| 摘要 |
An internal combustion engine in which an amount of production of soot gradually increases and then peaks when an amount of inert gas introduced into a combustion chamber increases, wherein the amount of inert gas introduced into the combustion chamber is made larger than an amount of inert gas where the amount of production of soot peaks, means for judging if the engine is warmed up, and when the engine is warmed up, at least one control, which includes a control to make timing of fuel injection earlier than that after the warming up of the engine is completed, a control to make a pressure of fuel injection higher than that after the warming up of the engine is completed, a control to make a inert gas rate smaller than that after the warming up of the engine is completed, and a control to make an air fuel ratio larger than that after the warming up of the engine is completed, is executed. This prevents the production of soot and NOx in the combustion chamber. <IMAGE> |
