| 摘要 |
The invention concerns a hydraulic valve ( 1 ) that comprises an electromagnet ( 2 ) having an armature ( 3 ), and a valve part ( 4 ) having at least two valve seats ( 5, 6 ). The electromagnet ( 2 ) is formed by a hollow cylindrical plastic coil spool ( 8 ), a coil winding ( 10 ) received in the coil spool ( 8 ) and a magnet housing ( 11 ) surrounding the coil winding ( 10 ), the hollow cylinder of the coil spool ( 8 ) being configured as an armature space ( 14 ) for the armature ( 3 ), into which armature space ( 14 ) an upper pole ( 15 ) and a lower pole ( 16 ) of the electromagnet ( 2 ) extend. The valve part ( 4 ) is formed by a hollow cylindrical valve housing ( 18 ) that comprises a pressure delivery connection (P) on one front end, as well as a load connection (A) and a tank connection (T) arranged on its peripheral surface and, pressed into its hollow cylinder, two cup-shaped deep-drawn parts ( 23, 24 ) comprising the valve seats ( 5, 6 ). The hydraulic valve ( 1 ) can be inserted with the valve part ( 4 ) into a complementary valve reception and comprises a fixing flange ( 26 ) through which it can be screwed, pressure-medium tight, on the valve reception. In the invention, at least the valve housing ( 18 ) of the valve part ( 4 ) and/or the lower pole ( 16 ) of the electromagnet ( 2 ) is configured as a separate part that can be made without chip removal, and the lower pole ( 16 ) is made integrally in one piece with the fixing flange ( 26 ) of the hydraulic valve ( 1 ) and also serves as a reception socket for the valve housing ( 18 ).
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