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Title:
AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/138594
Kind Code:
A1
Abstract:
An air-conditioning device provided with a refrigerant circuit in which a compressor, a condenser, an expansion unit, and an evaporator are connected by piping, and in which flows a working fluid wherein a stabilizing agent has been added to a mixed refrigerant containing CF3I. The piping includes a rising gas pipe, which runs from the outlet side of the evaporator to the inlet side of the condenser via the compressor, and rises. The inner diameter of the rising gas pipe is no greater than an upper limit threshold value D1 obtained from formula (1).

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Inventors:
NISHIO, Jun (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
IKEDA, Soshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
NAKAO, Hideto (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
ISHIMURA, Katsuhiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2018/022405
Publication Date:
July 18, 2019
Filing Date:
June 12, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F25B41/00; C09K5/04; F24F1/26; F25B1/00
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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