Gas turbine engine systems involving hydrostatic face seals with integrated back-up seals
US8105021B2 · kind B2 · utility
12Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2007 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Aug 3, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/4472
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Gas turbine engine systems involving hydrostatic face seals with integrated back-up seals are provided. In this regard, a representative seal assembly for a gas turbine engine includes: a stator assembly and a rotor assembly configured to operatively engage each other to form a first seal and a second seal; the first seal being provided by a hydrostatic seal having a seal face and a seal runner; and the second seal being provided by a back-up seal such that responsive to a failure of the first seal, the back-up seal maintains at least a portion of a pressure differential established by the first seal prior to the failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.