Brush seal arrangement for high pressure applications
US6790001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Nov 22, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/56
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a steam turbine high pressure end seal region, brush seals are provided between first and second pressure regions having a pressure drop in excess of the sealing capacity of an individual brush seal. To use brush seals between the first and second regions, one or more intermediate pressure regions are maintained at a substantially fixed predetermined pressure between the first and second pressure regions. Brush seals are interposed between adjacent pressure regions whereby the pressure drop between adjacent pressure regions is within the sealing capacity of the individual brush seal disposed between the adjacent pressure regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.