Patent · US Active

Electromagnetic valve having an adjustable magnetic flux

US8490944B2 · kind B2 · utility

0Cited by

13References

8Claims

0Family size

Assignee

PIERBURG GMBH · DE

Inventors

Werner Buse · Kaarst, DE
Alvito Fernandes · Leverkusen, DE

Key dates

Filing date	May 19, 2010
Grant date	Jul 23, 2013
Priority date	—
Expiry date	May 19, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH01F7/13
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.