Circulation control aerofoils
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United States of America Patent
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Jun 25, 1996
Grant Date -
N/A
app pub date -
Aug 18, 1994
filing date -
Aug 19, 1993
priority date (Note) -
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Abstract
A circulation control aerofoil having an internal chamber for receiving during operation air for exhaust through a circulation control air exhaust slot defined by spaced-apart slot lips is provided with a plurality of actuators of electrically deformable material adapted during operation to cause local bending of the aerofoil structure to which they are attached to selectively adjust the width of the air exhaust slot. The actuators may be piezo-electric actuators.
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