Rolls-royce Corporation

Rolls-royce North American Technologies Inc.

Rolls-royce High Temperature Composites Inc.

Paul Antony Davis

Daniel Kent Vetters

Simon James Jones

Steven Hillier

Peter Broadhead

Aaron D Sippel

David John Thomas

Andrew J Eifert

Jeffrey Allen Walston

Bruce Edward Varney

Jun Shi

Roderick M Townes

Mark John Simms

Joseph Gordon Doyle

Michael Jacquinto

Wesley Thibault

Keith R F Speed

Katherine Sophia Piggott

David Thomas

A blade track for a gas turbine engine includes a plurality of blade track segments. The blade track segments are arranged circumferentially around a central axis to form the blade track.

Keystoned blade track

A blade track assembly is disclosed. The blade track assembly comprises a plurality of ceramic matrix composite blade track segments arranged circumferentially adjacent to one another around a central axis. Each of the blade track segments includes an arcuate runner extending in a circumferential direction around a portion of the central axis and is coupled to circumferentially adjacent blade track segments.

Full hoop blade track with flanged segments

Composite keystoned blade track

An interstage seal is provided for installation between forward and aft stage discs of a turbine section of a gas turbine engine. The seal has a forward annular portion, which extends forward to contribute to an air seal at the outer periphery of the forward stage disc, and an aft annular portion, which extends rearward to contribute to an air seal at the outer periphery of the aft stage disc. The seal has a peripheral slot into which static vane inner rails are loadable. The seal includes a first component, which provides the forward annular portion, and a second component, which provides the aft annular portion. The second component is separably connectable to the first component such that the first and second components, when connected, cooperate to form the peripheral slot. Loading the static vane inner rails into the slot prevents the second component separating from the first component.

Interstage seal

An assembly for a turbomachine comprising: a plurality of components () which, in use, are assembled into a circumferentially extending annular array; each component having a radially outer platform (), the outer platforms () of the components () forming a ring in the assembled array; wherein adjacent components () interface at adjacent surfaces () of their outer platforms (); wherein the outer platforms () each comprise at least one lug () which extends from the outer platform () over a portion of the outer platform () of an adjacent component (), and in use prevents relative radial displacement of the outer platform () of the adjacent component ().

Assembly for a turbomachine

Growing community of inventors

Bristol, United Kingdom

Paul Antony Davis