Gas turbine engine lubrication fluid barrier
US9217336B2 · kind B2 · utility
2Cited by
25References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2012 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Aug 17, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49229
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for forming a barrier between a lubrication oil region and an air region of a gas turbine engine comprising a lubrication oil return path, a centrifugal oil slinger on a rotating member fixed to a spool of the gas turbine engine, a spiral groove configured to direct lubrication oil toward an oil return path, a labyrinth seal, and a cavity configured to form a non-contacting seal with the spiral groove and the labyrinth seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.