Patent ID: 8376269

Claim:
A hydraulic valve assembly comprising: a hydraulic valve; a control rod configured to be moved in translation along a first longitudinal axis by flight controls of an aircraft; a servocontrol; an outlet rod configured to be moved in translation along a second longitudinal axis and configured to transfer a hydraulic fluid between the servocontrol and the hydraulic valve; and a blocker device configured to block a movement of the control rod when a difference between a first movement of the control rod and a second movement of the outlet rod exceeds a predetermined threshold, wherein the blocker device includes: at least one moveable abutment configured to block the movement of the control rod when the predetermined threshold is reached and configured to move in longitudinal translation with the outlet rod; and a differential lever configured to mechanically link the control rod to the outlet rod and to cooperate with the at least one moveable abutment.