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Class 310/156.81 - Magnet positioned between squirrel cage and stator


Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter wherein at least one permanent magnet of
No. of patents: 18
Last issue date: 02/09/2010


NumberTitleIssue Date
7659650Self-magnetizing motor and compressor having the same
A self magnetizing motor and a compressor having the same is configured to require a lower starting voltage and to deliver superior performance. In the self magnetizing motor, a magnetic material on an exterior of the rotor is magnetized when power is supplied to a ...
02/09/2010
7417348Rotor of permanent magnet rotating electric machine
In the prior art in which permanent magnets are regularly arranged over the whole circumference of a rotor core, a satisfactory magnetic flux distribution is hard to obtain, and the cogging torque and the distortion factor of the induced electromotive force waveform...
08/26/2008
7352092Integrated motor and controller assemblies for horizontal axis washing machines
A horizontal axis washing machine includes an integrated motor and controller assembly. The controller is mounted to the electric motor with the controller positioned under a tub of the washing machine. The tub provides drip protection for the controller during oper...
04/01/2008
7312550Architecture for electric machine
In one aspect, an alternator is described which includes a current control apparatus including a stator winding and a control winding, wherein current control in the control winding regulates the stator winding. In another aspect, a gas turbine engine includes a mul...
12/25/2007
7288923Voltage-limited electric machine
An electric alternator having a rotor, stator and at least one winding in the stator adapted to conduct a current, the machine also having and first and second magnetic circuits around different portions of the winding which may be configured relative to one another...
10/30/2007
7161270Line start reluctance synchronous motor
A line start reluctance synchronous motor includes: a single phase stator arranged at an inner circumferential surface of a motor body and on which a main coil and a sub coil are wound; a magnet unit free-rotatably arranged along an inner circumferential surface of ...
01/09/2007
7126313Architecture for electric machine
The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first winding and inductively coupled to the first winding, which may be us...
10/24/2006
7112908Rotor for synchronous induction motor, synchronous induction motor, fan motor, compressor, air conditioner, and refrigerator
There are problems in a rotor having a slit that it is difficult to increase the number of rotations of the rotor, since the centrifugal force is received at both ends of the slit, and if the connection part is made thick to increase the number of rotations, the pro...
09/26/2006
7102259Rotor of a synchronous induction electric motor
A rotor of a synchronous induction electric motor according to the present invention includes a slot for generating induction torque and a slit for generating reluctance torque. The slot and the slit are filled up with aluminum which is short-circuited by an end-rin...
09/05/2006
6998752Dynamo-electric machine
Conductor bars 7a and end rings 7b, 7c of a rotor 5 of a rotary electric machine are made of an aluminum material. The end rings 7b, 7c are electrically and mechanically joined to the oppos...
02/14/2006
6965183Architecture for electric machine
The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first winding and inductively coupled to the first winding, which may be us...
11/15/2005
6925824Apparatus for driving a compressor and a refrigerating air conditioner
An apparatus for driving a compressor comprises a compressor having a compression mechanism part for sucking a fluid to compress the same, and an electric motor for driving the compression mechanism part, and an inverter device for driving the electric motor at vari...
08/09/2005
6891295Flywheel magneto generator
A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, w...
05/10/2005
6029336Method of fabricating a permanent magnet line start motor having magnets outside the starting cage
A rotor for use in a line start permanent magnet motor comprises a rotor core having a shaft and including teeth defining slots; a rotor cage, at least a portion of which extends through the slots; and a layer of composite permanent magnet material at lea...
02/29/2000
5952757Line start permanent magnet motor
An electric motor including a stator having a stator core, a start winding and first and second main windings is described. The first main winding and the start winding are configured to form a lower number of poles than the second main windings. The stat...
09/14/1999
4564777Reinforced permanent magnet rotor with cast zinc
A novel rotor construction is disclosed, in which plural permanent magnets are arranged on the outer periphery of a rotor core, which are protected with a cover, and in which a member is placed at an axial end of the rotor core cast with end rings with a ...
01/14/1986
4473752Aircraft engine starting with synchronous ac generator
The invention relates to a starter-generator machine (10) for starting turbine type aircraft engines. The machine combines an induction motor with a synchronous samarium cobalt generator. In the machine, a rotor-shaped stator (22) is fixed and positioned ...
09/25/1984
4454438Synchronized induction motor
A synchronized induction motor comprises a stator including a cylindrical armature core having an armature winding wound thereon for generating a rotating magnetic field, a cylindrical housing for housing the stator therein, end brackets mounted at opposi...
06/12/1984
 
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