Control surface actuation system
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United States of America Patent
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Oct 30, 2012
Grant Date -
Dec 4, 2008
app pub date -
May 27, 2008
filing date -
Jun 1, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Systems for controlling flow effector control surfaces. The system comprises a flow effector control coupled to an elongated bar at one end of the bar. The elongated bar is coupled at the other end to the middle of a T-shaped member. A compliant link is coupled to the bar between the control surface and the T-shaped member. At each end of the T-shaped member is coupled a shape memory alloy wire which acts as an actuating means. When one of the shape memory alloy wire contracts, the elongated bar pivots about the compliant link and activates or retracts the flow effector control surface.
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