Cooling system for a rotary screw compressor
US7334428B2 · kind B2 · utility
12Cited by
12References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Mar 7, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/141
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor system has a compression stage, a coolant circuit and a refrigerant circuit. The compression stage compresses ambient air and generates compressed air and heat. A coolant removes heat from the compression stage and the heat is transferred from the coolant to a refrigerant. A refrigerant expansion device is incorporated into the refrigerant circuit. The expansion device expands the pressurized refrigerant utilizing a rotary expander. Energy generated during refrigerant expansion is captured and used to drive components of the cooling system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.