| 摘要 |
PROBLEM TO BE SOLVED: To enhance the fuel consumption improving effect by imparting the fuel consumption improving effect by lean combustion, and effectively performing compression ignition in some cylinders. SOLUTION: This control device is constituted switchable to an ordinary operation mode for burning gas in a cylinder independent state and a special operation mode for introducing and burning burnt gas exhausted from preceding cylinders 2A and 2D to and in succeeding cylinders 2B and 2C, and has a combustion control means for performing combustion in a state of setting the air-fuel ratio in the respective cylinders to the theoretical air-fuel ratio by supplying fuel by a fuel injection valve when in the ordinary operation mode, and performing the combustion by forced ignition in a state of being set to the leaner air-fuel ratio than the theoretical air fuel ratio by supplying the fuel by the fuel injection valve in the preceding cylinders when in the special operation mode, and controlling the combustion of the respective cylinders so as to burn the burnt gas by the compression ignition by introducing the gas into the succeeding cylinders in a state of supplying the fuel equivalent to the succeeding cylinders by the fuel injection valve to the burnt gas in the cylinders after finishing the combustion in the preceding cylinders on the succeeding cylinders. COPYRIGHT: (C)2004,JPO |
