Patent ID: 9016660
Filing Date: 2015-04-28
Classification: B60T,F16K

Abstract:
1. An electromagnetic valve for use in controlling fluid flow between first and second passageways in a hydraulic valve block, comprising: a valve body defining a central axis and having a central opening therethrough, the valve body having a lower end adapted to be inserted into a bore of the valve block; a hollow valve dome attached to an upper end of the valve body; an armature axially moveable within the valve dome; a spring for biasing the armature in one axial direction; a closing element coupled to a lower end of the armature; an electromagnetic coil coaxially surrounding the armature and operable to effect axial movement of the armature in an axial direction opposite the one axial direction; a valve seat member carried by a lower end of the valve body and having an orifice providing fluid flow between the first and second valve block passageways, the valve seat member defining a valve seat surrounding the orifice and cooperating with the closing element for selectively closing the orifice, characterized in that: the valve seat member is formed as a deep drawn part and includes a tubular inner wall defining an inner tubular portion concentrically arranged with a tubular outer wall defining an outer tubular portion, the inner tubular portion and the outer tubular portion connected by a radially extending wall, an inside surface of the outer tubular portion engaging an outside surface of the lower end of the valve body, one end of the inner tubular portion defining a valve seat.