US 8,123,193 B2 · Magnetic valve

Abstract

The invention relates to a magnetic valve having a magnetic assembly and a capsule. An armature is disposed in the capsule and a valve insert is inserted in the capsule. A tappet is guided in a displaceable manner within the inner bore of the valve insert and sealingly immerges in a sealing seat. The valve insert is arranged at a distance from the armature via an adjustable air gap. According to the invention, the sealing seat is arranged in a sleeve which itself is disposed inside the capsule. The sleeve has at least one opening through which adjusting elements act upon the valve seat in order to regulate the magnetic flux generated by the magnetic assembly. The air gap between the valve insert and the armature is variable, whereby the adjusting elements either move the valve insert in axial direction towards the armature in order to increase the magnetic flux or move the valve insert away from the armature in order to reduce the magnetic flux.

Claims20

Dependent claims

A magnetic valve, comprising:

a magnet assembly;
a capsule;
an armature disposed in the capsule;
a valve insert thrust into the capsule;
a tappet guided movably in an inner bore of the valve insert;
a sealing seat which tappet dips in sealing fashion into;
an adjustable air gap disposed between and spacing apart the valve insert from the armature;
and
a sleeve having the sealing seat disposed therein, the sleeve being fitted into the capsule and having at least one opening, wherein an adjusting element for adjusting a magnetic flux generated by the magnet assembly acts on the valve insert through the at least one opening in the sleeve, as a result of which the air gap between the valve insert and the armature is variably adjusted, and the adjusting element, to increase the magnetic flux, moves the valve insert axially toward the armature.

6 more elements

Dependencies are inferred from the claim text.

Magnetic valve

Life of this patent

Magnetic valve

Life of this patent

Abstract

Claims20