Patent ID: 7188823

Claim:
An electromagnetic valve actuating mechanism for an internal-combustion engine, comprising: an axially displaceable control element with an armature plate, for opening or closing a valve that is connected to the control element; first and second solenoids spaced apart from each other and arranged behind one another in a displacement direction of the control element, the first solenoid being arranged on a side of the armature plate close to the valve, and the second solenoid being arranged on a side of the armature plate away from the valve; first and second springs arranged behind one another in the displacement direction, the first spring being arranged on a side of the armature plate close to the valve, and the second spring being arranged on a side of the armature plate away from the valve, said springs holding the control element in a neutral position when the solenoids are currentless, the control element being deflectable from the neutral position by energizing the solenoids; and an adjusting element which supports an end of one of the two springs, which end is remote from the armature plate, wherein, prestressing of the springs can be adjusted, and thus the location of the neutral position of the control element can be changed, by adjustment of the adjusting element; the adjusting element is displaceably arranged in the displacement direction; an actuating device is provided which permits displacement of the adjusting element during operation of the valve actuating mechanism, and thus adjustment of the neutral position; the actuating device comprises, an actuation element which is displaceable along a second axis that is parallel and adjacent to a displacement axis of the control element; and a mechanical coupling, which translates said displacement of said actuation element alone said second axis, to a corresponding displacement of the adjusting element alone said displacement axis.