Gas turbine engine bearing with fuel lubrication and cooling
US11181007B1 · kind B1 · utility
2Cited by
16References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Aug 19, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine with a bearing that is supplied with fuel and compressed air for both cooling and lubrication of the bearing. The bearing housing contains a serpentine flow cooling circuit with each leg formed from a plurality of parallel flow channels, and where fuel is supplied to the cooling circuit and then discharged into a combustor. Some of the fuel is also bled off and passed into the bearing compartment along with compressed air bled off from the compressor to both cool and lubricate the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.