Abstract: A solenoid valve for a fuel injection valve with an internal space is disclosed. Fuel is included in the internal space. The solenoid valve includes a magnet coil that forms an electromagnet when energized. The solenoid valve also includes a stator that is magnetized by the electromagnet. The solenoid further includes an armature provided in the internal space that is attracted to and moves toward the stator when the stator is magnetized. The armature includes an attracted surface that faces the stator, a second surface that is opposite the attracted surface, a recess provided in the attracted surface, at least one through hole that extends through the armature from the attracted surface to the second surface, and at least one communication groove that establishes communication between the recess and the at least one through hole.

Abstract: A solenoid valve for a fuel injection valve with an internal space is disclosed. Fuel is included in the internal space. The solenoid valve includes a magnet coil that forms an electromagnet when energized. The solenoid valve also includes a stator that is magnetized by the electromagnet. The solenoid further includes an armature provided in the internal space that is attracted to and moves toward the stator when the stator is magnetized. The armature includes an attracted surface that faces the stator, a second surface that is opposite the attracted surface, a recess provided in the attracted surface, at least one through hole that extends through the armature from the attracted surface to the second surface, and at least one communication groove that establishes communication between the recess and the at least one through hole.