Patent ID: 6161813
Filing Date: 2000-12-19
Classification: F02M

Abstract:
A solenoid valve (30) for controlling an injection valve of a fuel injection device, comprising an electromagnet (29) with a magnetic pole (61), a valve needle whose opening and closing are controlled by said electromagnet, an armature (28), and a valve closing member (25) that is moved with the armature and said valve closing member is acted on in a closing direction by a valve closing spring (31), said valve closing member cooperates with a valve seat (24), wherein the armature is moved in relation to an intermediary part embodied as an armature bolt (27), said intermediary part is connected to the valve closing member, a slider (34) fixedly disposed in the solenoid valve, said armature bolt (27) is guided to slide in said slider on movement of said armature bolt to a closed position of said valve closing member (25) though an action of its inertial mass away from a pole-end stop on the armature bolt (27), a damping device is provided, which cooperates with the armature and a stationary part, with which a post-pulse oscillation of the armature (28) is damped in a dynamic motion, the stationary part of the dampening device is an end face of the slider or a part supported in front of the slider and embodied as a disk, and the armature contacts with an end face when the armature is dynamically moved, and the armature is embodied as an armature plate that cooperates with the magnetic pole (61), with a first end face oriented toward the magnetic pole (61) of the electromagnet and a second end face oriented toward the stationary part, which, together with the stationary part, constitutes the dampening device.