| 摘要 |
PURPOSE:To check the generation of vapor, by installing a return passage, returning superfluous fuel, in the body inside of a fuel injection valve, and connecting this passage to a fuel tank via a return pipe line installing a pressure regulator side by side. CONSTITUTION:This feeder bearing the above caption feeds each fuel injection valve 7 with the fuel pumped up from a fuel tank 1 by a fuel pump 2 by way of a fuel feed pipe line 5 installing a damper 3 controlling fuel pulsation and a fuel filter 4 and a fuel branch pipe 6. In this case, a return passage (unillustrated herein), which feeds the remaining fuel unsprayed to the outside of a body after being circulated in the body inside, is formed in the body inside of these fuel injection valves 7. A downstream end of this return passage is connected to a fuel outflow port installed in an injection valve body. And, this fuel outflow port is connected to the fuel tank 1 via a pressure regulator 19 regulating fuel pressure in a return conduit 17, a return pipe line 18 and the fuel injection valve 7 and an exhaust pipe 20.
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