CN207018073U - A kind of exhaust expansion bellowses with silencing function - Google Patents
A kind of exhaust expansion bellowses with silencing function Download PDFInfo
- Publication number
- CN207018073U CN207018073U CN201720700999.XU CN201720700999U CN207018073U CN 207018073 U CN207018073 U CN 207018073U CN 201720700999 U CN201720700999 U CN 201720700999U CN 207018073 U CN207018073 U CN 207018073U
- Authority
- CN
- China
- Prior art keywords
- bellows
- liner
- silencing function
- exhaust expansion
- network structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000030279 gene silencing Effects 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003584 silencer Effects 0.000 abstract description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Abstract
It the utility model is related to a kind of exhaust expansion bellowses with silencing function, including bellows, it is characterised in that also including spacing network structure and liner；The spacing network structure is arranged at outside the bellows, and the both ends of the bellows are fixed at the both ends of the spacing network structure by end ring respectively, and the liner is arranged in the bellows, and sound absorbing layer is additionally provided between the liner and the bellows.The liner is expansion joint structure, and the interior lining is also machined with a series of apertures.The utility model can effectively lower exhaust noise while reducing vibration and transmitting, and improve vehicle NVH performances and improve the life-span of gas extraction system；And the volume of exhaust rear class silencer can be reduced, be more beneficial for the arrangement of gas extraction system.
Description
Technical field
The utility model belongs to automobile exhaust system technical field, and in particular to a kind of exhaust ripple with silencing function
Pipe.
Background technology
Exhaust expansion bellowses are the important components of gas extraction system vibration and noise reducing, and improve the important portion in gas extraction system life-span
Part.It absorbs vibration and torsion caused by engine, so as to reduce the vibration transmission of gas extraction system；Absorb due to high temperature
Thermal expansion caused by exhaust；Decay absorbs the vibration caused by load change, road conditions, and that improves gas extraction system uses the longevity
Life；Construct noise is reduced simultaneously, improves ride comfort.
Used exhaust expansion bellowses on automobile at present, it can be very good to play effectiveness in vibration suppression, but the work of its sound-deadening and noise-reducing
With all unobvious, and it is easy to wear, so not only vehicle NVH is deteriorated, but also affect the performance of gas extraction system.
Utility model content
In order to solve above-mentioned technical problem, the utility model devises a kind of exhaust ripple with silencing function
Pipe, exhaust noise is reduced while the excited vibration of engine is effectively absorbed.
In order to solve above-mentioned technical problem, the utility model employs following scheme：
A kind of exhaust expansion bellowses with silencing function, including bellows, it is characterised in that also including spacing network structure and
Liner；The spacing network structure is arranged at outside the bellows, and the both ends of the spacing network structure are individually fixed in institute
The both ends of bellows are stated, the liner is arranged in the bellows, and suction is additionally provided between the liner and the bellows
Sound-absorbing layer.
Further, the both ends of the bellows are fixed at the both ends of the spacing network structure by end ring respectively.
Further, the spacing network structure is metal net.
Further, the interior lining is also machined with a series of apertures.
Further, the liner is expansion joint structure.
Further, one end of the sound absorbing layer is fixed with the liner, the other end be can relatively described lining activities from
By holding.
Further, the material of the sound absorbing layer uses glass fibre.
Further, the bellows is the airtight bellows of metal.
The exhaust expansion bellowses with silencing function have the advantages that：
（1）Exhaust expansion bellowses of the utility model with silencing function, by being provided with a series of apertures in interior lining, and
One layer of sound absorbing layer is set between liner and bellows, and when sound wave passes through exhaust expansion bellowses, sound-absorbing porous material can effectively be inhaled
A part of exhaust noise is received, while bellows can also be reduced and hit frictional noise with liner.The exhaust expansion bellowses of this structure
It can effectively lower exhaust noise while reducing vibration and transmitting, improve vehicle NVH performances and improve the life-span of gas extraction system；
And the volume of exhaust rear class silencer can be reduced, be more beneficial for the arrangement of gas extraction system.
（2）The utility model is simple in construction, and using effect is good.
Brief description of the drawings
Fig. 1：The structural representation of exhaust expansion bellowses one embodiment of the utility model with silencing function.
Description of reference numerals：
1-spacing network structure；2-bellows；3-sound absorbing layer；4-liner；41-aperture；5-end ring.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described further：
Fig. 1 shows a kind of exhaust expansion bellowses with silencing function, including spacing network structure 1, bellows 2, sound absorbing layer
3rd, liner 4 and end ring 5.Spacing network structure 1 is arranged at outside bellows 2 and 2 liang of bellows is fixed in both ends by end ring 5
End, liner 4 are arranged in bellows 2, and sound absorbing layer 3 is located between liner 4 and bellows 2.
Spacing network structure 1 is metal net, is arranged at outside bellows 2, can preferably constrain and guide bellows 2
Deformation degree and direction, effectively avoid at work the stress deformation of bellows 2 it is excessive and influence gas extraction system performance, and can be
Bellows 2 is avoided to a certain extent by foreign impacts.Metal net is fixed on both ends end ring 5.
Bellows 2 is the airtight bellows of metal, movably but can not be leaked.
