Seal arrangement for a rotary machine such as a turbine
US6367806B1 · kind B1 · utility
13Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/442
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seal arrangement for a rotary machine, such as a turbine, includes a main seal segment such as a labyrinth seal segment, a brush seal segment disposed in a slot in the main seal segment and having a layer of bristles secured between upstream and downstream plates of the brush seal segment, and at least one passage radially formed through the main seal segment to communicate a balancing pressure from a pressure source located exteriorly of an outer periphery of the main seal segment to a cavity defined in the downstream plate of the brush seal segment at a downstream side of the layer of bristles of the brush seal segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.