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7602089 |
Rotary electric machine
A rotary electric machine includes: a stator, a rotor and rotor fans contained in a closed type frame. The cooling gas is circulated in the frame by the rotor fans and warmed as a result of heat...
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7598635 |
Dynamo electric machine
A rotor for a dynamo electric machine comprises a rotor body 12 defining a plurality of poles in the form of limbs 16 around which windings 18 are provided, and a wedge arrangement 20 ...
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7591147 |
Electric motor cooling jacket resistor
A cooling jacket resistor includes a passageway incorporated into a wall and across the entire inside length of a cooling jacket from an inside of the cooling jacket. The passageway may include at...
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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...
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7583041 |
Overheat preventing apparatus for electric motor
The present invention includes temperature transition estimating means 24, 25 for estimating a temperature transition of an electric motor 1 caused by the passage of electric current through...
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7579812 |
Modulation control of power generation system
Methods and apparatuses are disclosed for producing current with a desired output frequency from one or more fixed or variable speed alternators by varying a saturation level of a portion of the...
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7579724 |
Methods and apparatus for using an electrical machine to transport fluids through a pipeline
A stator for an electrical machine includes teeth assembled from a plurality of stacked laminations mounted on a cylindrical protective surface thereby forming a plurality of slots. The stator also...
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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...
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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,...
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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...
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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...
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7566999 |
Electromagnetic device with composite structure heat transfer flow path
Electromagnetic components are provided with a heat exchange mechanism. For example, a fluid-cooled electromagnetic field-functioning device, such as a motor, generator, transformer, solenoid or...
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7548000 |
Multilayer radiation shield
A power generation system including: a generator including a rotor including a superconductive rotor coil coupled to a rotatable shaft; a first prime mover drivingly coupled to the rotatable shaft;...
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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...
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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...
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7538457 |
Electric motor assemblies with coolant flow for concentrated windings
The present invention relates to a cooling system and method for the concentrated motor stator windings of an electric motor. The cooling system and method provides coolant directly onto the motor...
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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...
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7514826 |
Stator coil cooling and method of manufacturing
A stator coil module facilitating the manufacture of an electric rotating machine is provided. The stator coil module is provided with a stator coil ( 1 ), a cooling pipe ( 2 ), and a mold member (...
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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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7508100 |
Electric motor/generator and method of cooling an electromechanical transmission
An electromechanical transmission includes a rotor supported by a rotor hub that has at least one passage formed therein for providing cooling fluid flow to the rotor. Preferably, cooling fluid is...
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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...
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7481924 |
Cooling medium flow passage
The present invention provides a cooling medium flow path for improving cooling efficiency of a cooling medium used for liquid-cooling systems for motors, radiators and the like. The cooling...
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7476993 |
Method of making electric machine winding
A method of providing an electric machine winding having a fluid flow channel, for receiving coolant fluid therein is disclosed. The method includes impressing the channel into a peripheral surface...
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7474022 |
Liquid-cooled armature bar clip-to-strand connection and method
A liquid-cooled armature bar end fitting-to-strand brazed connection. The end fitting is comprised of a main body and a cover, and defines a cavity, a bottom wall of which is defined in part by the...
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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...
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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...
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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.
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7464460 |
Method of metallurgically bonding a stator bar
A method for metallurgically bonding a stator bar to a coupling to reduce the incidence of leak paths resulting from corrosion. The stator bar comprises strands through which a liquid coolant can...
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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....
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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...
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7456536 |
Electric motor
An electric motor includes a rotor shaft arranged in a casing and having an axial hollow bore formed therethrough for passage of lubricating oil, a rotor, a stator, a pair of bearings each having...
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7443062 |
Motor rotor cooling with rotation heat pipes
A heat pipe is partially-filled with a liquid, such as water, and is used to transfer heat from a rotating element, such as a rotor, via phase change and internal recycle of the liquid. Several...
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7439646 |
High power generator with enhanced stator heat removal
A high speed, high power generator has its main stator configured with one or more reduced-diameter sections. The generator includes a generator housing, a main rotor, and a main stator. The...
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7429810 |
Electric rotary machine
In the stator of a electric rotary machine in which heat conductive insulation resin is filled at the end portions of a stator coil, the material of a stator core, the stator coil, the heat...
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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...
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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...
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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...
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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...
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7405491 |
Electric power generating device
There is provided an electric power generating device which includes a generator which is constituted by an interior permanent magnet (IPM) synchronous generator, and is connected to a steam...
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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...
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7402923 |
Electrically variable transmission
A transmission includes a housing, an electric motor having a stator within the housing, and a member including a generally cylindrical portion that circumscribes at least part of the stator. The...
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7397154 |
Spray cooled motor system
A spray cooled motor system with a motor housing with an interior and an exterior, a stator mounted within the interior of the motor housing, a rotor mounted within the interior of the motor...
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7347169 |
Cooling oil delivery structure for a vehicular generator, and engine including same
In an engine having a generator mounted thereon, an oil passage is formed within the engine's crankcase to supply oil to an oil jet for cooling one or more pistons. In addition, oil is supplied to...
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7334316 |
Method of sealing a generator stator bar and a stator bar end fitting
A method of sealing a generator stator bar and a stator bar end fitting receiving the end including the steps of: brazing the fitting to the end of the stator bar with a braze material; applying a...
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7332837 |
Cooling and handling of reaction torque for an axial flux motor
Methods and apparatus are provided for an axial electric motor. The apparatus comprises, a stator having coils thereon for producing a magnetic field, a rotor rotated by the magnetic field, an...
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7317268 |
System and method for cooling a super-conducting device
A system and method for cooling a superconductive rotor coil. The system comprises a rotatable shaft coupled to the superconductive rotor coil. The rotatable shaft may comprise an axial passageway...
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7315099 |
Cooled electric drive unit for a motor vehicle
An electric drive unit for a motor vehicle, comprising:
(a) a stub axle; (b) an electric motor having a stator that is fixed with respect to the stub axle and having a rotor that is rotatably...
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7309931 |
Electric motor with cooling coil
The invention relates to a motor part of a linear motor, i.e. the primary part or secondary part of an asynchronous or synchronous linear motor. According to the invention, it is proposed to...
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7307363 |
Stator cooling system for a hybrid transmission
A cooling system for an annular stator housed within a transmission casing includes a first curved tube sufficiently sized to at least partially circumscribe the stator when the tube is placed...
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7298064 |
Electric motor and apparatus for manufacturing electric motor
A motor capable of reducing cogging torque depending on teeth of a stator, and a motor manufacturing apparatus for manufacturing this motor. The angles of rolling directions of cores stacked are...
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