Electromagnetic hydraulic pump, has piston including gland packing/seal resting on inner wall of recess such that hydraulic pressure is generated in center recess filled with hydraulic fluid i.e. oil

摘要

The pump (1) has an armature (26) axially displaced within a coil (2), where diameter (Da) of the armature is larger than diameter (Dk) of a piston (23). The piston is axially and rigidly connected to the armature, where the piston juts into a center recess (38) of a core of a pole (13). The piston has a gland packing/seal (24) that rests on an inner wall (42) of the recess such that hydraulic pressure is generated in the center recess filled with hydraulic fluid i.e. oil. The pole exhibits a front pin (14), which is sealed opposite a support housing (19).