Patent Number: 9,970,313

Title: Unison ring assembly

Abstract: A unison ring assembly comprises a backing plate, and a plurality of pocket-forming portions. The backing plate is formed as an annular disc, with the annular disc being planar in a radial plane of the unison ring assembly. The plurality of pocket-forming portions are equi-spaced circumferentially around the axis of the unison ring assembly, and each of the plurality of pocket-forming portions is attached to the backing plate to form a corresponding radially extending pocket.

Inventors: Beaven; David Michael (Nottingham, GB), Mackie; Kenneth John (Derby, GB), Stretton; Richard Geoffrey (Leicester, GB)

Assignee: ROLLS-ROYCE plc

International Classification: F01D 17/10 (20060101); F01D 15/02 (20060101); B64C 11/30 (20060101)

Expiration Date: 2022-05-15 0:00:00