Engine cooling system for vehicle

Abstract

The invention discloses an engine cooling system for a vehicle. The system may include a cooling unit that circulates coolant through a cooling line connecting a water jacket, a water pump, and a radiator of an engine to cool the engine, and a sub-cooling unit that selectively circulates coolant through a sub-cooling line connecting the engine with a refrigerator so as to cool the engine.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2012-0065143 filed on Jun. 18, 2012, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The invention relates to an engine cooling system for a vehicle. More particularly, the present invention relates to an engine cooling system for a vehicle that supplies cooled coolant to an engine to cool an overheated combustion chamber according to driving conditions of the engine. Background technique [0004] Generally, a portion of the heat generated by the engine's combustion chamber is absorbed by the cylinder head, cylinder block, intake / exhaust valves, and pistons. [0005] These parts can be deformed by the overheating of the combustion chamber, or the oil film of the cylinder can be damaged. [0006] Therefore, overheating causes combustion failure, knocking or pre-ignition to damage the pist...

AI Technical Summary

Problems solved by technology

[0009] However, the conventional engine cooling system circulates the coolant cooled via the radiator, so it is difficult to cool the engine effectively

[0010] Also, the temperature of the entire engine increases due to an overheated combustion chamber in high-speed / high-load driving conditions of the engine, power output is impaired, fuel consumption is increased, and the overall durability of the engine is impaired

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