Patent ID: 8348230

Claim:
A solenoid valve having a valve cartridge, which cartridge includes a pole core, a valve insert connected to the pole core, an armature, which is guided axially movably inside the valve insert and is coupled with a primary closing element, and a valve body connected to the valve insert, which valve body, with the primary closing element, forms a primary valve disposed between at least one first flow opening and a second flow opening, and via an axial motion of the armature and of the primary closing element, the primary valve is opened counter to the force of a restoring spring and closed by the force of the restoring spring, the primary closing element being embodied as a slide element which is guided axially movably inside an inner bore of the valve body, the slide element and the armature being connected to one another and embodied as pressure-equalized by a compensation bore, and the slide element being movable into an opening position by means of a linear axial opening motion of the armature and being movable into a closing position by means of a linear motion by the restoring spring via the armature, wherein the slide element is embodied as a plastic part having a first sealing lip and a second sealing lip which seal off the primary valve from the inner bore of the valve body, and wherein the first sealing lip and the second sealing lip are disposed such that via a pilot pressure, applied to the at least one first flow opening, effect an automatic sealing between the first sealing lip and the second sealing lip, and the inner bore of the valve body.