Liner 4 is expansion joint structure, guides exhaust airstream, a series of apertures 41 are provided with liner 4, and in liner 4
One layer of sound absorbing layer 3 is provided between bellows 2, this structure plays a part of dissipative muffler, when sound wave is by being vented ripple
During pipe 2, sound absorbing layer 3 can effectively absorb a part of exhaust noise, can effectively eliminate the noise of middle and high frequency, can also keep away
Exempt from vibration between liner 4 and bellows 2 and hit generation noise.One end of sound absorbing layer 3 is fixed with liner 4, and the other end is can be relative
The free end of the activity of liner 4.So installation sound absorbing layer 3 can prevent sound absorbing layer 3 from moving freely, and can avoid sound absorbing layer 3 right again
Freely stretching for liner 4 causes to hinder.The material of sound absorbing layer 3 uses glass fibre.Glass fibre sound-proofing is good, and heat resistance is strong,
Tensile strength is high, is a kind of good sound-absorbing material.
Exemplary description has been carried out to the utility model above in conjunction with accompanying drawing, it is clear that it is of the present utility model realization not by
The limitation of aforesaid way, if the various improvement that methodology and technical scheme of the present utility model are carried out are employed, or without
Improve and design of the present utility model and technical scheme are directly applied into other occasions, in the scope of protection of the utility model
It is interior.
Claims (8)
1. a kind of exhaust expansion bellowses with silencing function, including bellows, it is characterised in that also including spacing network structure and interior
Lining；The spacing network structure is arranged at outside the bellows, and the both ends of the spacing network structure be individually fixed in it is described
The both ends of bellows, the liner are arranged in the bellows, and sound-absorbing is additionally provided between the liner and the bellows
Layer.
2. the exhaust expansion bellowses according to claim 1 with silencing function, it is characterised in that the spacing network structure
The both ends of the bellows are fixed at both ends by end ring respectively.
3. the exhaust expansion bellowses according to claim 1 or 2 with silencing function, it is characterised in that the spacing netted knot
Structure is metal net.
4. the exhaust expansion bellowses according to claim 1 with silencing function, it is characterised in that the interior lining is also machined with
A series of apertures.
5. the exhaust expansion bellowses with silencing function according to claim 1 or 4, it is characterised in that the liner is flexible
Nodule structure.
6. the exhaust expansion bellowses according to claim 1 with silencing function, it is characterised in that one end of the sound absorbing layer with
The liner is fixed, the other end be can relatively described lining activities free end.
7. the exhaust expansion bellowses with silencing function according to claim 1 or 6, it is characterised in that the material of the sound absorbing layer
Material uses glass fibre.
8. according to the exhaust expansion bellowses with silencing function described in claim 1,2,4 or 6, it is characterised in that the bellows
For the airtight bellows of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720700999.XU CN207018073U (en) | 2017-06-16 | 2017-06-16 | A kind of exhaust expansion bellowses with silencing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720700999.XU CN207018073U (en) | 2017-06-16 | 2017-06-16 | A kind of exhaust expansion bellowses with silencing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018073U true CN207018073U (en) | 2018-02-16 |
Family
ID=61485136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720700999.XU Active CN207018073U (en) | 2017-06-16 | 2017-06-16 | A kind of exhaust expansion bellowses with silencing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018073U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026613A (en) * | 2018-07-17 | 2018-12-18 | 安徽寅时压缩机制造有限公司 | A kind of compressor exhaust apparatus |
| CN113153493A (en) * | 2021-04-26 | 2021-07-23 | 吉林大学 | Exhaust silencer for internal combustion engine |
-
2017
- 2017-06-16 CN CN201720700999.XU patent/CN207018073U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026613A (en) * | 2018-07-17 | 2018-12-18 | 安徽寅时压缩机制造有限公司 | A kind of compressor exhaust apparatus |
| CN113153493A (en) * | 2021-04-26 | 2021-07-23 | 吉林大学 | Exhaust silencer for internal combustion engine |
| CN113153493B (en) * | 2021-04-26 | 2023-03-28 | 吉林大学 | Exhaust silencer for internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100018798A1 (en) | Noise silencer for construction equipment | |
| CN207018073U (en) | A kind of exhaust expansion bellowses with silencing function | |
| CN106401697B (en) | A kind of diesel generating set composite muffler | |
| CN203847446U (en) | Composite silencer | |
| CN204703984U (en) | Impedance composite muffler | |
| CN2668862Y (en) | Corrugated pipe shock-avoiding impedance composite silencer | |
| CN102364103A (en) | Silencer for wind-driven water pump | |
| CN202117739U (en) | Resistant/retardant combined type exhaust muffler | |
| CN205349495U (en) | Muffler for motorcycle | |
| CN205330766U (en) | Aperture high frequency silencer | |
| TWI681110B (en) | Structure improvement of silencer unit | |
| CN212055298U (en) | Combined type noise reduction cover for roof fan | |
| CN201502421U (en) | Anti-noise structure for motor of diesel generator | |
| CN207718799U (en) | A kind of novel impedance complex muffler | |
| CN214577358U (en) | Supercharger silencing structure and engine supercharger | |
| CN220185773U (en) | Low-noise air conditioner compressor | |
| CN212202399U (en) | Buffering and noise-reducing exhaust pipe of compressor | |
| CN217462307U (en) | Auxiliary muffler assembly capable of effectively reducing noise for automobile | |
| CN211820091U (en) | Vibration damping and silencing type fan support structure | |
| CN214366288U (en) | Engineering machine tool silencer | |
| RU2721394C1 (en) | Internal combustion engine exhaust system noise suppressor | |
| CN219673658U (en) | Noise elimination device | |
| CN219605371U (en) | Silencing assembly for vehicle | |
| CN220102464U (en) | Warm ventilation flow muffler | |
| CN220578669U (en) | Elevator car with noise reduction function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |