| 摘要 |
The invention relates to an electromagnetic valve for controlling an injection valve of an internal combustion engine. Said electromagnetic valve comprises an electromagnet (29) and an armature. The armature, in turn, has an armature pin (27), which is mounted in a manner that permits it to move relative to the electromagnet, and has an armature plate (28) that is mounted on the armature pin (27) whereby enabling it to be displaced in a sliding manner. The electromagnetic valve also comprises a control valve element (25), which is moved with the armature, interacts with a valve seat (24) and is provided for opening and closing a fuel passage (17). When the control valve element strikes the valve seat (24) as the magnetic valve closes, the armature plate (28) can, under the influence of its inert mass, be displaced, with an overtravel path (h2), along the armature pin from a stop (26), which is fixed to the armature pin (27), up to a stationary overtravel stop (39). In order to prevent post-oscillation of the armature plate (28) on the armature pin when the electromagnetic valve closes, the invention provides that the armature plate (28) is mounted on the armature pin between the overtravel stop (39) and the stop (26), which is fixed to the armature pin, whereby enabling the armature plate to be displaced free of resetting elastic spring forces. |
