Seal system for a turbomachine employing working fluid in its liquid phase as the sealing fluid
US4189156A · kind A · utility
18Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1978 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | Jun 8, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A seal system for a turbomachine employing first fluid as a working medium and utilizing the same fluid in its liquid phase as a sealing medium. The pressure of the liquid sealing medium is maintained above the pressure of the working medium. The fluid is delivered to a first sealing region whereat the fluid flows in opposite directions along the shaft of the turbomachine, respectively towards the ambient and towards the working region in the machine. A seal is interposed between the first sealing region and the ambient to prevent the seal fluid from intermixing with air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.