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:
Sep. 23, 2025
Filed:
Dec. 15, 2022
General Electric Company, Schenectady, NY (US);
General Electric Company Polska Sp. Z O.o., Warsaw, PL;
Amit Zutshi, Mason, OH (US);
Rafal Sarba, Warsaw, PL;
James Ryan Reepmeyer, Montgomery, OH (US);
Stefan Joseph Cafaro, Chapel Hill, NC (US);
Inenhe Mohammed Khalid, West Chester, OH (US);
Daniel Edward Mollmann, Cincinnati, OH (US);
Arjan Johannes Hegeman, Cincinnati, OH (US);
GENERAL ELECTRIC COMPANY, Evendale, OH (US);
GENERAL ELECTRIC COMPANY POLSKA SP. Z O.O., Warsaw, PL;
Abstract
An open rotor engine includes a core engine, a plurality of guide vanes positioned within or extending from the core engine; and a pitch change assembly operably coupled to the plurality of guide vanes. The pitch change assembly includes one or more actuators configured to change a pitch angle of respective ones of the plurality of guide vanes, and a plurality of linkage arms that are respectively movable by actuation of at least one of the one or more actuators. The plurality of linkage arms are directly or indirectly coupled to a corresponding one of the plurality of guide vanes. The plurality of linkage arms may have a length that differs from one another, and such length may orient a displacement or a range of motion of the respective linkage arm to an envelope of rotation about a guide vane axis that differs as between the plurality of guide vanes.