Goodrich Actuation Systems Sas

Raphaël Medina

Thomas Moulon

Isabelle Port-Robach

Rui Amaral

Christian Dorval

A screw () assembly for an actuator () is described comprising: a screw (); a nut () threaded on said screw (), such that rotation of said screw () causes axial movement of said nut (); a stop located at an end of said screw () and defining an axial limit of said nut (); a first feature located on said nut (); and a second feature located on said stop; wherein said first and second features are configured to cooperate with one another substantially upon contact of said nut () with said stop so as to indicate an amount of free movement between said nut () and said screw ().

Horizontal stabiliser actuator with freeplay detecting features and method thereof

A device () for detecting the breakage of a primary path in a flight control actuator, said actuator having a primary path () comprising a rotary hollow screw (), a secondary path () comprising a safety rod () that reacts the load passing through the screw (), said device () being characterized in that it comprises a position sensor (), connected to the screw (), to measure information representative of the angular position thereof, and a disconnection system () able to disconnect the screw () position sensor () in the event of relative movement of the rod () with respect to the screw () if there is a break in the primary path ().

Device for detecting breakage of a primary path in a flight control actuator

The assembly comprises a first and a second nut intended to cooperate with a screw in particular provided in an adjustable tailplane actuator for an aircraft, and a mechanical connection between the first and the second nut comprising means for fusible driving of the second nut by the first nut, in which the mechanical connection also comprises adjustable spacing means forming a wedge between the first and second nuts.

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Ecouen, France

Raphaël Medina