Exhaust control device for vehicle engine
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United States of America Patent
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Jun 4, 2013
Grant Date -
Apr 2, 2009
app pub date -
Sep 25, 2008
filing date -
Sep 28, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
An exhaust control device for a vehicle engine wherein an exhaust pipe forms an exhaust passage along with an exhaust port is connected to a cylinder head via the exhaust port. A rotary valve is capable of changing the opening area of the exhaust passage. The rotary valve being disposed in approximately the middle of the exhaust passage. The opening area of the exhaust passage is made controllable by the rotary valve while avoiding an increase in the number of component parts. A rotary valve having a turning axis located at a position offset from the center of the exhaust port is housed in a valve housing provided integrally with a cylinder head.
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