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7615897 Cooling device of motor  
A motor cooling device including an impeller 2 , supported by a rotary shaft 1 a of a motor 1 , and a fan cover 4 , which encases a front portion and a peripheral portion of the impeller 2 ...
7592723 Vehicular electric rotary machine  
A vehicular electric rotary machine of a heat pipe cooling type is disclosed including heat pipe means 14, 14 A, 15, 15 B, associated with a cooling fin 51, 52 and a rear end wall 122 of a...
7592721 Torque transmission assembly for superconducting rotating machines  
A rotor assembly includes a superconducting winding assembly positioned within a cryogenic region of the rotor assembly. In operation, the superconducting winding assembly generates a magnetic flux...
7589481 Control device integrated dynamo-electric machine  
In order to improve reliability, cost performance, and cooling property, a control device integrated dynamo-electric machine mounted to a dynamo-electric machine includes an inverter bridge...
7589441 Circumferentially wound cooling tube structure for cooling a stator  
A stator assembly including a plurality of stator coil assemblies and a stator coil support structure constructed of a non-magnetic, thermally-conductive material. The stator coil support structure...
7576465 Dual rotor electromagnetic machine  
The invention relates to an electric synchronous machine. There is a need for a dual rotor electric synchronous machine which has a mechanism for adjusting the rotor relative angular displacement...
7576459 Electric machine with fluid supply control system  
An electric machine includes a fluid control system that is configured to regulate the flow rate of fluid to the electric machine. The machine includes a sensor that senses a parameter...
7576458 Dipping varnish-coated cooling shell of a housing for an electric machine  
A coolable housing shell for an electric machine, which is produced as a cast part, accommodates a concentric interior rotor/stator arrangement, coils, and end windings, and comprises a clear,...
7569957 Heating element cooling structure and drive device having the cooling structure  
A heat generating member cooling structure in which a coolant space is formed between a heat releasing surface that is thermally connected to a heat generating member and an opposing surface that...
7569955 Electric motor with heat pipes  
An electric motor including a motor portion, a cooling portion and a plurality of heat pipes is provided. The motor portion includes a stator and a rotor that when energized with electric current...
7569954 Redundant cooling system with two cooling circuits for an electric motor  
A redundant cooling device, for an electrical submarine drive motor, includes a first cooling circuit and a second cooling circuit, by which thermal energy may be removed from the electric...
7567418 Thermal isolating torque tube  
A torque tube assembly for transmitting rotational force from a first end to a second end includes a number n of concentric elongate torque tubes, where n is an odd integer greater than or equal to...
7557475 Methods and apparatus for cooling generators  
A baffle for guiding cooling fluids in a power generator cooled by a cooling fluid and having a flange, a stator, and an end stator has an inclined surface configured to direct a first portion of...
7554227 Heat-dissipating device for motor base  
A motor includes a base having a fixing seat, an axial tube mounted to the fixing seat, a rotor mounted to the axial tube, and a circuit board mounted to the base and including a stator and at...
7550882 Cooling for an electric motor or generator  
Improved cooling arrangement for an electric motor or generator including a housing, what is called a “slotless” tubular stator lamination ( 4 ), a rotor ( 2 ) with permanent magnets and...
7547999 Superconducting multi-pole electrical machine  
An electrical motor/generator is provided with at least one of a superconducting rotor, a stator including dovetailed winding dividers, and a stator cooling arrangement with at least one cooling...
7545060 Method and apparatus for heat removal from electric motor winding end-turns  
An electric motor includes a stator having a plurality of slots. The slots have slot ends and channels formed between the slot ends. A plurality of wire windings is disposed in the slots. A...
7531924 Cooling and supporting apparatus for current leads of superconducting rotating machine  
Disclosed is a cooling and supporting apparatus for current leads of a superconducting rotating machine. The cooling and supporting apparatus is installed on the current leads, and includes an...
7530156 Lamination cooling system formation method  
An electric motor, transformer or inductor having a cooling system. A stack of laminations have apertures at least partially coincident with apertures of adjacent laminations. The apertures define...
7528511 Cooling system for a vehicle drive assembly  
A cooling system for use in a vehicle drive assembly having an electric drive with a rotor and a stator is disclosed. The cooling system is adapted to cool the rotor via a liquid coolant or by...
7528510 Superconducting machine device with a superconducting winding and thermosiphon cooling  
The machine device comprises a motor ( 2 ) with a rotor ( 5 ) rotating about an axis (A), the superconducting winding of which is coupled with thermal conduction to a central refrigerant cavity (...
7527114 Electrically-powered axle with wheel hub drive  
An axle with wheel hub drive including an electric motor ( 3 ) cooled with cooling fluid is proposed in which an external cooling is incorporated in the wheel heads ( 2 ) of the axle ( 1 ).
7525224 Drive unit and inverter with cooling technique  
A drive unit comprises an electric motor, a drive unit casing 2 accommodating therein the electric motor, an inverter 3 that controls the electric motor, and a flow passage of a refrigerant...
7525223 Induction motor having the rotor located within a shell  
The magnetic flux generated by stator electrical winding can flow inside motor stator structure, so it is unnecessary to put the stator electrical winding and the rotor in the same medium. The...
7498711 Cooling of a stator  
The invention relates to the cooling of a stator ( 3 ) of an electric machine ( 1 ), the stator ( 3 ) comprising an autonomous cooling circuit, that is to say distinct from another cooling circuit...
