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:
Dec. 16, 1997
Filed:
Jun. 29, 1995
Applicant:
Inventor:
Arnd Pfeifer, Willich, DE;
Assignee:
TRW Fahrwerksysteme GmbH & Co. KG, Dusseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F15B / ;
U.S. Cl.
CPC ...
13762524 ; 9137 / ; 180421 ; 13762523 ;
Abstract
In order to be able to more simply manufacture and center a steering valve consisting of an input shaft, an output shaft, a valve sleeve surrounding the input shaft, and a reaction arrangement to which pressure can be applied to generate a centering moment, where the steering valve can simultaneously be of a shorter configuration than a conventional steering valve, it is proposed that the hydraulic lines for the system or operating pressure, as well as for tank return, be formed between the input shaft (2) and valve sleeve (5) and that the reaction arrangement (6) exerts a radial pressure acting between the input shaft (2) and the valve sleeve (5).