Invention Grant
- Patent Title: Optimization of downstream open fan propeller position and placement of acoustic sensors
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Application No.: US14079550Application Date: 2013-11-13
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Publication No.: US09637221B2Publication Date: 2017-05-02
- Inventor: Matthew David Moore , Kelly L. Boren , Robin Blair Langtry
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: THE BOEING COMPANY
- Current Assignee: THE BOEING COMPANY
- Current Assignee Address: US IL Chicago
- Agency: Yee & Associates, P.C.
- Main IPC: B64C11/00
- IPC: B64C11/00 ; B64C11/30 ; B64C11/48 ; B64D27/02
Abstract:
A method and apparatus for controlling a propeller of a contra-rotation open fan (CROF) engine of an aircraft is provided. A diameter of the propeller is set to be at a first diameter during at least a portion of a first flight condition of the aircraft. The diameter of the propeller is set to be at a second diameter, different from the first diameter, during at least a portion of a second flight condition of the aircraft.
Public/Granted literature
- US20140308124A1 OPTIMIZATION OF DOWNSTREAM OPEN FAN PROPELLER POSITION AND PLACEMENT OF ACOUSTIC SENSORS Public/Granted day:2014-10-16
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