Flow compensated control valve
US7325747B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2004 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Jan 6, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86879
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid control system includes a valve and a restrictor. The valve is configured to regulate the proportion at which a first fluid and a second fluid are mixed together. Based on the pressure drop across the restrictor, the valve further regulates the overall flow rate of the mixed first and second fluids. In one form, the valve includes a pair of spools that regulate the proportion and flow rate of the fluids. In another form, the valve includes a thermostatic element that regulate the proportion at which the first and second fluids are mixed together so as to control the temperature of the mixed fluids. The valve in a further form incorporates a pair of diaphragm valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.