Engine thermal management system and method for split cooling and integrated exhaust manifold applications
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United States of America Patent
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Apr 7, 2015
Grant Date -
Nov 21, 2013
app pub date -
Aug 20, 2012
filing date -
May 21, 2012
priority date (Note) -
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Abstract
A thermal management system and method for split cooling and integrated exhaust manifold applications in an automotive engine is provided. The thermal management system includes a cooling circuit that directs coolant through a plurality of components to warm the engine and passenger compartment efficiently, as well as remove excess heat from the engine and promote a constant operating temperature during vehicle operation. The cooling circuit directs liquid coolant, propelled by a coolant pump, through at least one of an engine block cooling jacket, an engine head cooling jacket, and an integrated exhaust manifold (IEM) cooling jacket, along a variety of cooling paths. The cooling circuit also incorporates a plurality of flow control valves to selectively distribute flow of the liquid coolant between a radiator, an engine heater core, and a return path to the coolant pump.
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