Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/201361
Kind Code:
A1
Abstract:
This refrigeration cycle device comprises a main flow path for refrigerant, a compressor, a condenser, an evaporator, a branch path through which some of the refrigerant flowing form the condenser to the evaporator branches from the main flow path at a location downstream of the condenser, an expansion valve that adjusts the flow rate of the refrigerant flowing through the branch path, a supercooling heat exchanger that carries out heat exchange between the refrigerant flowing through the branch path via the expansion valve and the refrigerant flowing through the main flow path downstream of the condenser, an injection flow path through which the branch-flow-side refrigerant flowing out from the supercooling heat exchanger is injected into the compressor, and a control unit. The control unit: determines a determination condition for adjusting the opening degree of the expansion valve; and adjusts the opening degree of the expansion valve, in accordance with whether the determination condition is met, on the basis of either a first target value pertaining to the discharge temperature of the refrigerant discharged from the compressor or a second target value pertaining to the superheating temperature of the refrigerant flowing through the injection flow path.
Inventors:
MARUKO KOHEI (JP)
ARITA SHOHEI (JP)
SATO MASAAKI (JP)
YAMAGUCHI HIROICHI (JP)
BABA ATSUSHI (JP)
KIGUCHI YUKIO (JP)
ARITA SHOHEI (JP)
SATO MASAAKI (JP)
YAMAGUCHI HIROICHI (JP)
BABA ATSUSHI (JP)
KIGUCHI YUKIO (JP)
Application Number:
PCT/JP2021/012250
Publication Date:
September 29, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
TOSHIBA CARRIER CORP (JP)
International Classes:
F25B1/00
Foreign References:
| JP2017026238A | 2017-02-02 | |||
| JP2019190409A | 2019-10-31 | |||
| JP2013155992A | 2013-08-15 | |||
| JP2017026238A | 2017-02-02 |
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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