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:
Feb. 22, 2022
Filed:
Mar. 04, 2019
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Jörg Rösseler, Ruppichteroth, DE;
Aleksandar Knezevic, Eitorf, ME;
Steffen Heyn, Niederwerrn, DE;
Guido Holtmann, Windeck, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 9/34 (2006.01); F16K 47/00 (2006.01); F16F 9/348 (2006.01); F16F 9/18 (2006.01);
U.S. Cl.
CPC ...
F16F 9/3485 (2013.01); F16F 9/3481 (2013.01); F16K 47/00 (2013.01); F16F 9/185 (2013.01); F16F 9/341 (2013.01); F16F 2222/12 (2013.01); F16F 2232/08 (2013.01);
Abstract
A damping valve includes a damping valve body with an annular groove which has a base and which is limited by an inner valve seat surface and an outer valve seat surface for at least one valve disk. The base of the annular groove has a maximum distance from the valve seat surface along a circumferential area and has a minimum axial distance from the valve seat surface in another circumferential area.