| 摘要 |
PURPOSE:To enable provision of capacity characteristics being sufficient enough to allow satisfaction of given demand characteristics, by a method wherein a catalyst carrier is divided into a plurality of parts, and division catalyst carriers are differed in a ratio surface area from each other. CONSTITUTION:A catalyst converter body 1 is provided on both sides with exhaust gas outlet and inlet ports 3 and 2, and is connected to a flange 5 of an exhaust muffler 5 through a flange 4 formed to the one end part. A catalyst carrier serving as a means facilitating retension of exhaust gas is situated in the catalyst converter body 1. In this case, a catalyst carrier is formed such that a plurality of division catalyst carriers S1-Sn are properly combined together. Each of the catalyst carries S1-Sn is formed by ceramic to form a porous substance having continuous void three-dimensional skeleton structure, and the size of each pore of the porous substance and the number of the pores are differed from each other. This constitution enables provision of capacity characteristics being sufficient enough to allow satisfaction of given demand characteristics.
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