| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylinder direct injection type internal combustion engine realizing combustion with good combustion stability and fuel consumption performance, and less exhaust emission regardless of fluctuation of load conditions. SOLUTION: The cylinder direct injection type internal combustion engine is provided with a fuel injection valve 11a with a narrow spray angle generating stratified air-fuel mixture around a spark plug 12 being guided by a cavity 4A formed on a piston crown surface, and a fuel injection valve 11b with the wide spray angle generating the stratified air-fuel mixture around the spark plug 12 being oriented to directly spray the spark plug 12. On a stratified high load operating condition, the stratified air-fuel mixture is generated by the fuel injection valve 11a, and on a stratified low load operating condition, the stratified air-fuel mixture is generated by the fuel injection valve 11b. COPYRIGHT: (C)2005,JPO&NCIPI
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