Exhaust heat recovery muffler
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United States of America Patent
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N/A
Issued Date -
Mar 16, 2006
app pub date -
Sep 8, 2005
filing date -
Sep 10, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The exhaust heat recovery muffler includes a muffler unit having the outer surface thereof covered, an exhaust heat recovery unit disposed integrally with the muffler unit, and a switching valve that switches the flow of exhaust gas into the muffler unit and into the exhaust heat recovery unit. An outer pipe of the muffler unit and a cylindrical shell of the exhaust heat recovery unit, covering the outer circumference of the outer pipe, are coaxially disposed. The exhaust heat recovery unit includes a heat exchange chamber, formed by a pair of partitions provided between the inner circumference of the shell and the outer circumference of the outer pipe, and small-diameter pipes penetrating through the pair of partitions and extending through the heat exchange chamber. A heat exchange medium flows inside of the heat exchange chamber.
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