| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce quantity of fuel adhering to an inner wall surface of a cylinder of an engine. <P>SOLUTION: Fuel injection valves 15 are disposed in two intake ports 13 of each cylinder 12 respectively. Each fuel injection valve 15 is arranged in such a manner that an injection part 15a of each fuel injection valve 15 is positioned at an outer side of a center axis of each intake valve 16 in a view from a center side of the cylinder and that fuel injected toward an inner wall surface of the substantially deepest part on an opposite side of the intake port 13 in a combustion chamber in the cylinder 12. In this construction, fuel injected from the fuel injection valve 15 does not easily flow toward the inner wall surface of the cylinder 12 even if flow of intake air powerfully sucked toward the inner wall surface of the cylinder 12 from an opening part of each intake port 13 during intake stroke, and the quantity of fuel adhering on the inner wall surface of the cylinder 12 is reduced by making the distance for fuel injected from the fuel injection valve 15 to reach the inner wall surface of the cylinder 12 longer and during which, accelerating evaporation of the injected fuel. <P>COPYRIGHT: (C)2010,JPO&INPIT |
