Method and apparatus for manufacturing a catalytic converter

Details Method and apparatus for manufacturing a catalytic converter Method and apparatus for manufacturing a catalytic converter

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 3/28 (2006.01)

Patent

CA 2525389

A method and apparatus for manufacturing a catalytic converter (2) is described where the catalytic converter (2) is comprised of an outer tube member (4) having a monolith substrate (6) internally compressed therein with a wrapped mat material (8) surrounding the monolith substrate (6) and intermediate the outer tube (4). One or more monolith members (4, 6) can be applied within the outer tube (4) and heat shields (12, 20) may also be applied internal to the outer tube (4) and adjacent to the monolith substrate (6). The assembly of the catalytic converter (2) includes measuring the sequence of compression of the mat material (8) to the monolith substrate (6) in order to understand the possible force characteristics that can be applied during the assembly thereof. The mat material (8) is therefore compressed within the outer tube (4) by way of compression jaws (194), by compression rollers (94), spinning, and/or by via a shrinker mechanism (400, 500, 600). The compression of the mat material (8) can be in single or multiple steps.

L'invention concerne un procédé et un appareil pour fabriquer un convertisseur catalytique (2), ce dernier comprenant un élément de tube extérieur (4) présentant un substrat monolithique (6) comprimé de manière interne, une matière en mat entourée, entourant le substrat monolithique (6) et qui est intermédiaire au tube extérieur (4). Un ou plusieurs éléments monolithiques (4, 6) peuvent être appliqués à l'intérieur du tube extérieur (4) et des panneaux de chauffage (12, 20) peuvent être également appliqués à l'intérieur du tube extérieur (4) et de manière adjacente au substrat monolithique (6). L'ensemble du convertisseur catalytique (2) comprend la mesure de la séquence de compression de la matière (8) en mat sur le substrat monolithique (6), de façon à comprendre les caractéristiques de force qui peuvent être appliquées lors de l'assemblage. La matière (8) en mat est ensuite comprimée à l'intérieur du tube extérieur (4) par des mâchoires de compression (194), des rouleaux de compression (94), par rotation et/ou par un mécanisme décatisseur (400, 500, 600). La compression de la matière (8) en mat peut s'effectuer dans des étapes simples ou multiples.

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