Single pilot dual pulse spool valve
US6527010B1 · kind B1 · utility
8Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Oct 15, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8663
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spool valve may be used in a subsea system with a single upstream pilot valve to control the spool valve. The spool valve opens and closes a main valve in response to fluid signals from the pilot valve. The main valve is connected to a source of pressurized supply fluid, which is selectively directed to a downstream apparatus. The spool valve and the main valve can be produced in an integrated design with a single body. In an alternative embodiment, the spool valve and main valve are separate with separate bodies. The spool valve may also be used in non-subsea systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.