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US 10,370,999 B2Granted
Gas turbine engine rapid response clearance control system with air seal segment interface
AssigneeUnited Technologies Corporation
InventorsKen F. Blaney, Paul M. Lutjen, Brian R. Pelletier
Life of this patent
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Abstract
An active clearance control system of a gas turbine engine includes an air seal segment with a bridge hook having a lugged aperture.
Claims17
An active clearance control system for a gas turbine engine comprising:
- an air seal segment with a lugged aperture;
- and
- a puller with a multiple of circumferentially spaced lugs engageable with said lugged aperture, wherein the puller moves radially and radially moves said air seal segment,
- wherein said multiple of circumferentially spaced lugs each define a lug engagement surface engageable with a respective aperture engagement surface of said lugged aperture.
1 more element
An active clearance control system of a gas turbine engine comprising:
- an air seal segment with a bridge hook having a lugged aperture;
- and
- a puller with a multiple of circumferentially spaced lugs engageable with said lugged aperture,
- wherein the puller moves radially and radially moves said air seal segment,
- wherein said multiple of circumferentially spaced lugs each define a lug engagement surface engageable with a respective aperture engagement surface of said lugged aperture.
2 more elements
A method of active blade tip clearance control for a gas turbine engine, comprising:
- engaging a puller that includes a multiple of circumferentially spaced lugs with an air seal segment that includes a lugged aperture, wherein the puller moves radially and radially moves the air seal segment and said multiple of circumferentially spaced lugs each define a lug engagement surface engageable with a respective aperture engagement surface of said lugged aperture,
- inserting said multiple of circumferentially spaced lugs that extend from the puller into the lugged aperture;
- and
- rotating the puller to obtain a lugged contact interface that allows the air seal segment to move radially in response to radial movement of the puller.
1 more element
Dependencies are inferred from the claim text.