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:
Jun. 21, 1994
Filed:
Aug. 14, 1992
Axel Sauer, Nurtingen, DE;
Alfred Trzmiel, Grafenberg, DE;
Hydraulik-Ring Antriebs- und Steuerungstechnik GmbH, Nurtingen, DE;
Abstract
A proportional magnet valve is provided with which manufacturing tolerances can be equalized and balanced by having an armature with an adjustment member axially adjustable. Consequently it is made possible to adjust every magnet valve that is mass produced so that a predetermined coil current corresponds to a predetermined magnet force and with that corresponding to a predetermined working pressure of a magnet valve. Because of adjustment capability of the armature, no close or narrow manufacturing tolerances must be maintained to permit cost advantageous production of the magnet valve. Also, an exchange of a magnet valve upon wear or damaging thereof is possible in a simple and straight forward manner because the novel magnet valve can be adjusted exactly without difficulty. Consequently, a predetermined pressure-current-characterizing line is maintained so that, independently of tolerance position of the magnetic force and the tolerances of hydraulically effective diameter of the structural parts, always the same pressure-current-characterizing line can be attained.