| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively reduce noise due to resonance of fuel supply pipe with accompanying fuel injection of a fuel injection valve in a return-less type fuel supply device. <P>SOLUTION: Although the delivery pipe 11 and the fuel supply pie 19 are resonated with pressure variation accompanying fuel injection of the fuel injection valve 12 and cause noise if a pump module 14 provided with a fuel pump 15 and a pressure regulator 18 and a delivery pipe 11 provided with the fuel injection valve 12 are connected by the fuel supply pipe 19, not only noise due to resonance of the delivery pipe 11 but also noise due to resonance of the fuel supply pipe 19 can be effectively reduced by providing a first pulsation damper 20 touching the delivery valve 11 and a second pulsation damper 21 touching a pump module 14 on the fuel supply pipe 19. Workability of assembling the pump module 14 and a second pulsation damper 21 is improved by integrating the pump module 14 into the second pulsation damper 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
