| 摘要 |
PURPOSE:To prevent vapor-lock under high temperature condition and improve the operating property of an engine by a method wherein a fuel path is branched in an injection part into upper and lower directions and a lower path is utilized as the path of liquid fuel while the upper path is utilized as the bypassing path of vaporized fuel. CONSTITUTION:The most part of the fuel vapor and air bubbles invades into the upper side fuel bypassing path 8. On the other hand, the fuel of liquid state is supplied to the lower side fuel supplying path 7 since it is heavy. Thus, the fuel path 2 at the bottom of an injector 1 is filled with the fuel only, therefore, generation of vapor lock may be prevented. An insulating member 17 intercepts heat generated by the engine from the side of a throttle chamber 19, therefore, heat conduction to the injection part 3 may be prevented. |
