No-back device for flight control surface actuator
AssigneeGoodrich Actuation Systems Limited
InventorsPierre M. Turpin, Thomas M. Moulon
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Abstract
Disclosed is an actuator for varying the position of a flight control surface on an aircraft, wherein the actuator comprises a no-back device including a backlash adjuster, which is arranged to select a plurality of different backlash lengths. The backlash adjuster may be a nut which moves relative a housing of the no-back device by rotating the nut. Also disclosed is a method of adjusting the backlash (B) in a flight control surface actuator, by moving the backlash adjuster axially to adjust the backlash (B) to a desired value.
Claims15
An actuator for varying the position of a flight control surface on an aircraft, the actuator comprising:
- a ballscrew, having a screw;
- and
- a no-back device positioned around an axial section of the screw and configured to prevent back-driving of the screw, and to allow a limited backlash (B), the backlash (B) being the possible amount of axial movement of the screw relative to the no-back device, wherein the no-back device comprises a backlash adjuster arranged to select a plurality of different backlash lengths.
Dependencies are inferred from the claim text.