Oil management for micro booster supermarket refrigeration system
US10634424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | May 24, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/62
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A refrigeration system includes first and second compressors and an oil separator. The oil separator includes an inlet for receiving refrigerant and oil from the first compressor, a refrigerant outlet, and an oil outlet. The oil separator separates the oil from the refrigerant. A portion of the oil separator below a horizontal plane intersecting the refrigerant outlet collects separated oil and has a volume equal to a first compressor oil supply. The first compressor oil supply is greater than or equal to 100% and less than or equal to 250% of a first compressor initial oil charge. The first compressor receives oil from the oil outlet when an amount of oil in the portion is less than or equal to the first compressor oil supply. The second compressor receives oil from the refrigerant outlet when the amount of oil in the portion is greater than the first compressor oil supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.