Scroll machine with liquid injection
US6615598B1 · kind B1 · utility
16Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Mar 26, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C18/0215
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A refrigeration circuit includes a scroll compressor, a condenser and an evaporator connected in a closed loop. A liquid injection system takes liquid refrigerant from the refrigerant circuit and injects it into a suction line leading to the compressor to cool the refrigerant in the refrigeration circuit. An electronic control unit operates a controllable valve based on a temperature reading received from a discharge gas temperature sensor. The controllable valve can be an electronic expansion valve or a solenoid valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.