Flow control valve
US7958908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2006 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Mar 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86678
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A capacity control valve, comprising a first valve chamber formed in a valve body, a first fluid passage communicating with the first valve chamber to flow a fluid with a discharge pressure therein, a valve seat formed around a valve port between the first valve chamber and the first fluid passage, a second fluid passage communicating with the first valve chamber to flow the fluid with the discharge pressure therefrom, a second valve chamber communicating with the first valve chamber through a guide hole, a third fluid passage communicating with the second valve chamber to flow the fluid with a suction pressure therein and therefrom, a valve element disposed in the first valve chamber and having a valve part separated from and brought into contact with the valve seat to flow the fluid with the discharge pressure therein and a stem part movably fitted to the guide hole, and a solenoid having a solenoid rod connected to the connection face of the valve element and moving the solenoid rod with a current, A discharge pressure receiving area in a connection surface between the valve part and the valve seat is set larger than the pressure receiving area of the stem part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.