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6680549 |
Tapered rotor-stator air gap for superconducting synchronous machine
A synchronous machine is disclosed comprising a rotor coupled to a rotor cooling system; a stator around the rotor and separated from the rotor by an annular gap between the rotor and an inner...
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6680550 |
Hermetic motor-driven compressor
In a hermetic motor-driven compressor, a first gas passage is formed by a space between a linear section in a motor stator and a hermetic container, and a second gas passage in parallel with the...
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6674188 |
Liquid cooled alternator
An alternator comprising an inner housing, an outer housing mounted over the inner housing and a plurality of o-rings positioned between the inner housing and the outer housing thereby creating a...
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6674189 |
Spindle apparatus
A spindle apparatus of a machine tool comprises a main spindle rotatably supported in a housing via bearings. A helium circulation system is provided for introducing helium, lower in density and...
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6664671 |
Rotating electrical machine
The invention relates to a rotating electrical machine with a contacting device whose circumference has at least one slide contact disposed on it, which remains in sliding contact with a brush...
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6657357 |
Low pressure drop lattice area reinforcement for section plate support for cores of generators
Section plates in a generator frame are spaced longitudinally or axially one from the other and have ventilation openings for flowing a cooling gas. The ventilation openings comprise in each...
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6657330 |
Turbo generator with a rotor with direct gas cooling
In a turbo generator with a rotor with direct gas cooling, which rotor is provided with a rotor winding arranged around a central rotor body, said rotor winding being on the front sides covered by...
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6657335 |
Stepping motor and driving apparatus having separate position detection coil
A stepping motor which includes: exciting coils; a rotor provided with a plurality of N/S poles so as to rotate following a change of an excitation state of the exciting coils; and a detecting coil...
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6657327 |
Linear direct current motor
A linear direct current motor comprises a center yoke ( 1 ) ending in the longitudinal direction X, an outer yoke ( 31 ) arranged parallel to the center yoke, a peat magnet ( 41 ) for generating...
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6639334 |
Jet impingement cooling of electric motor end-windings
An assembly for cooling an electric motor, the assembly comprising a housing, a stator, a rotor, a winding, an end-winding integrally formed with the winding, and a jet impingement device operable...
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6633098 |
Alternator for use in a vehicle
An alternator for use in an automobile includes brackets for supporting a rotation shaft at both sides of a rotor, being thermally connected to a stator for supporting the stator, while one side of...
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6630756 |
Air flow arrangement for generator enclosure
A generator structure is provided having an improved air flow arrangement. The generator structure includes an enclosure having an interior for receiving an engine and an alternator therein. A roof...
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6624542 |
Flywheel power source with passive generator cooling
A flywheel power source having a flywheel supported by a bearing system for rotation inside an evacuated container. A brushless motor and generator is coupled to the flywheel for accelerating and...
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6621185 |
Stator deflector apparatus and method therefor
A stator deflector assembly for an electric motor includes a plastic deflector formed to conform to a shape of the stator, an absorbent media envelope supported by the deflector, and a holding...
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6617738 |
Electrical power generation system utilizing an electrically superconductive coil
In a preferred embodiment, the invention comprises an apparatus for generating electrical power which utilizes an electrically superconductive coil immersed in a cryogenic fluid for generating a...
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6617713 |
Stagnant rotating prevention and safety control device for a main shaft
A stagnant rotating prevention and safety control device for a main shaft is disclosed. The control device is provided with an oil fume detector, temperature control module and a vibration module...
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6605885 |
Super-conducting rotor coil support with tension rods and bolts
A rotor is disclosed for a synchronous machine comprising: a rotor core; a super-conducting coil winding extending around at least a portion of the rotor core, said coil winding having a side...
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6597082 |
HTS superconducting rotating machine
A superconducting machine of the type having a stator assembly and a rotor assembly that rotates within the stator assembly and is spaced from the stator assembly by a gap is disclosed. This...
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6590305 |
High temperature super-conducting synchronous rotor having an electromagnetic shield and method for assembly
A rotor is disclosed for a synchronous machine comprising: a rotor core; a super-conducting coil winding extending around at least a portion of the rotor core, the coil winding having a pair of...
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6590308 |
High power density super-conducting electric machine
A high power density synchronous machine is disclosed comprising: a stator having conventional stator coils arranged in an annulus around a vacuum cylindrical cavity; a magnetically saturated...
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6586853 |
Rotary cooling fan for an AC generator
Since a structure of a cooling fan of an alternative current generator for a vehicle is formed with a resin molding product having an insert metal fitting, a freedom degree on said fan design shape...
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6577038 |
Stator bar header with hollow strand package
A new and improved header design for a fluid tight, current carrying header that reduces direct contact between the liquid coolant and brazed joints. More specifically, the present invention...
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6577027 |
Electrical equipment winding structure providing improved cooling fluid flow
A winding structure of induction electric apparatus cooling disc windings within a cooling block evenly. With respect to a pair of cooling blocks including a cooling block A disposed upstream of...
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6570276 |
Ventilation device and rail traction electric motor equipped with such a device
A ventilation device includes a centrifugal fan ( 24 ) capable of rotating in one or both directions, placed in an air inlet chamber (C) and delivering air towards the motor ( 1 ). The air stream...
