CN207195010U - A kind of automobile exhaust muffler - Google Patents
A kind of automobile exhaust muffler Download PDFInfo
- Publication number
- CN207195010U CN207195010U CN201721217945.4U CN201721217945U CN207195010U CN 207195010 U CN207195010 U CN 207195010U CN 201721217945 U CN201721217945 U CN 201721217945U CN 207195010 U CN207195010 U CN 207195010U
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- China
- Prior art keywords
- pipe
- muffler
- hush pipe
- muffler shell
- resonant cavity
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Abstract
The utility model discloses a kind of automobile exhaust muffler,Including muffler shell,Resonant cavity,First hush pipe and the second hush pipe,The side of the muffler shell is provided with air inlet pipe,Opposite side is provided with escape pipe,The muffler shell is internally provided with resonantron,The side of the resonantron is fixed with internal portioning layer plate,The side of internal portioning layer plate is provided with resonant cavity in the muffler shell body,And resonant cavity is internally provided with resonantron,The muffler shell is internally provided with the second hush pipe,And second offers cross-ventilation hole on hush pipe,The utility model is scientific and reasonable for structure,It is safe and convenient to use,There is provided activated carbon filter layer,When tail gas is via activated carbon filter layer,Harmful substance in air can be absorbed and be filtered,Can be with the moisture in absorption air,There is the benefit for avoiding tail gas pollution,Avoid the problem of moisture attack muffler causes muffler service life too short.
Description
Technical field
The utility model belongs to mobile muffler technical field, and in particular to a kind of automobile exhaust muffler.
Background technology
Mobile muffler, it is mainly used in reducing noise caused by the engine work of motor vehicle, and enables high-temp waste gas
Safely and effectively discharge, a part of the silencer as discharge duct, should ensure that its exhaust is unimpeded, resistance is small and sufficient intensity,
Silencer will be subjected to 500 DEG C ~ 700 DEG C high-temperature exhaust airs, ensure in the distance travelled of automotive regulations, do not damage, do not lose noise elimination
Effect, automobile noise is essentially from automobile exhaust noise, if being not added with silencer, under certain speed, noise up to 100 decibels with
On, secondly it is engine noise and tyre noise, engine noise when automobile runs well, up to more than 90 decibels, and make an uproar by tire
Sound, up to 95 decibels or so, therefore, silencer is added in gas extraction system, can make automobile when speed is more than 90 km/h
Exhaust noise reduces 20-30 decibels, and in terms of engine, diesel motor is replaced with gasoline engine, can reduce 6-8 points of engine noise
Shellfish.
But mobile muffler in the market is not only complicated, and function is single, is excluded via muffler
The tail gas still pernicious gas containing high concentration, and the inside of muffler is easily deposited moisture, causes muffler to be caused by corrosion
Service life is not grown, and causes erasure effect poor without more noise reduction filters.
Utility model content
The purpose of this utility model is to provide a kind of automobile exhaust muffler, to solve what is proposed in above-mentioned background technology
The tail gas still pernicious gas containing high concentration excluded via muffler, and the inside of muffler is easily deposited moisture, is caused
Muffler causes service life not grown by corrosion, the problem of causing erasure effect difference without more noise reduction filters.
To achieve the above object, the utility model provides following technical scheme：A kind of automobile exhaust muffler, including noise reduction
Device housing, resonant cavity, the first hush pipe and the second hush pipe, the side of the muffler shell are provided with air inlet pipe, opposite side
Escape pipe is provided with, the muffler shell is internally provided with resonantron, and the side of the resonantron is fixed with internal portioning layer plate,
In the muffler shell body side of internal portioning layer plate is provided with resonant cavity, and resonant cavity is internally provided with resonantron, institute
Second hush pipe that is internally provided with of muffler shell is stated, and cross-ventilation hole is offered on the second hush pipe, the muffler
The side away from the second hush pipe is provided with the first hush pipe in housing, and noise reduction air admission hole is offered on the first hush pipe, institute
State and activated carbon filter layer is provided between the second hush pipe and the first hush pipe, air mistake is offered on the activated carbon filter layer
Filter opening, the side of first hush pipe away from resonant cavity are fixed with bend gas intake mouth, and the bend gas intake mouth passes through U-shaped outlet
Bend pipe is fixedly connected with interior escape pipe, and acoustical cotton layer is provided with the inwall of the U-shaped outlet bend pipe.
