CN109779721A - A kind of modularization silencer - Google Patents
A kind of modularization silencer Download PDFInfo
- Publication number
- CN109779721A CN109779721A CN201910201788.5A CN201910201788A CN109779721A CN 109779721 A CN109779721 A CN 109779721A CN 201910201788 A CN201910201788 A CN 201910201788A CN 109779721 A CN109779721 A CN 109779721A
- Authority
- CN
- China
- Prior art keywords
- cavity
- wall
- layer
- sound
- muffler shell
- 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.)
- Pending
Links
- 230000003584 silencer Effects 0.000 title claims description 20
- 239000010410 layer Substances 0.000 claims abstract description 48
- 238000005192 partition Methods 0.000 claims abstract description 18
- 239000011247 coating layer Substances 0.000 claims abstract description 14
- 239000011494 foam glass Substances 0.000 claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 13
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 13
- 239000011148 porous material Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006698 induction Effects 0.000 abstract description 4
- 230000008030 elimination Effects 0.000 description 6
- 238000003379 elimination reaction Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The invention discloses a kind of modularization silencers, including muffler shell, the inside of the muffler shell is equipped with core pipe, pass through the first cavity of first partition and second partition dividing layer between the outer wall of the core pipe and the inner wall of muffler shell, second cavity and third cavity, being internally located on the inner wall of muffler shell for first cavity is provided with polyurethane foam layer, being internally located on muffler shell inner wall for second cavity is provided with foam glass layer, the surface that the side of the transverse slat is located at first through hole is provided with plastics sound-absorbing film layer, third cavity one end opposite with plastics sound-absorbing film layer, which is located on muffler shell inner wall, is coated with sound deadening coating layer, the outer wall of the core pipe is located at the first cavity, the inside of second cavity and third cavity offers the second through-hole, the present invention, internal structure is simple and empty Between be fully utilized, improve centering high-frequency range in induction noise sound-absorbing effect.
Description
Technical field
The present invention relates to automotive muffler technical fields, and in particular to a kind of modularization silencer.
Background technique
The market sustainable growth of today's society passenger car, family's vehicle guaranteeding organic quantity constantly rise, requirement of the customer to automobile
It is continuously improved, increasingly values the NVH performance of the internal performance quality of automobile, especially vehicle；Engine is the main of automobile
One of noise source, and induction noise is one of engine main sound source；Induction noise is due to engine air throttle periodicity
It is opened and closed what the variation of bring pressure pulse and air-flow were formed with admission line wall friction；As adding for oil consumption emission regulation, is tight,
The development trend of engine develops toward small sized turbine pressurization direction, and the application of turbocharger is so that engine intake airflow increases
Greatly, so that allowing becomes more prominent the problem of induction noise；The prior art is to constitute to expand using the internal volume of air cleaner
Chamber silencer is opened, the sound-absorbing materials such as filter core play the function of dissipative muffler simultaneously.In addition, can not be solved for air cleaner
Frequency band noise problem, general resonant cavity, 1/4 wavelength tube and Helmholtz silencer etc. by increasing large volume eliminate the noise member
Part is eliminated the noise.But being continuously increased with whole vehicle functions, the arrangement space of front deck is more and more compacter, limits gas handling system
The arrangement space of silencer element restricts the promotion of vehicle NVH performance.
Currently, current intake muffler internal structure is complex, when being applied in combination inside other than partition, also need basis
Frequency of noise elimination demand installs different baffles, and there are segment space waste, effect are relatively also poor inside silencer.
Summary of the invention
The purpose of the present invention is to provide a kind of modularization silencers, work as to solve to mention in above-mentioned background technique
Preceding intake muffler internal structure is complex, when being applied in combination inside other than partition, also need according to frequency of noise elimination demand pacify
Fill different baffles, and inside silencer there are segment space waste, effect is relatively also poor the problems such as.
