| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylinder fuel injection spark ignition internal combustion engine capable of forming an air-fuel mixture having an excellent degree of homogeneity regardless of an engine speed. SOLUTION: The cylinder fuel injection spark ignition internal combustion engine includes a piston 4 disposed inside a combustion chamber 5, an ignition plug 10 disposed in an upper part of the combustion chamber, two intake valves 6 disposed in the upper part of the combustion chamber, and a fuel injection valve 11 for injecting fuel into the combustion chamber. The engine also includes an injection center axis angle control means for controlling, according to an engine speed, an injection center axis angle V which is an angle between a plane perpendicular to a center axis of the piston and an injection center axis of the fuel injection from the fuel injection valves. COPYRIGHT: (C)2009,JPO&INPIT
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