A metal support has a potential to improve an engine output and the conversion efficiency. In order to satisfy both requirements, the back pressure drop should be reduced and the high-temperature use of the catalyst converter has to be a must. To develop such a metal support, a manifold converter without a retainer is the best choice. Removing a retainer resulted in joining the metal honeycomb-core to the jacket. Brazing was selected. Installing as a manifold converter led a metal support to the severe environment in which the high mechanical durability was required.The back pressure drop, the adhesion of the washcoat and the conversion performance have been investigated for the high-temperature use. To develop the brazed structure to meet the high mechanical durability, analyzing the temperature distribution and the fracture modes in a metal support has been conducted through the endurance engine-bench test. As a result, a highly heat-resistant metal supported catalyst has been successfully developed. It has been adapted to new TOYOTA CAMRY since July in 1990.


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    Title :

    Development of a Highly Heat-Resistant Metal Supported Catalyst


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Congress & Exposition ; 1991



    Publication date :

    1991-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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