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US 8,695,926 B2Granted
Active gurney flap
AssigneeClaverham Limited
InventorsPaul R. Brewer, Steven Shorcott, Reg R. Raval
Life of this patent
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Abstract
A gurney flap assembly has an actuator, a flexible or hinged body, the body flexing from a retracted to a deployed position in reaction to motion of the actuator, and a first seal extending along a first edge of the flexible body that flexes from the stowed position. Linear motion of the actuator output is transposed to the gurney flap thereby moving it from a retracted position into the airstream. This trailing edge device will improve airfoil lift.
Claims19
A gurney flap assembly, said flap assembly comprising:
- an actuator,
- a flexible body, said flexible body configured to flex from a stowed position flush with a pressure side of a wing to a deployed position in reaction to motion of said actuator, and
- a first seal extending along a first edge of said flexible body that flexes to and from said stowed position.
A gurney flap assembly for a rotary wing aircraft comprising:
- a wing having a pressure side, a suction side, a trailing edge and a hollow portion between said pressure side and said suction side and adjacent said trailing edge of said wing,
- an actuator disposed within said hollow portion of said wing, and
- a flexible body attaching to said pressure side and to said actuator, said body having a downwardly depending flap for moving to and from a retracted position at said pressure side, said flexible body is spaced from a trailing edge of the wing, and
- a first seal extending along a first edge of said flexible body that flexes from a stowed position.
1 more element
Dependencies are inferred from the claim text.