Valve for adjusting the rate of flow of a gaseous fluid
US4500070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1982 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Aug 12, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K47/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Valve for adjusting the rate of flow of a gaseous fluid, comprising a valve body (1) having a side inlet (2) and an outlet (3), an obturator (10) movable in translation within a housing (4) and bearing on a seat (18) when the outlet (3) is shut off, said housing (4) being fastened within the body (1) by means (5) located externally of the fluid flow path. The mobile obturator (10) has a front part (9) in the form of a hollow cylinder surrounding with limited clearance a nose-piece (7) attached to the housing (4) by rigid arms within the housing (4). The front surface (17) of the nose-piece (7) extended by the front surface (16) of the obturator (10) and the front part (6) of the housing (4) are of an aerodynamic shape. Reduction of the effects of unsteady forces on the obturator across the full range of openings without head losses when fully open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.