| 摘要 |
PURPOSE:To suppress the outflow of fuel vapor into the outside air when injecting fuel by forming a small chamber communicating to a tank on the bottom wall surface inside the fuel tank so that the fuel outflow port of a fuel injection pipe is opened in the small chamber. CONSTITUTION:A small chamber 9 is formed on the bottom wall surface inside a fuel tank 1 with a rising wall 8 protruded upward. The lower-end section of a fuel injection pipe 2 is extended into this small chamber 9 so that a fuel outflow port 10 is located in the small chamber 9. Accordingly, when the fuel in the tank 1 is decreased and fuel is to be injected, only a quantity of fuel vapor existing in the small chamber 9 flows out into the outside air, and a large quantity of fuel vapor in the tank 1 does not flow out into the outside air. |
