FURL INJECTOR FOR INTERNAL COMBUSTION ENGINE

PURPOSE:To secure the stable air-fuel ratio by splashing the fuel jetted from an injection port at the high speed of air and atomizing the fuel by arranging a nozzle part having the injection port at the top edge part of a fuel injector, directly under the narrowest part of an intake passage on the upstream side of a throttle valve. CONSTITUTION:As for an intake cylinder 3 formed from a plurality of bodies 1 and 2, a fuel injector 5 is assembled inside a holding jets out fuel into the intake cylinder 3 from a fuel injection port 7. In this case, a nozzle 8 having the fuel injection port 7 at the top edge part of the injector 5 is arranged at the narrowest part 9 of an intake passage on the upstream side of the throttle valve 4 or directly under the narrowest part 9. Accordingly, the nozzle 8 is arranged at the part where the air flow rate is highest. Accordingly, the fuel jetted from the fuel injection port 7 is splashed at the high flow speed and atomized, and the trouble that fuel adheres on the nozzle 8 and stays, and drops in lump, and air-fuel ratio varies can be suppressed.