Air spring and damper unit having a pilot-controlled main valve
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United States of America Patent
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Sep 27, 2011
Grant Date -
Dec 18, 2008
app pub date -
Nov 7, 2006
filing date -
Dec 17, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An air spring and damper unit for vehicles has, as operating spaces, at least two pressure spaces filled with compressed air and connected to one another via flow channels. The pressure spaces have movable walls in the form of rolling bellows or folding bellows, wherein a pilot-controlled main valve which can be loaded with a control pressure on the low-pressure side is configured at least in one flow direction in a first flow channel.
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