Internal combustion engine exhaust system
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United States of America Patent
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May 10, 2005
Grant Date -
Jan 9, 2003
app pub date -
May 16, 2002
filing date -
May 16, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An exhaust system for an internal combustion engine having two banks of cylinders by which pulses of exhaust gas are alternately directed to a diverter subassembly. The diverter subassembly, which is located in the muffler, includes a perforated gas decelerator chamber which divides each pulse of exhaust gas between two exhaust outlets and causes a low pressure wave to occur in the exhaust system to enhance scavenging of a subsequent pulse of exhaust gas and thereby improve engine performance and mileage. The muffler further includes one or more cores and may or may not include a dead air space chamber to provide attenuation and tonal balance to the exiting exhaust gas.
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