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:
Sep. 15, 2020
Filed:
Sep. 11, 2015
Thyssenkrupp Bilstein Gmbh, Ennepetal, DE;
Thyssenkrupp Ag, Essen, DE;
Wolfgang Hamers, Jülich, DE;
Tobias Lenz, Nümbrecht, DE;
THYSSENKRUPP BILSTEIN GMBH, Ennepetal, DE;
THYSSENKRUPP AG, Essen, DE;
Abstract
A method for operating a controllable shock absorber may involve damping movement of a valve body by loading the valve body with a back pressure on an outflow side. Further, the controllable shock absorber may include a cylinder tube, a piston within the cylinder tube that divides the cylinder tube into two working spaces and includes a couple fluid leadthroughs connecting the working spaces, and first and second valve assemblies for damping piston movement in first and second actuating directions that are disposed on the leadthroughs. Each valve assembly may have a pilot control chamber and a valve plate that is either seated on or spaced apart from a valve seat in closed and open valve positions. Each valve plate can be prestressed closed by pressure loading the pilot control chamber. The pressures of the pilot control chambers can be set by a pilot control valve that comprises a movable valve body. As a result, an outflow cross section between the pilot control chambers and the working spaces can be set. The valve body may be loaded on an outflow side with a back pressure, as a result of which movement of the valve body is damped.