Flight lock actuator with dual energy sources

Details Flight lock actuator with dual energy sources Flight lock actuator with dual energy sources

2007-12-04

2007-12-04

Collins, Timothy D. (Department: 3643)

Aeronautics and astronautics

Aircraft structure

Details

C244S118100, C188S171000

Reexamination Certificate

active

11335949

ABSTRACT:
A flight-lock actuator that can be powered by two sources of stored energy when aircraft power has been switched off. A mechanical energy storage device and an electrical energy storage device provide a fully redundant energy storage system that stores sufficient energy to complete the actuator's extension stroke when aircraft power is removed. The actuator has a motor control system that limits the stroke velocity for both the extension and retraction strokes, including a damper feature capable of effectively braking the actuator during the back-driven extension stroke.

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patent: 6622963 (2003-09-01), Ahrendt et al.
patent: 6902137 (2005-06-01), Brzeski et al.
patent: 6951052 (2005-10-01), Clew

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