Screw compressor and chiller unit provided with same
US9568003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2013 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Jul 10, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screw compressor is disclosed, which includes a male rotor and a female rotor and an oil separator. The oil separator includes an outer cylinder, an inner cylinder located inside the outer cylinder, and an introducing flow path. An upper end portion of the inner cylinder is held by the oil separator and an outer wall of the inner cylinder is held independently of the inner wall of the outer cylinder. A diameter of an inner wall of the outer cylinder is configured so that the diameter is gradually reduced along a swirl flow path. Moreover, refrigerant that flowed in swirls and goes down along the swirl flow path. The separated gas refrigerant flows from a lower end portion of the inner cylinder into the inner cylinder and goes up and the separated oil flowing down along the inner wall surface of the outer cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.