Patent ID: 7243899
Filing Date: 2007-07-17
Classification: B60T

Abstract:
1. In a valve arrangement having a valve element, which is disposed longitudinally movably in a valve insert and cooperates with a valve seat embodied in a valve body, which valve element in the installed position is acted upon, by a spring assembly disposed between the valve body and the valve insert, with a force component acting in the opening direction of the valve seat and is actuatable in the closing direction of the valve seat via an electromagnetic actuator, the spring assembly and at least one part of the valve element being disposed in a valve chamber defined by the valve insert in the region of the valve seat, and an end, facing away from the valve chamber of the valve element is operatively connected to an armature, the improvement wherein an end face of the armature, facing toward the valve insert, and/or an end face of the valve insert, facing toward the end face of the armature, is embodied with a surface profile such that a flow cross section, defined by the end faces, varies at least regionally in the radial direction and/or in the circumferential direction of the armature, wherein the end face of the armature and/or the end face of the valve insert is embodied with circular channels extending in the circumferential direction of the armature and wherein the circular channels are spaced apart from one another concentrically in the radial direction.