Patent ID: 8490944

Claim:
An electromagnetic drive for a valve, the electromagnetic drive comprising: a housing; and at least one electromagnetic circuit comprising: a coil wound onto a coil carrier, a valve closing member, an armature movably supported between a first end position and a second end position, the armature being configured so as to act at least indirectly on the valve closing member, a device configured to fix the armature in a currentless state, at least one core, the at least one core being disposed at an end of the electromagnetic drive directed toward the valve closing member, at least one magnetizable reflux device having an adjusting bore and a circumferential recess in an area of the adjusting bore on a side facing the coil, and at least one adjustment device having an adjusting screw, the at least one adjustment device being configured to adjust a magnetic force, and the adjusting screw being configured to influence a course of magnetic field lines and to be insertable into the adjusting bore in a direction of the armature, wherein supplying the coil with an electric current causes the armature to move into the first end position or into the second end position.