Rolls-royce Corporation

Rolls-royce North American Technologies Inc.

Rolls-royce American Technologies, Inc.

Thomas Nixon

Ted Joseph Freeman

Aaron D Sippel

Sean E Landwehr

Donald W Reinhart

David John Thomas

Michael J Whittle

Richard Christopher Uskert

Jay Edgar Lane

Jeffrey M Crutchfield

Robert F Proctor

A turbine vane assembly includes a flow path ring, an airfoil heat shield, and a seal. The flow path ring is made of ceramic matrix composite materials. The airfoil heat shield is made of ceramic matrix composite materials. The seal resists passage of gases through a gap formed between the flow path ring and the airfoil heat shield along an interface at the airfoil aperture.

Ceramic matrix composite endwall sealing around vane airfoil of gas turbine engine

A ceramic matrix composite (CMC) component is provided that includes: a CMC body in which an environmental protection layer is completely embedded within a CMC material of the CMC body, the environmental protection layer comprising a ceramic that has a higher impact and/or environmental resistance than the CMC material. Methods for manufacturing the CMC component are also provided.

Recession resistant intermediate layer for CMC vane

A gas turbine engine includes a turbine shroud assembly with a carrier and a plurality of turbine shroud segments. Each turbine shroud segment includes a blade track segment and a mount assembly. The carrier is arranged to extend circumferentially at least partway around an axis. The blade track segment includes a shroud wall and a mount post that extends radially away from the shroud wall. The mount assembly is configured to couple the blade track segment with the carrier.

Turbine shroud assembly with pinned attachment supplements for ceramic matrix composite component mounting

An assembly comprising a ceramic matrix composite component, a monolithic insert, and a polymer char and a method for producing the same. The ceramic matrix composite component may include an exterior surface, with the monolithic insert bonded to the exterior surface of the ceramic matrix composite component. The polymer char may be sandwiched between the monolithic insert and the exterior surface of the ceramic matrix composite that may bond the monolithic insert to the ceramic matrix composite component.

Machinable CMC insert

A ceramic matrix composite component and a ceramic insert, and a method for producing the same. The ceramic matrix composite component may include an exterior surface comprising silicon fibers in a silicon carbide matrix. The insert may include a continuous porosity bonded to the exterior surface of the ceramic matrix composite component. The silicon carbide matrix of the ceramic matrix composite component may extend into the porosity of the ceramic insert to bond the ceramic insert to the ceramic matrix composite component.

An assembly comprising a ceramic matrix composite component, a ceramic insert, and a ply and a method for producing the same. The ceramic matrix composite component may comprise silicon carbide fibers in a silicon carbide matrix. The ceramic inset may be adjacent to the ceramic matrix composite component. The ply may at least partially cover the ceramic insert such that the ceramic insert may be sandwiched between the ply and the ceramic matrix composite component, and the ply may extend beyond the ceramic insert in at least one direction so that the ply is joined to the ceramic matrix composite. The ply may comprise at least one layer of silicon carbide fibers or carbon fibers in a silicon carbide matrix.

An assembly comprising a structural component and a sacrificial layer, and method for producing the same. The structural component may comprise silicon carbide fibers within a silicon carbide matrix. The sacrificial layer may be joined to the structural component and may comprising unarranged ceramic fibers, wherein the sacrificial layer may comprise a volume fiber fraction lower than a volume fiber fraction of the structural component.

A vane assembly for a gas turbine engine is disclosed in this paper. The vane assembly includes an inner platform, an outer platform, and a ceramic-containing airfoil. The ceramic-containing airfoil extends from the inner platform to the outer platform. A clamp mechanism couples the inner platform and the outer platform to the ceramic-containing airfoil.

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Brownsburg, IN, United States of America

Thomas Nixon