Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/176697
Kind Code:
A1
Abstract:
Provided is a refrigeration cycle device that uses a non-azeotropic refrigerant mixture and is able to suppress the formation of frost on an evaporator. This refrigeration cycle comprises an air conditioner (1) that is equipped with a refrigerant circuit (2) in which a compressor (12), an indoor heat exchanger (7), an expansion valve (14), and an outdoor heat exchanger (13) are sequentially connected, and in which a non-azeotropic refrigerant mixture circulates, and has: a bypass line (17) connected in parallel to a liquid-side pipe (16) connecting the outflow side of the indoor heat exchanger (7) and the inflow side of the outdoor heat exchanger (13); a receiver (22) provided in the bypass line (17); a first flow rate adjustment valve (20) and a second flow rate adjustment valve (21) for adjusting the amount of refrigerant flowing into the receiver (22); and a control unit (3) for controlling the expansion valve (14), the first flow rate adjustment valve (20), and the second flow rate adjustment valve (21). The control unit (3) controls the first flow rate adjustment valve (20) and the second flow rate adjustment valve (21) on the basis of a refrigerant inlet temperature, and adjusts the amount of liquid refrigerant flowing into the outdoor heat exchanger (13).
Inventors:
HIROSAKI YU (JP)
Application Number:
PCT/JP2023/009143
Publication Date:
September 21, 2023
Filing Date:
March 09, 2023
Export Citation:
Assignee:
FUJITSU GENERAL LTD (JP)
International Classes:
F25B1/00; F25B41/20; F25B43/00; F25B47/00
Domestic Patent References:
| WO2020008916A1 | 2020-01-09 |
Foreign References:
| JP2018021721A | 2018-02-08 | |||
| JP2017172908A | 2017-09-28 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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