Patent ID: 8944372
Filing Date: 2015-02-03
Classification: B64C,F16H

Abstract:
1. A device ( 13 ) for detecting breakage of a primary load path in a flight control actuator, said actuator having a primary load path ( 1 ) comprising a hollow rotary screw ( 2 ), a secondary load path ( 10 ) comprising a load-assuming safety rod ( 3 ) passing through the screw ( 2 ), said device ( 13 ) being characterized in that it includes a position sensor ( 15 ), connected to the screw ( 2 ) for measuring information representing its angular position, and a disconnection system ( 17 ), capable of disconnecting the position sensor ( 15 ) from the screw ( 2 ) in the event of relative displacement of the rod ( 3 ) with respect to the screw ( 2 ) upon a break of the primary load path ( 1 ).