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. 24, 2013
Filed:
Mar. 19, 2009
Wolfgang Hamers, Juelich, DE;
Andreas Feld, Duesseldorf, DE;
Wolfgang Hamers, Juelich, DE;
Andreas Feld, Duesseldorf, DE;
ThyssenKrupp Bilstein Suspension GmbH, Ennepetal, DE;
Abstract
A hydraulic oscillation damper has a piston rod with a piston that is inserted into a damper tube filled with damping fluid, and divides the damper tube into first and second working chambers. First and second continuously adjustable damping valves are disposed in a common housing that is attached to the damper tube, and are connected hydraulically in parallel with the working piston. The housing has a first hydraulic chamber that is connected to the first working chamber via a first bore, and a second hydraulic chamber that is connected to the second working chamber via a second bore. A flow guiding element, which separates the two hydraulic chambers, guides the damping fluid flow to the first or second damping valve in response to a retraction or extension movement of the piston.