| 摘要 |
PROBLEM TO BE SOLVED: To provide technology capable of easily controlling generation and restraint of cavitation, in a control device of a fuel injection valve. SOLUTION: This control device of the fuel injection valve is furnished with a first needle 11 to cut off a flow of fuel to a sack 14 on which a nozzle hole 15 is formed and a second needle 12 passing through the first needle 11, free to project to the inside of the sack more than the first needle 11 and free to advance and retreat independently from the first needle 11 and changes a flowing field in the sack 14 by changing a relative position of the first needle 11 and the second needle 12 when the first needle 11 opens. COPYRIGHT: (C)2009,JPO&INPIT
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