Patent ID: 6914354
Filing Date: 2005-07-05
Classification: B60K,H02K,Y10S

Abstract:
1. A system having an electric motor, the system comprising: a motor housing having an internal reservoir; a rotor; a stator core having a stator winding, a portion of the stator winding protruding from at least one side of the stator core; a fluid bath in the reservoir of the motor housing, the fluid bath having a top surface, wherein the rotor is maintained out of contact with the fluid bath; a fluid level sensor for sensing a level of the top surface of the fluid bath; and a controller coupled with the fluid level sensor to receive signals indicating the level of the top surface of the fluid bath, the controller operable to control a rate of the fluid circulating through the reservoir and the controller configured to maintain the level of the top surface as a fluid-gas interface spaced above the protruding portion of the stator winding.