Electromagnetic hydraulic valve, in particular a 3/2-way directional control valve, for controlling a variable drive train of an internal combustion engine

Abstract

The invention relates to a hydraulic valve (), which comprises an electromagnet () with a magnet armature () as well as the valve part () with at least two valve seats (). The electromagnet () is formed by a hollow-cylindrical plastic coil former (), a coil winding () which is accommodated in the latter and a magnet housing () which encloses the coil winding (), the hollow cylinder of the coil former () being formed as an armature space () of the magnet armature (), into which an upper magnet pole () and a lower magnet pole () protrude. The valve part () is formed by a hollow-cylindrical valve housing (), which has a pressure connection (P) at the end as well as a consumer connection (A) and a tank connection (T), respectively arranged in its lateral surface (), in the hollow cylinder of which housing two cup-shaped deep-drawn parts () with the valve seats () are pressed. The hydraulic valve () can be inserted into a complementary valve receptacle by the valve part () and has a fastening flange (), by means of which it can be screwed on the valve receptacle in a manner sealing the pressure medium. According to the invention, at least the magnet housing () and the lower magnet pole () of the electromagnet () and/or the valve housing () and the fastening flange () of the hydraulic valve () are respectively formed as one-part integral components and as individual parts which can be produced without machining.