Brush seal device having a floating backplate
US5351971A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1993 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Jun 30, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3288
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brush seal device for sealing a high pressure area from a low pressure area. The brush seal device comprises an annular sideplate having a first side facing the high pressure area and a second side opposite the first side, an annular backplate having a first side facing the low pressure area and a second side opposite the first side, and a plurality of bristles between the second side of the sideplate and the second side of the backplate. The backplate is moveable in a radial direction relative to the annular sideplate and the plurality of bristles extend inwardly from an outer peripheral edge of the sideplate. The brush seal device further comprises a retaining washer between the first side of the backplate and the low pressure area, wherein the retaining washer includes a cavity proximate the first side of the backplate, the cavity having an adjustable pressure therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.