Invention Grant
- Patent Title: Tip clearance control for gas turbine engine
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Application No.: US15589009Application Date: 2017-05-08
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Publication No.: US10794214B2Publication Date: 2020-10-06
- Inventor: Gabriel L. Suciu , Mark F. Zelesky , Ioannis Alvanos , Brian Merry
- Applicant: UNITED TECHNOLOGIES CORPORATION
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D11/24
- IPC: F01D11/24 ; F01D25/24

Abstract:
A clearance control system for a gas turbine engine comprises at least one case support associated with an engine case defining an engine center axis. A clearance control ring is positioned adjacent the at least one case support to form an internal cavity between the engine case and the clearance control ring. The clearance control ring includes a first mount feature. An outer air seal has a second mount feature cooperating with the first mount feature such that the clearance control ring can move independently of the engine case in response to changes in temperature. An injection source inject flow into the internal cavity to control a temperature of the clearance control ring to allow the outer air seal to move in a desired direction to maintain a desired clearance between the outer air seal and an engine component. A gas turbine engine and a method of controlling tip clearance in a gas turbine engine are also disclosed.
Public/Granted literature
- US20180320542A1 TIP CLEARANCE CONTROL FOR GAS TURBINE ENGINE Public/Granted day:2018-11-08
Information query
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