Propeller pitch change actuation system

Details Propeller pitch change actuation system Propeller pitch change actuation system

B - Operations, Transporting

64

C

244/120

B64C 11/38 (2006.01)

Patent

CA 1209559

Abstract Propeller Pitch Change Actuation System A propeller pitch change actuation system comprises an input actuator (230) driving a ball screw (200). operation of the ball screw rotates a torque tube (140) about the longitudinal axis thereof to drive a screw 145 and control valve 120 which controls the pressurization of pitch change actuator (87). Actuator (87) is supplied with hydraulic fluid through the interior of the torque tube.

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