Daimler-Benz Ag

Gunter Wonninger

Bernd Krutzsch

Walter Boegner

Karl-Ernst Haak

In an apparatus for reducing the nitrogen oxide emission of an internal combustion engine wherein the nitrogen oxides are removed from the engine exhaust gas in an adsorber from which they are subsequently purged by hot gases, the hot gases with the nitrogen oxides purged from the adsorber are returned to the air intake of the internal combustion engine for reaction in the combustion process in the internal combustion engine in which the nitrogen oxide is converted to nitrogen and oxygen.

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Stuttgart, Germany

Gunter Wonninger