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US 11,499,444 B1Granted
Turbine shroud assembly with forward and aft pin shroud attachment
AssigneeROLLS-ROYCE plc
InventorsTed J. Freeman, Aaron D. Sippel, David J. Thomas
Life of this patent
Estimating the term…
Abstract
A turbine shroud assembly adapted for use with a gas turbine engine includes a carrier, a seal segment, and a mount assembly. The carrier is configured to be coupled to a turbine case. The seal segment is shaped to define a gas path boundary of the shroud assembly. The mounting assembly is configured to couple the seal segment to the carrier.
Claims20
A turbine shroud assembly adapted for use with a gas turbine engine, the shroud assembly comprising
- a carrier shaped to include an outer wall, a forward support wall, an aft support wall spaced axially from the forward support wall, and a central support wall located between the forward support wall and the aft support,
- a seal segment comprising ceramic matrix composite materials, the seal segment shaped to include a runner that extends circumferentially partway around an axis, a forward mount flange that extends from the runner into a forward space between the forward support wall and the central support wall of the carrier, and an aft mount flange that extends from the runner into an aft space between the aft support wall and the central support wall of the carrier, and
- a mount assembly including a forward pin that extends axially through the forward mount flange of the seal segment into both the forward support wall and the central support wall of the carrier and an aft pin circumferentially aligned with and aft of the forward pin that extends axially through the aft mount flange of the seal segment into both the aft support wall and the central support wall of the carrier, the forward pin and the aft pin are spaced axially apart from one another by at least a portion of the central support wall and separate from each other so as to allow for independent movement of the forward pin and the aft pin.
A turbine shroud assembly adapted for use with a gas turbine engine, the shroud assembly comprising
- a carrier shaped to include an outer wall, a forward support wall, an aft support wall spaced axially from the forward support wall, and a central support wall located between the forward support wall and the aft support,
- a seal segment shaped to include a runner that extends circumferentially partway around an axis, a forward mount flange that extends from the runner into a forward space between the forward support wall and the central support wall of the carrier, and an aft mount flange that extends from the runner into an aft space between the aft support wall and the central support wall of the carrier, and
- a mount assembly including a forward pin that extends axially through the forward mount flange of the seal segment into both the forward support wall and the central support wall of the carrier and an aft pin that extends axially through the aft mount flange of the seal segment into both the aft support wall and the central support wall of the carrier.
A method comprising
- providing a carrier, a seal segment, and a mount assembly, the carrier including an outer wall that extends circumferentially at least partway about an axis, a forward support wall that extends radially inward from the outer wall, an aft support wall spaced axially from the forward support wall that extends radially inwardly from the outer wall, and a central support wall located axially between the forward support wall and the aft support wall that extends radially inwardly from the outer wall, the seal segment including a runner that extends circumferentially partway around an axis, a forward mount flange that extends radially outward from the runner, and an aft mount flange that extends radially outward from the runner, and the mount assembly including a forward pin and an aft pin,
- locating the seal segment adjacent to the carrier so that the forward mount flange is between the forward support wall and the central support wall of the carrier and the aft mount flange is between the aft support wall and the central support wall of the carrier, and
- coupling the seal segment with the carrier with the first split-pin fastener by inserting the forward pin of the first split-pin fastener through the forward support wall of the carrier and the forward mount flange of the seal segment into the central support wall of the carrier and inserting the aft pin of the first split-pin fastener through the aft support wall of the carrier and the aft mount flange of the seal segment into the central support wall of the carrier.
Dependencies are inferred from the claim text.