Hybrid honeycomb and brush seal for steam gland
US6827350B2 · kind B2 · utility
10Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/56
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A steam gland includes a steam inlet scroll and an extraction scroll axially spaced from one another defining high and low pressure regions. A seal body is disposed between the regions and includes a pair of brush seals axially spaced from one another. Intermediate the brush seals is a honeycomb seal. The hybrid brush seal/honeycomb seal combination minimizes steam leakage between the high and low pressure regions and eliminates the possibility of heat induced damage to the rotor while optimizing seal leakage performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.