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US 8,944,756 B2Granted
Blade outer air seal assembly
AssigneeUnited Technologies Corporation
InventorKen Lagueux
Life of this patent
Estimating the term…
Abstract
An example blade outer air seal assembly includes a blade outer air seal that is biased toward a second part. The blade outer air seal and the second part move together radially during operation. Radial inward movement of the blade outer air seal is limited exclusively by the second part during operation.
Claims20
A blade outer air seal assembly of a turbomachine, comprising:
- a blade outer air seal that is biased toward a second part, wherein the blade outer air seal and the second part move together radially during operation, and the second part rotates relative to the blade outer air seal during operation of the turbomachine, wherein radial inward movement of the blade outer air seal is limited exclusively by the second part during operation, wherein the blade outer air seal is biased radially inward with a pressurized fluid;
- and
- a supporting structure comprising at least one circumferential seal,
- wherein the blade outer air seal is supported exclusively during operation with the at least one circumferential seal, or is supported exclusively during operation with the at least one circumferential seal together with at least one circumferentially adjacent blade outer air seal, the second part, or both.
1 more element
A blade outer air seal assembly of a turbomachine, comprising:
- a supporting structure;
- a blade outer air seal that is held axially by the supporting structure, wherein the blade outer air seal is biased radially away from the supporting structure during operation of the turbomachine;
- and
- at least one circumferential seal,
- wherein the blade outer air seal is supported exclusively during operation with the at least one circumferential seal, or is supported exclusively during operation with the at least one circumferential seal together with at least one circumferentially adjacent blade outer air seal, a blade, or both.
2 more elements
A method of controlling a blade outer air seal comprising,
- biasing a blade outer air seal toward a second part using a pressurized fluid;
- limiting the biasing exclusively with the second part;
- moving the blade outer air seal radially with the second part during operation of a turbomachine;
- and
- supporting the blade outer air seal during operation exclusively with at least one circumferential seal, or supporting the blade outer air seal during operation exclusively with the at least one circumferential seal together with at least one circumferentially adjacent blade outer air seal, the second part, or both.
2 more elements
Dependencies are inferred from the claim text.