CONTROL MAGNET FOR HYDRAULIC CONTROL SYSTEM VALVES

摘要

A control magnet for a valve of a hydraulic control system has an armature axially movable on a shaft mounted in bearings for axial displacement. A compression spring between one end of the shaft and an end of the casing surrounding the device has a stiffness low enough so as to push the armature partly out of the coil all the way to its rest position from any initial position. The armature has longitudinal bores and grooves so that the surrounding medium will not interfere with quick operating time of the magnet. An annular core extends part way inside the winding and surrounds the compression spring.