Durability of a Thinwall Converter System in Close Coupled Application

Due to the more stringent emissions regulations the catalytic converter has to move closer to the engine. In this hostile environment it is important to have a mechanically durable system, which survives under these severe conditions. This paper shows the evaluation and system design for a close coupled converter. The mechanical durability of this system was proven during an on-road-durability test. During the entire test temperatures were measured inside the converter, at the shell and in the engine compartment to show the thermal management of this system.