Heat insulating and corrosion resistant engine exhaust pipe

Abstract

The invention relates to the field of automobile spare and accessory parts, particularly to a heat insulating and corrosion resistant engine exhaust pipe. The heat insulating and corrosion resistant engine exhaust pipe comprises a pipe body, wherein a circulating water cooling pipe is arranged on the outer side of the pipe body; a heat insulating layer is arranged on the periphery of the cooling pipe; a corrosion resistant cover is arranged on the periphery of the heat insulating layer; the circulating water cooling pipe is arranged on the pipe body in an S shape; and the corrosion resistant cover is coated with a rubber sleeve. The heat insulating and corrosion resistant engine exhaust pipe has the benefits that the circulating water cooling pipe is arranged on the outer side of the pipe body, so that the heat of the exhaust pipe can be timely taken away; the heat insulating layer is arranged on the periphery of the cooling pipe, so that the external heat can be effectively prevented from entering the exhaust pipe, and the exhaust pipe is enabled to maintain a relatively low temperature; the corrosion resistant cover is arranged on the periphery of the heat insulating layer, so that the corrosion of external materials can be effectively avoided; a layer of rubber sleeve is arranged outside the corrosion resistant cover, so that the rigidity of the corrosion resistant cover is improved; the circulating water cooling pipe is arranged on the pipe body in an S shape, so that the cooling path of the circulating water cooling pipe can be increased; and the heat insulating and corrosion resistant engine exhaust pipe is simple in structure and convenient to process, and has industrialized prospect.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a heat-insulating and anti-corrosion engine exhaust pipe. Background technique [0002] The exhaust pipe is installed between the exhaust branch pipe of the engine and the muffler, so that the entire exhaust system is flexibly connected, so as to reduce shock and noise, facilitate installation and prolong the life of the exhaust muffler system. Exhaust pipes are mainly used for light vehicles, mini-cars, passenger cars, and motorcycles. The structure of the exhaust pipe is a double-layer corrugated pipe coated with steel wire mesh, and the straight edge sections at both ends are covered with snap rings. The main material of the exhaust pipe is stainless steel, and the material of the ferrule and the connecting pipe can be stainless steel or aluminized steel. [0003] In the prior art, the exhaust pipe often has some potential safety hazards due to overheating, and the anti-corrosion ef...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the exhaust pipe often has some potential safety hazards due to overheating, and the anti-corrosion effect is not very good, the heat insulation performance is poor, and the fixing is not flexible. Therefore, it is necessary to provide an exhaust pipe to solve the problem. Deficiencies in existing technologies

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