Invention Grant
- Patent Title: Variable pitch propeller rotor
- Patent Title (中): 可变螺距螺旋桨转子
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Application No.: US13458386Application Date: 2012-04-27
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Publication No.: US09302765B2Publication Date: 2016-04-05
- Inventor: Stewart T. Thornton , Paul Simms , Colin W R McFarlane
- Applicant: Stewart T. Thornton , Paul Simms , Colin W R McFarlane
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE plc
- Current Assignee: ROLLS-ROYCE plc
- Current Assignee Address: GB London
- Agency: Oliff PLC
- Priority: GB1108091.8 20110516
- Main IPC: B64C11/32
- IPC: B64C11/32 ; B64C11/30 ; B64D27/00

Abstract:
A bladed rotor comprises a rotor body 2 carrying blades 6, whose pitch can be varied by means of a pitch input shaft 10. The pitch input shaft 10 drives the respective blade 6 about a spanwise axis X of the blade through a harmonic drive reduction gear 14. The harmonic drive reduction gear 14 comprises a wave generator 16 which is fixed for rotation on the pitch input shaft 10 and a flex spline which meshes with a circular spline 20 and is secured to the blade 6.
Public/Granted literature
- US20120294718A1 VARIABLE PITCH PROPELLER ROTOR Public/Granted day:2012-11-22
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