| 摘要 |
A fuel injector 10 may comprise a valve body 14 having a fuel path, a valve seat 23 fixed to a downstream end of the valve body, and a valve 25 that opens and closes a fuel injection hole of the valve seat 23 . The valve may be housed within the valve body in a manner allowing sliding. An armature 31 may be attached to an upstream end of the valve 25 , and a valve closing element 32 may be attached to a downstream end of the valve 25 . A core 21 may be disposed at an upstream side of the armature 31 . A downstream end surface of the core 21 faces an upstream end surface of the armature 31 . When the valve 25 opens the fuel injection hole, the downstream end surface of the core 21 makes contact with the upstream end surface of the armature 31 . A non-magnetic ring 20 may be disposed at an outer circumference side of the armature 31 and the core 21 . The non-magnetic ring 20 may extend as far as an upstream side of the solenoid coil 18 , and the solenoid coil 18 may be wound directly around an outer circumference of the non-magnetic ring 20.
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