Title:
REFRIGERATION CYCLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/009881
Kind Code:
A1
Abstract:
This refrigeration cycle system comprises: a detection means for detecting a relevant physical quantity, which is a physical quantity relating to the state of a refrigerant circuit; and a control means for executing a circuit state determination mode after starting a compressor and before starting a normal operation mode in which the refrigeration cycle operation by the refrigerant circuit is performed. The control means switches from the circuit state determination mode to the normal operation mode if a first comparison value CQ1 obtained by comparing a first detection value PQ1, which is the value of the relevant physical quantity at the point in time at which a first time has elapsed from the start time of the circuit state determination mode, and a second detection value PQ2, which is the value of the relevant physical quantity at the point in time at which a second time longer than the first time has elapsed from the start time, is smaller than a normal determination value A. Otherwise, the circuit state determination mode is continued.
Inventors:
HIROSAKI HIROKI (JP)
Application Number:
PCT/JP2019/028150
Publication Date:
January 21, 2021
Filing Date:
July 17, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F25B49/02
Foreign References:
| JP2019032089A | 2019-02-28 | |||
| JP2000120495A | 2000-04-25 | |||
| JPH0678596A | 1994-03-18 | |||
| JP2007155226A | 2007-06-21 | |||
| JP2003254645A | 2003-09-10 | |||
| JPH0979709A | 1997-03-28 | |||
| JP2009058197A | 2009-03-19 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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