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.
Claims28
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.
-5. (canceled)
-9. (canceled)
The turbine blade track of claim 8, 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.
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-20. (canceled)
A turbine shroud comprising
- an annular metallic carrier,
- a blade track including a ceramic annular runner formed to include a cutout, an insert arranged to extend into the cutout, and a braze layer bonded to the ceramic annular runner and the cutout.
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A method of making a turbine blade track comprising the steps of
- placing a plurality of inserts into corresponding cutouts formed in an annular runner, and
- brazing the inserts to the annular runner to form a braze layer between each of the inserts and the annular runner.
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Dependencies are inferred from the claim text.