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6568193 |
Method and apparatus for cooling an electric motor
A method and apparatus for cooling an electric motor is provided. The enclosure is adapted to house the internal components of an electric motor and protect the internal components of the electric...
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6566773 |
Bearing housing for a drive device of a cheese-producing textile machine
A bearing housing ( 23 ) for a drive device ( 27 ) integrated in a creel ( 18 ) of a cheese-producing textile machine, which brakes the cheese ( 11 ) via a braking current directed opposite the...
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6552452 |
Dynamoelectric machine rotor ventilation
A dynamoelectric machine has a stator member, a rotor member, a first shroud and a second shroud. The first shroud and the second shroud members are mounted to the rotor adjacent respective first...
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6552904 |
Power tool with heat sink assembly
A power tool such as a drill has an activation switch which energizes a motor which, in turn, drives an output. The switch includes a field effect transistor coupled to a heat sink to dissipate...
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6545377 |
Coil with cooling means
The invention relates to a coil comprising current-conducting turns ( 2 ) and cooling means ( 3 ) for cooling the coil. To improve the cooling efficiency, the coil comprises a plurality of heat...
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6541888 |
Winding body for receiving a winding for an electromagnetomechanical converter and electromagnetomechanical converter
A winding body has a winding area ( 31 ) for a winding ( 13 ), which winding area ( 31 ) is formed by a winding carrier ( 32 ) and two legs ( 34, 35 ) which define the winding area ( 31 ) in axial...
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6536218 |
Supraconducting device comprising a cooling unit for a rotating supraconductive coil
A superconducting device includes a winding including superconductor material, which can be rotated about a rotation axis. For indirect cooling of the winding, a regenerative cryocooler having a...
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6538351 |
Rotating machine with plural coolers in plural ventilation passages
A rotating machine having a stator core and coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed near a rotating axis of the rotating...
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6528907 |
Linear motor
A linear motor capable of effectively cooling heat generated when the linear motor is driven is provided where the motor includes a moving element having the lower portion with a plurality of field...
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6528919 |
Brushless motor having water draining portion
A brushless motor includes a motor holder and a case connected thereto. A ventilation chamber is defined between the motor holder and the case. The ventilation chamber includes an air inlet...
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6528909 |
Motor shaft having an integral heat pipe
A spindle motor assembly having a shaft with an integral heat pipe. The shaft with the integral heat pipe improves the thermal conductivity of the shaft and the spindle motor assembly. The shaft...
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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...
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6522046 |
Vehicular AC generator
A vehicular AC generator comprising a pair of cores included in a rotor and supported by a rotating shaft, a plurality of trapezoidal-shaped claws as magnetic poles protruding on the outer...
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6515383 |
Passive, phase-change, stator winding end-turn cooled electric machine
A device and method for substantially enhancing the cooling of electric machines, e.g., motors and generators, is described. A hermetically-sealed chamber surrounds electric wire winding end-turns...
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6504274 |
Generator stator cooling design with concavity surfaces
A stator core assembly comprising adjacent packages of stacked lamination sheets that are separated by a plurality of radially extending spacer blocks, and each adjacent pair of spacer blocks...
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6499532 |
Electric motor cooling system
An electric motor cooling system including an electric motor with an air coolant inlet and an air coolant outlet, a first housing extending over and affixed to the electric motor with an air flow...
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6488486 |
Indirect cooling of an electric fan
The mobile part of a fan includes at least one rotor of an electric motor and fan blades integral with the rotor. A rotating fixed part includes at least one stator of the electric motor. The fan...
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6486575 |
Molded rotor blocking and other molded articles of manufacture
A molded rotor block, as well as other molded articles of manufacture, are made from a resin material selected from the group consisting of epoxy thermosets, polyester thermosets, phenolic, and...
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6483210 |
Rotary electric machine
The invention relates to a method of improving the performance of a rotary electric machine through improved cooling, whereby a cooling fluid is conducted through axial cooling channels ( 15 ) in...
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6465926 |
Cleaning/cooling of high-power rotary current collector system
An electrical current collector system ( 20 ) comprises an electrically conductive slip ring ( 27 ) mounted to a rotatable shaft ( 28 ), as well as a fixed conducting ring assembly ( 44 ) having...
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6465917 |
Spaceblock deflector for increased electric generator endwinding cooling
A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located...
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6459178 |
Forced-convection heat exchanger for a rotary electrical machine
A force-convection heat exchanger for a rotary electrical machine, which includes one or more tubing elements arranged between the conductors that constitute the stator windings of the rotary...
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6459179 |
Electrical machines
An electrical machine, such as an electric motor, dynamo or alternator has a casing with cooling vents enabling cooling fluid to flow into and out of the casing when the rotor of the electrical...
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6439907 |
Generator junction assembly
A junction assembly has at least one junction and at least one flexible connector. The junction has at least one channel sized and configured to accept and secure at least a portion of a flexible...
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6424065 |
Starter-generator for a motor vehicle
In a starter-generator for a motor vehicle, having an electrical machine that can be coupled selectively to an internal combustion engine and/or a transmission of the motor vehicle, the electrical...
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6404082 |
Exciter having thermally isolated diode wheel and method of removing diode wheel for same
An exciter ( 20 ) for starting a power generator having a thermally isolated diode wheel ( 25 ) and methods of removing a diode wheel ( 25 ) from an exciter rotor shaft ( 30 ) are provided. The...
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