Patent ID: 6837478
Filing Date: 2005-01-04
Classification: B60T,F15B,F16K,H01F

Abstract:
1. Electromagnet valve, comprising: a valve housing, a valve closure member movably guided in said valve housing, a magnet armature fitted to the valve closure member and executing a stroke movement in the direction of a magnet core arranged in the valve housing in dependence on the electromagnetic excitation of a valve coil fitted on the valve housing, and a spring which, in the electromagnetically non-excited valve position, positions the magnet armature at a defined axial distance from the magnet core so that the magnet armature is separated from the magnet core by an interspace, wherein in addition to said spring, a spring element acts on the magnet armature which has a non-linear characteristic curve, wherein said spring element counteracts a magnet force created by said valve coil, wherein the magnet core and the magnet armature includes either convexly or concavely shaped parallel end surfaces, and wherein said spring element is plate shaped and abuts on an end surface of the magnetic armature and an end surface of the magnet core by way of a lever arm.