Depressurization device for the bearing lubricating chambers of a turbomachine
US5429208A · kind A · utility
31Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1994 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | May 25, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/601
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A depressurization device for the lubrication chambers which surround the bearings of a turbomachine comprises venting ducts which communicate the lubrication chambers with the outside, and is provided with an auxiliary pumping mechanism which is arranged to be operated, when required, by way of an external pressure source. Preferably the venting ducts are provided with an air/lubricant separator and the auxiliary pumping mechanism comprises a jet nozzle which is located in the air exhaust duct from the separator, the external pressure source being the compressor of another turbomachine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.