Hybrid valve for attenuation of low frequency noise
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United States of America Patent
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Jun 28, 2016
Grant Date -
Mar 7, 2013
app pub date -
Oct 31, 2012
filing date -
Mar 29, 2007
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Abstract
A hybrid valve assembly for an exhaust system includes an exhaust tube having a bore defining an exhaust flow path. A vane is mounted within the bore and is moveable between an open position and a closed position. A resilient member biases the vane toward the closed position. A valve actuator has an ON position where movement of the vane is actively controlled by the valve actuator and an OFF position where movement of the vane is passively controlled by exhaust gas flow.
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