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In a honeycomb catalytic converter having a metal case, a honeycomb catalyst mounted in the metal case, and a securing member used for mounting the honeycomb catalyst in the metal case and arranged between an outer surface of the honeycomb catalyst and an inner surface of the metal case, at lest one

In a honeycomb catalytic converter having a metal case, a honeycomb catalyst mounted in the metal case, and a securing member used for mounting the honeycomb catalyst in the metal case and arranged between an outer surface of the honeycomb catalyst and an inner surface of the metal case, at lest one of an inlet portion and outlet portion of the honeycomb catalyst has a double cone structure in which an inner cylindrical member is arranged in the metal case. The honeycomb catalytic converter mentioned above can mount the honeycomb catalyst stably in the metal case for a long period of time even when exposed to high temperatures.

대표청구항 ▼

[ What is claimed is:] [1.] A honeycomb catalytic converter, comprising a metal case, a honeycomb catalyst mounted in said metal case, a securing member for mounting said honeycomb catalyst in said metal case and arranged between an outer surface of said honeycomb catalyst and an inner surface of sa

[ What is claimed is:] [1.] A honeycomb catalytic converter, comprising a metal case, a honeycomb catalyst mounted in said metal case, a securing member for mounting said honeycomb catalyst in said metal case and arranged between an outer surface of said honeycomb catalyst and an inner surface of said metal case, at least one of an inlet portion and an outlet portion of said converter having a double cone structure wherein said metal case comprises an outer cylindrical member and an inner cylindrical member is disposed concentrically therein, a circumferential gap of substantially constant size being defined by said outer and inner cylindrical members, and a flange being connected to each of said outer and inner cylindrical members, said flange maintaining an end portion of each of said outer and inner cylindrical members at a distance for each other corresponding to the size of the gap.