Auto swirl exhaust

Abstract

A rotational flow exhaust device of an automobile mainly comprises a shell body part, a rotational flow decompression part, an air inlet pipe and an exhaust pipe. The shell body part comprises an outer shell, a middle shell and an inner shell. An asbestos filling zone is defined by the outer shell and the middle shell, and a recirculation zone is defined by the middle shell and the inner shell. The air inlet pipe and the exhaust pipe are fixedly connected with the inner shell, the middle shell and the outer shell respectively. The rotational flow decompression part is located in the inner shell and comprises guide vanes, a first horn pipe and a second horn pipe. The first horn pipe and the second horn pipe are fixedly connected with the guide vanes respectively, the guide vanes are fixedly connected with the inner shell, and each guide vane is provided with three decompression holes. Tail gas of an engine enters the air inlet pipe, the pressure of the tail gas exhausted by the exhaust pipe reduces through the decompression effect of the rotational flow decompression part, the suction force of the negative pressure rises, the exhaust speed is increased, air inflow is increased, and fuel consumption is effectively reduced. The rotational flow exhaust device of the automobile is simple and reasonable in structure, low in cost, economical and practical.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to an automobile swirl exhaust device. Background technique [0002] Nowadays, with the development of cities, the number of motor vehicles is increasing, and the technical requirements for automobiles are also increasing. It is very important for automobiles to save fuel, so it is of great significance to improve the fuel utilization rate of automobile engines. The secondary air injection system is a practical technology for exhaust emission control. Since the implementation of the world's first vehicle exhaust pollution control standard, it has been widely used in automobiles. Among them, the pulse type secondary air injection system has the ability to apply its own exhaust Air pressure pulse can achieve the purpose of reducing emissions without consuming engine power, but it can only be applied at idling or low speed, and it will not work at high speed. Contents of the invent...

AI Technical Summary

Problems solved by technology

The secondary air injection system is a practical technology for exhaust emission control. Since the implementation of the world's first vehicle exhaust pollution control standard, it has been widely used in automobiles. Among them, the pulse type secondary air injection system has the function of applying its own emission Gas pressure pulse can achieve the purpose of reducing emissions without consuming engine power, but it can only be applied at idle speed or low speed operation, and it will not work at high speed operation

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