- 专利标题: Active multi-effector control of high pressure turbine clearances
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申请号: US16388227申请日: 2019-04-18
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公开(公告)号: US11473510B2公开(公告)日: 2022-10-18
- 发明人: Joseph Kehoe , Richard P. Meisner , Manuj Dhingra , Patrick D. Couture , Matthew R. Feulner , Brenda J. Lisitano , Christopher L. Ho
- 申请人: United Technologies Corporation
- 申请人地址: US CT Farmington
- 专利权人: United Technologies Corporation
- 当前专利权人: United Technologies Corporation
- 当前专利权人地址: US CT Farmington
- 代理机构: Cantor Colburn LLP
- 主分类号: F02C9/54
- IPC分类号: F02C9/54 ; F01D11/24 ; F02C9/20 ; F01D11/20 ; F01D11/22
摘要:
A method of operating a gas turbine engine includes commanding an acceleration of the gas turbine engine and moving a variable pitch high pressure compressor vane toward an open position thereby reducing an acceleration rate of a high pressure turbine rotor thereby reducing a change in a clearance gap between the high pressure turbine rotor and a blade outer airseal. An active clearance control system of a gas turbine engine includes an engine control system configured to command an acceleration of the gas turbine engine and move a variable pitch high pressure compressor vane toward an open position thereby slowing an acceleration rate of a high pressure turbine rotor thereby reducing a change in a clearance gap between the high pressure turbine rotor and a blade outer airseal located radially outboard of the high pressure turbine rotor.
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