Exhaust plenum for distributing exhaust gas uniformly through a catalyst module
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United States of America Patent
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Issued Date -
Feb 17, 2011
app pub date -
Dec 12, 2005
filing date -
Dec 12, 2005
priority date (Note) -
Abandoned
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Abstract
A plenum is provided upstream from a catalyst module and downstream from a plurality of exhaust ports of a marine engine. The plenum is provided with a cross-sectional area that induces exhaust gas to slow as it passes from the plurality of exhaust ports into the plenum. This slowing of the velocity of exhaust gas improves the probability that the exhaust gas will be more evenly distributed across the inlet surface of the catalyst module.
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