Brush seal
US4756536A · kind A · utility
109Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1987 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Oct 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/928
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brush seal operationally located between a rotatable shaft and static structure comprises a number of stages. The seal stage adjacent a region of low fluid pressure and its adjacent stage are spaced apart by an apertured ring. The apertures in the ring being so dimensioned as to vent pressurized fluid from the chamber and thereby reduce the magnitude of the pressure differential across the seal stage adjacent the region of low fluid pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.