Engine cooling system

Abstract

The invention discloses an engine cooling system. The engine cooling system comprises a primary intercooling cyclic system and a secondary intercooling cyclic system, wherein the primary intercoolingcyclic system comprises a primary intercooling radiator, an electronic water pump, a belt starter generator (BSG) and an engine intercooler. Cooling liquid from the primary intercooling radiator is divided into two paths after passing through the electronic water pump. One path of the cooling liquid flows through the BSG and returns to the primary intercooling radiator, and the other path of the cooling liquid flows through the engine intercooler and returns to the primary intercooling radiator. The secondary intercooling cyclic system comprises an engine intercooler and a secondary intercooling radiator. Cooling gas from the secondary intercooling radiator circulates into the engine intercooler and a cylinder cover. According to the engine cooling system, the cooling liquid is used for cooling in the primary intercooling cyclic system, the cooling gas is used for cooling in the secondary intercooling cyclic system, and cooling efficiency and cooling stability are improved by combiningthe cooling liquid with the cooling gas.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an engine cooling system. Background technique [0002] The outside air needs to be filtered and supercharged before entering the engine. Usually, the air is filtered by the air filter and then enters the turbocharger. When the turbocharger is working, it uses the exhaust gas after combustion of the engine as power to drive the turbine. , thus boosting the air entering the turbocharger. However, because the temperature of the exhaust gas discharged from the engine is very high, when the exhaust gas enters the turbocharger and drives the turbine, it will transfer high-temperature heat to the supercharged gas through the turbocharger. In addition, the air is compressed by the turbocharger. , the temperature will also increase due to the increase in density. [0003] If the above-mentioned pressurized gas is directly sent into the engine without cooling, it will affect the cha...

AI Technical Summary

Problems solved by technology

[0003] If the above-mentioned pressurized gas is directly sent into the engine without cooling, it will affect the charging efficiency of the engine, and the engine combustion temperature will be too high, which will easily cause knocking, etc., and will also increase the content of nitrogen oxides in the engine exhaust gas.

In order to solve the above problems, before the pressurized gas enters the engine, it will be cooled. The cooling system currently used has low cooling efficiency and poor cooling stability under severe working conditions.

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