Patent ID: 8978368
Filing Date: 2015-03-17
Classification: B01D,F01N,Y02A,Y02T

Abstract:
1. An exhaust-gas aftertreatment system for a motor vehicle having a turbocharged internal combustion engine, comprising: a lean NOx trap which is connected via a connecting pipe to an outlet of the turbocharger, the connecting pipe having a smaller volume than the lean NOx trap, wherein a diameter of the lean NOx trap defines a maximum length of the connecting pipe, and wherein the lean NOx trap has a first region for one or more of storage of NOx, reduction of NOx, oxidation of NO to form NO2, reduction of hydrocarbons and reduction of carbon monoxide in the exhaust gas, and a downstream second region with a larger volume than the first region for one or more of storage of NOx and reduction of NOx in the exhaust gas.