Invention Grant
- Patent Title: Propeller control system for an aircraft
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Application No.: US16020121Application Date: 2018-06-27
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Publication No.: US12065234B2Publication Date: 2024-08-20
- Inventor: Steven Clark Calkins , Christopher Roy Carrington , Thomas Bradley Kenney , Simone Castellani , Albion Richardson Fletcher, Jr.
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: GE Aviation Systems Limited,GE Avio S.r.l.,General Electric Company
- Current Assignee: GE Aviation Systems Limited,GE Avio S.r.l.,General Electric Company
- Current Assignee Address: GB Cheltenham; IT Rivalta di Torino; US OH Cincinnati
- Agency: Hanley, Flight & Zimmerman, LLC
- Priority: EP 425082 2017.07.28
- Main IPC: B64C11/40
- IPC: B64C11/40 ; B64C11/30 ; B64C11/38 ; B64C11/44

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.
Public/Granted literature
- US20190031319A1 PROPELLER CONTROL SYSTEM FOR AN AIRCRAFT Public/Granted day:2019-01-31
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