Solenoid valve
US5704395A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86622
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A 2-position 3-way solenoid valve provided with one plunger and ports arranged in a half portion of the valve in its longitudinal direction is disclosed. The valve includes a valve body having a base with first and second ports and open and closed ends, a housing being hermetically coupled to the base and having a third port, and a cover for closing an end of the housing, the valve body having a chamber therein. The first and second ports are directly communicated with the chamber, and the third port is communicated with the chamber through a flow passage extending to the cover from the housing. A hollow cylindrical sleeve is disposed within the valve body, extending from the housing to the base. A plunger having balls each fixed at both ends thereof is movably disposed within the chamber. On the circumference of the plunger, a plurality of grooves are formed in its longitudinal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.