| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injector effectively discharging vapor generated in a fuel supply passage 31 communicating a fuel pump with a fuel injection valve J into a fuel tank T via a pressure regulator R, continuously supplying accurate fuel from the fuel injection valve J to an engine E, and suiting a two wheeler with small displacement. SOLUTION: A plunger pump 1 is used as the fuel pump, the plunger pump 1 is arranged adjacently to the fuel tank T in a position higher than the engine E, and a discharge passage 7 of the plunger pump 1 is communicated with the fuel injection valve J arranged in a lower position in a neighborhood of the engine E via the fuel supply passage 31. The pressure regulator R is arranged at the upper part than the fuel injection valve J and in proximity to the plunger pump 1, an inflow passage 23 of the pressure regulator R is connected with the discharge passage 7 of the plunger pump 1, and an outflow passage 24 is connected with the fuel tank T via a return fuel passage 33. COPYRIGHT: (C)2003,JPO
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