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:
Jan. 16, 2024
Filed:
Dec. 05, 2022
GE Aviation Czech S.r.o., Prague, CZ;
GE Avio S.r.l., Rivalta di Torino, IT;
Giuseppe Cervelli, Bari, IT;
Simone Castellani, Bari, IT;
Miriam Manzoni, Rivalta di Torino, IT;
Giuseppe Bellocchio, Rivalta di Torino, IT;
Vojtech Jirasek, Prague, CZ;
GE AVIO S.R.L., Rivalta di Torino, IT;
GE AVIATION CZECH S.R.O., Prague, CZ;
Abstract
A variable pitch propeller assembly operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof is provided. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.