Exhaust gas silencing device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 17, 1988
Grant Date -
N/A
app pub date -
Jun 10, 1987
filing date -
Jun 10, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An exhaust silencing device comprises an outer tube that is pinched down to form a series of annular chambers around a coaxial inner gas flow tube and has openings connecting the chambers to provide for some secondary gas flow parallel to primary flow through the tube. The device and is shown in conjunction with a catalytic converter to provide an exhaust system that has a sporty sound.
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