Screw compressor and chiller unit provided with same
US9803900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2016 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Oct 19, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screw compressor and a chiller unit are provided. An oil separator of the screw compressor may include an outer cylinder, an inner cylinder positioned inside the outer cylinder, and an introducing flow path. The upper end of the inner cylinder is held by the oil separator and the outer wall of the inner cylinder is held independently of the inner wall of the outer cylinder. The diameter of the inner wall of the outer cylinder may gradually be reduced along the swirl flow path. The refrigerant via the introducing passage swirls and goes down along the swirl flow path and is separated into gas refrigerant and oil. The separated gas refrigerant flows from the lower end of the inner cylinder into the inner cylinder and goes up, and the separated oil flows down along the inner wall surface of the outer cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.