| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively shut-off the transmission of pulsation waves from a fuel injection rail to a fuel supply pipe and a vehicle body. <P>SOLUTION: In the fuel injection rail 10 attached with an injector cup 14 for holding an injector 15, the distance between a check valve 20 and the injector 15 is shortened by providing the check valve 20 inside a body 10 to be positioned on the immediate upstream of the injector 15. Pressure waves and reflection waves reflected by the check valve are composed in a pipe 13 between the injector 15 and the check valve 20. The shorter the distance between the injector and the check valve becomes, the higher the frequency of the waves becomes with the smaller amplitude. The high frequency is easily attenuated. <P>COPYRIGHT: (C)2011,JPO&INPIT |
