Invention Grant
- Patent Title: Thermomechanical part constituting a body of revolution about a longitudinal axis and including at least one abradable ring for a sealing labyrinth
- Patent Title (中): 热机械部件围绕纵向轴线构成旋转体，并且包括用于密封迷宫的至少一个耐磨环
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Application No.: US12428858Application Date: 2009-04-23
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Publication No.: US08128352B2Publication Date: 2012-03-06
- Inventor: Mathieu Caucheteux , Francois Maurice Garcin , Jean-Pierre Francois Lombard , Nicolas Christian Triconnet
- Applicant: Mathieu Caucheteux , Francois Maurice Garcin , Jean-Pierre Francois Lombard , Nicolas Christian Triconnet
- Applicant Address: FR Paris
- Assignee: SNECMA
- Current Assignee: SNECMA
- Current Assignee Address: FR Paris
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0852718 20080423
- Main IPC: F01D5/20
- IPC: F01D5/20 ; F01D11/08 ; F04D29/08 ; F04D29/18
Abstract:
The invention relates to a turbomachine thermomechanical part forming a body of revolution about a longitudinal axis, and including at least one abradable ring for a labyrinth seal. In characteristic manner, the abradable ring is made up of angular sectors that present different stiffnesses between adjacent pairs of sectors. The invention is applicable to a compressor, a turbine, or to a rotor and stator assembly.
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