INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

This invention relates to an internal combustion engine and a control device for the internal combustion engine and has an object to provide an internal combustion engine and a control device therefor that can suppress occurrence of knocking if an EGR rate is increased. In a system of this embodiment, as illustrated in Fig. 7 , all EGR gas can be made to flow separately through a path (path a) via an EGR passage 28 and a path (path b) via an EGR passage 30. Particularly, by having the EGR gas flow through the path b, the EGR gas can be cooled by an intercooler 18. Since the intercooler 18 usually has a capacity larger than that of an EGR cooler 34, its cooling capability is high. Therefore, according to the system of this embodiment, the EGR gas can be made to flow into a surge tank 22 in a state where heat of the EGR gas has been sufficiently emitted.