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:
Feb. 23, 1993
Filed:
Mar. 02, 1990
Applicant:
Inventors:
Juergen Graner, Ludwigsburg, DE;
Hans Kubach, Korntal-Muenchingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F02M / ; H01F / ;
U.S. Cl.
CPC ...
25112916 ; 251 65 ; 25112921 ; 2395853 ;
Abstract
A magnet system for an outwardly opening magnet valve having a core winding, an armature carrying the valve body, and a permanent magnet disposed symmetrically to the winding. The closed magnet circuits of the electromagnet and permanent magnet partly overlap, and a ring of ferromagnetic material is associated with the permanent magnet 1 in the magnet circuit of the electromagnet, this ring absorbs half the flux I of the permanent magnet, and the magnet circuit for the electromagnet is dimensioned to one-half the permanent flux.