Fuel feed apparatus of internal combustion engine and manufacturing method therefor

A fuel feed apparatus of an internal combustion engine which is to be disposed in an intake passage of the internal combustion engine having a plurality of intake valves, said apparatus comprising:

• a fuel injection valve serving to inject fuel from a fuel injection nozzle;
• a passage member provided on said fuel injection valve as being extended in the direction of fuel injection and formed with a fuel passage serving to direct the fuel injected from said fuel injection valve toward the respective intake valves of said internal combustion engine, assist air passages through which assist air is jetted so as to cross the fuel injected from said fuel passage, and a cylindrical guide portion serving to regulate a spray cone angle of the fuel when the assist air is jetted from said assist air passages;
• and
• interrupter means for interrupting the supply of the assist air to said air assist passages in accordance with the operation condition of said internal combustion engine,
• wherein individual sprays of fuel directed to said plurality of intake valves are formed by said fuel passage when said interrupter means cuts off the assist air, while a single spray of fuel atomized by the assist air, the spray cone angle of which is regulated by said guide portion, is formed when said interrupter means allows the assist air to be supplied.