Actuator for controlling a flight control surface
AssigneeSafran Electronics & Defense
InventorsLouis Chavignier, Marc Lebrun, Severin Viennot
Life of this patent
Estimating the term…
Abstract
The invention relates to an actuator (4) for controlling a flight control surface (3) of an aircraft, comprising:—a primary route (5) comprising a first member (8) for generating a first torque, and a first drive shaft (10) having an end (18) able to be connected to the first member (8) and an end (19) able to be connected to the control surface (3),—a secondary route (6) comprising a second member (24) for generating a second torque and a second drive shaft (26) having an end (45) able to be connected to the second member (24) and an end (46) able to be connected to the control surface (3), in which actuator the second drive shaft (10) is hollow and extends around the first drive shaft (26).
Claims14
An actuator for controlling a flight control surface of an aircraft, comprising:
- a primary path comprising
- a first member for generating a first torque, and
- a first drive shaft having a first end for connecting to the first member and a second end for connecting to the control surface, the second end of the first drive shaft having first splines cooperating with splines of the control surface to connect in rotation the first drive shaft and the control surface,
- a secondary path comprising
- a second member for generating a second torque and
- a second drive shaft having a first end for connecting to the second member and a second end for connecting to the control surface, the second end of the second drive shaft, having second splines cooperating with the splines of the control surface to connect in rotation the second drive shaft and the control surface,
- wherein the second drive shaft is hollow and extends concentrically around the first drive shaft, and
- the second splines extend in a continuation of the first splines so that the first splines and the second splines cooperate with the corresponding splines of the control surface.
Dependencies are inferred from the claim text.