A double circulation cooling system including an auxiliary water pump

Abstract

The invention relates to a double-circulation cooling system improvement structure comprising an auxiliary water pump. The double-circulation cooling system improvement structure comprises a high-temperature circulation cooling system, a low-temperature circulation cooling system and a delay circulation cooling system, wherein the high-temperature circulation cooling system comprises a first expansion tank, a high-temperature radiator, an engine cooling water jacket, a first water pump, an electric thermostat, a machine oil cooler, the auxiliary water pump and warm air; the low-temperature circulation cooling system comprises a second expansion tank, a low-temperature radiator, a second water pump, a turbosupercharger, an electric super-charger, an intercooler and a BSG (belt starter generator). According to the double-circulation cooling system improvement structure, the two circulation cooling systems are arranged, and the high-temperature radiator and the low-temperature radiator are respectively arranged, so that the requirements of different to-be-cooled parts on the cooling temperature are effectively guaranteed; the volume of the cooling system is not enlarged through the adoption of the technical scheme provided by the invention.

Description

technical field [0001] The invention belongs to the field of automobile cooling systems, and specifically refers to a dual-circulation cooling system including auxiliary water pumps. 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 mixing and miniaturizati...

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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