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Title:
HEAT EXCHANGER, REFRIGERATION CYCLE DEVICE, AND METHOD FOR MANUFACTURING HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2019/111349
Kind Code:
A1
Abstract:
A heat exchanger relating to the present invention has: a first pipe, in which a first heat medium flows; and a second pipe, which is wound around the first pipe, and in which a second heat medium flows. The first pipe has, on the inner surface thereof, a plurality of protrusions, which are formed in spiral lines in the direction in which the first heat medium flows in the first pipe, and the protrusions formed in each line are disposed at unequal intervals.

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Inventors:
MURATA, Kenta (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
KOIDE, Toru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
HATANAKA, Kensaku (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
KAWAI, Takahiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
OTA, Toshiaki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/043818
Publication Date:
June 13, 2019
Filing Date:
December 06, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F28F1/40; B21D53/06; F28D7/02; F28F13/12
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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