| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of always maintain the excellent controllability of fuel injection amount by preventing the secular change of fuel injecting characteristics caused by the accumulation of deposits by suppressing the accumulation of deposits around a fuel injection hole. SOLUTION: This fuel injection valve 1 is so formed that at least the inner peripheral surface 7a of the fuel injection hole 7 and the surface of the fuel injection hole 7 around its opening part (countermeasure-applied surface) are formed in a fractal structure. COPYRIGHT: (C)2006,JPO&NCIPI
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