US 12,215,755 B2
Restriction for a vibration damper
Jörg Rösseler, Ruppichteroth (DE); and Aleksandar Knezevic, Eitorf (DE)
Assigned to ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed on Jul. 16, 2021, as Appl. No. 17/377,461.
Claims priority of application No. 102020209113.7 (DE), filed on Jul. 21, 2020.
Prior Publication US 2022/0025956 A1, Jan. 27, 2022
Int. Cl. F16F 9/512 (2006.01); F16F 9/19 (2006.01); F16F 9/36 (2006.01); F16F 9/48 (2006.01)
CPC F16F 9/512 (2013.01) [F16F 9/19 (2013.01); F16F 9/369 (2013.01); F16F 9/48 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A restriction for a vibration damper, comprising a valve body of a variable diameter, which is guided by a valve support, and, starting from a passage position, the valve body adopts a restricting position as a function of a speed of flow of a damping medium by a radial closing movement in a direction of a flow guiding surface, wherein the closing movement of the valve body is controlled by at least one damping device acting against the valve body as the valve body moves in the direction of the flow guiding surface, wherein the damping device is movable to an engaging position from a home position of the valve body.