Rotatable propeller driven engine exhaust system
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United States of America Patent
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-
Jun 10, 2008
Grant Date -
Jan 20, 2005
app pub date -
Jul 17, 2003
filing date -
Jul 17, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An exhaust chamber system having a rotatable propeller type blade assembly at the entry to an expansion chamber which creates a vortex that swirls exhaust gas towards the outlet. The resultant action within the exhaust chamber aids in scavenging internal combustion engine exhaust gases, and in reducing system back pressure. The exhaust chamber maintains the sound level of the exhaust within acceptable limits while delivering improved horsepower, torque, and/or fuel efficiency over other known conventional mufflers.
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