| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve such a problem that a plated layer runs over the inner periphery side of an axial hole.SOLUTION: A fuel injection valve 10 includes: a movable core 30 having an axial hole 34 and an axial end face 4032, and adapted to be moved to the side of a fixed core 20; and a valve member 40 having a shaft part 42 inserted into the axial hole 34 and a protruded part 44 capable of abutting on the axial end face 4032. The axial end face 4032 is formed with an inner periphery side end face part 4032a capable of abutting on the protruded part 44 and an outer periphery side end face part 4032b protruded from the outer periphery side thereof and capable of abutting on the fixed core 20. The movable core 30 has an annular recessed part 38 recessed in a range from an inner peripheral face 35 of the axial hole 34 throughout the periphery and opened to the axial end face 32, and having a portion diameter-reduced in proportion as being distant from the inner periphery side end face part 4032a in an axial direction. A plated layer 360 is formed continuously between the innermost periphery edge of the inner periphery side end face part 4032a and the outer periphery side end face part 4032b without running over the inner periphery side of the axial hole 34.</p> |
