Oil pressure maintenance for screw compressor
US5134856A · kind A · utility
12Cited by
10References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1991 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | May 21, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S418/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressurized supply of oil for lubrication and other purposes for a helical screw compressor is automatically and continuously maintained in an oil separator in the compressor discharge line by a check valve assembly which is controlled by the pressure differential between the compressor inlet and the condenser, a bypass around the valve's control element permitting equalization of pressure on its opposite sides to permit closing by a biasing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.