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US 10,371,008 B2Granted
Turbine shroud
AssigneesRolls-Royce North American Technologies Inc., ROLLS-ROYCE plc
InventorsAaron D. Sippel, Bruce E. Varney, Ted J. Freeman, Jeffrey A. Walston, Jun Shi
Life of this patent
Estimating the term…
Abstract
A turbine shroud for a gas turbine engine includes an annular metallic carrier and a ceramic-containing blade track. A connection is formed between the annular metallic carrier and the ceramic-containing blade track by insert pins extending through metallic carrier into the ceramic-containing blade track.
Claims20
A turbine shroud comprising
- an annular metallic carrier formed to include a plurality of apertures that extend in a radial direction through the annular metallic carrier,
- a solid blade track formed as a continuous full hoop and including a ceramic annular runner and a plurality of pin receivers that extend inwardly in a radial direction partway into the ceramic annular runner from an outer radial surface toward an inner radial surface of the ceramic annular runner, and
- a plurality of insert pins each arranged to extend through one of the plurality of apertures formed in the annular metallic carrier into a corresponding one of the plurality of pin receivers to locate the ceramic annular runner relative to the annular metallic carrier.
A turbine shroud comprising
- a carrier adapted to be coupled to a turbine case,
- a solid blade track including a ceramic full-hoop, annular runner and a cylindrical boss that extends radially outward away from the ceramic full-hoop, annular runner and the cylindrical boss formed to include a pin receiver that extends radially inward into the cylindrical boss, and
- an insert pin arranged to extend through the carrier into the pin receiver to block rotation of the ceramic annular runner relative to the carrier.
A method of assembling a turbine shroud, the method comprising the steps of
- providing a carrier formed to include a plurality of apertures that extend in a radial direction through the carrier, a solid annular runner comprising ceramic matrix composite materials and formed to include pin receivers that extend inwardly in a radial direction partway into the solid ceramic annular runner from an outer radial surface toward an inner radial surface of the solid ceramic annular runner, and a plurality of insert pins,
- rotating the solid annular runner to a predetermined orientation relative to the carrier so that the pin receivers formed in the solid annular runner are aligned with the plurality of apertures formed in the carrier,
- nesting the solid annular runner into the carrier so that the solid annular runner is concentric with the carrier, and
- placing the plurality of insert pins into corresponding apertures and pin receivers to thereby establish a connection between the solid annular runner and the carrier.
1 more element
Dependencies are inferred from the claim text.