Control valve for fluid actuated device
US4310024A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1980 |
| Grant date | Jan 12, 1982 |
| Priority date | — |
| Expiry date | Jun 23, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86638
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control valve comprised of a stator defining a discoidal chamber enclosing a star-shaped rotor, enclosures being defined between supply arms and discharge arms of the rotor respectively moving in front of fluid supply apertures and fluid discharge apertures and defining with said chamber variable supply passages and variable discharge passages, wherein the improvement consists of intermediate arms between each couple of supply and discharge arms, dividing the enclosure into two cavities, said intermediate arm cooperating and/or defining intermediate ports for variable communication between both cavities, one of which for providing pressure and the other for providing modulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.