Patent ID: 6688846
Filing Date: 2004-02-10
Classification: F01D,F04D,Y02T,Y10T

Abstract:
Device for controlling a variable-pitch blade in a turbomachine, comprising a rod, connecting means forming an articulation between a first end of the rod and a control ring, and means for fixing a second end of the rod to a pivot of a blade that is to be controlled, characterized in that the connecting means comprise a pivot passing through a first orifice pierced in the first end of the rod and engaged in a radial housing of the control ring, the pivot being held in position by a locking ring which has openings for the passage of this pivot and which slides on the control ring,in that the fixing means comprise a fixing screw passing through a second orifice pierced in the second end of the rod and introduced into a hole of the pivot of the blade that is to be controlled, and in that the device further comprises means for holding the rod on the blade pivot so that the rod can rotate without play.