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:
Apr. 12, 2022
Filed:
Oct. 07, 2020
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Jörg Rösseler, Ruppichteroth, DE;
Aleksandar Knezevic, Eitorf, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 9/348 (2006.01); F16F 9/19 (2006.01);
U.S. Cl.
CPC ...
F16F 9/3485 (2013.01); F16F 9/19 (2013.01); F16F 2222/123 (2013.01); F16F 2228/004 (2013.01);
Abstract
A damping valve device having a support with a circumferential groove in which a radially expandable annular element together with a flow surface forms a restriction, which restriction transitions from an open position to a restriction position depending on the flow velocity of a damping medium, and the maximum expansion position of the annular element is determined/limited by a stop. The annular element moves in direction of the open position with a delay when the flow velocity decreases by means of a dead time element.