| 摘要 |
PURPOSE:To unify the concentration distribution of fuel in a space provided near an intake valve so as to improve combustion, in the intake device of a fuel injection type internal combustion engine for making injected fuel collide with an intake valve umbrella part to carry out atomization. CONSTITUTION:Fuel injected from a fuel injection valve 26 is directed toward intake valve umbrella parts 17a, 17b, and nearly concentric circle shaped grooves 20 as a guide means are provided on the upper surface of the intake valve umbrella parts 17a, 17b. |
