Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/166724
Kind Code:
A1
Abstract:
A refrigeration cycle device (100) is provided with a refrigerant circuit (110) and a control device (10) which controls the refrigerant circuit (110). The refrigerant circuit (110) is provided with: a compressor (1) which compresses a refrigerant; a condenser (3); a receiver (4) which stores excess refrigerant; an expansion valve (5) which decompresses the refrigerant; and an evaporator (6). The refrigerant circuit (110) is configured such that the refrigerant circulates through the compressor (1), the condenser (3), the receiver (4), the expansion valve (5), and the evaporator (6) in this order during a heating operation. When the liquid volume (MREC) in the receiver (4) has fallen below a preset default value (Mmin), the control device (10) controls the refrigerant circuit (110) such that the liquid volume (MREC) in the receiver (4) is increased by reducing the pressure in the evaporator (6).
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Inventors:
GYOTOKU SHUNYA (JP)
Application Number:
PCT/JP2022/009494
Publication Date:
September 07, 2023
Filing Date:
March 04, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00
Foreign References:
| JPH07218008A | 1995-08-18 | |||
| JP2011247504A | 2011-12-08 | |||
| JPH0735430A | 1995-02-07 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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