| 摘要 |
PROBLEM TO BE SOLVED: To ensure good fuel spray, and realize stable lean combustion by arranging a fuel turning member on the upstream side of a valve seat part of a valve member for opening/closing a fuel passage, and arranging two clearances which are different from each other in the axial direction between the outer wall of the valve member and an inner wall of the fuel turning member, in the fuel turning member. SOLUTION: When an ON-signal is applied on a solenoid coil, a plunger is attracted to a core side, a valve element 6 is moved upward through a rod 25, and is separated from a seat surface of a valve seat of a nozzle member 7, and an injection hole 8 is opened. Fuel is passed from the axial direction groove of a fuel turning member 22 to a diameter direction groove 24, turned and supplied to the seat part, and injected via the injection hole 8. At this time, strong turning effort is obtained by increasing an eccentric quantity in the diametrical direction groove 24 of the fuel turning member 22. Stable turning flow is obtained from the diameter direction groove 24 by arranging a fluid seat part 26 for suppressing fuel which flows a hole 22a in the fuel turning member 22, and thereby fuel turning into film state is promoted.
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