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:
May. 19, 2020

Filed:

May. 30, 2018
Applicant:

Zf Friedrichshafen Ag, Friedrichshafen, DE;

Inventors:

Thomas Manger, Wasserlosen, DE;

Bernd Zeissner, Volkach, DE;

Stefan Schmitt, Gochsheim, DE;

Lukas Ruhmann, Memmelsdorf, DE;

Assignee:

ZF Friedrichshafen AG, Friedrichshafen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/32 (2006.01); F16F 9/46 (2006.01); F16F 9/06 (2006.01); F16F 9/36 (2006.01);
U.S. Cl.
CPC ...
F16F 9/325 (2013.01); F16F 9/062 (2013.01); F16F 9/369 (2013.01); F16F 9/46 (2013.01);
Abstract

An adjustable vibration damper comprises at least one adjustable damping valve for each working direction. A fluid connection between a compensation space and a working space is controlled by a check valve which has a check valve body and which is hydraulically connected in parallel with the adjustable damping valve. The check valve is held by an intermediate tube which forms the fluid connection and which has a connection orifice to the connected adjustable damping valve. The check valve body of the check valve is supported at least indirectly in the region of the connection orifice.


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