| 摘要 |
The invention relates to a hydraulic valve ( 1 ), which comprises an electromagnet ( 2 ) with a magnet armature ( 3 ) as well as the valve part ( 4 ) with at least two valve seats ( 5, 6 ). The electromagnet ( 2 ) is formed by a hollow-cylindrical plastic coil former ( 8 ), a coil winding ( 10 ) which is accommodated in the latter and a magnet housing ( 11 ) which encloses the coil winding ( 10 ), the hollow cylinder of the coil former ( 8 ) being formed as an armature space ( 14 ) of the magnet armature ( 3 ), into which an upper magnet pole ( 15 ) and a lower magnet pole ( 16 ) protrude. The valve part ( 4 ) is formed by a hollow-cylindrical valve housing ( 18 ), 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 ( 19 ), in the hollow cylinder of which housing two cup-shaped deep-drawn parts ( 23, 24 ) with the valve seats ( 5, 6 ) are pressed. The hydraulic valve ( 1 ) can be inserted into a complementary valve receptacle by the valve part ( 4 ) and has a fastening flange ( 26 ), 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 ( 11 ) and the lower magnet pole ( 16 ) of the electromagnet ( 2 ) and/or the valve housing ( 18 ) and the fastening flange ( 26 ) of the hydraulic valve ( 1 ) are respectively formed as one-part integral components and as individual parts which can be produced without machining.
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