engine cooling system

Abstract

The invention discloses an engine cooling system. The engine cooling system comprises a thermostat, a mechanical water pump, a radiator, a water jacket of a cylinder body, a water jacket of a cylinder head, and a warm air pipeline subsystem; the mechanical water pump, the water jacket of a cylinder body and a radiator Forming a complete water circuit, the thermostat is set between the mechanical water pump and the radiator, and the thermostat is used to control the on-off between the mechanical water pump and the radiator; the water jacket of the cylinder body is connected with the water jacket of the cylinder head, and the water jacket of the cylinder head The water outlet of the cylinder head is connected with the water inlet of the warm air pipeline subsystem, and the water outlet of the warm air pipeline subsystem is connected with the water inlet of the mechanical water pump; a first stop valve is set between the cylinder head water jacket and the warm air pipeline subsystem. The first cut-off valve is used to control the on-off connection between the water jacket of the cylinder head and the heating air pipeline subsystem. In the engine cooling system of the present invention, when the engine is low temperature, the radiator and the warm air pipeline subsystem do not participate in circulation, and the number of cooling devices is reduced, so that the engine can reach the normal operating temperature as soon as possible.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine cooling system. Background technique [0002] The main function of the engine cooling system is to keep the engine within the proper temperature range under all operating conditions. After the cold engine is started, the cooling system must ensure that the engine heats up quickly and reaches the normal operating temperature as soon as possible. During the working period of the engine, due to the heating effect of the high-temperature gas, the temperature of the engine components is high. If proper cooling is not carried out, the power, economy, reliability and durability of the engine will eventually be reduced in an all-round way. In the prior art, the engine cooling system is also connected to the warm air pipeline. When the engine is just started, because the warm air pipeline disperses heat, it is difficult for the engine cooling system to reach the normal operatin...

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Problems solved by technology

[0003] The main purpose of the present invention is to propose an engine cooling system, which aims to solve the problems in the prior art that it is difficult to reach the normal operating temperature as soon as possible when the engine is just started.

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