The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2004
Filed:
Jun. 28, 2002
Rainer Haeberer, Bretten, DE;
Andreas Wengert, Oppenweiler-Reichenberg, DE;
Ralf Maier, Schwaebisch-Gmuend, DE;
Stefan Haug, Waldenbuch, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A solenoid valve is for controlling an injection valve of an internal combustion engine, including a housing part, an electromagnet having a magnetic coil and a magnetic core, an armature acted upon by a valve spring and axially movable between the electromagnet and a valve seat, and a control valve member moved by the armature and cooperating with the valve seat for opening and closing a fuel passage, in which the armature is situated in the housing part movable in the radial direction free from mechanical guiding means. A further development provides that, when a current is applied to the electromagnet,the armature may be aligned in the radial direction, by magnetic reluctance forces then acting upon the armature, into a centrical position with reference to the centerline of the electromagnet.