7482725 System and method for direct liquid cooling of electric machines  
A system is provided for cooling a stator coil of a rotating machine. In one embodiment, and by way of example only, the system includes a stator core, a radial core opening, and a sleeve. The...
7479719 Alternator for vehicle  
An alternator for a vehicle has a regulator disposed in a casing so as to be exposed from a window of the casing, an input harness and an output harness disposed outside the casing, and an...
7479716 Cooling system for a stator assembly  
A stator assembly is provided having a generally annular stator core including a plurality of radially inwardly extending stator teeth. A stator wire is wound around each of the plurality of stator...
7474021 Cooling assembly for electric machine  
A cooling assembly to be inserted in electric machines includes a generally cylindrical body to be inserted inside the internal stator of an electric machine. The body includes a top surface...
7471023 Electric machine provided with an internal stator  
An electric machine is described herein. The machine includes an internal stator provided with a central opening. A generally cylindrical cooling assembly is mounted inside the central opening via...
7467568 Drive device comprising a gear unit and a motor unit  
A drive device has a gear unit having a gear shaft and a motor unit having a motor shaft drivingly connected to the gear shaft. At least one cooling unit is arranged within the drive device for...
7466046 Methods and apparatus for operating an electric machine  
A method of operating a high speed machine, wherein the method includes providing at least one heteropolar generator that includes a stator, a rotor, and at least one stationary superconducting...
7466045 In-shaft reverse brayton cycle cryo-cooler  
An in-shaft cryogenic cooler mounts entirely within the shaft of a dynamoelectric machine that has a rotor comprising a high temperature superconductor.
7462963 Motor cooling device and cooling method  
A motor cooling apparatus and method to auto-circulate coolant to reduce the weight and size of the cooling system. The cooling apparatus includes a coolant path disposed at hot areas of the motor....
7462961 Superconductivity rotor having torque tube  
A superconductivity rotor has a field coil portion wound with a superconductivity wire, a support portion for supporting the field coil portion, torque tubes positioned at both ends of the support...
7456542 Inlet guidevanes for generator rotors  
The present invention provides for a method of installing a guidevane 20 to an end plate 6 that comprises manufacturing a guidevane with at least one tab 30 located on a top length-wise edge...
7453174 Superconducting electric motor  
A superconducting motor which operates in a synchronous mode of operation, can also be operated in an induction mode in the event that the superconducting components of the motor lose their...
7443063 Cooling fan with motor cooler  
A cooling fan comprising an outer housing. A motor support is fixed to the outer housing and a motor is mounted to the motor support. A hub is rotatably coupled to the motor and, with the motor...
7429809 Driving motor, especially for a pump  
Described is a drive motor, in particular for a pump, which has a rotor having a drive shaft, and a stator enclosed by a stator casing which is enclosed by an outer casing. The stator casing and...
7423507 Inductance assembly for an electric machine  
The present invention is generally concerned with an inductance assembly that is so configured and sized as to be inserted inside the cooling assembly of an electric machine to thereby decrease the...
7423356 Thermally-conductive stator support structure  
A stator assembly including a plurality of stator coil assemblies and a stator coil support structure constructed of a non-magnetic, thermally-conductive material. The stator coil support structure...
7414338 Electric rotating machine capable of reducing performance deterioration due to discharge  
An electric rotating machine includes a case, a stator, a rotor and an oil. The stator is comprised of a stator core and a coil. The oil has a volume resistivity ranging from 10 2 to 10 9 Ωcm...
7414336 Dual flow circulation system for a mover  
A circulation system ( 330 ) for a mover ( 328 ) includes a fluid source ( 360 ) that directs a first fluid ( 356 ) into a first inlet ( 364 A) of the mover ( 328 ) and a second fluid ( 358 ) into...
7411326 BLDC motor and pump assembly with encapsulated circuit board  
A BLDC motor assembly and method for manufacturing same is disclosed. The motor has a housing, a shaft supported for rotation within the housing, a stator disposed within the housing for generating...
7402924 Cooling assembly for electric machine  
A cooling assembly including a generally cylindrical body to be inserted inside the generally cylindrical internal stator of an electric machine is described herein. The body includes a cylindrical...
7391136 Electric rotating machine  
An in-slot conductor part of a stator winding of a rotary electric machine has multiple in-slot conductors disposed in multiple slots. In each of the multiple slots a plurality of the in-slot...
7372175 Two-spool bypass turbojet with a rear electricity generator, and an air flow connection device and system  
A two-spool bypass turbojet includes a low-pressure spool having a rear portion carrying a low-pressure turbine provided with a low-pressure rotor. The turbojet includes a support structure...
7365462 Alternator directly connected to engine  
An alternator is composed of a frame, a rotor rotatably supported in the frame, a stator contained in the frame outside the rotor and other associated components. A front end of the alternator is...
7362016 Belt drive system with outer rotor motor  
An outer rotor motor having a tubular shaft for maximum motor cooling effect. Coolant may flow through coolant channels of the shaft and the motor in various configurations to carry away the heat....
7359194 Device and method for cooling an electronics unit  
A device for cooling an electronics unit, in particular a control electronics unit of a hand-held power tool, has an air-conducting device that directs at least a portion of an air stream exiting...