Combustion engine with coolant collector for shut-down cooling and/or warm-up cooling
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United States of America Patent
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Apr 14, 2015
Grant Date -
Aug 15, 2013
app pub date -
Jun 15, 2011
filing date -
Jun 18, 2010
priority date (Note) -
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Abstract
An internal combustion engine includes a cylinder crankcase and a cylinder head that includes an integrated exhaust manifold, wherein the cylinder crankcase, the cylinder head and the integrated exhaust manifold have a continuous water jacket that forms part of a coolant circuit of the internal combustion engine. To ensure during shut-down cooling and/or warm-up cooling of the exhaust manifold that a majority of the coolant that is fed into the water jacket reaches the exhaust manifold, while only a small portion of the coolant flows around the cylinder through the cylinder crankcase, the coolant circuit includes a collector that communicates via passage openings having reduced opening cross-sections with the water jacket, and coolant channels arranged in extension of a flow direction through the passage-openings lead to the exhaust manifold, while coolant channels branching off laterally behind the passage-openings lead to the cylinder crankcase.
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