Electromagnetic valve has spring element with non linear, preferably progressive characteristic acting on armature in addition to spring; spring element opposes magnetic force

摘要

The valve has a housing for a movable valve element with an armature that performs an axial movement towards a core depending on the electromagnetic stimulation of a valve coil and a spring that positions the armature at a defined distance from the core with no stimulation applied. A spring element with a non linear, preferably progressive characteristic acts on the armature, whereby the spring element opposes the magnetic force. The valve has a housing for a movable valve element with an armature (5) that performs an axial movement towards a core (3) depending on the electromagnetic stimulation of a valve coil and a spring (6) that positions the armature at a defined axial distance from the core with no stimulation applied so the armature is separated from the core by a gap. In addition to the spring, a spring element with a non linear, preferably progressive characteristic acts on the armature, whereby the spring element opposes the magnetic force.