AIR SPRING PISTON FOR A HEAVY-DUTY VEHICLE
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United States of America Patent
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Issued Date -
Jun 19, 2014
app pub date -
Dec 12, 2013
filing date -
Dec 13, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An air spring piston for a heavy-duty vehicle includes a top portion and a bottom portion. The top portion includes a bumper and a connecting means for an air spring bellows. The bottom portion is mounted on a structure of the vehicle. The top portion and bottom portion are connected to each other to form a piston chamber and include a bearing means for reacting bumper forces from the bumper to the bottom portion and to the structure of the vehicle on which the bottom portion is mounted. The piston chamber is in fluid communication with a bellows chamber of the air spring via an opening, wherein the geometry of the opening is such that during dynamic spring movements, the pressure in the piston chamber and the pressure in the bellows chamber are not equalized.
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