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:
Aug. 18, 1998
Filed:
Jul. 08, 1997
Hans-Willi Gerigk, Oberhausen, DE;
TRW Fahrwerksysteme GmbH & Co. KG, Dusseldorf, DE;
Abstract
In order to improve a steering valve of the relevant type such that it is of simple and economical design and without requiring increases in design length and so that it is not sensitive to rotational vibrations, a steering valve is designed to supply a servoelement with hydraulic pressure, consisting of an input shaft located in a housing, an output shaft, a centering spring element and a valve element, such that the steering valve has at least one chamber moving in a circular motion, essentially coaxial and supplied with hydraulic pressure, in which at least one piston element can move on an essentially circular path, where the chamber and/or the piston element form a portion of a bearing located between one of the shafts and the casing, or are connected axially parallel to it.