Sealing system device
US9297377B2 · kind B2 · utility
2Cited by
15References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2007 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Sep 15, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a dynamic sealing system device for a submerged pump comprising at least one feed line running in towards the dynamic sealing system, with a first valve device arranged in the feed line and a second valve device arranged such that in an open position it opens a first bypass line that runs from a point on the feed line between the first valve device and the pump and a low-pressure source at the pump to reduce the pressure in a barrier fluid in the sealing system. The invention also comprises a method for reducing the barrier fluid pressure for a submerged pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.