| 摘要 |
PURPOSE:To suppress generation of wall flow by corresponding the direction of atomized fuel to the partiality of flow velocity inside an intake port when an intake control valve having a cutout is closed. CONSTITUTION:An intake control valve 12 on an upstream side of an intake port 5 has a cutout on its one side. An assist air extraction port 21 which is opened to an upstream side of the intake control valve 12 is communicated with an air supply port of a mixer part 11 on an end of a fuel injection valve 10. The assist air extraction port 21 is located with a distance from the cutout so as to obtain pressure difference between front and rear portions when the intake control valve 12 is closed. The air supply port is formed only on the opposite side of the cutout so as to give atomized fuel deflection element to the cutout side. |
