High temperature shaft seal for bleed valve with roller bearings
US10215289B2 · kind B2 · utility
1Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2018 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Mar 27, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/57
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A seal assembly for a creating a seal between a shaft and a valve housing of a bleed valve that impedes contaminants from reaching bearings includes first and second seal pieces. The first seal piece circumferentially surrounds the shaft and is disposed between the shaft and the valve housing. The second seal piece is in contact with and is disposed axially adjacent to the first seal piece relative to the shaft. The second seal piece is biased against the first seal piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.