| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise due to resonance of a high-pressure fuel pipe in a common rail type fuel injector. SOLUTION: In each cylinder, an injector 2 and a common rail 1 are connected together by means of the high-pressure fuel pipe 4 extended from the common rail 1. By means of the high-pressure fuel pipe 5 extended axially from one end part of the common rail 1, the common rail 1 and a supply pump 3 are connected together. A supporting member 7 is formed into an approximately L-shaped form having a long side part 7a and a short side part 7b extended from it at right angles, and in the long side part 7a, the high-pressure fuel pipes 4 are fixed respectively, while the high-pressure fuel pipe 5 is fixed in the short side part 7b. In each pipe supporting part, an elastic member 18 is arranged. The high-pressure fuel pipe 4 is different from the high-pressure fuel pipe 5 in vibrating direction by 90 degrees, so that vibration can be effectively reduced by mutual connection. |
