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US 11,629,648 B2Granted
Quick access engine rotator pad
AssigneeHamilton Sundstrand Corporation
InventorsCraig Friedberg, Matthew Allen Slayter
Life of this patent
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Abstract
An assembly for manually rotating a rotor includes a housing enclosing a first shaft and a second shaft accessible through an exterior wall of the housing. The first shaft extends from a first end rotationally coupled to the rotor to a second end selectively engageable with the second shaft. The second shaft includes a thrust plate extending from and rotatable with the second shaft. A spring disposed between the thrust plate and the housing biases the second shaft towards the exterior wall of the housing.
Claims16
An assembly comprising:
- a housing enclosing a first shaft extending from a first spline at a first end to a second spline or a key-drive socket at a second end, wherein the housing defines a bore and a lip extending from the housing into the bore;
- a second shaft extending from a third end accessible through an exterior wall of the housing to a third spline complementary to the second spline or a key-drive complimentary to the key-drive socket at a fourth end;
- a radial drive shaft rotationally coupling a rotor of a gas turbine engine to the first shaft at the first end;
- a seal cap affixed entirely within a bore of the housing at the exterior wall and circumscribing the third end of the second shaft;
- a duplex bearing or bushing affixed within the bore and abutting the seal cap laterally supporting the second shaft;
- a static seal disposed within a first groove extending circumferentially about an outer diameter of the seal cap, the static seal engaging the bore of the housing;
- a lip seal disposed within a second groove extending circumferentially about an inner diameter of the seal cap, the lip seal engaging the second shaft;
- a thrust plate extending from and rotatable with the second shaft, wherein the thrust plate is disposed between the duplex bearing or bushing and the lip of the housing;
- a spring circumscribing the second shaft and between the thrust plate and the lip of the housing;
- wherein the spring biases the second shaft towards the exterior wall of the housing.
7 more elements
Dependencies are inferred from the claim text.