| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection device of a fuel revolving type capable of enhancing the degree of cavitation in the fuel. SOLUTION: The fuel injection device includes a revolving body 7 furnished with a revolving groove 711 where a fuel passage 91 is provided leading from the outlet of the groove 711 to a fuel injection hole 81, and in at least one place of the fuel passage 91, for example in the neighborhood of the boundary of the surface 82 of a valve seat 8 with an intra-seat fuel passage 912 penetrating the valve seat 8 or in the middle of the passage 912, a fuel exfoliating place is provided where the inertial force generated in the fuel F willing to flow in exfoliation from the wall surface of the fuel passage 91 is greater than the centrifugal force generated in the fuel F based on its revolving force willing to flow without exfoliation from the wall surface of the fuel passage 91. COPYRIGHT: (C)2004,JPO
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