Invention Grant
US09562441B2 Turbo machine with a device for preventing a segment of nozzle guide vanes assembly from rotating in a casing; rotation-proofing peg
有权
具有用于防止喷嘴导向叶片组件的一部分在壳体中旋转的装置的涡轮机; 防旋转钉
- Patent Title: Turbo machine with a device for preventing a segment of nozzle guide vanes assembly from rotating in a casing; rotation-proofing peg
- Patent Title (中): 具有用于防止喷嘴导向叶片组件的一部分在壳体中旋转的装置的涡轮机; 防旋转钉
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Application No.: US13700641Application Date: 2011-05-31
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Publication No.: US09562441B2Publication Date: 2017-02-07
- Inventor: Thierry Michel Breugnot , Didier Noel Durand , Florence Irene Noelle Leutard
- Applicant: Thierry Michel Breugnot , Didier Noel Durand , Florence Irene Noelle Leutard
- Applicant Address: FR Paris
- Assignee: SNECMA
- Current Assignee: SNECMA
- Current Assignee Address: FR Paris
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR1054263 20100601
- International Application: PCT/FR2011/051251 WO 20110531
- International Announcement: WO2011/151596 WO 20111208
- Main IPC: F01D25/08
- IPC: F01D25/08 ; F01D25/24
Abstract:
A device for preventing rotation of a segment of nozzle guide vanes assembly in a form of an annulus sector housed inside an annular casing of a turbo machine with interposing of a heat shield sheet between an internal wall of the casing and an external wall of the segment of nozzle guide vanes assembly, the device including a rotation-proofing peg fitted both into a notch formed in the segment of nozzle guide vanes assembly and in a housing formed in the casing, the heat shield sheet including a tab resting against the rotation-proofing peg. A surface portion radially between the tab and the internal wall of the casing forms an end stop in event of a possible radial movement of the heat shield sheet while the turbo machine is in operation.
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