An engine cooling system and a cooling method

An engine cooling and engine technology, which is applied in the direction of engine cooling, engine components, machines/engines, etc., can solve the problems of adjustment lag, engine coolant temperature fluctuation, etc., to reduce friction loss, improve gas charging efficiency, and improve emissions Effect

Inactive Publication Date: 2012-10-17
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in the traditional cooling system, a wax-type thermostat is used to adjust the flow through the radiator, but the wax-type thermostat has the disadvantage of adjusting hysteresis, which leads to fluctuations in engine coolant temperature

Method used

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  • An engine cooling system and a cooling method

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Embodiment Construction

[0042] Please refer to figure 1 , which schematically shows the composition of an embodiment of the engine cooling system of the present invention. In this embodiment, the engine cooling system mainly includes a pump device 1, a cylinder head water jacket 2, a cylinder block water jacket 3, a flow control valve 4, a radiator 5, a heater 6, an expansion tank 7, and a first temperature sensor 8 , the second temperature sensor 9, the sealing device 10, the regulating device 11, etc., these components and their functions will be described in detail below.

[0043] Such as figure 1 As shown, the cylinder head water jacket 2 and the cylinder block water jacket 3 are connected to each other, and in this engine cooling system, the output port of the pump device 1 is directly connected to the input port of the cylinder head water jacket 2, so that the coolant is input To cool the engine, the coolant then passes through two different flow paths, the first flow path A and the second fl...

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PUM

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Abstract

The invention relates to an engine cooling system, comprising a radiator, an expansion water tank, a pump unit, and a water jacket of a cylinder cover and a water jacket of a cylinder body that are communicated with each other. An outlet of the pump unit is communicated with an inlet of the water jacket of the cylinder cover to input cooling liquid; the input cooling liquid is arranged to be two flow paths for respectively cooling the cylinder cover and the cylinder body of the engine, wherein the first flow path is a loop where the cooling liquid outflows from an outlet arranged on the cylinder cover via the water jacket of the cylinder cover, and enters into an inlet of the pump unit after passing through the expansion water tank; the second flow path is a loop where the cooling liquid outflows from an outlet arranged on the cylinder body via the water jacket of the cylinder body, and enters into the inlet of the pump unit after passing through the radiator. The invention also relates to an engine cooling method. By utilizing the engine cooling system and the cooling method, temperatures of the cylinder cover and the cylinder body can be controlled and maintained in a more reasonable way, and therefore a temperature of lubricating oil can be notably improved, friction loss can be lowered, fuel consumption can be more efficient, and emission can be lowered.

Description

【Technical field】 [0001] The invention relates to a cooling system and a cooling method, in particular to an engine cooling system and a cooling method. 【Background technique】 [0002] The engine cooling system is one of the important components of the car. Its main function is to dissipate part of the heat absorbed by the heated parts in a timely manner, so that the engine can be properly cooled and kept in a suitable temperature range under various working conditions. work inside. Such a cooling system should not only prevent the engine from overheating, but also prevent the engine from being too cold in winter. After the engine is cold started, the cooling system should also ensure that the engine can heat up quickly and reach the normal operating temperature as soon as possible. [0003] At present, the water cooling system of automobile engine is a forced circulation water cooling system, that is, the water pump is used to increase the pressure of the coolant, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P3/02F01P7/16
Inventor 宋宏利尹建民王立新李萌李学伟石中光黄潜于述亮
Owner SAIC GENERAL MOTORS
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