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Patent Searching and Data


Title:
CORE STRUCTURE FOR HEADER PLATE-LESS HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2017/090776
Kind Code:
A1
Abstract:
Provided is a core structure for a header plate-less heat exchanger, wherein the efficiency of use of the interior space of the tubes thereof is improved and the heat transfer efficiency is enhanced. The core structure for a header plate-less heat exchanger is configured such that a plurality of flat tubes 2 are stacked to form first fluid flow paths inside the tubes 2 and second fluid flow paths outside the tubes, the core structure being characterized in that: the interval between flat surfaces opposing in the stacking direction inside each tube 2 is formed so as to be constant until both end sections of the tubes 2; a multi-layered structure 2c formed by bending flat ends of the tubes 2 in parallel to axial outer surfaces of the tubes 2 is provided to flat regions in the stacking direction at both end sections of the tubes 2; and the second fluid flow paths are formed at predetermined intervals between the flat tubes 2 by the multi-layered structure 2c.

Inventors:
YOSHINO YASUSHI (JP)
OKUBO ATSUSHI (JP)
KIMURA KENTARO (JP)
SASAKI YOSHIHIKO (JP)
Application Number:
JP2016/085829
Publication Date:
June 01, 2017
Filing Date:
November 24, 2016
Export Citation:
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Assignee:
T RAD CO LTD (JP)
International Classes:
F28D9/00; F28F3/06; F28F3/08
Foreign References:
JP2015105818A2015-06-08
JP2014052086A2014-03-20
JP2007225190A2007-09-06
JP2011002133A2011-01-06
Attorney, Agent or Firm:
KUBOTA, Takubi (JP)
Takumi Kubota (JP)
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