Forced oil cooling for refrigeration compressor
US6145326A · kind A · utility
6Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1999 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Apr 29, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2500/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention is a method and apparatus for cooling compressor oil in a refrigeration system by passing the oil through a heat exchanger cooled by evaporating refrigerant. The refrigerant is pumped into the heat exchanger by a liquid refrigerant pump. The use of the pump avoids the requirement of a mixing pipe with an internal venturi nozzle, while also providing oil-cooling that is relatively free of noise and disturbance to those in the vicinity of the refrigeration unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.