Oil balancing apparatus and refrigeration device
US9657975B2 · kind B2 · utility
0Cited by
18References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2013 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Aug 30, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/075
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the present invention provides an oil balancing apparatus, applied to at least three compressors connected in parallel. The oil balancing apparatus includes a first oil balancing pipe and a second oil balancing pipe. The first oil balancing pipe connects oil sumps of all the compressors, and the second oil balancing pipe only connects oil sumps of oil-rich compressors but not an oil sump of an oil-starved compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.