Turning gear drive system
AssigneeGeneral Electric Company
InventorWilliam Hansen
Life of this patent
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Abstract
A clutch assembly for a turning gear includes an overspeed clutch, an output shaft, and a centrifugal clutch. The overspeed clutch is disposed at the input shaft. The output shaft is in mechanical communication with the input shaft via the overspeed clutch. The centrifugal clutch is disposed at a portion of the output shaft.
Claims20
A clutch assembly for a turning gear comprising:
- an overspeed clutch disposed at an input shaft;
- an output shaft in mechanical communication with said input shaft via said overspeed clutch;
- and
- a centrifugal clutch disposed at a portion of said output shaft;
- and
- a housing disposed proximate to at least a portion of said centrifugal clutch.
The clutch assembly of claim 21, wherein said centrifugal clutch comprises a clutch pad and a coil spring.
A turning gear assembly for turning a turbine rotor comprising:
- a motor configured to produce a first rotational output at a first speed;
- a clutch assembly in mechanical communication with said electric motor;
- a reduction gear assembly in mechanical communication with said clutch assembly, said reduction gear assembly configured to produce a second rotational output at a second speed in response to receiving said first rotational output from said electric motor via said clutch assembly, said second speed being lower than said first speed, said reduction gear assembly configured to translate said second rotational output to the turbine rotor in response to engagement of said reduction gear assembly to the turbine rotor;
- and
- a disengagement assembly configured to allow disengagement of said reduction gear assembly from the turbine rotor.
The turning gear assembly of claim 109, wherein said centrifugal clutch comprises a clutch pad and a coil spring.
Dependencies are inferred from the claim text.