Aeronautics and astronautics – Aircraft control – Specific control connection or actuator
Reexamination Certificate
2011-06-07
2011-06-07
Dinh, Tien (Department: 3644)
Aeronautics and astronautics
Aircraft control
Specific control connection or actuator
C244S213000, C244S215000
Reexamination Certificate
active
07954756
ABSTRACT:
A flap actuator is provided for controlling movement of a flap on a wing of an aircraft. The flap actuator includes a housing having a leading end and a trailing end. A ball nut is rotatably supported in the housing. A motor has a rotatable drive shaft that is rotatable in first and second opposite directions. A gear assembly translates rotation of the drive shaft to the ball nut. A ball screw extends along a longitudinal axis and has a terminal end operatively connectable to the flap. The ball screw is movable between a first retracted in response to rotation of the ball nut in a first direction and a second extended position in response to rotation of the ball nut in a second direction. A one-way roller clutch is operatively connectable to the ball nut. The roller clutch engages the housing and prevents rotation of the ball nut in a first direction in response to a compressive force on the ball screw by the flap. First and second concentric gimbals are positioned about the longitudinal axis adjacent the housing. The gimbals interconnect the housing to the wing.
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Cavalier Don R.
Klap Aaron M.
Bonzell Philip J
Boyle Fredrickson , S.C.
Dinh Tien
Eaton Corporation
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