Secondary air system
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United States of America Patent
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Jun 18, 2013
Grant Date -
Jul 29, 2010
app pub date -
Jan 27, 2010
filing date -
Jan 28, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A secondary air system for the supply of secondary air into at least one exhaust gas outlet passage of a cylinder head of an internal combustion engine, wherein at least one secondary air passage provided in the cylinder head is associated with the exhaust gas outlet passage and opens into the exhaust gas outlet passage and into an outer connection surface of the cylinder head. A base plate is provided which can be placed onto the connection surface of the cylinder head and which is provided with secondary air stubs which each engage into a secondary air passage when the base plate is in place. The base plate is provided on its outer side remote from the connection side with at least one hood via which the supplied secondary air is distributed to a plurality of secondary air stubs.
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