Investigation of an NOx adsorber catalyst used with a passenger car diesel engine

The use of an NOx adsorber catalyst, which has already become a standard component in direct-injection spark-ignition engines, poses a special challenge in diesel engines. This article presents the results of experiments on an NOx adsorber catalyst in a passenger car diesel engine carried out by the Lehrstuhl fur Verbrennungskraftmaschinen of the RWTH Aachen in cooperation with FEV Motorentechnik GmbH.