No exhaust emission control method and arrangement

Details No exhaust emission control method and arrangement No exhaust emission control method and arrangement

1999-03-16

1999-11-30

Denion, Thomas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60278, 60301, 60285, 422170, 422171, 422177, 4232137, 4232132, F01N 300

Patent

active

059921420

ABSTRACT:
NO.sub.X conversion of exhaust gases from lean mixture engines such as Diesel engines is improved by providing a catalytic converter having three zones, the first zone containing an NO.sub.X storage material on a .gamma.-aluminum oxide layer, the second zone having a layer with a noble metal, and the third zone containing an oxygen storage layer.

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