Gas turbine engine systems involving hydrostatic face seals with integrated back-up seals
US8109717B2 · kind B2 · utility
20Cited by
17References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2007 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Dec 7, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/224
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Gas turbine engine systems involving hydrostatic face seals with back-up seals are provided. In this regard, a representative seal assembly for a gas turbine engine includes: a hydrostatic seal having a seal face and a seal runner; and a back-up seal; wherein, in a normal mode of operation of the hydrostatic seal, interaction of the seal face and the seal runner maintains a pressure differential within the gas turbine engine and, in a failure mode of operation of the hydrostatic seal, the back-up seal maintains a pressure differential within the gas turbine engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.