To achieve the above object, the invention provides the following technical scheme: a kind of modularization silencer, including outside silencer
Shell, the inside of the muffler shell are equipped with core pipe, by the between the outer wall of the core pipe and the inner wall of muffler shell
The first cavity of one partition and second partition dividing layer, the second cavity and third cavity, first cavity are internally located at noise elimination
Polyurethane foam layer is provided on the inner wall of device shell, being internally located on muffler shell inner wall for second cavity is set
It is equipped with foam glass layer, the inside of the third cavity is fixed with transverse slat, and the inside of the transverse slat offers first through hole, described
The surface that the side of transverse slat is located at first through hole is provided with plastics sound-absorbing film layer, and the third cavity is opposite with plastics sound-absorbing film layer
One end be located on muffler shell inner wall and be coated with sound deadening coating layer, the outer wall of the core pipe is located at the first cavity, second empty
The inside of chamber and third cavity offers the second through-hole.
Preferably, the shape of the first through hole is circle.
Preferably, the polyurethane foam layer, foam glass layer, plastics sound-absorbing film layer and sound deadening coating layer thickness
It is between two millimeters to three millimeters.
Preferably, it is distributed between first circular columns, the second circular columns and third circular columns at isosceles triangle.
Preferably, second through-hole is uniformly arranged to be equidistant, and the pore size of the second through-hole is two millimeters to four
Between millimeter.
Compared with prior art, the beneficial effects of the present invention are:
1, of the invention, internal structure is simple and space is fully utilized, and arrangement space is compact, improve in centering high-frequency range into
The sound-absorbing effect of gas noise；
2, the present invention is inhaled by the way that first partition, second partition, core pipe, polyurethane foam layer, foam glass layer, plastics are added
The setting of sound film layer and sound deadening coating layer, the first cavity that noise can be formed by first partition and second partition, second
The polyurethane foam layer of cavity and third cavity inside, foam glass layer, plastics sound-absorbing film layer and sound deadening coating layer change
Curve is lost in the transmitting of modularization silencer, and segmentation degree noise is absorbed, and improves the effect to noise absorbent.
Detailed description of the invention
Fig. 1 is top view cross section structural schematic diagram of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is left view of the invention.
In figure: 1, muffler shell；2, core pipe；3, first partition；4, second partition；5, the first cavity；6, the second cavity；
7, third cavity；8, polyurethane foam layer；9, foam glass layer；10, transverse slat；11, first through hole；12, plastics absorptive membrane
Layer；13, sound deadening coating layer；14, the second through-hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution as shown in Figs. 1-3, a kind of modularization silencer, including outside silencer
Shell 1, the inside of the muffler shell 1 are equipped with core pipe 2, lead between the outer wall of the core pipe 2 and the inner wall of muffler shell 1
Cross 4 dividing layer the first cavity 5 of first partition 3 and second partition, the second cavity 6 and third cavity 7, first cavity 5 it is interior
Portion, which is located on the inner wall of muffler shell 1, is provided with polyurethane foam layer 8, and second cavity 6 is internally located at noise elimination
Be provided with foam glass layer 9 on 1 inner wall of device shell, the inside of the third cavity 7 is fixed with transverse slat 10, the transverse slat 10 it is interior
Portion offers first through hole 11, and the surface that the side of the transverse slat 10 is located at first through hole 11 is provided with plastics sound-absorbing film layer 12,
The third cavity 7 one end opposite with plastics sound-absorbing film layer 12, which is located on 1 inner wall of muffler shell, is coated with sound deadening coating layer
13, the inside that the outer wall of the core pipe 2 is located at the first cavity 5, the second cavity 6 and third cavity 7 offers the second through-hole 14.
Specifically, the shape of the first through hole 11 is circle, more convenient can make an uproar sonic propagation, conveniently pass through sound-absorbing
Dope layer 13 carries out absorption again to noise.
