Dual-cycle cooling system improved structure provided with double expansion tanks

Abstract

The invention relates to a dual-cycle cooling system improved structure provided with double expansion tanks. The dual-cycle cooling system improved structure comprises a high-temperature cycle cooling system and a low-temperature cycle cooling system, wherein the high-temperature cycle cooling system comprises a first expansion tank, a high-temperature radiator, an engine cooling water jacket, a first water pump, an electronic thermostat, an engine oil cooler, an electronic supercharger and warm air; the low-temperature cycle cooling system comprises a second expansion tank, a low-temperature radiator, a second water pump, a turbine supercharger, an intercooler and a BSG (belt-driven starter generator). The two cycle cooling systems are arranged, and the high-temperature radiator and the low-temperature radiator are arranged respectively, so that requirements of different to-be-cooled components for cooling temperature are met, and according to the technical scheme, the size of the cooling systems is not increased.

Description

technical field [0001] The invention belongs to the field of automobile cooling systems, and specifically refers to an improved structure of a dual-expansion water tank dual-circulation cooling system. Background technique [0002] Governments of various countries have promulgated more and more stringent standards for engine fuel consumption. For example, it is stipulated that automobile OEMs will continue to reduce fuel consumption to 5.0L / 100km in 2020; One technology is the supercharged miniaturization of the engine + hybrid technology. [0003] In response to local government regulations, a more innovative engine matching system must be found to accomplish this goal. Because on the premise of not losing power, it is basically an impossible task to reduce fuel consumption by 30% on the current basis. Therefore, it is proposed to use a hybrid power system + electronic supercharging on the engine, and achieve the requirement of reducing fuel consumption through weak mixin...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to propose an improved technical solution to the existing engine cooling system. Through this technical solution, the flow direction of the coolant circulation between different components can be better adapted to solve the problems of intercooler, BSG, electronic supercharger, turbine, etc. The cooling problem of the supercharger and the oil cooler can solve the high heat dissipation demand of the BSG at low engine speed and the delayed cooling function after the turbocharger is shut down

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