Valve system and method
US9212751B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2012 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Apr 4, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86839
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A flow control valve includes a housing forming internal passages in fluid communication with a port of the valve, and an internal cavity. A flow direction block is disposed in the internal cavity and forms at least one flow passage extending through a portion thereof. The flow direction block is moveable within the internal cavity such that the free ends of the least one flow passage can be selectively aligned with a respective internal passage along an interface as the flow direction block is moved from a first, closed position to a second, open position. A seal is disposed around each interface and includes an internal face, which presses against an outer surface of the flow direction block, and an external face, which presses against the housing. Sealing function is improved, at least in part, by a differential fluid pressure that acts on the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.