Labyrinth seal for turbine dovetail
US8210821B2 · kind B2 · utility
2Cited by
20References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2008 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | May 3, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D11/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A labyrinth seal that may include a first leg positioned about a high-pressure side of the dovetail tab, a second leg positioned about a low-pressure side of the dovetail tab, and a labyrinth chamber positioned between the first leg and the second leg. High-pressure fluid passing through the gap about the first leg expands within the labyrinth chamber so as to limit an amount of the high-pressure fluid that passes beyond the second leg.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.