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Title:
SUPPORT RING FOR ROTARY ASSEMBLY
Document Type and Number:
Japanese Patent JP2013091490
Kind Code:
A
Abstract:

To provide a support ring for a rotary assembly, such as a propeller assembly.

A support ring 30 includes support cups 20 for receiving blade roots of propeller blades. The support cups 20 are interconnected by bridging structures 32. Each bridging structure 32 includes bridging walls 36 which extend radially from a bridging web 38. The bridging structures 32 thus have a channel-shaped cross-section. The bridging walls 36 have a scalloped configuration at their radially outer edges 40. As a result of this configuration, the neutral axes of the bridging structures 36 are straight, so that the support ring 30 behaves, in structural terms, as a polygon.


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Inventors:
UDALL KENNETH FRANKLIN
MACKIE KENNETH J
Application Number:
JP2012234696A
Publication Date:
May 16, 2013
Filing Date:
October 24, 2012
Export Citation:
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Assignee:
ROLLS ROYCE PLC
International Classes:
B64C11/06; F01D5/30; F02C7/042; F02C9/22; F04D29/38
Domestic Patent References:
JPH02246897A1990-10-02
Foreign References:
US4762466A1988-08-09
GB2229230A1990-09-19
US20100239421A12010-09-23
WO2011000943A12011-01-06
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Hiroyuki Tomita
Osamu Hoshino



 
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