HYDRAULIC VIBRATION DAMPER
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United States of America Patent
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-
N/A
Issued Date -
Dec 3, 2009
app pub date -
Jan 30, 2008
filing date -
Feb 2, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A hydraulic vibration damper has a cylinder that is filled with a damping medium, displaceably accommodates a working piston disposed on a piston rod, through which the damping medium can flow, and is divided by the piston into two chambers. There is an equalization chamber that is connected with the working chamber, a pressure channel connected with the chamber on the piston rod side, and a controllable setting valve module connected with the pressure channel and the equalization chamber. The setting valve module has a pilot valve arrangement having a pilot pressure chamber and a pilot valve. The pilot pressure chamber is hydraulically separated from the main valve, and is connected with a valve chamber by a connection channel and at least one throttle point. A pressure element counteracts opening of the main valve, and pressure that acts on the main valve can be varied by the pilot valve.
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