Vibration damper and vehicle
AssigneesThyssenkrupp Bilstein GmbH, thyssenkrupp AG
InventorFreddy Woenarta
Life of this patent
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Abstract
A vibration damper for a motor vehicle having at least one damper tube, which includes at least one damper fluid, a piston rod having a piston, which is guided axially in the damper tube, and at least one valve unit. The valve unit includes at least three flow paths for the damper fluid. The first flow path includes a first valve for a first damper setting. The second flow path includes a second valve for a second damper setting and a variable throttle. The third flow path includes a check valve, wherein the second damper setting is softer than the first damper setting and the cross section of the second flow path is adjustable at least partially by the variable throttle.
Claims13
A vibration damper for a motor vehicle, comprising:
- at least one damper tube provided with damper fluid;
- a piston rod comprising a piston guided axially in the damper tube;
- and
- at least one valve unit comprising at least three flow paths for the damper fluid:
- a first flow path comprising a first valve configured to generate a first damper setting,
- a second flow path comprising a second valve configured to generate a second damper setting and a variable throttle, and
- a third flow path comprising a check valve,
- wherein the second damper setting is softer than the first damper setting and the cross section of the second flow path is adjustable at least partially by the variable throttle.
A vibration damper for a motor vehicle, comprising:
- at least one damper tube provided with damper fluid;
- a piston rod comprising a piston guided axially in the damper tube;
- and
- at least one valve unit that comprises at least three flow paths for the damper fluid:
- a first flow path comprising a first valve configured to generate a first damper setting,
- a second flow path comprising a second valve configured to generate a second damper setting and a variable throttle, and
- a third flow path comprising a check valve, wherein the second damper setting is softer than the first damper setting and the cross section of the second flow path is adjustable at least partially by the variable throttle,
- wherein the first valve comprises at least one first spring element and the second valve comprises at least one second spring element, the spring stiffness of the first spring element being greater than the spring stiffness of the second spring element.
Dependencies are inferred from the claim text.