High-reliability exhaust and flow-limiting structure of automobile engine cooling system

Abstract

The invention discloses a high-reliability exhaust and flow-limiting structure of an automobile engine cooling system. The exhaust and flow-limiting structure comprises an exhaust pipe connected with an engine exhaust hole and an air inlet pipe connected with an expansion tank, wherein the exhaust pipe and the air inlet pipe are connected through a sleeve; a grid plate is arranged at the bottom of the sleeve; a moving balloon is placed on the grid plate; an oval baffle plate of which one end is hinged with the inner wall of the sleeve and the short-axis length is greater than the inner diameter of the sleeve is arranged in the sleeve; for the baffle plate, the non-hinged end is lower than the hinged end; and the baffle plate can rotate back and forth between the exhaust pipe and the air inlet pipe around the hinged end, is positioned above the balloon, and can be in air tightness connection with the inner wall of the sleeve when rotating towards the air inlet pipe along the exhaust pipe to reach the maximum displacement. By adoption of the exhaust and flow-limiting structure, not only can air in the automobile cooling system be exhausted, but also the passing of excessive water flow can be prevented, so that an engine can be quickly warmed up and an automobile cooling liquid can be prevented from boiling. In addition, the exhaust and flow-limiting structure is convenient to mount.

Description

technical field [0001] The invention relates to the field of engines, in particular to a highly reliable exhaust flow limiting structure of an automobile engine cooling system. Background technique [0002] At present, most of the exhaust structures of the automobile cooling system are directly connected to the expansion tank with water pipes from the engine or radiator to form an exhaust passage. Such a passage will have a large amount of water flow into the expansion tank through the pipeline while exhausting, and then flow into the engine to form a circulation loop. The disadvantage of this structure is that it is not conducive to the warm-up of the engine; and when the engine is overheated, since the circulation loop does not pass through the radiator, but directly flows back to the engine, it is easy to cause the vehicle coolant to boil. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a...

AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that it is not conducive to the warm-up of the engine; and when the engine is overheated, since the circulation loop does not pass through the radiator, but directly flows back to the engine, it is easy to cause the car coolant to boil

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