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:
Aug. 20, 2024
Filed:
Jun. 27, 2018
General Electric Company, Schenectady, NY (US);
Steven Clark Calkins, Byfield, MA (US);
Christopher Roy Carrington, Gloucester, GB;
Thomas Bradley Kenney, Ashby, MA (US);
Simone Castellani, Viareggio, IT;
Albion Richardson Fletcher, Jr., Braintree, MA (US);
GE Aviation Systems Limited, Cheltenham, GB;
GE Avio S.r.l., Rivalta di Torino, IT;
General Electric Company, Cincinnati, OH (US);
Abstract
Propeller control systems and methods for controlling the pitch of a plurality of propeller blades of a variable pitch propeller assembly operatively coupled with an engine is provided. In one exemplary aspect, the propeller control system includes features for combining overspeed and feathering protective functions in a protective control valve communicatively coupled with a controller. In such an event the controller controls the protective control valve 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 based at least in part on the condition of the engine.