Silencer assembly of automobile exhaust system

A technology of automobile exhaust system and muffler, which is applied in the direction of exhaust device, muffler device, machine/engine, etc. It can solve the problems of reducing exhaust gas temperature, impossibility, and inconvenient installation, so as to reduce installation length, improve heat dissipation effect, The effect of extending the service life

Active Publication Date: 2021-06-25
波森商用车系统(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of muffler assembly of automobile exhaust system, to solve the problem that the installation length of the muffler assembly of the automobile exhaust system in the above-mentioned background technology is relatively long, the installation is inconvenient, and the safety of the muffler assembly of the whole automobile exhaust system cannot be further improved. The heat dissipation effect, and it is impossible to further improve the sound reduction effect of the muffler assembly while reducing the temperature of the exhaust gas

Method used

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  • Silencer assembly of automobile exhaust system
  • Silencer assembly of automobile exhaust system
  • Silencer assembly of automobile exhaust system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1, such as Figure 1-7 As shown, the noise in the exhaust gas enters the cavity between the muffler pipe 11 and the annular partition 15 through the through hole 18, and due to the guidance of the annular partition 15, the sound waves are continuously absorbed between the two sets of annular partitions 15. consumption, and cooperate with the corrugated plate 16 on the inner wall of the muffler pipe 11 to reduce the noise, and part of the noise will be transmitted by the sound insulation layer 10 and the sound insulation layer 10 The holes 12 of the exhaust gas gradually disappear, and after the exhaust gas enters the heat exchange tube 4 through the muffler tube 11, the remaining noise in the exhaust gas will also be gradually eliminated by the inner wall of the heat exchange tube 4, thereby further reducing the The size of the noise after the exhaust gas is discharged also improves the noise reduction effect of the whole muffler assembly.

Embodiment 2

[0045] Example 2, such as Figure 1-7 As shown, after the exhaust gas is ejected from the air duct 14, it drives the fan 902 to rotate, and the fan 902 drives the rotating shaft 903 to rotate, and the rotating shaft 903 drives the rotating ring 908 and the fan blade 901 to rotate through the cooperation of the first gear 904 and the second gear 905 , use the rotating fan blade 901 to blow the outside air into the cavity between the protection chamber 2 and the muffler pipe 11, cool down the outside of the muffler pipe 11, close the control valve 6, and exhaust gas from the muffler pipe After the inside of 11 comes out, it can only be discharged from the inside of the heat exchange tube 4, while the air blown and cooled by the wind to the muffler tube 11 is ejected from the exhaust hole 13, and the air blown out from the exhaust hole 13 will blow to the heat exchange tube 4, the outside of the heat exchange tube 4 is cooled by wind blowing, thereby also reducing the temperature...

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Abstract

The invention discloses a silencer assembly of an automobile exhaust system. The silencer assembly comprises a protection bin, a silencing pipe is installed in the middle of the interior of the protection bin, an air outlet pipe communicating with the interior of the silencing pipe is installed in the center of one end of the protection bin, and an air inlet pipe communicating with the interior of the silencing pipe is installed at the non-center position of the other end of the protection bin. Through cooperative use of the air inlet pipe, the protection bin, the air outlet pipe, a cooling assembly, the silencing pipe, an exhaust hole, a gas guide pipe, an annular partition plate and a filter screen, tail gas entering the gas guide pipe through the air inlet pipe drives a fan to rotate, and then a first gear, a second gear and a rotating ring are sequentially driven to rotate through a rotating shaft, so that multiple sets of fan blades are driven to rotate, outside air is blown into the cavity between the protection bin and the silencing pipe, the surface of the silencing pipe is cooled through air blowing, and therefore the heat dissipation effect of the silencer assembly is improved, and the service life of the silencer assembly can be prolonged.

Description

technical field [0001] The invention relates to the field of automobile exhaust mufflers, in particular to an automobile exhaust system muffler assembly. Background technique [0002] Automobile exhaust muffler is a device to reduce automobile exhaust noise, which is the main component of driving noise. All countries in the world have strict regulations on the noise limit of various vehicles. The exhaust muffler is such a device for reducing exhaust noise. The function of the exhaust muffler is to reduce and attenuate the pulsation of the exhaust pressure. To eliminate noise, according to the principle of interference, the exhaust muffler has two basic noise reduction methods: absorption and reflection. [0003] At present, the muffler assembly of the automobile exhaust system is often achieved by connecting multiple groups of muffler pipes to achieve the effect of exhaust muffler, but the length of the entire automobile exhaust system muffler assembly is virtually increase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N1/08F01N1/10F01N3/05F01N13/08
CPCF01N1/082F01N1/10F01N3/055F01N13/08
Inventor 周佳琪
Owner 波森商用车系统(天津)有限公司
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