MULTIFUEL INTERNAL COMBUSTION ENGINE

摘要

To improve engine performance, fuel consumption performance, and emission performance in a high-load operation in a well-balanced manner. To provide a fuel property detecting unit that detects an ignitability index Pc and a volatility index Pv respectively found through indexation of an ignitability and a volatility of fuel including at least two types of fuels F1 and F2 with different properties in a combustion chamber CC, a combustion mode setting unit that sets a combustion mode to a stoichiometric compression auto-ignition diffusion combustion mode when the ignitability index Pc and the volatility index Pv are respectively equal to or higher than an ignitability determination reference value Pc1 and a volatility determination reference value Pv1 satisfying a good ignitability and a good volatility suitable for the stoichiometric compression auto-ignition diffusion combustion mode, and an operation condition is of high-load, and a combustion control execution unit that causes an operation in the combustion mode set by the combustion mode setting unit.