Title:
HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2022/107868
Kind Code:
A1
Abstract:
Provided is a heat exchanger obtained by laminating cup-shaped plates having on the outer periphery thereof a stepped surface wherein, when a first flow passage and a second flow passage are formed, dome-shaped protrusions protruding toward the interior of the second flow passage are formed from each of the plates which oppose each other with the second flow passage sandwiched therebetween, and these protrusions are joined to each other, deformation of the base surface of each plate is prevented while ensuring formability of the protrusions. A plurality of protrusions (11) having a dome-shaped cross section are formed in the respective opposing surfaces of a first plate (2) and a second plate (3) of a second flow passage (5), the apexes of the protrusions (11) are brought into contact with each other, the contact portions of those plates are joined by brazing, the plate thickness of the plate material of the plates (2, 3) is set to 0.4 mm to 1.0 mm, the diameter (D) of the protrusions (11) formed on the base surface (1) of the plates (2, 3) is 2 mm to 9 mm, and the height of the second flow passage (5) is formed at 0.8 mm to 2.6 mm.
Inventors:
MATSUSAKA SHUHEI (JP)
Application Number:
PCT/JP2021/042509
Publication Date:
May 27, 2022
Filing Date:
November 11, 2021
Export Citation:
Assignee:
T RAD CO LTD (JP)
International Classes:
F28F3/08; F28F3/10
Foreign References:
| JP2019070474A | 2019-05-09 | |||
| JPH10206067A | 1998-08-07 | |||
| JP2007248031A | 2007-09-27 | |||
| JP2000146477A | 2000-05-26 | |||
| JP2013029296A | 2013-02-07 |
Attorney, Agent or Firm:
KUBOTA, Takubi (JP)
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