Capacity control valve
US9132714B2 · kind B2 · utility
32Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2011 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Dec 5, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A capacity control valve for increasing the ability to drain liquid refrigerant from a control chamber during startup of a variable-capacity compressor without changing the control valve characteristics has a spring acting in the direction of valve opening provided between an adapter and a free end of a pressure-sensitive body in the extension and contraction direction thereof and having an annular seat surface, and a third valve part having an annular engaging surface for opening and closing a suction-side passage by engaging and disengaging with the seat surface of the adapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.