Solenoid valve has pilot opening designed on seat bush located in main piston in whose inner bore transmission member is guided

摘要

A solenoid valve has a main piston (2) via which a connection between two unions can be controlled and which has a pilot opening (44) that can be closed via a magnet-operated pilot valve body (2). The pilot opening is designed on a seat bush (35) located in the main piston in whose inner bore a transmission member is guided. Via this the pilot valve body can be lifted from its valve seat with the aid of an excitation of the solenoid (6) or the force on a control spring (40). In the seat bush or in the transmission member are designed axial channels (47) for the control oil.