Torque-sensitive locking and release mechanism for a bistable pitch propeller
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United States of America Patent
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Oct 29, 2019
Grant Date -
Sep 20, 2018
app pub date -
Sep 25, 2017
filing date -
Mar 20, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A bistable pitch propeller includes a ball, a spring, and a clutch module where the clutch module has a range of rotational movement between a locked end position and a released end position. The clutch module includes a detent, where the ball sits inside and outside of the detent when the clutch module is in the locked end position and released end position, respectively. In response to an input torque and a spring force from the spring, the clutch module rotates toward the released end position and the locked end position, respectively. The bistable pitch propeller also includes an aircraft blade where the aircraft blade is at the first pitch angle and the second pitch angle when the clutch module is in the locked end position and the released end position, respectively.
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