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US 10,480,336 B2Granted
Seals for a gas turbine engine
AssigneeRolls-Royce North American Technologies Inc.
InventorsDavid L. Sutterfield, Gregory W. Zeaton
Life of this patent
Estimating the term…
Abstract
A sealing assembly may include a support, an engine component, and a seal. The engine component may be mounted relative to the support to define a gap between the engine component and the support. The seal may be arranged between the support and the engine component to block gasses from passing through the gap. The seal may be adapted to compress and expand to fill the gap during expansion and contraction of the adjacent components that occurs during operation of a gas turbine engine including the sealing assembly.
Claims14
A sealing assembly comprising:
- a support having a support-seal surface,
- an engine component having a component-seal surface, the engine component mounted so that the component-seal surface is arranged in spaced-apart confronting relation with the support-seal surface to define a gap between the support and the engine component that grows and shrinks based on the temperature of the support and the engine component, and
- a seal adapted to block gasses from passing through the gap between the support and the engine component, the seal including (i) a mount ring coupled to the support and spaced apart from the engine component the mount ring formed to include a plurality of spaced apart pusher arms, (ii) a ceramic tadpole gasket having a compressible head and a flat body extending from the compressible head, and (iii) a retainer ring configured to retain the ceramic tadpole gasket in place relative to the mount ring with a portion of the retainer ring folded over the mount ring to couple the retainer ring to the mount ring along with the flat body of the ceramic tadpole gasket, wherein the compressible head is engaged by the plurality of spaced apart pusher arms and the flat body is formed to include receiver slots that receive the pusher arms therethrough so that the tadpole gasket is coupled to the mount ring.
A seal adapted for use in a gas turbine engine, the seal comprising:
- a ceramic tadpole gasket having a compressible head and a flat body extending from the compressible head,
- a mount ring formed to include a plurality of spaced apart pusher arms that engage the compressible head and the flat body is formed to include receiver slots that receive the pusher arms therethrough so that the tadpole gasket is coupled to the mount ring, and
- a retainer ring configured to retain the ceramic tadpole gasket in place relative to the mount ring with a portion of the retainer ring folded over the mount ring to couple the retainer ring to the mount ring along with the flat body of the ceramic tadpole gasket.
A method of assembling a seal for a gas turbine engine comprising:
- providing a support having a support-seal surface,
- providing an engine component having a component-seal surface, the engine component mounted so that the component-seal surface is arranged in spaced-apart confronting relation with the support-seal surface to define a gap between the support and the engine component that grows and shrinks based on the temperature of the support and the engine component,
- providing a seal adapted to block gasses from passing through the gap between the support and the engine component, the seal including (i) a metallic mount ring coupled to the support and spaced apart from the engine component the metallic mount ring formed to include a plurality of spaced apart pusher arms, (ii) and a ceramic tadpole gasket having a compressible head and a flat body extending from the compressible head, and the flat body is formed to include receiver slots,
- inserting circumferentially spaced apart pusher arms included in the metallic mount ring into the receiver slots formed in the flat body that extends from the compressible head of the ceramic tadpole gasket, and
- providing a retainer ring configured to retain the ceramic tadpole gasket in place relative to the metallic mount ring with a portion of the retainer ring folded over the metallic mount ring to couple the retainer ring to the metallic mount ring along with the flat body of the ceramic tadpole gasket.
2 more elements
Dependencies are inferred from the claim text.