| 摘要 |
PROBLEM TO BE SOLVED: To intensify turning flow in a combustion chamber by fuel spray flow speed of a fuel injection valve in a cylinder direct injection type internal combustion engine provided with a plurality of intake valves flowing intake air into the combustion chamber so as to make intake air flowing into the combustion chamber of the internal combustion engine designated turning intake air flow in the combustion chamber and giving flow rate difference between two of the intake valves out of the plurality of the intake valves. SOLUTION: The internal combustion engine has a fuel injection valve injecting fuel into a combustion chamber. A fuel injection direction from the fuel injection valve is in a same direction as a flow-in direction of intake air from the intake valve. Fuel is injected asymmetrically with respect to an injection center axis line in such a manner that spray speed at an intake air flow side from the intake valve having larger intake air quantity is higher and spray speed at an intake air flow side from the intake valve having smaller intake air quantity is lower in expansion of the spray in a horizontal direction. COPYRIGHT: (C)2009,JPO&INPIT
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