| 摘要 |
In a fuel injector ( 1 ) configured so that fuel injection is controlled by a solenoid valve ( 4 ), the solenoid valve ( 4 ) comprises an electromagnet ( 43 ), an armature bolt ( 41 ) that has a ball ( 42 ) and a plate member ( 41 A) attached thereto and is spring-biased in the valve closing direction by a spring member ( 48 ), a stopper member ( 49 ) that limits movement of the plate member ( 41 A) in order to limit the maximum stroke of the ball ( 42 ) and an armature plate ( 44 ) through which the armature bolt ( 41 ) passes and which collaborates with the solenoid valve ( 4 ), the contact area (S 2 ) between the armature plate ( 44 ) and the plate member ( 41 A) being made larger than the contact area (S 1 ) between the plate member ( 41 A) and the stopper member ( 49 ).
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