Title:
ALUMINUM ALLOY HEAT EXCHANGER FOR EXHAUST GAS RECIRCULATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/189428
Kind Code:
A1
Abstract:
Provided is an aluminum alloy heat exchanger for exhaust gas recirculation system, the heat exchanger being installed in an exhaust gas recirculation system of an internal combustion engine, and being for cooling exhaust gas, and being characterized by comprising a tube equipped with a sacrificial anti-corrosion material on the side through which said exhaust gas passes, and fins brazed on the sacrificial anti-corrosion material surface-side of said tube, the pitting potential of said fin being higher than the pitting potential of the sacrificial anti-corrosion material surface of said tube. According to this invention it is possible to provide an aluminum alloy heat exchanger for exhaust gas recirculation system, the heat exchanger having a sacrificial anti-corrosion which functions effectively, and a long service life, even in acidic environments in which the oxide membrane becomes weak overall and it is difficult for pitting to occur.
Inventors:
OYA YOSHIYUKI (JP)
SHOJI TOMOHIRO (JP)
FUKUMOTO ATSUSHI (JP)
NISHIYAMA KOUKI (JP)
IKEDA TORU (JP)
SHINODA TAKAHIRO (JP)
SHOJI TOMOHIRO (JP)
FUKUMOTO ATSUSHI (JP)
NISHIYAMA KOUKI (JP)
IKEDA TORU (JP)
SHINODA TAKAHIRO (JP)
Application Number:
PCT/JP2019/013301
Publication Date:
October 03, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
UACJ CORP (JP)
DENSO CORP (JP)
DENSO CORP (JP)
International Classes:
C22C21/00; B23K35/14; B23K35/22; B23K35/28; F02M26/29; F28F21/08
Foreign References:
| JP2014178101A | 2014-09-25 | |||
| JP2014177694A | 2014-09-25 |
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (JP)
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