Preferably, the acoustical cotton layer is bonded by glue with U-shaped outlet bend pipe and connected.
Preferably, intensive air filtration hole is provided with the activated carbon filter layer.
Preferably, the internal portioning layer plate is provided with three, and the inside that three internal portioning layer plates are distributed in altogether.
Preferably, the air inlet pipe, muffler shell and escape pipe are integral type structure.
Compared with prior art, the beneficial effects of the utility model are：
（1）The utility model is scientific and reasonable for structure, safe and convenient to use, there is provided activated carbon filter layer, tail gas via
During activated carbon filter layer, the harmful substance in air can be absorbed and be filtered, can be avoided with the moisture in absorption air
The benefit of tail gas pollution, avoid the problem of moisture attack muffler causes muffler service life too short.
（2）The utility model is provided with the U-shaped outlet bend pipe with acoustical cotton layer, sets the U-shaped acoustical cotton layer that can allow
Area increases, and the noise of absorption is more, there is the benefit of secondary filter noise, avoids because noise filtering insufficient strength causes noise
The benefit of pollution.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model activated carbon filter layer；
In figure：1- muffler shells, 2- internal portioning layers plate, 3- resonantrons, 4 air inlet pipe-, 5- resonant cavities, the hush pipes of 6- first,
7- noise reductions air admission hole, 8- activated carbon filter layers, 9- bend gas intakes mouth, escape pipe in 10-, 11- escape pipes, 12- acoustical cotton layers,
13-U type outlets bend pipe, the hush pipes of 14- second, 15- cross-ventilations hole, 16- air filtration holes.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 and Fig. 2 are referred to, the utility model provides a kind of technical scheme：A kind of automobile exhaust muffler, including noise reduction
Device housing 1, resonant cavity 5, the first hush pipe 6 and the second hush pipe 14, the side of muffler shell 1 is provided with air inlet pipe 4, another
Side is provided with escape pipe 11, and muffler shell 1 is internally provided with resonantron 3, resonantron 3 be used for by with resonant cavity 5
Air carries out resonance and reaches the purpose for reducing noise, and the side of resonantron 3 is fixed with internal portioning layer plate 2, close in muffler shell 1
The side of internal portioning layer plate 2 is provided with resonant cavity 5, resonant cavity 5 is used for air resonance, and resonant cavity 5 is internally provided with resonantron
3, muffler shell 1 is internally provided with the second hush pipe 14, and offers cross-ventilation hole 15, air on the second hush pipe 14
Convection holes 15 are used for the speed for reducing air circulation and fixed air circulation direction so as to reach the purpose of reduction noise, muffler
The side away from the second hush pipe 14 is provided with the first hush pipe 6 in housing 1, and offers noise reduction air inlet on the first hush pipe 6
Hole 7, noise reduction air admission hole 7 are used to reducing the speed of air circulation and reduce the purpose of noise so as to reach, the second hush pipe 14 and the
Activated carbon filter layer 8 is provided between one hush pipe 6, activated carbon filter layer 8 was used for air filtering, and opened on activated carbon filter layer 8
Provided with air filtration hole 16, air filtration hole 16 is used to allow air-flow by the way that the first side of the hush pipe 6 away from resonant cavity 5 is consolidated
Surely there is bend gas intake mouth 9, bend gas intake mouth 9 is used to exclude air, and bend gas intake mouth 9 passes through U-shaped outlet bend pipe 13 and interior outlet
Pipe 10 is fixedly connected, and acoustical cotton layer 12 is provided with the inwall of U-shaped outlet bend pipe 13, and acoustical cotton layer 12 is used for secondary noise reduction.
For the ease of acoustical cotton layer 12 is fixed on the inwall of U-shaped outlet bend pipe 13, in the present embodiment, it is preferred that inhale
Sound cotton layer 12 is bonded by glue with U-shaped outlet bend pipe 13 and connected.
Circulated in order to facilitate air, in the present embodiment, it is preferred that intensive sky is provided with activated carbon filter layer 8
Gas filter bores 16.
In order to form different chambers, in the present embodiment, it is preferred that internal portioning layer plate 2 is provided with three, and three altogether
Internal portioning layer plate 2 is distributed in 1 inside.
For integrally-built steadiness, in the present embodiment, it is preferred that air inlet pipe 4, muffler shell 1 and escape pipe 11
For integral type structure.
