| 摘要 |
PURPOSE:To make a fuel injection rate variable over a wide range by applying the constitution wherein an engagement member is so fitted as to be freely shiftable for selective contact with the rear of an engagement part provided in a fuel injection valve body and restricting the fuel injection valve body to the mode of a short lift stroke, and controlling the shift of the engagement member with an electromagnet. CONSTITUTION:A fuel injection valve 1 is so constituted that a cylinder 14 is provided for a disc-shaped inner lid member 12 cellularly dividing the inside of a body 6 into front and back sides, and the rear part of a fuel injection valve body 13 for opening and closing a fuel injection port 2 is retained with the cylinder 14. In this case, a flanged engagement part 41 is projected at a position in the rear of the collar part 13c of the fuel injection valve body 13. Also, an engagement member 42 selectively coming in contact with the rear part of the engagement member 41 is provided and so retained on the internal surface of a through-hole 35 as to be freely shiftable. Furthermore, an armature 43 magnetically adsorbed to an electromagnet 31 for controlling the aforesaid engagement member 42 is projected at a portion projected from the through-hole 35 of the engagement member 42. Power supply to the electromagnet 31 is controlled with a control device 61 on the basis of signals outputted from an engine speed detector 62, a throttle opening detector 63 and the like.
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