Locking and unlocking mechanism for ram air turbine
AssigneeHamilton Sundstrand Corporation
InventorPiotr Sobolak
Life of this patent
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Abstract
A locking mechanism comprising a linkage assembly comprising a first link and a second link joined at a pivot point; a linkage assembly spring to bias the linkage assembly into a first, locked, position; a cam assembly having a cam 1 with a cam surface in engagement with the linkage assembly; a cam biasing member such as a spring arranged to bias the cam surface to press against the linkage assembly sufficiently to overcome the linkage assembly spring and to force the linkage assembly into a second, unlocked position; and a solenoid assembly arranged to engage the cam in a locked position in which the cam is prevented from forcing the linkage assembly into the unlocked position.
Claims5
A locking mechanism comprising a linkage assembly comprising:
- a first link and a second link joined at a pivot point;
- a linkage assembly spring to bias the linkage assembly into a first, locked, position, the linkage assembly spring is coaxial with a rotational axis of the first link;
- a cam assembly having a cam with a cam surface in engagement with the linkage assembly;
- a cam biasing member arranged to bias the cam surface to press against the linkage assembly sufficiently to overcome the linkage assembly spring and to force the linkage assembly into a second, unlocked position;
- and
- a solenoid assembly arranged to directly engage the cam in the locked position in which the cam is prevented from forcing the linkage assembly into the unlocked position.
Dependencies are inferred from the claim text.