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US 10,370,994 B2Granted
Pressure activated seals for a gas turbine engine
AssigneesRolls-Royce North American Technologies Inc., ROLLS-ROYCE plc
InventorsDavid J. Thomas, Joseph P. Lamusga, Ted J. Freeman, Aaron D. Sippel
Life of this patent
Estimating the term…
Abstract
An assembly for use in a gas turbine engine is disclosed. The assembly includes a first component arranged adjacent to a second component to form a gap therebetween and a pressure activated seal that resists flow through the gap.
Claims17
A gas turbine engine assembly adapted to be arranged between a high pressure zone and a low pressure zone within a gas turbine engine, the assembly comprising
- a first component comprising metallic materials formed to include an axially extending seal-support slot,
- a second component comprising ceramic-matrix composite materials arranged adjacent to the first component to form a radially extending gap therebetween, and
- a pressure-activated seal comprising a sheet of material having a generally uniform thickness shaped to form a support portion that extends into the seal-support slot of the first component and a sealing portion arranged in the gap between the first component and the second component, wherein the sealing portion is shaped to be pushed by high pressure gas on one side of the gap into contact with the second component to resist flow through the gap,
- wherein the sealing portion of the pressure-activated seal forms a radially-outwardly opening channel that receives high pressure gas from the high pressure zone and wherein the support portion of the pressure-activated seal forms an axially opening channel facing the gap that receives high pressure gas from the high pressure zone.
1 more element
A gas turbine engine assembly comprising
- a first component formed to include a seal-support slot,
- a second component arranged adjacent to the first component to form a gap therebetween, and
- a pressure-activated seal including a support portion that extends into the seal-support slot of the first component and a sealing portion arranged in the gap between the first component and the second component, wherein the sealing portion of the pressure-activated seal forms a primarily radially-outwardly opening channel to open toward a high pressure zone when assembled in an engine, and wherein the support portion of the pressure-activated seal forms a primarily axially opening channel facing the gap that receives high pressure gas from the high pressure zone.
Dependencies are inferred from the claim text.