US Patent Issued to SAFRAN AIRCRAFT ENGINES on July 15 for "Pitch change mechanism comprising an improved electrohydraulic actuator" (French Inventor)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,608, issued on July 15, was assigned to SAFRAN AIRCRAFT ENGINES (Paris).

"Pitch change mechanism comprising an improved electrohydraulic actuator" was invented by Huguette De Wergifosse (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a pitch change mechanism for a turbine engine propeller (10) comprising: -an electric machine (29) fixedly mounted on a stator portion of the turbine engine and comprising an actuator shaft (21); -an axial piston hydraulic pump (20) suitable for pressurising a hydraulic fluid, the hydraulic pump comprising a body (22) driven by the propeller (10); a barrel (23) ho...