FLUID COOLED ELECTRIC MOTOR
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United States of America Patent
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N/A
Issued Date -
May 26, 2011
app pub date -
Nov 22, 2010
filing date -
Nov 23, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electric motor includes a stator fixed in a motor housing, disposed around a motor shaft rotatable relative to the motor housing and formed with a radially extending through hole that is in spatial communication with an air-flow space defined between the stator and a tube body of the motor housing. The tube body is formed with an annular fluid-flow channel for receiving cooling fluid therein. A rotor is sleeved fixedly on the motor shaft. The motor shaft co-rotates with the rotor. The rotor is formed with angularly spaced apart slots extending inwardly and radially from an outer annular surface thereof, and air holes extending from an end surface thereof in an axial direction. Each air hole in the rotor is in spatial communication with corresponding slots. When the rotor rotates, the through hole in the stator is successively in spatial communication with the slots in the rotor.
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