| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a common rail having high pressure resistance and reducing pressure fluctuation of stored fuel and fuel supplied to an outside. <P>SOLUTION: Whole length of a bushing 70 integrated with an orifice forming part 71 is the same as or longer than a fuel hole 52. The bushing 70 integrated with the orifice forming part 71 then covers an inner circumference side of the fuel hole 52 formed by a pipe connection part 50. Thus, an end part in an opposite side of a pressure accumulation chamber 41 of the bushing 70 is not exposed to an inside of the fuel hole 52. As a result, a pressure wave of fuel from an injector reflects in fixed end reflection on only the opposite side of the pressure accumulation chamber 41 of the orifice forming part 71. The orifice forming part 71 is arranged near the pressure accumulation chamber 41. The pressure wave reflected at an end surface 75 and a pressure wave passing through an orifice offset each other and transmission of the pressure wave to the injector 12 side is reduced. <P>COPYRIGHT: (C)2008,JPO&INPIT |
