System controlling the pitch of impeller assembly, turbine engine, and method for controlling the airscrew blades pitch angle

摘要

The object of the invention is to control the angle of the propeller and the torque assembly, which reduces to a minimum the circumferential load, and the tension in the angle control system (38). The system may generally consist of a ring-fed fitter, a load bearing (LTB) and a guide shaft which is mounted rotationally to the LTB bearing in order to guide the LTB bearing along the curved path relative to the rotor frame.