Patent ID: 6080371
Filing Date: 2000-06-27
Classification: B01J,F01N

Abstract:
A catalytic converter comprising:a plurality of corrugated sheet metal portions which are put on one another to constitute a honeycomb metallic catalyst bed, each sheet metal portion having a plurality of straight, parallel, alternate ridge and groove portions, so that when each upper sheet metal portion is parallelly put on a corresponding lower sheet metal portion having the groove portions of the upper sheet metal portion put on the ridge portions of the lower sheet metal portion, there are defined therebetween a plurality of parallel through cells each having a regular square cross section, each of said parallel through cells being defined by two jointed segments of the ridge portion of the upper sheet metal portion and two jointed segments of the groove portions of the lower sheet metal portion;first stopper means which suppresses a lateral displacement between the upper and lower sheet metal portions, said first stopper means comprising portions pressed out downward from the ridge portions, so that when each upper sheet metal portion is parallelly put on a corresponding lower sheet metal portion, each of the downwardly pressed out portions of the upper sheet metal portion is received in the groove portion of the lower sheet metal portion;second stopper means which suppresses an axial displacement between the upper and lower sheet metal portions;a case for encasing therein said honeycomb metallic catalyst bed; andinlet and outlet pipes which are connected to front and rear ends of said case.