Patent ID: 9724683
Date: 2017-08-08
CPC Classifications: B01D,B01J,F01N

Claim:
1. A catalyst structure, comprising: multiple catalyst elements, each having a flat-plate part which supports, on a surface thereof, a constituent having catalytic activity to an exhaust gas, and a plurality of spacers extending in a direction in which the exhaust gas flows and arranged on the flat-plate part equidistantly in a direction perpendicular to a flow of the exhaust gas, the catalyst elements being stacked via the spacers and formed with a stirring part for stirring the exhaust gas, the stirring part being provided in a gas flow passage formed by two of the flat-plate parts adjacent in a stacking direction of the catalyst elements and two consecutive spacers of the plurality, the stirring part having: a plurality of consecutive lead parts formed at prescribed intervals in the direction in which the exhaust gas flows by folding an incision provided in a flat-plate part of each of the gas flow passages, and a plurality of openings formed by the incisions of the lead parts, each of the lead parts having a width in a direction perpendicular to the flow of the exhaust gas, and being folded in substantially a same direction with respect to a direction in which a downstream side of the exhaust gas flows, adjacent catalyst elements being arranged so that the lead parts are present alternately in the direction in which the exhaust gas flows; and wherein the catalyst elements adjacent in the stacking direction are arranged so that the lead parts formed in one of the catalyst elements is present in a position corresponding to a flat part between two of the lead parts, adjacent in a direction in which the exhaust gas flows, of the other of the catalyst elements.