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:
Nov. 23, 2004
Filed:
Feb. 25, 2002
Armin Schymczyk, Solingen, DE;
Dirk Sickert, Bruehl, DE;
Visteon Global Technologies, Inc., Dearborn, MI (US);
Abstract
The invention relates to a hydraulically supported steering system with a steering gear, which is driven by a hydraulic piston/cylinder unit. The steering system includes a piston. The piston is axially displaced in a cylinder and divides the cylinder into two cylinder chambers. Each cylinder chamber is connected to a separate hydraulic line that serves both as pressure supply line and as return line. The hydraulic lines are also connected to a servo valve. A throttle mechanism, which features a variable flow resistance in at least one flow direction is arranged in at least one hydraulic line. The flow of hydraulic fluid through the self-regulating throttle mechanism determines the flow resistance in this flow direction, namely a higher flow resistance will occur at low flow and lower flow resistance at high flow.