Control valve
US5647394A · kind A · utility
3Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1996 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Jul 29, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88046
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A control valve is disclosed, having a housing which has an input port and an output port that are connected to one another by a flow path in which a throttling device is arranged. It is desirable for such a control valve to be able to hold a volume flow constant, irrespective of the load pressure at the output port. For that purpose, the throttling device comprises a series connection of a first throttle, the passage of which is externally adjustable, and a second throttle, the passage of which is adjustable in dependence on pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.