| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of improving homogeneity of an air-fuel mixture in a combustion chamber, by supplying a proper amount of fuel to each part of the combustion chamber in a state of being easily mixed.SOLUTION: A fuel injection valve 10 is provided with a plurality of injection holes 155 for injecting a fuel toward a combustion chamber 90 disposed on a gasoline engine as an internal combustion engine. Each injection hole axis 159 defining each orientation direction of the plurality of injection holes 155, is directed in a direction different from the others. An intake-side injection hole 157 directed at the intake side of the combustion chamber 90 according to an attitude of the injection hole axis, is a straight injection hole formed by extending an inner peripheral wall surface 157a along the injection hole axis 159b. On the other hand, an exhaust-side injection hole 156 directed at the exhaust side of the combustion chamber 90 according to the attitude of the injection hole axis, is an enlarged injection hole of which an inner peripheral wall surface 156a is gradually separated from the injection hole axis 159a toward an outlet-side opening 155b_e. |
