Automobile exhaust filtering silencer

Abstract

The invention discloses an automobile exhaust filtering silencer which is provided with an exhaust pipe, an outer barrel body and a core body pipe. The automobile exhaust filtering silencer is characterized in that a filtering element framework, a filtering element, a differential pressure gauge, an inner sealing cover, leaf springs, an outer cavity pressure guide pipe, an inner cavity pressure guide pipe, a locating plug and an outer sealing cover are arranged, one end of the outer barrel body is fixedly connected with the exhaust pipe, the filtering element framework is arranged in the outer barrel body, the wall of the filtering element framework is filled with the filtering element, one end of the filtering element framework is connected with the inner sealing cover, the other end of the filtering element framework is connected with an outer sealing cover, the leaf springs are evenly arranged outside the inner sealing cover, the inner sealing cover is connected with the inner wall of the outer barrel body, the outer sealing cover is connected with the outer barrel body, the core body pipe is arranged at the axis of the filtering element framework, one end of the core body pipe is in sealing connection with the outer sealing cover, the other end of the core body pipe is in sealing connection with the inner sealing cover, one end of the locating plug is in abutting-against connection with a locating hole, the other end of the locating plug is fixedly connected with the exhaust pipe, one connector of the differential pressure gauge is connected with the exhaust pipe, and the other connector of the differential pressure gauge is connected with the locating plug. The automobile exhaust filtering silencer has the advantages of being novel in structure, convenient to maintain, environmentally friendly, free of pollution and the like.

Description

technical field [0001] The invention relates to the technical field of automobile accessories, in particular to an automobile exhaust filter muffler. Background technique [0002] At present, the structure of the existing automobile muffler usually includes an outer cylinder, a core pipe, an air intake pipe, an air outlet pipe, an air inlet flange and an air outlet flange. A core pipe is arranged in the middle of the cylinder, and one end of the core pipe is connected to the engine The other end of the air inlet pipe is connected to the air outlet pipe, the end of the air inlet pipe is connected to the air inlet flange, and the end of the air outlet pipe is connected to the air outlet flange. When the round holes enter and leave the core tube, they flow and collide with each other to reduce the sound energy, thereby reducing the noise. The disadvantage is that this kind of muffler can only play the role of noise reduction. After a long time of use, the impurities in the gas...

AI Technical Summary

Problems solved by technology

[0002] At present, the structure of the existing automobile muffler usually includes an outer cylinder, a core pipe, an air intake pipe, an air outlet pipe, an air inlet flange and an air outlet flange. A core pipe is arranged in the middle of the cylinder, and one end of the core pipe is connected to the engine The other end of the air inlet pipe is connected to the air outlet pipe, the end of the air inlet pipe is connected to the air inlet flange, and the end of the air outlet pipe is connected to the air outlet flange. When the round holes enter and leave the core tube, they flow and collide with each other to reduce the sound energy, thereby reducing the noise. The disadvantage is that this kind of muffler can only play the role of noise reduction. After a long time of use, the impurities in the gas will stick to it. Attached to the filter element, part of the air outlet is blocked by impurities, resulting in a reduction in exhaust volume, and, due to the reduction in the air outlet area of ​​the air outlet, not only the noise is increased, but also the exhaust gas is likely to exceed the standard, resulting in air pollution

[0003] The air filter uses the principle of centrifugation to separate the particles, dust, rainwater, etc. in the air entering the engine from the air, and then settles and discharges dust through gravity to achieve filtering and self-cleaning functions. The diameters are different, and the filter element does not have a good dust removal function. Therefore, it is easy to block the filter element and can only be replaced, resulting in an increase in the cost of wearing parts

[0004] So far, there is no product on the market that is easy to replace and can detect the filtration status of the filter element in real time

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