The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2025
Filed:
May. 23, 2022
Safran Aircraft Engines, Paris, FR;
Huguette De Wergifosse, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The present invention relates to a pitch change mechanism for a turbine engine propeller () comprising: —an electric machine () fixedly mounted on a stator portion of the turbine engine and comprising an actuator shaft (); —an axial piston hydraulic pump () suitable for pressurising a hydraulic fluid, the hydraulic pump comprising a body () driven by the propeller (); a barrel () housing a set of pistons () each comprising a sliding block (); and a plate () that is tilted with respect to the axis of rotation, each sliding block bearing on the plate, one of the plate () and the barrel () being fixedly connected to the stator portion of the turbine engine and the other of the plate () and the barrel () being fixed to the actuator shaft () for conjoint rotation.