Title:
HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2017/141943
Kind Code:
A1
Abstract:
Provided is a heat exchanger (1) that is low in cost and with which it is possible to suppress corrosion of heat transfer tubes for a long period. The heat exchanger (1) has aluminum tubes (2), aluminum fins (3), conducting parts (11), and adhesive layers (4). The aluminum fins (3) have fitting holes (31) into which the aluminum tubes (2) are inserted. The aluminum tubes (2) are in contact with the aluminum fins (3) at the conducting parts (11). The adhesive layers (4) are formed between the aluminum tubes (2) and the aluminum fins (3). In plan view when viewed from the plate thickness direction of the aluminum fins (3), the length of a conducting part (11), where the sum of the length of an adhesive layer (4) and the length of the conducting part (11) is 100%, is 5-40%. The natural potential at the surface of the aluminum tubes (2) is higher than the natural potential at the surface of the aluminum fins (3), and the potential difference therebetween is 30-200 mV.
Inventors:
YANAGIMOTO TSUBASA (JP)
IKAMI HIROSHI (JP)
FUJIMURA RYOKO (JP)
SHIRAI KEITA (JP)
OYA YOSHIYUKI (JP)
IKAMI HIROSHI (JP)
FUJIMURA RYOKO (JP)
SHIRAI KEITA (JP)
OYA YOSHIYUKI (JP)
Application Number:
PCT/JP2017/005444
Publication Date:
August 24, 2017
Filing Date:
February 15, 2017
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
F28F1/32; F25B39/00; F28D1/04; F28F1/02; F28F19/02; F28F21/08
Foreign References:
| JP2015117874A | 2015-06-25 | |||
| JP2015117876A | 2015-06-25 | |||
| JP2012247091A | 2012-12-13 | |||
| JPS4713650Y1 | 1972-05-18 | |||
| JP2013019596A | 2013-01-31 | |||
| JPH0252995A | 1990-02-22 |
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
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