Title:
油分離器及び冷凍サイクル装置
Document Type and Number:
Japanese Patent JP6854916
Kind Code:
B2
Abstract:
An oil separator has a first pipe connected to a discharge port of a compressor, and a second pipe connected to a suction port of the compressor. In addition, the oil separator has a differential pressure generation mechanism that has a third pipe that connects the first pipe and the second pipe with each other and a filter portion located at a distal end of the third pipe at which the third pipe is connected to the first pipe, and is configured to generate a differential pressure between a pressure of high-pressure refrigerant that flows in the first pipe and a pressure of low-pressure refrigerant that flows in the second pipe. The oil separator further has an oil return mechanism that has an oil return port opened and formed downstream of a connection position at which the third pipe is connected to the first pipe and a portion of an oil return circuit that connects the first pipe and the second pipe with each other via the oil return port, and is configured to return, via the oil return port and the oil return circuit, lubricating oil included in the high-pressure refrigerant from the first pipe to the second pipe. The filter portion in the differential pressure generation mechanism is configured to collect, by the differential pressure, the lubricating oil that is in a form of mist included in the high-pressure refrigerant. The first pipe allows the collected lubricating oil to move downstream along an internal wall of the first pipe.
Inventors:
Kato Hayao
Ishiyama Souki
Yusuke Shimazu
Daisuke Ito
Ishiyama Souki
Yusuke Shimazu
Daisuke Ito
Application Number:
JP2019554100A
Publication Date:
April 07, 2021
Filing Date:
November 15, 2017
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F25B43/02; F25B1/00
Domestic Patent References:
| JP11248297A | ||||
| JP56170664U | ||||
| JP200492933A | ||||
| JP2005172318A |
Foreign References:
| WO2014083674A1 | ||||
| WO2016063400A1 |
Attorney, Agent or Firm:
Patent Business Corporation Kisa Patent Trademark Office