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Engine Cooling System and Control Valves

An engine cooling and valve control technology, which is applied to engine cooling, coolant flow control, and engine components, etc., can solve the problems of increased circulation branch flow, decreased flow to the radiator, and reduced vehicle heat dissipation performance, etc. Achieve the effect of reducing system energy consumption and improving heat dissipation performance

Active Publication Date: 2019-02-15
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] However, in practical applications, as the engine speed changes, the flow to each circulation branch of the cooling system will also change, such as increasing the flow of the circulation branch
This results in reduced flow to the radiator, reducing overall vehicle cooling performance

Method used

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  • Engine Cooling System and Control Valves
  • Engine Cooling System and Control Valves
  • Engine Cooling System and Control Valves

Examples

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Embodiment Construction

[0048] In the existing engine cooling system, since the water pump is driven by the engine, the flow of the water pump will monotonically increase with the increase of the engine speed, and the flow of each component of the system will also monotonically increase with the increase of the engine speed. However, some components do not require the engine to provide high flow at high speeds, such as warm air heaters, EGR coolers, etc. The flow demand curves are compared with the actual distribution flow curves in traditional cooling systems, such as figure 2 shown. Depend on figure 2 It can be seen that the traditional cooling system arrangement will cause excessive and unnecessary flow distribution of some components at high speeds. This results in less split flow to the radiator, and the heat from this flow remains undissipated, reducing overall vehicle cooling performance. In order to meet the heat dissipation requirements of the engine, it is necessary to increase the disp...

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Abstract

The invention provides an engine cooling system and a control valve. A circulation branch of the engine cooling system comprises the control valve. The control valve comprises a shell, a valve seat and a valve element, wherein the valve seat is a protruding structure arranged in the shell and is used for forming a small-flow channel inside the control valve; and the valve element is elastically connected with the valve seat and partially penetrates through the small-flow channel. Through the engine cooling system and the control valve, self-adaptive flow distribution control over the circulation branch of the engine cooling system can be achieved.

Description

technical field [0001] The invention relates to the technical field of engine cooling, in particular to an engine cooling system and a control valve. Background technique [0002] The engine will generate a lot of combustion heat during operation, so the engine body is usually cooled through the cooling system to ensure that the engine works within a suitable temperature range. At present, the vast majority of automobile engines use a water circulation cooling system. Such as figure 1 As shown, the system can generally be composed of a mechanical water pump 101, an engine water jacket 102, a thermostat 103, a radiator 104, an oil cooler 105, a warm air heater 106, and a waste recirculation (Exhaust Gas Recirculation, EGR) cooler 107 , an expansion tank 108 and other components 109, such as the cooling water jacket of the supercharger and the like. The mechanical water pump 101 is usually driven by the engine (not shown in the figure) to provide circulation flow for the sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P7/14
Inventor 郭凯陈明张小矛
Owner SAIC MOTOR
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