Patent ID: 7089908

Claim:
A combustion control device for a direct injection engine, comprising: a valve control device capable of varying the valve opening/closing mode of an intake valve and/or an exhaust valve; valve opening/closing control means for controlling the valve opening/closing mode by the valve control device; a fuel injection valve for injecting fuel into a cylinder; and fuel injection control means for controlling the fuel injection mode by the fuel injection valve, wherein said valve opening/closing control means controls said valve opening/closing mode of said intake valve and/or said exhaust valve so that exhaust gases remain in a combustion chamber for promoting the vaporization and radicalization of the fuel; wherein said fuel injection control means performs control for injecting fuel from said fuel injection valve into the residual exhaust gases at least once during the time period from the latter half of an exhaust stroke to the first half of an intake stroke in one combustion cycle; and wherein said valve opening/closing control means and said fuel injection control means perform the respective control operations so that the combustion of an air-fuel mixture becomes stoichiometric combustion.