Exhaust system of outboard motor
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United States of America Patent
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-
Sep 11, 2012
Grant Date -
Apr 16, 2009
app pub date -
Oct 9, 2008
filing date -
Oct 15, 2007
priority date (Note) -
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Abstract
An exhaust system of an outboard motor includes: an exhaust passage forward portion including exhaust passages for leading exhaust in the exhaust passage of an exhaust manifold; an exhaust passage reversed portion formed in parallel with the exhaust passage of the exhaust passage forward portion and including exhaust passages communicating with an exhaust passage in an engine holder; and an exhaust passage U-turn portion including an exhaust passage communicating with the exhaust passage of the exhaust passage forward portion and the exhaust passage of the exhaust passage reversed portion. A catalyst for purifying the exhaust is disposed at a junction between the exhaust passages.
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