle to create disturbance as the fan blades rotate to...
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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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6629827 |
Small size air compressor
An improved small size air compressor consists of a casing, a high pressure air generator, a power cord set and an air duct set. The high pressure air generator couples with a radiator for...
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6599105 |
Fan motor pressure housing, comprising a motor housing and a motor shroud with an air cooling passage there between
A propeller-type fan including a pressure housing for improving air flow past a motor which powers the fan.
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6595280 |
Submersible well pumping system with an improved hydraulically actuated switching mechanism
The invention generally concerns a submersible well pumping system comprising an axially elongated housing having a diameter less than the bore hole of the well, a multi-chamber hydraulically...
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6554576 |
Magnetically coupled and self-lubricated pump with bearing burnout protection
A pump has a housing plate having a front face and a back face, a housing can fixed to the plate and defining a chamber on the back face thereof, a bearing sleeve in the can fixed to the plate and...
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6533558 |
Closed rotary compressor
An object of the present invention is to attain the downsizing of a closed rotary compressor while realizing separation of oil from gas without any problem, and since an electric motor is...
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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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6488475 |
Electric blower and electric cleaner with an air cooled power device situated between the impeller and motor
An electric blower includes a motor unit having a stator and a rotor, a fan unit having an impeller attached to an output shaft of the rotor, and a circuit unit having a heat-generating component...
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6461124 |
Through-flow blower with cooling fan
A through-flow blower assembly includes a housing that carries a motor assembly. The motor assembly has a stator, and a rotor that rotates a shaft when energized. The rotor has openings...
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6457951 |
Magnetically coupled canned rotary pump
A pump has a housing plate, a housing can fixed to the plate and defining a chamber on a back face thereof, a bearing sleeve in the can fixed to the plate and extending rearward from the back face...
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6447257 |
Air compressor assembly with vibration damping structure
An apparatus includes a tank configured to contain air at an elevated pressure, an air compressor which is operative to supply compressed air for storage in the tank, and a base structure which...
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6431839 |
Air compressor assembly with shroud
An apparatus comprises a tank, an air compressor, and a motor with an output shaft. A fan is mounted on the output shaft. A drive assembly interconnects the motor operatively with the compressor....
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6386833 |
Air compressor assembly with dual cooling fans
An apparatus includes a motor with an output shaft. A solitary air compressor is linked to the output shaft so as to be driven by the output shaft. The compressor contains a piston in a cylinder. A...
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6318358 |
Furnace blower with double sided impeller
A blower for a furnace is provided where the blower has an impeller that is configured to create a primary air flow of combustion air into the blower housing and a secondary air flow of cooling air...
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6283726 |
Radial blower, particularly for heating and air conditioning systems in automobiles
A radial blower, particularly for heating and air-conditioning systems for automobiles, has a spiral blower housing that is provided with an air intake (5) in a housing lateral wall and with an air...
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6247907 |
Thin counterweight for sealed compressor
A sealed compressor incorporates a relatively thin counterweight. The relatively thin counterweight is able to fit within a much smaller space than prior art cast counterweights. The relatively...
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6223740 |
Fuel-fired furnace with self-cooling draft inducer fan
A gas-fired forced draft air heating furnace is provided with a specially designed self-cooling draft inducer fan that overlies an inshot-type burner section of the furnace and is operatively...
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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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6121698 |
Oil cooled motor and pump apparatus
Disclosed is a motor and pump which operate completely submerged in the pump fluid which uses surrounding fluid to cool the heat generated within the motor. The motor is also built with the...
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