| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fuel injection pipe which can promptly perform injection of fuel and which can contribute to weight reduction. SOLUTION: An injection part 4 is formed on one end of the fuel injection pipe 1 used for guiding the fuel injected from the injection part 4 to a fuel tank, and the other end is connected to the fuel tank of an automobile. A plurality of bent-pipe parts 6, 8 are provided to the fuel injection pipe 1 at a midpoint from the injection part 4 to the fuel tank. Then inclined planes 10, 12 are provided on the inner surface 1a of the pipe which is on the inner side of the bent-pipe parts 6, 8 and is on the more upstream side than the bent-pipe parts 6, 8 so that the inclined planes 10, 12 are projected from the inner surface 1a of the pipe and are directed toward the inner surface 1a of the pipe which is outside the bent-pipe parts 6, 8. The inclined planes 10, 12 are formed so as to be gradually inclined with respect to the downstream direction of the fuel. Then reverse flow prevention surfaces 14, 16, which are directed toward the downstream direction of the fuel and are steeply inclined with respect to the downstream direction, are formed so as to be connected with the downstream side end of the inclined planes 10, 12. COPYRIGHT: (C)2008,JPO&INPIT
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