| 摘要 |
A fuel injection nozzle includes a spring which loads a fluid pressure operable valve member into contact with a seating. An electromagnetic device including an armature acts when energized to reduce the force exerted by the spring on the valve member to allow the valve member to be lifted from the seating by the fluid pressure. The return motion of the armature when the device is de-energized is effected by the spring and the armature can continue to move after the valve member has engaged the seating. Friction device is provided to damp the continued movement of the armature.
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