Magnetic valve

Claim 1

A solenoid-actuated valve for controlling a flow opening of a connection line for guiding fluid, particularly fuel, the valve comprising a solenoid with an armature; a valve housing having a guide bore hole and a seat encircling said flow opening; a valve member having a shoulder provided with a sealing surface and being displaceably supported in said guide bore hole, said sealing surface of said shoulder being movable into contact with said valve seat under the action of a closing force and also movable from the valve seat under the action of an opening force impaired by said armature of said solenoid; a coupling member moved by said armature and further transmitting the closing force to said valve member, said coupling member having a stop; a supporting part which is moveable relative to said coupling member and together with said valve member can be brought into contact with said stop; and a coupling spring which has one side supported on a lower portion of said coupling member and another side supported on an upper portion of said supporting part, said coupling spring bringing said supporting part together with said valve member into contact at said stop and said support part with said valve member are lifted away from said stop when said valve member is seated on said valve seat in its closed position, said coupling member being partially guided in said bore hole and having an outside radially extending damping collar with an end face which faces in direction of said valve seat and is movable into contact with a contact surface in said valve housing and extending substantially parallel to said end face of said damping collar so as to decelerate movement of said coupling member in a closing direction in a damped manner and increase the closing force in a damped manner until it achieves its final value when said end face of said damping collar contacts said contact surface of said valve housing.