Check valves, automotive engine cooling systems, and automotive

Abstract

A check valve comprises a valve body (13), an input cavity (17), an output cavity (14) and an intermediate cavity (15) are formed in the valve body, wherein a slidable spool (16) is arranged in the intermediate cavity (15), a communicating passage is formed when one end of the spool (16) moves into the output cavity (14), and moreover, the opposite end of the spool (16) is in sealing surface contact or line contact with the valve body (13) when moving into the input cavity (17). In addition, the invention also provides an automobile engine-cooling system with the check valve and an automobile. The check valve adopts a unique unidirectional control structure, can effectively carry out the unidirectional control function of forwardly allowing the steam in a steam-removing pipe of a radiator to flow and backwardly cutting off the steam, and can be reliably applied in the engine-cooling system, thus solving the problems of slow temperature rise of an engine operating under low temperature and the like, remarkably increasing the power of the engine, reducing oil consumption, improving the power performance of the engine and enhancing the air-warming effect.

Description

technical field [0001] The present invention relates to a valve, in particular to a one-way valve. In addition, the present invention also relates to an automobile engine cooling system provided with the check valve, and an automobile with the automobile engine cooling system. Background technique [0002] At present, most automobile engine cooling systems adopt forced circulation water cooling system. Its main function is to dissipate part of the heat absorbed by parts during engine operation in time, so that the engine can be cooled moderately, so as to keep it within a suitable working range. [0003] The conventional connecting structure of automobile engine cooling system is well known to those skilled in the art, see Figure 7 As shown, the automobile engine cooling system includes a radiator 1, a hydraulic pump 11, a cooling fan 22, a thermostat 3 and a water jacket formed in the engine cylinder head and the cylinder body, wherein the radiator 1, the hydraulic pump 11...

AI Technical Summary

Problems solved by technology

[0008] That is to say, when the ambient temperature is low, the engine closes the "big circulation" path of the cooling water flowing through the radiator 1 through the thermostat 3 in order to ensure the normal operating temperature, but in the engine cooling system of the above-mentioned prior art, Due to the above connection structure, the "big circulation" of the cooling water actually opens the "back door", which makes the engine overcooled, the engine temperature rises slowly, the power decreases, the fuel consumption increases, and even the flame is turned off, which affects the heating effect of the heating system

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