Granted Patent B2

US 12,650,154 · App. 18/276,897 · Granted Jun 9, 2026

Inventors: Jörg Rösseler (Ruppichteroth, DE); Aleksandar Knezevic (Eitorf, DE); Stefan Liehmann (Hofheim i. UFr., DE)

Assignee: ZF FRIEDRICHSHAFEN AG

F16F9/18

Abstract

Claims (11)

1 . A damping valve device for a vibration damper, comprising:

a restriction in connection with a valve element that is movable from an open position into a restriction position based on a flow velocity of a damping medium inside the restriction,

wherein the valve element, as a variable-diameter annular element, moves in closing direction with increasing flow velocity of the damping medium within an annular groove of a valve support,

wherein the annular groove is configured as a pressure space having at least one inflow orifice and at least one outflow orifice, and

wherein the valve element is positioned at a radial distance from an annular groove base by centering elements formed by segments supported at the annular groove base,

wherein the segments are combined to form a support ring, and

wherein the support ring forms the valve support with at least one spacer sleeve and two cover disks.

2 . The damping valve device according to claim 1 , wherein the segments have a smaller axial height than that of the pressure space.

3 . The damping valve device according to claim 1 , wherein a lateral surface of the valve element carries the segments.

4 . The damping valve device according to claim 3 , wherein the lateral surface of the valve element has receiving openings for the segments.

5 . Damping valve device according to claim 1 , wherein at least one side surface of the annular groove has centering elements for the valve element.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (32)