Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/087346
Kind Code:
A1
Abstract:
Provided is a refrigeration cycle device wherein a refrigerant is circulated in order through a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger during heating operation. A first valve is connected between the compressor and the first heat exchanger. A second valve is connected between the first heat exchanger and the expansion valve. A control device closes the first and second valves when a condition to stop the heating operation has been satisfied. The control device opens the first and second valves (S12) after the supply of refrigerant to the first valve from the compressor begins when a condition to start the heating operation (S11) is satisfied and a specific condition is satisfied. The specific condition is a condition indicating that the first heat exchanging capacity of the first heat exchanger is greater than the second heat exchanging capacity of the second heat exchanger. When the condition to start the heating operation is satisfied and the specific condition has not been satisfied, the control device begins the supply of refrigerant to the first valve from the compressor (S13) after the first and second valves are opened.
Inventors:
HATANAKA KENSAKU (JP)
Application Number:
PCT/JP2017/039682
Publication Date:
May 09, 2019
Filing Date:
November 02, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00
Foreign References:
| JP2012167860A | 2012-09-06 | |||
| JP2000179958A | 2000-06-30 | |||
| JP2012167860A | 2012-09-06 |
Other References:
See also references of EP 3705807A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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