Gas-turbine engine with a bearing chamber
US6516618B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Nov 20, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D25/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a gas-turbine engine which is provided in the turbine interior with a bearing chamber for a turbine shaft, the bearing chamber being sealed by sealing elements, and with a scavenge line for the lubricating oil which is supplied to the bearing chamber, in particular is sprayed onto the bearing(s) arranged therein. In accordance with the present invention, the single scavenge line, which is connected to a suitable lubricating-oil collecting compartment, features such an ample cross-section and the sealing elements have such a high sealing effect that the pressure in the bearing chamber is essentially equal to the pressure in the lubricating-oil-collecting compartment and maximally half the pressure in the turbine interior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.