High-head multistage pump-turbine
US4589821A · kind A · utility
4Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1983 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Jun 6, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/91
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydrostatic bearing supplied with pressurized water positioned as a seal between the shaft of a pump-turbine and a suction bend adjacent the lower end of the shaft. The hydrostatic bearing replaces the conventional labyrinth joint usually located above the lower shaft bearing, and may additionally replace the lower bearing itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.