Thermomechanical part constituting a body of revolution about a longitudinal axis and including at least one abradable ring for a sealing labyrinth
US8128352B2 · kind B2 · utility
1Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2009 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Jul 10, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/445
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.