Locking system and torque limiter for an electrically actuated thrust reverser
AssigneeGoodrich Actuation Systems Limited
InventorAntony Morgan
Life of this patent
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Abstract
A thrust reverser is described that comprises a new type of locking means for locking an actuator in position so that maintenance can be performed on the machine. The locking means comprises a removable locking device for preventing movement of an actuator. The locking means may also function in one configuration as an end cap. An actuator is also described comprising a removable torque limiting device for limiting torque of the actuator.
Claims8
A system, comprising:
- an actuator and a manual drive unit, wherein:
- said actuator comprises a drive spline for moving said actuator, said drive spline having a hollow shaft with an inner surface;
- and
- said manual drive unit having a shaft extending therefrom, said shaft having an outer surface;
- and
- wherein said hollow shaft of said drive spline is sized and shaped to receive and mate with said shaft of said manual drive unit;
- wherein the system further comprises:
- a removable locking device comprising a first end and a second end with a shaft (240) having an outer surface extending between said first and second ends;
- wherein said inner surface of said hollow shaft of said drive spline of said actuator is sized and shaped to receive and mate with said outer surface of said shaft of said removable locking device to thereby prevent movement of said actuator when said shaft (240) of said removable locking device is positioned within said hollow shaft of said drive spline.
A method for manually driving an actuator, said actuator comprising a drive spline for moving said actuator, said drive spline having a hollow shaft with an inner surface, the method comprising:
- providing a manual drive unit comprising a shaft extending therefrom, said shaft having an outer surface;
- inserting said shaft of said manual drive unit into said hollow shaft of said drive spline, wherein said hollow shaft is sized and shaped to receive and mate with said shaft of said manual drive unit to thereby limit torque of said actuator;
- providing a removable locking device, said removable locking device comprising a first end and a second end with a shaft having an outer surface extending between said first and second ends;
- and inserting said shaft of said removable locking device into said hollow shaft of said drive spline, said hollow shaft being sized and shaped to receive and mate with said shaft of said removable locking device to thereby prevent movement of said actuator.
Dependencies are inferred from the claim text.