Invention Grant
- Patent Title: Damping device for turbomachine stator
- Patent Title (中): 涡轮机定子阻尼装置
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Application No.: US12144960Application Date: 2008-06-24
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Publication No.: US08147191B2Publication Date: 2012-04-03
- Inventor: Stephane Jean Joseph Baumhauer , Jerome Alain Dupeux , Francois Maurice Garcin , Jean-Pierre Francois Lombard
- Applicant: Stephane Jean Joseph Baumhauer , Jerome Alain Dupeux , Francois Maurice Garcin , Jean-Pierre Francois Lombard
- Applicant Address: FR Paris
- Assignee: SNECMA
- Current Assignee: SNECMA
- Current Assignee Address: FR Paris
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0704580 20070626
- Main IPC: F01D9/04
- IPC: F01D9/04

Abstract:
A turbomachine stator forming a stator vane ring or upstream guide vane element including a plurality of vanes placed radially between a first inner ring and a second outer ring is disclosed. The two rings are concentric and the second ring has a cylindrical outer surface portion. The stator is characterized in that, on the outer surface portion, at least one vibration-damping laminate is attached. The laminate includes at least one layer of viscoelastic material in contact with the surface portion and one counterlayer of rigid material.
Public/Granted literature
- US20090004000A1 DAMPING DEVICE FOR TURBOMACHINE STATOR Public/Granted day:2009-01-01
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