Magnet system

Details Magnet system Magnet system

1991-05-20

1992-11-10

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Including solenoid

251 65, 25112915, 25112922, F16K 3106

Patent

active

051617790

ABSTRACT:
A magnet system for magnet valves for controlling liquids including an electromagnet and a permanent magnet that produces magnetic fluxes, the magnetic fluxes of which are oriented opposite one another in a working air gap formed between a free-floating armature and a magnet pole. To attain a course of the force of attraction acting upon the armature that becomes negative beyond a certain excitation of the electromagnet, and to reduce the trigger power for the electromagnet, a magnetic opposite pole is disposed on the side of the armature remote from the working air gap, forming a second working air gap, which is coupled to the magnet housing, optionally via a stray air gap, via a flow guide element annularly engaging the permanent magnet.

REFERENCES:
patent: 4403765 (1983-09-01), Fisher
patent: 4890815 (1990-01-01), Hascher-Reichl et al.

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