Abstract: The pole geometry of an electromagnetic switch valve includes a cylindrical well on the pole member, which is penetrated by a cylindrical pin on the magnetic armature. This obtains a magnetic force-stroke curve that first extends proportionally starting out from the initial position of the magnetic armature and then rises progressively until the magnetic armature reaches the end position. Continuously increasing the energizing of the magnetic drive upon shifting of the magnetic armature from its initial position into its end position enables the noise formation upon the closing process of the valve to be reduced. Accordingly, the noise formation upon the opening process of the valve can be reduced when the energizing of the magnetic coil is reduced not abruptly but continuously.