Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/042588
Kind Code:
A1
Abstract:
The present invention comprises: a refrigerant valve (30, 31, 32) having a first connection port (30a, 31a, 32a) to which a first heat exchanger (12, 18) is connected, a second connection port (30b, 31b, 32b) to which the inlet side of a gas-liquid separator (15) is connected, a third connection port (30c, 31c, 32c) to which a refrigerant passage is connected, and a valve element (302, 312, 322) that switches the communication state of the first connection port, the second connection port, and the third connection port and decompresses a refrigerant; and a control unit (50) that switches between a first operation mode in which the refrigerant is condensed in the first heat exchanger and then flows into the gas-liquid separator through the refrigerant valve and a second operation mode in which the refrigerant is condensed in the first heat exchanger and then flows out of the third connection port through the refrigerant valve, and controls the refrigerant valve so that, in the first operation mode, the supercooling degree of the refrigerant condensed in the first heat exchanger approaches a target supercooling degree and, in the second operation mode, the pressure, temperature or flow rate of the refrigerant approaches a target value.
Inventors:
ENOMOTO NORIHIKO (JP)
KATO DAIKI (JP)
KAMI YUICHI (JP)
INABA ATSUSHI (JP)
KATO DAIKI (JP)
KAMI YUICHI (JP)
INABA ATSUSHI (JP)
Application Number:
PCT/JP2022/030741
Publication Date:
March 23, 2023
Filing Date:
August 12, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F25B6/04; F25B1/00; F25B41/26; F25B43/00
Foreign References:
| JP2017138028A | 2017-08-10 | |||
| JP2011058749A | 2011-03-24 | |||
| JP2017115666A | 2017-06-29 |
Attorney, Agent or Firm:
KAI-SEI PATENT FIRM (JP)
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