Fluid flow control device
US5803119A · kind A · utility
52Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1997 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Aug 21, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86791
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid flow control device, sometimes called a variable fluid restrictor control valve or severe service control valve. These valves employ a moveable plug and are used to control high pressure fluids e.g. superheated steam. The valve of the invention provides axial flow passageways for the fluid, which have right-angled turns. The passageways are either on the radially outer surface of the plug or within an annular sleeve through which the plug is moveable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.