Operation principle and process for using of the present utility model：The tail gas that engine excludes enters muffler by air inlet pipe 4
The inside of housing 1, during by resonantron 3, the air in resonant cavity 5 resonates with resonantron 3, pass through resonance effects reduce it is empty
The logical speed of air-flow is so as to reduce a part of noise, and subsequent air enters the second hush pipe 14, by the second hush pipe 14
Cross-ventilation hole 15 is flowed out, and by the air filtration hole 16 on activated carbon filter layer 8, is disappeared via noise reduction air admission hole 7 into first
Sound tube 6, because noise sound wave caused by air stream is via noise reduction air admission hole 7 and cross-ventilation hole 15, carried out with the chamber where it
Roundtrip, and reach the purpose for reducing noise, subsequent air enters U-shaped outlet bend pipe 13, the sound-absorbing in U-shaped outlet bend pipe 13
Cotton layer 12 is again by noise absorption, and when finally being excluded by interior escape pipe 10 to escape pipe, noise is greatly reduced.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of automobile exhaust muffler, including muffler shell（1）, resonant cavity（5）, the first hush pipe（6）With the second noise reduction
Pipe（14）, it is characterised in that：The muffler shell（1）Side be provided with air inlet pipe（4）, opposite side is provided with escape pipe
（11）, the muffler shell（1）Be internally provided with resonantron（3）, the resonantron（3）Side be fixed with internal portioning layer plate
（2）, the muffler shell（1）Interior close internal portioning layer plate（2）Side be provided with resonant cavity（5）, and resonant cavity（5）Inside
It is provided with resonantron（3）, the muffler shell（1）Internal side is provided with the second hush pipe（14）, and the second hush pipe
（14）On offer cross-ventilation hole（15）, the muffler shell（1）Interior remote second hush pipe（14）Side be provided with
First hush pipe（6）, and the first hush pipe（6）On offer noise reduction air admission hole（7）, second hush pipe（14）Disappear with first
Sound tube（6）Between be provided with activated carbon filter layer（8）, the activated carbon filter layer（8）On offer air filtration hole（16）, institute
State the first hush pipe（6）Away from resonant cavity（5）Side be fixed with bend gas intake mouth（9）, the bend gas intake mouth（9）Pass through U
Type outlet bend pipe（13）With interior escape pipe（10）It is fixedly connected, the U-shaped outlet bend pipe（13）Inwall on be provided with acoustical cotton
Layer（12）.
A kind of 2. automobile exhaust muffler according to claim 1, it is characterised in that：The acoustical cotton layer（12）With it is U-shaped
Outlet bend pipe（13）Bonded and connected by glue.
A kind of 3. automobile exhaust muffler according to claim 1, it is characterised in that：The activated carbon filter layer（8）On
It is provided with intensive air filtration hole（16）.
A kind of 4. automobile exhaust muffler according to claim 1, it is characterised in that：The internal portioning layer plate（2）Set altogether
There are three, and three internal portioning layer plates（2）It is distributed in muffler shell（1）Inside.
A kind of 5. automobile exhaust muffler according to claim 1, it is characterised in that：The air inlet pipe（4）, muffler shell
Body（1）And escape pipe（11）For integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721217945.4U CN207195010U (en) | 2017-09-21 | 2017-09-21 | A kind of automobile exhaust muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721217945.4U CN207195010U (en) | 2017-09-21 | 2017-09-21 | A kind of automobile exhaust muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195010U true CN207195010U (en) | 2018-04-06 |
Family
ID=61786149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721217945.4U Active CN207195010U (en) | 2017-09-21 | 2017-09-21 | A kind of automobile exhaust muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678846A (en) * | 2018-07-25 | 2018-10-19 | 苏州泰隆制冷有限公司 | A kind of anticlogging muffler |
| CN109519254A (en) * | 2018-11-15 | 2019-03-26 | 吉林工程技术师范学院 | A kind of automobile exhaust muffler |
-
2017
- 2017-09-21 CN CN201721217945.4U patent/CN207195010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678846A (en) * | 2018-07-25 | 2018-10-19 | 苏州泰隆制冷有限公司 | A kind of anticlogging muffler |
| CN109519254A (en) * | 2018-11-15 | 2019-03-26 | 吉林工程技术师范学院 | A kind of automobile exhaust muffler |
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