초록 ▼

A NO.sub.x reduction system includes an SCR catalytic converter and a metering assembly for reducing agent. A control unit for the reduction system is integrated together with the actuators and sensors as a functional unit at the reducing agent container. This provides savings in terms of lines and

A NO.sub.x reduction system includes an SCR catalytic converter and a metering assembly for reducing agent. A control unit for the reduction system is integrated together with the actuators and sensors as a functional unit at the reducing agent container. This provides savings in terms of lines and plug-in connections, and relieves the burden on the control unit of the internal combustion engine.

대표청구항 ▼

[ We claim:] [1.] An NO.sub.x reduction system for an internal combustion engine operating with excess air, comprising:an SCR catalytic converter arranged in an exhaust system of an internal combustion engine;a reducing agent container for storing reducing agent;a metering device communicating with

[ We claim:] [1.] An NO.sub.x reduction system for an internal combustion engine operating with excess air, comprising:an SCR catalytic converter arranged in an exhaust system of an internal combustion engine;a reducing agent container for storing reducing agent;a metering device communicating with said reducing agent container for controlled delivery of the reducing agent into the exhaust system upstream of said SCR catalytic converter in a direction of exhaust gas flow in the exhaust system; anda control device assembly integrated in said reducing agent container for controlling the NO.sub.x reduction system, said control device assembly being a functional unit comprising a control device and associated sensors and actuators for storing, feeding, conditioning, and metering the reducing agent.