Air spring elliptical piston
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United States of America Patent
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Jun 7, 2005
Grant Date -
N/A
app pub date -
Sep 17, 2003
filing date -
Sep 20, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A side load compensating air spring piston having an elliptical cross-section. The side load compensating air spring comprises an air spring sleeve forming a chamber and having a rolling lobe. One end of the sleeve is attached to a tilted end cap for side load compensation. The other end of the sleeve has a rolling lobe engaged with a piston elliptical outer surface. The piston elliptical outer surface is disposed at a 90° angle to an elliptical stress distribution in the sleeve, thereby rendering the stress distribution uniform in the sleeve rolling lobe portion as it rolls on the piston.
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