CATALYTIC CONVERTER WITH HOUSING-BED-PLENUM REINFORCING AND SPACING MEANS

摘要

C-3085 D-3566 In a catalytic converter, a sheet metal housing encloses a pair of sheet metal catalyst pellet beds and a stud extends through aligned openings in the members of the housing and both inner and outer member of each bed to reinforce these members and also maintain a certain spacing between the members of each bed. The inner bed members are self-piloted and fixed together in alignment at their respective stud openings prior to their assembly in the converter. An enlarged diameter portion is provided on the stud to maintain predetermined spacing between the inner and outer members of one of the beds and a spacer is added which cooperates with the enlarged diameter stud portion to hold the inner bed members in position while also maintaining a predetermined spacing between the members of the other bed. Then on external clamping of the housing members to the outer bed members at the stud, such clamping and spacing is permanently retained by welding the housing members to the ends of the stud.