Fluid control valve
US4326554A · kind A · utility
17Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1979 |
| Grant date | Apr 27, 1982 |
| Priority date | — |
| Expiry date | Dec 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88054
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid control valve which avoids wear, cavitation, and high noise level operation and yet is substantially nonclogging. The valve includes a valve nozzle means having at least one preloaded member biased so as to close the valve nozzle means below a preselected incoming fluid pressure. Incoming fluid is spun tangentially within an annular whirl chamber, and then passed through a labyrinth passageway comprising a series of inwardly spaced concentric sleevelike annuli. The concentric sleevelike annuli are so constructed that they may be inserted into a pre-existing plug valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.