Exhaust funnel silencer

Abstract

The invention discloses an exhaust funnel silencer and relates to the field of car parts. The exhaust funnel silencer comprises a barrel, end covers are arranged at the two ends of the barrel, and thetwo ends of the barrel communicate with an air inlet pipe and an air outlet pipe separately. The right end of the air inlet pipe extends into the barrel, air holes are formed in the wall of the rightend of the air inlet pipe in rows and lines, a baffle is arranged at the right end of the air inlet pipe, a transition pipe is further coaxially connected to the right end of the air inlet pipe, andair holes are further formed in the wall of the left end of the transition pipe in rows and lines. The joint of the air inlet pipe and the transition pipe is sleeved with a resonance pipe, a cavity isformed by the resonance pipe, the air inlet pipe and the transition pipe, and the air holes are all located inside the cavity. A first porous plate is further arranged inside the barrel, the right end of the transition pipe penetrates through the first porous plate, and the air outlet pipe penetrates through the first porous plate leftwards. The exhaust funnel silencer is simple in structure, good in silencing effect and capable of achieving repeated expansion.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a muffler installed at the tail of an exhaust pipe. Background technique [0002] With the development of life and the increasingly developed traffic, cars have become popular, and there are more types of cars. There are mufflers installed on cars. The muffler is a device that allows airflow to pass through, but can prevent or reduce sound transmission. Important measures to eliminate aerodynamic noise. The muffler can block the propagation of sound waves and allow airflow to pass through. It is an effective tool for controlling noise. There are resistive mufflers, resistive mufflers, and resistive mufflers; resistive mufflers are produced by using sound waves in porous sound-absorbing materials or sound-absorbing structures. Propagation, due to friction, the sound energy is converted into heat energy and dissipated, so that the noise propagating along the pipeline is attenuated with d...

AI Technical Summary

Problems solved by technology

[0003] The existing muffler mainly includes a cylinder, the two ends of the cylinder are provided with end caps, and the two ends of the cylinder are respectively connected with an intake pipe and an exhaust pipe. The diffusion effect of the body changes the gas path, thereby achieving the effect of noise reduction, but only through one diffusion, the noise reduction effect is poor

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