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US 11,320,016 B2Granted
Vibration damper and vehicle
AssigneesThyssenkrupp Bilstein GmbH, thyssenkrupp AG
InventorFreddy Woenarta
Life of this patent
Estimating the term…
Abstract
A vibration damper may include an external tube and at least one internal tube. The external and internal tubes may be disposed in a coaxial manner relative to one another. An annular gap may exist between the external tube and the internal tube, and the annular gap may be fluidically connected to the internal tube. The annular gap may form a compensation chamber for receiving damper oil and damper gas for preloading of the damper oil in the compensation chamber. The vibration damper may further include a separating element disposed in the compensation chamber. The separating element may be axially displaceable and may separate the damper oil from the damper gas in a fluid-tight manner.
Claims15
A vibration damper comprising:
- an external tube;
- an internal tube, wherein the external and internal tubes are disposed in a coaxial manner relative to one another, wherein an annular gap between the external tube and the internal tube is fluidically connected to the internal tube, the annular gap forming a compensation chamber for receiving a damper oil and a damper gas for preloading of the damper oil in the compensation chamber;
- and
- a separating element disposed in the compensation chamber, wherein the separating element is axially displaceable and separates the damper oil from the damper gas in a fluid-tight manner, wherein the separating element comprises:
- a sealing lip that lies against both the external tube and the internal tube in a fluid-tight manner,
- an outer compression chamber that is configured radially externally between a body of the separating element and the external tube and that is delimited axially by the sealing lip, and
- an inner compression chamber that is configured radially internally between the body of the separating element and the internal tube and that is delimited axially by the sealing lip.
4 more elements
A vibration damper comprising:
- an external tube disposed along a longitudinal axis;
- an internal tube, wherein the external and internal tubes are disposed in a coaxial manner relative to one another, wherein an annular gap between the external tube and the internal tube is fluidically connected to the internal tube, the annular gap forming a compensation chamber for receiving a damper oil and a damper gas for preloading of the damper oil in the compensation chamber;
- a separating element disposed in the compensation chamber, wherein the separating element is axially displaceable and separates the damper oil from the damper gas in a fluid-tight manner, wherein between the internal tube and the external tube at least one solid portion of the separating element occupies a radial plane that extends orthogonally in all directions from the longitudinal axis;
- a first reinforcing disc that is received in a recess disposed in a first axial end face of the separating element at a radial midpoint between the internal tube and the external tube;
- and
- a second reinforcing disc that is received in a recess disposed in a second axial end face of the separating element at a radial midpoint between the internal tube and the external tube.
3 more elements
A vibration damper comprising of:
- an external tube disposed along a longitudinal axis;
- an internal tube, wherein the external and internal tubes are disposed in a coaxial manner relative to one another, wherein an annular gap between the external tube and the internal tube is fluidically connected to the internal tube, the annular gap forming a compensation chamber for receiving a damper oil and a damper gas for preloading of the damper oil in the compensation chamber;
- a separating element disposed in the compensation chamber, wherein the separating element is axially displaceable and separates the damper oil from the damper gas in a fluid-tight manner, wherein between the internal tube and the external tube at least one solid portion of the separating element occupies a radial plane that extends orthogonally in all directions from the longitudinal axis;
- a sealing lip that lies against at least one of the external tube or the internal tube in a fluid-tight manner;
- and
- at least one of:
- an outer compression chamber that is configured radially externally between a body of the separating element and the external tube and that is delimited axially by the sealing lip, or
- an inner compression chamber that is configured radially internally between the body of the separating element and the internal tube and that is delimited axially by the sealing lip,
- wherein the at least one of the outer compression chamber or the inner compression chamber is formed by two tapered surfaces of the separating element that are transverse to the longitudinal axis.
6 more elements
Dependencies are inferred from the claim text.