| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high pressure fuel supplying device for an internal combustion engine capable of suppressing fuel leakage from a fuel injection valve and the generation of vapor. <P>SOLUTION: In a high pressure fuel passage 31, a discharging valve 30 making fuel pass through only from a high pressure pump side to a delivery pipe side is provided, and a communicating passage having an orifice 42 is integrally provided with the discharging valve 30. The communicating passage is provided in parallel with the discharging valve 30, and connects an upstream part with a downstream part of the discharging valve 30. The orifice 42 is formed so as to put the fuel of amount which does not become an obstacle when fuel pressure in the delivery pipe is raised to target pressure by a high pressure pump, into circulate. In the communicating passage, a check valve 40 opening when the fuel pressure in the delivery pipe is not less than predetermined pressure, and making the fuel to pass only from the delivery pipe side to the high pressure pump side is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT |
