Brush seal
US5799952A · kind A · utility
60Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Nov 27, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/926
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brush seal element (14) comprises a mounting ring (20) that carries radially inwardly directed bristles (21). A backing ring (23) attached to the mounting ring (20) is positioned alongside the bristles (21). A chamber (25) defined by the bristles (21) and the backing ring (23) is pressurised with fluid to counteract the lateral forces imposed upon the bristles (21) by a region of high fluid pressure that they are operationally adjacent. As a result of this balancing of forces the bristles (21) are free to move radially inward and outward so that their free ends (22) remain in sealing engagement with an adjacent surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.