| 摘要 |
In a process for operation of an internal combustion engine having a NOx storage catalytic converter, after desulfuration is required the mode of operation of the internal combustion engine is changed to lambda1<1 and secondary air is injected upstream from the NOx storage catalytic converter (4) during a first time interval T1. After secondary air injection is interrupted, the internal combustion engine is operated at lambda2<1 during a second time interval T2. Normal operation of the internal combustion engine is subsequently resumed. This process makes simple desulfuration of the NOx storage catalytic converter (4) possible (FIG. 1). |
