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.

Date of Patent:
Mar. 05, 2002

Filed:

Aug. 03, 1999
Applicant:
Inventors:

Ulrich Asbrand, Altdorf, DE;

Jürgen Class, Illigen, DE;

Assignee:

DaimlerChrysler AG, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B 1/06 ; F16K 1/738 ;
U.S. Cl.
CPC ...
F01B 1/06 ; F16K 1/738 ;
Abstract

A hydraulic power steering system, in which the servomotor also acts as a steering damper. Damper valves are arranged on hydraulic lines between the servomotor and servo valve. In order to compensate the temperature-dependent viscosity of the hydraulic medium, throttle elements of the damper valves cooperate with spring arrangements operating as a function of temperature (bimetallic springs, springs consisting of form memory alloy).


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