Oscillation damper having a backpack valve
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United States of America Patent
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Dec 24, 2013
Grant Date -
Feb 24, 2011
app pub date -
Mar 19, 2009
filing date -
Mar 20, 2008
priority date (Note) -
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Abstract
A hydraulic oscillation damper has a piston rod with a piston that is inserted into a damper tube filled with damping fluid, and divides the damper tube into first and second working chambers. First and second continuously adjustable damping valves are disposed in a common housing that is attached to the damper tube, and are connected hydraulically in parallel with the working piston. The housing has a first hydraulic chamber that is connected to the first working chamber via a first bore, and a second hydraulic chamber that is connected to the second working chamber via a second bore. A flow guiding element, which separates the two hydraulic chambers, guides the damping fluid flow to the first or second damping valve in response to a retraction or extension movement of the piston.
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