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Patent Searching and Data


Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/207619
Kind Code:
A1
Abstract:
This refrigeration cycle device is provided with: a refrigerant circuit in which a compressor, a condenser, an expansion valve, and an evaporator are connected in the stated order by refrigerant piping; and an expansion valve control unit that adjusts the opening degree of the expansion valve. The expansion valve control unit is configured so as to: store a first table in which there is defined a freezing performance in which the range of performance of the evaporator is quantified, as well as a relationship between the expansion valve opening degree and a plurality of types of refrigerant; and determine, on the basis of the first table, an optimal usage range from an upper limit to a lower limit of the expansion valve opening degree that correspond to the refrigerant used.

Inventors:
NAKAGAWA, Masahiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
ARII, Yusuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
SAIKUSA, Tetsuji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2018/016420
Publication Date:
October 31, 2019
Filing Date:
April 23, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F25B1/00
Foreign References:
JPH09229495A1997-09-05
JPH07190535A1995-07-28
JP2015132434A2015-07-23
JP2015117853A2015-06-25
JP2017161128A2017-09-14
JP2017141998A2017-08-17
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (East 8F, TORANOMON TWIN BLDG. 10-1 Toranomon 2-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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