Hydac Electronic Gmbh

Hydac Fluidtechnik Gmbh

Andreas Bereschka

Philipp Hilzendegen

Martin Bill

Franz-Rudolf Hell

An electromagnetic actuating apparatus, in particular a proportional magnet or switching magnet, includes a magnet armature () guided for axial movement in a pole tube (). The pole tube is at least partially surrounded by a coil winding and is adjoined by a pole core () via a separating region () forming a magnetic decoupling. On energization of the coil winding (), a magnetic force acts on the armature () to move the armature () in the direction of the pole core () within a travel area. At least one insert () of ferromagnetic material with a preset axial thickness is between the armature () and the pole core () to shorten, as desired, the axial length of the travel area.

Electromagnetic actuating apparatus

A solenoid valve for controlling a fluid has a first housing part () and an axial guide () facing inwards for an armature () that can be displaced in the axial guide () under the effect of a solenoid () that at least partially surrounds the exterior of the first housing part (). A return spring () and a closing element () impact a valve closing element (). A second housing part () is arranged coaxially to the first housing part (). The first housing part () has a reduced wall portion () that faces inwards towards the armature () and the second housing part () and that effects a magnetic separation of the two housing parts () to at least some extent.

Solenoid valve

A displacement sensor system for solenoid coils includes at least two primary coil windings arranged in line on a main coil body to form a primary winding. A secondary coil winding is arranged on top of each primary coil winding to form a secondary winding. This displacement sensor system is configured in such a way that it can be produced in an economical manner and with a reduced length.

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Bousbach, France

Andreas Bereschka