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Patent Searching and Data


Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/008744
Kind Code:
A1
Abstract:
In this refrigeration cycle device, a heating operation and a defrosting operation are performed. In the defrosting operation, a refrigerant is circulated in a direction reverse to the direction in which the refrigerant is circulated in the heating operation. The refrigeration cycle device is provided with a compressor, first and second heat exchangers, a depressurizing device, and a flow passage switching device. The flow passage switching device switches the circulation direction of the refrigerant. In the heating operation, the refrigerant is circulated in the order of the compressor, the first heat exchanger, the depressurizing device, and the second heat exchanger. In the defrosting operation, the refrigerant is circulated in the order of the compressor, the second heat exchanger, the depressurizing device, and the first heat exchanger. The defrosting operation includes first and second modes. The opening degree of the depressurizing device in the first mode is greater than the opening degree of the depressurizing device in the heating operation. The opening degree of the depressurizing device in the second mode is smaller than the opening degree of the depressurizing device in the first mode.

Inventors:
TANAKA, Chitose (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/024969
Publication Date:
January 10, 2019
Filing Date:
July 07, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F25B47/02; F25B1/00
Foreign References:
JPH02230058A1990-09-12
JP2016080330A2016-05-16
JP2012172890A2012-09-10
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Festival Tower West, 2-4 Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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