Resonant-type muffler
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United States of America Patent
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Oct 8, 2013
Grant Date -
Oct 18, 2012
app pub date -
Apr 10, 2012
filing date -
Apr 18, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A muffler comprising an inner pipe having one end connected to an upstream side of an exhaust pipe of an engine exhaust system, and another end connected to a downstream side of the exhaust pipe, an outer pipe covering at least part of the inner pipe, a hole being formed in a pipe wall of the inner pipe, a resonance chamber formed in a space between the inner pipe and the outer pipe, and a connection passage formed on an outer peripheral surface of the inner pipe along an axial direction of the inner pipe. The connection passage comprising a plurality of sections connected in series to form the connection passage as a single continuous passage.
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