| 摘要 |
<p>A method for desulfating an NOx trap of an exhaust line of a diesel engine, the method to extract during the operation of the engine at least one portion of the fixed sulphur compounds in the NOx trap. The method produces a reformate via a reformer device from the fuel of the engine, preheat the NOx trap via injection of the reformate in the flow of exhaust gases, in an injection point located downstream of the engine is upstream of the NOx trap, until a predetermined desulfation temperature is reached in the NOx trap, then bypasses the flow of exhaust gases from a bypass point of the exhaust line located upstream of the injection point, and continues the injection of reformate in the NOx trap to produce the desulfation, the richness of the mixture supplying the diesel engine not being affected in the method.</p> |
