Compact control mechanism for axial motion control valves in helical screw compressors
US6739853B1 · kind B1 · utility
10Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Dec 5, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2587
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An axial slide valve is provided with an axially extending fluid chamber at each end with one chamber receiving a spring and being acted on by suction pressure and the other chamber coacting with a fixed piston and being acted upon by discharge pressure or the like whereby the slide valve is positioned so as to balance the spring and fluid pressures and thereby the compressor capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.