Shaft mounted geared fan for operating motors and method of assembling such motors
AssigneeGeneral Electric Compant
InventorsMandar Ranganath Rai, Sreeramachandra Ragidimilli, Sachin Vitthal Mahajan
Life of this patent
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Abstract
A geared cooling device and method of manufacturing a geared cooling device. The cooling device includes a fan shaft, a fan coupled to the fan shaft and a speed adjuster coupled to a motor shaft of a motor and coupled to the fan shaft. The speed adjuster adjusts a rotational speed of the fan shaft to cause the fan shaft to rotate at a different rotational speed than the motor shaft to facilitate passing cooling air past the motor. The method of manufacturing includes coupling the speed adjuster to the motor shaft and to the fan shaft.
Claims20
An operating device for use with a motor having a motor shaft, said device comprising:
- a fan shaft;
- a fan coupled to said fan shaft;
- and
- a speed adjuster coupled to the motor shaft and coupled to said fan shaft, said speed adjuster adjusts a rotational speed of said fan shaft to cause said fan shaft to rotate at a different rotational speed than the motor shaft to facilitate passing cooling air past the motor to facilitate enhanced cooling of the motor.
An electrical motor, comprising:
- a stator having a longitudinal axis;
- a rotor rotatably coupled within said stator;
- a motor shaft rotatably coupled to said rotor along said longitudinal axis;
- a fan shaft;
- a fan mounted to said fan shaft;
- and
- a speed adjuster coupled to a motor shaft of said motor and coupled to said fan shaft, said speed adjuster adjusts a rotational speed of said fan shaft to cause said fan shaft to rotate at a different rotational speed than said motor shaft to facilitate passing cooling air past the motor to facilitate enhanced cooling of said motor.
A method of assembling a motor, the method comprising:
- coupling a fan to a fan shaft;
- and
- coupling a speed adjuster to the fan shaft and to a motor shaft of the motor, the speed adjuster adjusts a rotational speed of the fan shaft to cause the fan shaft to rotate at a different rotational speed than the motor shaft to facilitate passing cooling air past the motor.
Dependencies are inferred from the claim text.