Shock absorber
AssigneeGrammer AG
InventorErwin HALLER
Life of this patent
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Abstract
A shock absorber is provided having a housing, an inner tube, a piston rod, a piston which divides the interior of the inner tube into a lower chamber and an upper chamber, a first valve arrangement on the piston, a second valve arrangement at the upper end of the inner tube, and a third valve arrangement at the lower end of the inner tube. The shock absorber includes a first connection element on the lower chamber of the inner tube and a second connection element on the upper chamber of the inner tube, to connect a means for controlling the flow resistance of the working medium in the first valve arrangement and an ascending pipe which projects into the working medium received in the housing and by which working medium can be transferred from the housing acting as a tank into the upper chamber of the inner tube.
Claims10
A shock absorber comprising:
- a) a housing;
- b) an inner tube arranged in the housing;
- c) a piston rod immersing into the inner tube;
- d) a piston which is arranged at the end of the piston rod immersing into the inner tube and which divides the interior of the inner tube into a lower chamber and an upper chamber;
- e) a first valve arrangement, which is arranged on the piston and by which a working medium received in the inner tube can flow out of the lower chamber into the upper chamber and vice versa, as the piston travels in the inner tube;
- f) a second valve arrangement, which is arranged at the upper end of the inner tube and by which the working medium received in the inner tube can only flow out of the upper chamber into the interior of the housing acting as a tank for the working medium, as the piston travels in the inner tube;
- g) a third valve arrangement, which is arranged at the lower end of the inner tube and by which the working medium received in the interior of the housing acting as a tank can only flow into the lower chamber out of the interior of the housing acting as a tank, as the piston travels in the inner tube,
- wherein a first connection element is provided on the lower chamber of the inner tube and a second connection element is provided on the upper chamber of the inner tube, to connect a means for controlling the flow resistance of the working medium in the first valve arrangement , and arranged at the upper end of the inner tube, is an ascending pipe which projects into the working medium received in the housing and by which working medium can be transferred from the housing acting as a tank into the upper chamber of the inner tube.
Dependencies are inferred from the claim text.