Back to results
US 10,094,233 B2Granted
Turbine shroud
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc.
InventorsSean E. Landwehr, William Westphal, Ted J. Freeman, Adam L. Chamberlain
Life of this patent
Estimating the term…
Abstract
A turbine shroud for a gas turbine engine includes an annular metallic carrier, a blade track, and a cross-key connection formed between the annular metallic carrier and the ceramic blade track. The cross-key connection is formed between the annular metallic carrier and inserts included in the blade track. The inserts are bonded to an annular runner also included in the blade track by a braze layer.
Claims9
A turbine blade track comprising
- an annular ceramic runner formed to include a plurality of cutouts extending inward in a radial direction from an outer radial surface of the annular ceramic runner toward an inner radial surface of the annular ceramic runner, and
- a plurality of inserts each arranged to extend into a corresponding one of the plurality of cutouts formed in the annular ceramic runner from the outer radial surface of the annular ceramic runner toward the inner radial surface of the annular ceramic runner, wherein each of the inserts has an arcuate inner radial surface that is coextensive with an inner radial surface of the annular ceramic runner.
A turbine blade track comprising
- an annular ceramic runner formed to include a plurality of cutouts extending inward in a radial direction from an outer radial surface of the annular ceramic runner toward an inner radial surface of the annular ceramic runner, and
- a plurality of inserts each arranged to extend into a corresponding one of the plurality of cutouts formed in the annular ceramic runner from the outer radial surface of the annular ceramic runner toward the inner radial surface of the annular ceramic runner, wherein each of the plurality of inserts is cross-shaped and includes a radially-extending member and a circumferentially-extending member, and wherein the radially-extending members and the circumferentially-extending members of each of the plurality of inserts are at least partially received in a corresponding one of the plurality of cutouts.
A turbine blade track comprising
- an annular ceramic runner formed to include a plurality of cutouts extending inward in a radial direction from an outer radial surface of the annular ceramic runner toward an inner radial surface of the annular ceramic runner, and
- a plurality of inserts each arranged to extend into a corresponding one of the plurality of cutouts formed in the annular ceramic runner from the outer radial surface of the annular ceramic runner toward the inner radial surface of the annular ceramic runner, wherein each of the plurality of inserts is formed to include a keyway extending inward in the radial direction from an outer radial surface of each insert and each keyway has circumferential sides configured to engage a corresponding key included in a carrier to block rotation of the turbine blade track about a central axis of the annular ceramic runner when coupled to the carrier.
Dependencies are inferred from the claim text.