| 摘要 |
PURPOSE:To perform excellent EGR up to reaching a high load area from a low load area without causing a response delay due to a change in an engine load or switching of actuation of a supercharger. CONSTITUTION:A supercharger bypass passage 19 is arranged to by pass a supercharger 17, and at low load time when the supercharger 17 is stopped, a bypass opening and closing valve 20 is opened, and the supercharger is bypassed. An EGR passage 21 for a low load and an EGR passage 22 for a high load are provided as EGR passages, and both passages 21 and 22 are connected to a position upstream of the supercharger 17 in a common intake air passage 13. |
