Automobile silencer with efficient noise reduction performance

Abstract

The automobile silencer with the efficient noise reduction performance comprises a silencer shell, the opening ends of the two sides of the silencer shell are detachably connected with a left end cover and a right end cover correspondingly, the left end cover and the right end cover are connected with an air outlet pipe and an air inlet pipe in an inserted mode correspondingly, and the air outlet pipe and the air inlet pipe are arranged in an up-down parallel mode; a plurality of silencing holes are evenly formed in the tail pipe walls of the air outlet pipe and the air inlet pipe correspondingly, mineral wool sound absorption plates are symmetrically arranged on the two sides of an inner cavity of the silencer shell, the air outlet pipe and the air inlet pipe are detachably connected with the mineral wool sound absorption plates correspondingly, and a silencing plate is arranged in a partition cavity in the left side of the silencer shell. The left end cover and the right end cover are connected with the two ends of a circulating noise reduction pipe in an inserted mode respectively. By the adoption of the technical scheme, the silencer shell is provided with the silencing holes, the mineral wool acoustic board, the silencing protruding blocks and the circulating noise reduction pipe, noise reduction treatment is efficient, the noise reduction treatment effect is further enhanced, operation and application are convenient, and the use performance of the silencer is improved.

Description

technical field [0001] The invention relates to the technical field of automobile mufflers, in particular to an automobile muffler with high-efficiency noise reduction performance. Background technique [0002] The car muffler is a kind of auto parts. The car muffler is installed at the position of the exhaust pipe of the car and used to silence the noise generated inside the exhaust pipe of the engine, so as to better build and reduce the noise of the car; the existing A car muffler with high noise reduction performance includes a housing, an air intake pipe and an air outlet pipe. A muffler chamber is provided inside the housing. In the muffler chamber, vent holes are arranged on the air inlet pipe and the air outlet pipe. By changing the sound wave flow path of the airflow, the airflow Hit the resonance silencer in the muffler cavity, so as to realize the noise reduction and noise reduction treatment of the exhaust flow, but the noise reduction and noise reduction perform...

AI Technical Summary

Problems solved by technology

[0002] The car muffler is a kind of auto parts. The car muffler is installed at the position of the exhaust pipe of the car and used to silence the noise generated inside the exhaust pipe of the engine, so as to better build and reduce the noise of the car; the existing A car muffler with high noise reduction performance includes a housing, an air intake pipe and an air outlet pipe. A muffler chamber is provided inside the housing. In the muffler chamber, vent holes are arranged on the air inlet pipe and the air outlet pipe. By changing the sound wave flow path of the airflow, the airflow Hit the resonance silencer in the muffler cavity, so as to realize the noise reduction and noise reduction treatment of the exhaust flow, but the noise reduction and noise reduction performance of the traditional muffler is not good enough. The high temperature and high pressure airflow continuously impacts the intake pipe and the silencer end of the outlet pipe end, which is easy to cause damage to the pipe fittings. The service life is reduced, and it is not easy to disassemble and replace. Therefore, we design a car muffler with high-efficiency noise reduction performance

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