Electromagnetic valve having an adjustable magnetic flux
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United States of America Patent
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Jul 23, 2013
Grant Date -
Apr 26, 2012
app pub date -
May 19, 2010
filing date -
Jul 8, 2009
priority date (Note) -
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Abstract
An electromagnetic drive for a valve includes a housing and at least one electromagnetic circuit comprising a coil wound onto a coil carrier, a valve closing member, an armature movably supported between a first and a second end position which acts on the valve closing member. A device fixes the armature in a currentless state. A core is disposed at an end of the electromagnetic drive directed toward the valve closing member. A magnetizable reflux device has an adjusting bore and a circumferential recess in an area of the adjusting bore on a side facing the coil. An adjustment device has an adjusting screw and adjusts a magnetic force. The adjusting screw influences a course of magnetic field lines and is insertable into the adjusting bore in a direction of the armature. Supplying the coil with a current moves the armature into the first or the second end position.
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