Aircraft engine thrust demand unit controller

摘要

The control has a fixed support for a movable lever which is coupled to an output for transmitting signals proportional to displacement of the lever w.r.t. the support. A recirculating ball-screw drive includes a lead-screw (3) and a ball nut (4) engaged on the screw. - One of the screw and nut is coupled to the lever, and linearly movable with it w.r.t. the other of the screw and nut. An output stepping motor (10) is coupled to the ball-screw assembly for relative rotation of the stator (6) and rotor (5) accompanied by relative rotation of the nut and screw.