Electromagnetic actuating unit of a solenoid valve, and method for the production of such an actuating unit
AssigneeSchaeffler Technologies AG & Co. KG
InventorsChristoph Ross, Josef Groeschel
Life of this patent
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Abstract
An electromagnetic actuating unit of a hydraulic control valve which has an armature disposed inside an armature chamber in an axially displaceable manner, and a pole core disposed in a recess. The pole core limits the armature chamber in a direction of movement of the armature. The geometry of the armature serves to adjust the characteristic line of the electromagnetic actuating unit.
Claims11
An electromagnetic actuating unit of a solenoid valve, comprising:
- an armature, which is arranged within an armature space in an axially displaceable manner;
- and
- a pole core which is arranged in a holder and bounds the armature space in one direction of movement of the armature,
- wherein a geometry of the armature is selected in such a way that nonlinearities in a force/displacement characteristic curve of the electromagnetic actuating unit are reduced as a result.
A method for the production of an electromagnetic actuating unit of a hydraulic directional valve having an armature, which is arranged within an armature space in an axially displaceable manner, and a pole core which is arranged in a holder and hounds the armature space in one direction of movement of the armature, comprising the following steps:
- defining a desired force/displacement characteristic curve of the electromagnetic actuating unit;
- determining a geometry of the armature which, in connection with the other magnetically active components of the actuating unit, leads to the defined characteristic curve;
- production of the armature with the geometry determined above;
- assembly of the electromagnetic actuating unit.
Dependencies are inferred from the claim text.