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Manufacturing method of automobile muffler and muffler device

A technology of automobile muffler and manufacturing method, which is applied in the direction of muffler, assembly machine, manufacturing tools, etc., can solve the problems of large noise radiation, etc., and achieve the effects of stable arc, reducing excessive arc length, and reducing noise transmission

Inactive Publication Date: 2019-06-18
重庆市大林机械发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to propose a muffler that can effectively suppress noise in view of the high-speed airflow that produces large noise radiation when the vehicle exhausts.

Method used

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  • Manufacturing method of automobile muffler and muffler device
  • Manufacturing method of automobile muffler and muffler device
  • Manufacturing method of automobile muffler and muffler device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 As shown, the muffler includes a shell 6 , an end cover 10 and a core assembly, and the core assembly includes a buffer pipe 2 , an intake buffer pipe 1 , an exhaust buffer pipe 3 and a separator 4 . The buffer pipe 2, the intake buffer pipe 1 and the exhaust buffer pipe 3 are provided with a partition 4 and a sound-absorbing cotton 7, and at the exhaust end of the intake buffer pipe 1 and the exhaust end of the exhaust buffer pipe 3, another A partition 4 is provided. In order to allow the gas discharged from the exhaust hole 5 at the exhaust end of the intake buffer pipe 1 to flow well in the housing 6 , each partition 4 is also provided with an exhaust hole 5 .

[0034] like figure 1 , figure 2 and image 3 As shown, the end caps 10 are installed at both ends of the housing 6, and the end caps 10 are aligned with the edges of the housing 6 and tightly attached, and the edges of the end caps 10 and the housing 6 are clamped and bent for hemming. Th...

Embodiment 2

[0046] like Figure 4 As shown, the muffler includes a shell 6 , an end cover 10 and a core assembly, and the core assembly includes a buffer pipe 2 , an intake buffer pipe 1 , an exhaust buffer pipe 3 and a separator 4 . Weld and fix the buffer pipe plug 9 on the exhaust end of the intake buffer pipe 1, wrap the sound-absorbing cotton 7 on the outside of the buffer pipe 2, the intake buffer pipe 1 and the exhaust buffer pipe 3, and let the sound-absorbing cotton 7 and both sides The partitions 4 are tightly attached so that there is no gap between the sound-absorbing cotton 7 and the partitions 4 on both sides. In order to allow the gas discharged from the exhaust hole 5 at the exhaust end of the intake buffer pipe 1 to flow well in the housing 6 , each partition 4 is also provided with an exhaust hole 5 .

[0047] The buffer pipe 2 is arranged between the intake buffer pipe 1 and the exhaust buffer pipe 3, the middle part of the intake buffer pipe 1 and the exhaust end of t...

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Abstract

The invention discloses a manufacturing method of an automobile muffler and a muffler device. A core component is assembled firstly, parts, located between two separating plates of the core component,of a buffer pipe, an air inlet buffer pipe and a venting buffer pipe are coated with sound-absorbing cotton, then the core component coated with the sound-absorbing cotton is placed into an automobile muffler casing, two ends of the automobile muffler casing are blocked by the aid of end covers, and the automobile muffler is formed. The buffer pipe of the muffler is arranged between the air inletbuffer pipe and the venting buffer pipe, the outer side of the buffer pipe, the outer side of the air inlet buffer pipe and the outer side of the venting buffer pipe are coated with the sound-absorbing cotton, and the sound-absorbing cotton is closely attached to the separating plates on two sides. According to the manufacturing method, the parts, located between the two separating plates of thecore component, of the buffer pipe, the air inlet buffer pipe and the venting buffer pipe are coated with the sound-absorbing cotton, then the two ends of the automobile muffler casing are blocked bythe aid of the end covers, and the automobile muffler is formed, so that the noise can be suppressed substantially.

Description

technical field [0001] The invention relates to a muffler and a manufacturing method thereof, in particular to an automobile muffler in which a buffer pipe plug is welded and fixed at one end of an intake buffer pipe, and the buffer pipe is arranged between an intake buffer pipe and an exhaust buffer pipe. Background technique [0002] The muffler is a device that prevents sound transmission and allows airflow to pass through, and is an important measure to eliminate aerodynamic noise. When the exhaust gas is discharged from the automobile engine, the pressure of the exhaust gas changes rapidly at the outlet of the exhaust pipe, which generates vibration, and the vibration generates noise. Therefore, the current main method of noise reduction is to install a muffler in the exhaust pipe of the automobile engine. The muffler is used to consume airflow energy and reduce the pressure fluctuation range of the airflow, which can reduce noise. Now, as the requirements of emission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23P21/00B23K9/16F01N1/10F01N1/08
Inventor 秦爱国
Owner 重庆市大林机械发展有限公司
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