Compact pin-within-a-sleeve three-way valve
US5497806A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 22, 1994 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Aug 22, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8667
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A three-way valve including a valve housing having a valve chamber and a high pressure fluid supply inlet, high pressure fluid outlet and drain communicating with the valve chamber is disclosed. A movable member is reciprocally received in the valve chamber so as to be reciprocated between first and second positions for selectively fluidically communicating the outlet with either the inlet or drain. A first valve seat is formed in the valve housing and concentrically disposed in the valve chamber for sealing communication between the outlet and drain and a second valve seat is concentrically disposed in a cavity formed in the movable member for sealing communication between the inlet and outlet. A floating pin is received in the movable valve member cavity at a one end of the movable valve member and cooperates with the second valve seat for selectively sealing fluidic communication between the inlet and the outlet. An actuating device is mounted on the valve housing adjacent an end of the movable valve member opposite the floating pin for advancing the movable valve member toward the first position when energized and for allowing the movable valve member to retract to the second p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.