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US 10,047,624 B2Granted
Turbine shroud segment with flange-facing perimeter seal
AssigneesRolls-Royce North American Technologies Inc., ROLLS-ROYCE plc
InventorsMark O'Leary, Daniel K. Vetters, Matthew R. Brandt, Ted J. Freeman
Life of this patent
Estimating the term…
Abstract
A turbine shroud adapted for use in a gas turbine engine includes a plurality of metallic carrier segments and a plurality of blade track segments mounted to corresponding metallic carrier segments. Cooling air is directed onto the blade track segments to cool the blade track segments when exposed to high temperatures in a gas turbine engine.
Claims18
A turbine shroud segment comprising
- a carrier segment comprising metallic materials, the carrier segment formed to define an attachment-receiving space,
- a blade track segment comprising ceramic matrix composite materials, the blade track segment formed to include a runner shaped to extend partway around a central axis and an attachment portion that extends radially outward from the runner into an attachment-receiving space channel formed by the carrier segment, and
- a seal member configured to resist the movement of gasses into the attachment-receiving space, the seal member shaped to extend around the attachment portion of the blade track segment and arranged to engage a radially-outwardly facing surface of the runner, wherein the seal member is formed to include a plurality of radially-extending bleed holes adapted to conduct a flow of buffer air through the seal member to resist the movement of gasses into the attachment-receiving space.
A turbine shroud comprising
- a carrier comprising metallic materials, the carrier formed to define an attachment-receiving space,
- a blade track comprising ceramic matrix composite materials, the blade track formed to include a runner shaped to extend at least partway around a central axis and an attachment portion that extends radially outward from the runner into an attachment-receiving space formed by the carrier, and
- a seal member configured to resist the movement of gasses into the attachment-receiving space, the seal member arranged to engage a radially-outwardly facing surface of the runner,
- wherein the carrier includes a mount plate and at least one receiving wall that extends inwardly in a radial direction from the mount plate toward the central axis, the at least one receiving wall is formed to include a seal channel that extends outwardly in the radial direction, and the seal channel is configured to receive the seal member.
1 more element
Dependencies are inferred from the claim text.