| 摘要 |
PURPOSE:To optimize fuel atomizing distribution and mixture supply in a fuel supplier for atomizing fuel injected from a fuel injection valve via an extending cylinder by controlling a fuel flow inside the extending cylinder. CONSTITUTION:Numerous grooves 17 for controlling the flowing direction and distribution of a fuel wall flow are formed at the inner surface of an extending cylinder 16 fixed to the tip of a fuel injection valve. The grooves 17 are formed with inclination toward a such direction that the fuel wall flow is guided toward the tip of the extending cylinder 16 while collecting near the center axis at the inner surface of the extending cylinder 16. Consequently, the fuel wall flow at the inner surface of the extending cylinder 16 flows while collecting near the center axis, thus optimizing the fuel distribution inside the extending cylinder 16 of a small surface area while preventing the adhesion of the fuel to the inner surface of an intake port. |
