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Extended core for motor/generator

United States Patent

7,095,153
August 22, 2006
View the Complete Patent at the US Patent & Trademark Office
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.
Shoykhet; Boris A. (Beachwood, OH)
Reliance Electric Technologies, LLC (Mayfield Heights, OH)
11/ 084,889
March 21, 2005
GOVERNMENT LICENSE RIGHTS This invention was made with Government support under Cooperative Agreement No. DE-FC36-93CH10580 awarded by the Department of Energy. The Government has certain rights in this invention.