Cooling system capable of improving engine warming-up speed and lowering oil consumption

Abstract

The invention providing a cooling system capable of improving the engine warming-up speed and lowering the oil consumption. The cooling system comprises an engine water pump, an engine cylinder body,a cylinder body water jacket, a cylinder cover water jacket, a thermostat, HVAC, a radiator, an engine oil cooler, a water storage pot and an electromagnetic valve. The cooling system can be controlled to start and stop through the choices of the electromagnetic valve and the thermostat, the flow directions of cooling water can be switched according to the load of an engine, the rapid engine warming-up process can be achieved, and the oil consumption can be lowered; in the engine cold-start stage, the cylinder cover water jacket and the cylinder body water jacket can be kept in a series connection structure, the cooling water can be heated twice during one cycle, the temperature rise of the cooling water can be accelerated to the greatest extent, the heat exchange process can be performedthrough the engine oil cooler, the rapid temperature rise of engine oil can be achieved, the friction work of the engine can be reduced, and the oil consumption and emissions can be lowered; and in the relatively-high-temperature engine warming-up stage and the high-temperature stage, the cylinder cover water jacket and the cylinder body water jacket can be kept in a series connection structure, the water flow rate of the engine can be increased to the greatest extent, the water flow rate of a cylinder body and that of a cylinder cover can be controlled respectively, both the optimum temperature of the cylinder body and that of the cylinder cover can be reached, the knocking phenomenon can be reduced, and the oil consumption can be lowered.

Description

technical field [0001] The invention belongs to the technical field of automobile engines, in particular to an engine cooling system. Background technique [0002] Engine warm-up refers to the process in which the temperature of the engine body rises from low temperature to normal operating temperature. When the engine starts cold, due to the low temperature of the intake system and the cylinder, it is difficult for gasoline to evaporate completely, which will cause incomplete combustion, cause a large amount of C and H emissions, and form pollution. At the same time, due to the difficulty of fuel evaporation and poor combustion conditions, the problem of additionally increasing the amount of fuel is caused. In addition, the cooling water temperature of the engine is also low during the warm-up process, and the heat taken away by the cooling water of the engine increases, which increases the heat loss and further aggravates the aforementioned problems of pollution emissions...

AI Technical Summary

Problems solved by technology

When the engine starts cold, due to the low temperature of the intake system and the cylinder, it is difficult for the gasoline to evaporate completely, which will cause incomplete combustion, cause a large amount of C and H emissions, and form pollution

At the same time, because the fuel is difficult to evaporate and the combustion condition is poor, it also causes the problem of increasing the amount of fuel.

In addition, the cooling water temperature of the engine is also low during the warm-up process, and the heat taken away by the cooling water of the engine increases, which increases the heat loss and further aggravates the aforementioned problems of pollution emissions and increased fuel consumption.

Another problem is that when the engine starts cold, the temperature is low, and the lubricating oil cannot work effectively, resulting in greater friction of the internal moving parts of the engine.

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