Damping-valve device with a progressive damping- force characteristic curve
AssigneeZF Friedrichshafen AG
InventorsJörg Rösseler, Aleksandar Knezevic, Stefan Liehmann
Life of this patent
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Abstract
A damping valve device for a vibration damper has a restriction in connection with a valve element movable from an open position into a restriction position depending on the flow velocity of a damping medium inside the restriction. 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. The annular groove is constructed as a pressure space having at least one inflow orifice and at least one outflow orifice. The valve element is positioned at a radial distance from an annular groove base by centering elements.
Claims5
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.
Dependencies are inferred from the claim text.