| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a common rail that prevents occurrence of burr when a cylinder with an orifice formed therethrough is pressed into the inside of a branch hole. <P>SOLUTION: A branch portion 13 is formed on an outer circumference of a rail body 23 having a main tube hole 11 formed on the inside, and a branch hole 14 branched from the hole 11 is formed on the inside of the branch portion 13. A fuel supply tube 30 to an injector is connected to a projected end portion of the portion 13, and a cylinder 14 with an orifice formed therethrough is fixed by pressing into the inside of the hole 14. A film Q subjected to chemical conversion treatment is formed on the entire rail body 12 to apply lubricity. <P>COPYRIGHT: (C)2004,JPO |
