| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of easily improving coaxial accuracy of an upstream-side guide portion and a downstream-side guide portion.SOLUTION: In a fuel injection valve including a valve seat and a valve element, opening and closing a fuel passage in cooperation with each other, and an electromagnetic driving portion 9 for driving the valve element, and provided with a fixed iron core 25, a movable iron core 27a connected with the valve element to drive the valve element in an opening/closing valve direction by magnetic attraction force acting on between the fixed iron core 25 and the movable iron core, and an electromagnetic coil 29 generating magnetic flux in a magnetic passage configured between the fixed iron core 25 and the movable iron core 27a by being energized, in the electromagnetic driving portion 9, the movable iron core 27a is composed of an annular member, a rod portion 27b having the valve element at one end portion, is penetrated through the movable iron core 27a in a central axis direction at the other end portion 27bc, and an outer peripheral face 27bd of the other end portion 27bc of the rod portion 27b is constituted to be slide-contacted with an inner peripheral face 25aa of a hole 25a formed on the fixed iron core 25 in the central axis direction.SELECTED DRAWING: Figure 3 |
