Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/044149
Kind Code:
A1
Abstract:
This refrigeration cycle device comprises: a refrigerant circulation circuit that is configured by a compressor having a compression chamber for compressing refrigerant and an injection channel leading to the compression chamber, a condenser, a decompression device, and an evaporator being sequentially connected by piping; an injection circuit that is branched off from the refrigerant circulation circuit between the condenser and the decompression device and connected to the injection channel; a flow rate adjustment device that is installed in the injection circuit or the injection channel; and a control device that controls the flow rate adjustment device. The control device controls the flow rate adjustment device to supply refrigerant liquid to the compression chamber through the injection circuit and the injection channel when the compressor starts regardless of the discharge temperature of the refrigerant discharged from the compressor, until the compressor reaches a preset operating capacity or until a preset time has elapsed after the compressor starts.
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Inventors:
OKADA SHUN (JP)
KAMIKAWA MASAAKI (JP)
KANDA MASAHIRO (JP)
KAMIKAWA MASAAKI (JP)
KANDA MASAHIRO (JP)
Application Number:
PCT/JP2020/032117
Publication Date:
March 03, 2022
Filing Date:
August 26, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00
Domestic Patent References:
| WO2016084176A1 | 2016-06-02 |
Foreign References:
| JPH0821665A | 1996-01-23 | |||
| JPH06337174A | 1994-12-06 | |||
| JPH01305267A | 1989-12-08 | |||
| JP2987951B2 | 1999-12-06 | |||
| JP2005282972A | 2005-10-13 | |||
| JPH0151745B2 | 1989-11-06 | |||
| JPH05106572A | 1993-04-27 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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