Extended core for motor/generator
AssigneeReliance Electric Technologies, LLC
InventorBoris A. Shoykhet
Life of this patent
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Abstract
An extended stator core in a motor/generator can be utilized to mitigate losses in end regions of the core and a frame of the motor/generator. To mitigate the losses, the stator core can be extended to a length substantially equivalent to or greater than a length of a magnetically active portion in the rotor. Alternatively, a conventional length stator core can be utilized with a shortened magnetically active portion to mitigate losses in the motor/generator. To mitigate the losses in the core caused by stator winding, the core can be extended to a length substantially equivalent or greater than a length of stator winding.
Claims12
A motor/generator comprising:
- a rotor having a magnetic ally active portion;
- a stator winding that interacts with the rotor to facilitate rotation of the rotor;
- and
- a stator core coupled to the stator winding, the magnetically active portion of the rotor is longer than the stator core by a length from about zero to about fifty percent an inner radius of the stator core.
A superconducting synchronous motor/generator comprising:
- a rotor having a superconducting winding;
- and
- a stator core;
- the superconducting winding is longer than the stator core by a length ranging from near zero to about fifty percent of an inner radius of the stator core.
Dependencies are inferred from the claim text.