Automobile exhaust pipe

Abstract

The invention relates to the field of automobile spare parts, in particular to an automobile exhaust pipe. The automobile exhaust pipe comprises gas inlet pipes, gas exhaust pipes and gas outlet pipes. The gas inlet pipes comprise the left gas inlet pipe and the right gas inlet pipe. The gas exhaust pipes comprise the left gas exhaust pipe and the right gas exhaust pipe. A communicating pipe which is used for connecting the left gas exhaust pipe and the right gas exhaust pipe and enables the gas pressure in the left gas exhaust pipe and the gas pressure in the right gas exhaust pipe to be communicated is arranged in the middle of the left gas exhaust pipe and the middle of the right gas exhaust pipe. The left gas exhaust pipe and the right gas exhaust pipe are each sequentially provided with a filter device, a three-way catalyst, a silencer and a filter layer below the communicating pipe. The gas outlet pipes are located under the filter layers. The automobile exhaust pipe has the advantages that the gas in the left gas exhaust pipe and the gas in the right gas exhaust pipe can be communicated with each other through the communicating pipe, so that return pressure is balanced, and the phenomenon that the operating condition of an engine is affected due to return pressure difference is avoided; due to the arrangement of the three-way catalysts, harmful gases such as CO exhausted from automobile exhaust can be converted into harmless carbon dioxide, water, nitrogen and the like through the oxidation and reducing action.

Description

technical field [0001] The invention relates to the field of automobile accessories, in particular to an automobile exhaust pipe. Background technique [0002] The exhaust pipe is a very common exhaust component on the car. Its air inlet is connected with the gas exhausted from the engine and discharged from the outlet of the exhaust pipe. Existing automobile exhaust pipes usually include a left exhaust pipe and a right exhaust pipe, both of which are independent and usually each have four air inlets for respectively receiving gases discharged from the engine. The pressure of the gas discharged from the engine is usually the same, but when passing through the two exhaust pipes, due to the difference in design between the two, it will cause different back pressures when the gas circulates in the two exhaust pipes. The air pressure imbalance caused by the back pressure will in turn affect the exhaust condition and power performance of the engine, and even affect the running p...

AI Technical Summary

Problems solved by technology

The pressure of the gas discharged from the engine is usually the same, but when passing through the two exhaust pipes, due to the difference in design between the two, it will cause different back pressures when the gas circulates in the two exhaust pipes. The back pressure causes the air pressure to be unbalanced, which will in turn affect the exhaust condition and power performance of the engine, and even affect the running performance of the entire car.

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