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Patent Searching and Data


Title:
FLAT MULTI-HOLE TUBE, HEAT EXCHANGER, AND METHOD FOR MANUFACTURING HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2019/203115
Kind Code:
A1
Abstract:
The purpose of the present invention is: to provide a flat multi-hole tube in which a desired cross-sectional shape is formed after a tube expansion process, and which is closely bonded to a fin plate row without any gaps therebetween; and to provide a heat exchanger in which there is improved close bonding and high heat-transfer performance between the flat multi-hole tube and the fin plate, as well as a method for manufacturing the heat exchanger. A flat multi-hole tube (1) is provided with a flat outer tube (2), and a plurality of barrier walls (4) that divide the interior of the outer tube (2) into a plurality of flow paths (3a-3g), the width (Wa, Wg) of the flow paths (3a, 3g) at the two ends of the outer tube (2) in a cross-section being greater than the width (Wd) of the flow path (3d) at the center of the outer tube (2).

Inventors:
ASAI Yuto (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2019/015797
Publication Date:
October 24, 2019
Filing Date:
April 11, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F28F1/02; F28D1/053; F28F1/32
Foreign References:
JP2004353954A2004-12-16
JP2003148889A2003-05-21
JP2005083733A2005-03-31
JPH11320005A1999-11-24
JP2005127597A2005-05-19
US20120031601A12012-02-09
Attorney, Agent or Firm:
KIMURA Mitsuru (2nd Floor, Kyohan Building 7, Kandanishiki-cho 2-chome, Chiyoda-k, Tokyo 54, 〒1010054, JP)
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