Invention Application
US20050220609A1 Ceramic-based bushing for a variable-pitch vane system in a turbomachine
有权
用于涡轮机中可变桨距叶片系统的陶瓷套管
- Patent Title: Ceramic-based bushing for a variable-pitch vane system in a turbomachine
- Patent Title (中): 用于涡轮机中可变桨距叶片系统的陶瓷套管
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Application No.: US11097289Application Date: 2005-04-04
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Publication No.: US20050220609A1Publication Date: 2005-10-06
- Inventor: Christelle Foucher , Claude Lejars , Didier Riby
- Applicant: Christelle Foucher , Claude Lejars , Didier Riby
- Applicant Address: FR Paris 75015
- Assignee: SNECMA MOTEURS
- Current Assignee: SNECMA MOTEURS
- Current Assignee Address: FR Paris 75015
- Priority: FR0403536 20040405
- Main IPC: F04D29/56
- IPC: F04D29/56 ; F01D17/16 ; F02C7/06 ; F16C33/04
Abstract:
The invention relates to a ceramic-based bushing for mounting in a turbomachine casing to provide a smooth bearing for a pivot of a variable-pitch vane. The bushing is constituted by a metal jacket and a ceramic ring secured to the inside wall of said jacket by brazing. The invention also provides a turbomachine compressor having variable-pitch stator vanes with pivots mounted in the casing by means of such bushings.
Public/Granted literature
- US07614846B2 Ceramic-based bushing for a variable-pitch vane system in a turbomachine Public/Granted day:2009-11-10
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