Oil free screw expander-compressor
US6644045B1 · kind B1 · utility
13Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2002 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Jun 25, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B11/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The expansion device in a refrigeration or air conditioning system is an expressor. The expresser is made up of a twin screw expander and a twin screw compressor with rotors of the expander functioning as timing gears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.