An improved structure of a double circulation cooling system with double expansion kettles

Abstract

The invention relates to an improved structure of a double-circulation cooling system with double expansion water tanks. The improved structure comprises a high-temperature circulating cooling system and a low-temperature circulating cooling system, wherein the high-temperature circulating cooling system comprises the expansion water tank I, a high-temperature radiator, an engine cooling water jacket, a first water pump, an electronic thermostat, an engine oil cooling device, an electronic pressurizer and a heater; the low-temperature circulating cooling system comprises the expansion water tank II, a low-temperature radiator, a turbocharger, a second water pump, an intercooler and a BSG. According to the application, the two sets of circulating cooling systems are arranged, and the high-temperature radiator and the low-temperature radiator are respectively arranged, so that the requirements of different parts to be cooled on the cooling temperature are effectively ensured, and according to the technical scheme of the application, the sizes of the cooling systems are not enlarged.

Description

technical field [0001] The invention belongs to the field of automobile cooling systems, and specifically refers to an improved structure of a double-circulation cooling system with double-expansion kettles. 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...

AI Technical Summary

Problems solved by technology

[0009] 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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