Exhaust gas treatment device and motor vehicle having the device

摘要

An exhaust gas treatment device includes an exhaust gas treatment component for conducting a flow in a flow direction from an inflow side to an outflow side. A metering device for metering reducing agent into the exhaust gas treatment device is disposed downstream of the outflow side in the flow direction. The metering device has a metering direction which runs at least partially counter to the flow direction. The outflow side of the exhaust-gas treatment component is spanned at least partially by a porous layer and there is a spacing between the metering device and the exhaust-gas treatment component selected in such a way that injected reducing agent reaches the porous layer. A motor vehicle having the device is also provided.

主权项

1. An exhaust gas treatment device, comprising:
an exhaust gas treatment component having an inflow side and an outflow side, the exhaust gas treatment component configured to conduct exhaust gas from the inflow side to the outflow side in a flow direction; a porous layer completely spanning the outflow side such that the exhaust gas which flows through the exhaust gas treatment component must also completely pass through the porous layer, said porous layer including a metal fabric or a metal fleece; and a metering device disposed downstream of the outflow side in the flow direction, the metering device configured to inject reducing agent into the exhaust gas treatment device in a metering direction running at least partly counter to the flow direction; the metering device and the exhaust gas treatment component disposed at a mutual spacing selected to cause injected reducing agent to reach the porous layer.