silencer

Abstract

The invention discloses a silencer which comprises a shell, a first end cover, a second end cover, a first baffle, a second baffle, an air inlet pipe, a U-shaped pipe and an air outlet pipe. The first baffle and the second baffle are located in the shell. The air inlet pipe penetrates the first end cover. The U-shaped pipe communicates with the air inlet pipe. The air outlet pipe penetrates the second end cover. The U-shaped pipe comprises a first pipe body, a second pipe body parallel to the first pipe body and a U-shaped connecting pipe, wherein the first pipe body penetrate the first baffle and the second baffle, the second pipe body penetrates the second baffle, and the U-shaped connecting pipe comprises a first half pipe wrapped on the first pipe body and the second pipe body, and a second half pipe welded to the first half pipe. The air outlet pipe comprises a first connecting pipe, a second connecting pipe and steel wool connected to the part between the first connecting pipe and the second connecting pipe in the radial direction in a sleeving manner. According to the silencer, due to the fact that the first connecting pipe and the second connecting pipe are connected in the axial direction in a sliding manner, deformation can be absorbed; and in addition, due to the fact that the first pipe body and the second pipe body are connected through the U-shaped connecting pipe, manufacturing is facilitated.

Description

technical field [0001] The invention relates to a muffler and belongs to the technical field of engine exhaust aftertreatment. Background technique [0002] The high-temperature exhaust gas in the muffler tends to cause mechanical deformation of the components, which can cause cracking at the welding position. According to the requirements of durability, it is necessary to consider how to solve the above technical problems when designing the muffler. Contents of the invention [0003] An object of the present invention is to provide a muffler that can absorb deformation and is easy to manufacture. [0004] In order to achieve the above object, the present invention adopts the following technical solution: a muffler, which includes a shell formed by curling a metal plate, a first end cover and a second end cover respectively located at both ends of the shell, The first baffle plate and the second baffle plate in the body, the air inlet pipe passing through the first end c...

AI Technical Summary

Problems solved by technology

[0002] The high-temperature exhaust gas in the muffler is easy to cause mechanical deformation of the components, thus causing cracking at the welding position

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