Cooling exhaust pipe

Abstract

The invention relates to a cooling exhaust pipe. The cooling exhaust pipe comprises a purifier, a muffler and a gas guide pipe. A cooler is further connected between an engine and the purifier in series. The cooler is of a two-layer hollow pipe-shaped structure, an inner-layer pipe of the cooler is made of elastic materials, and an outer-layer pipe of the cooler is made of hard materials. An airtight annular-cylinder-shaped heat absorbing box is defined by the inner-layer pipe and the outer-layer pipe. The heat absorbing box is filled with cooling fluid. A fluid inlet hole and a fluid outlet hole which are communicated with the heat absorbing box and additionally provided with one-way valves are formed in the outer-layer pipe. The fluid inlet hole and the fluid outlet hole are provided with a fluid inlet pipe and a fluid outlet pipe respectively, and the fluid inlet pipe and the fluid outlet pipe are communicated with the two ends of a soft cooling box respectively. The exhaust pipe can quickly cool high-temperature tail gas, thereby effectively protecting the muffler and the purifier; meanwhile, liquefied water can be prevented from entering the muffler and the purifier, so the overall service life of the exhaust pipe is prolonged; besides, the exhaust pipe has an auxiliary muffling effect.

Description

technical field [0001] The invention relates to an automobile accessory, in particular to an exhaust pipe. Background technique [0002] The traditional exhaust structure of a car includes a purifier, a muffler and an air duct; the temperature of the exhaust gas discharged from the engine exhaust valve is as high as 600°C, and the high-temperature and high-pressure exhaust gas enters the purifier after being discharged from the exhaust valve, and then passes through multiple sets of mufflers After muffled, it is led out from the exhaust tailpipe; this exhaust pipe structure is more harmful to the purifier and muffler, and the high-temperature gas will accelerate the aging of the purifier and muffler, shortening the life of the exhaust pipe; in addition, the traditional exhaust pipe In order to ensure the noise reduction effect, the air pipe needs to be equipped with multiple sets of silencers, which not only increases the cost, but also makes the exhaust pipe complicated and...

AI Technical Summary

Problems solved by technology

[0002] The traditional exhaust structure of a car includes a purifier, a muffler and an air duct; the temperature of the exhaust gas discharged from the engine exhaust valve is as high as 600°C, and the high-temperature and high-pressure exhaust gas enters the purifier after being discharged from the exhaust valve, and then passes through multiple sets of mufflers After muffled, it is led out from the exhaust tailpipe; this exhaust pipe structure is more harmful to the purifier and muffler, and the high-temperature gas will accelerate the aging of the purifier and muffler, shortening the life of the exhaust pipe; in addition, the traditional exhaust pipe In order to ensure the noise reduction effect, the air pipe needs to be equipped with multiple sets of mufflers, which not only increases the cost, but also makes the exhaust pipe complicated and lengthy, making it difficult to install and maintain; the exhaust pipe is filtered and treated layer by layer. When the exhaust pipe is discharged, the temperature of the gas drops to about 70°C, and the water vapor in the exhaust gas cools down and forms water droplets. This is also one of the reasons why the traditional exhaust pipe sprays water. If the liquefied water droplets enter the muffler and purifier, it may be blocked. components, causing exhaust pipe failure

Images