Recirculation valve
US10316713B2 · kind B2 · utility
1Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2016 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Oct 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D16/2093
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A recirculation valve for a pump having a regulator spool, a first resilient biasing member and a control valve. The first resilient biasing member biases the regulator spool in a first position in which flow of a liquid from a first port of the pump to a second port of the pump is prevented. The control valve controls the force required to move the regulator spool against the first resilient biasing member to a second position in which flow of the liquid from the first port to the second port is enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.