Coolant passage within a cylinder head of an internal combustion engine
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United States of America Patent
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Nov 8, 2011
Grant Date -
Oct 22, 2009
app pub date -
Nov 20, 2008
filing date -
Apr 21, 2008
priority date (Note) -
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Abstract
A cylinder head having a coolant passage therein includes a coolant inlet, an exhaust valve seat portion, intake valve seat portion, and a spark plug mounting portion formed centrally in the cylinder head, wherein a guide rib is formed close to the coolant inlet for coolant to flow near the spark plug mounting portion along the exhaust valve seat portion and a coolant outlet is disposed near to a corner of the intake valve seat portion.
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