Abstract: A hydraulic slide valve with electromagnetic actuation is proposed, the magnet armature of which is embodied by a hollow-cylindrical tube element. The lower bearing location of the magnet armature is provided by the slide of the hydraulic valve, which with a corresponding step engages the inner bore of the armature; the upper bearing location is embodied by a slide element attached to a stationary cover plate.

Abstract: An electromagnetic activation device for valves using a hinged armature magnet. The hinged armature itself is attached to the free end of a leaf spring fastened on one end on the magnetic body and extends into the magnetic body. This leaves at least two guide air gaps (S.sub.1, S.sub.2) with specified measurements. In this manner an advantageous magnetic efficiency with only minimal friction losses is achieved and the electromagnetic activation device can be used advantageously with anti-blocking control devices in motor vehicle brake system.