Specifically, the polyurethane foam layer 8, foam glass layer 9 and sound deadening coating layer 13 are pasted by glue
On the inside of muffler shell 1, polyurethane foam layer 8, foam glass layer 9 and sound deadening coating layer 13 can be made solid in this way
Fixed is more simple.
Specifically, the polyurethane foam layer 8, foam glass layer 9, plastics sound-absorbing film layer 12 and sound deadening coating layer 13
Thickness be that can more fully be absorbed in this way to sound with reasonable utilization space between two millimeters to three millimeters,
Reducing noise.
Specifically, second through-hole 14 is uniformly arranged to be equidistant, and the pore size of the second through-hole 14 is two millimeters
It, can be by the pore size and quantity of the second through-hole 14 of change, to change the biography of modularization silencer between four millimeters
Loss curve is passed, the noise elimination demand under different scenes is adapted to.
Working principle: in use, the noise for starting motivation to generate carries out core pipe 2 at this moment due to core by muffler shell 1
By forming the first cavity 5, the by first partition 3 and second partition 4 between the outer wall of pipe 2 and the inner wall of muffler shell 1
Two cavitys 6 and third cavity 7, at this moment noise is introduced into the first cavity 5 by polyurethane by the second through-hole 14 on 2 outer wall of core pipe
Foam layer 8 absorbs, and is absorbed subsequently into the second cavity 6 by foam glass layer 9, is then again introduced into third cavity 7
It is successively successively absorbed by plastics sound-absorbing film layer 12 and sound deadening coating layer 13 by first through hole 11, can change modularization in this way and disappear
Curve is lost in the transmitting of sound device, and internal structure is simple and space is fully utilized, and arrangement space is compact, improves the absorption to noise
Effect adapts to the noise elimination demand under different scenes.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (5)
1. a kind of modularization silencer, including muffler shell (1), it is characterised in that: the inside of the muffler shell (1)
It is equipped with core pipe (2), passes through first partition (3) and second between the outer wall of the core pipe (2) and the inner wall of muffler shell (1)
Partition (4) first cavity of dividing layer (5), the second cavity (6) and third cavity (7), being internally located at for the first cavity (5) disappear
It is provided on the inner wall of sound device shell (1) polyurethane foam layer (8), second cavity (6) is internally located at silencer
It is provided with foam glass layer (9) on shell (1) inner wall, the inside of the third cavity (7) is fixed with transverse slat (10), the transverse slat
(10) inside offers first through hole (11), and the surface that the side of the transverse slat (10) is located at first through hole (11) is provided with modeling
Expect sound-absorbing film layer (12), the third cavity (7) and the opposite one end of plastics sound-absorbing film layer (12) are located in muffler shell (1)
It is coated on wall sound deadening coating layer (13), it is empty that the outer wall of the core pipe (2) is located at the first cavity (5), the second cavity (6) and third
The inside of chamber (7) offers the second through-hole (14).
2. a kind of modularization silencer according to claim 1, it is characterised in that: the shape of the first through hole (11)
For circle.
3. a kind of modularization silencer according to claim 1, it is characterised in that: the polyurethane foam layer
(8), foam glass layer (9) and sound deadening coating layer (13) are pasted on the inside of muffler shell (1) by glue.
4. a kind of modularization silencer according to claim 1, it is characterised in that: the polyurethane foam layer
(8), the thickness of foam glass layer (9), plastics sound-absorbing film layer (12) and sound deadening coating layer (13) be two millimeters to three millimeters it
Between.
5. a kind of modularization silencer according to claim 1, it is characterised in that: second through-hole (14) is equidistant
From being uniformly arranged, and the pore size of the second through-hole (14) is between two millimeters to four millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201788.5A CN109779721A (en) | 2019-03-18 | 2019-03-18 | A kind of modularization silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201788.5A CN109779721A (en) | 2019-03-18 | 2019-03-18 | A kind of modularization silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109779721A true CN109779721A (en) | 2019-05-21 |
Family
ID=66489354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910201788.5A Pending CN109779721A (en) | 2019-03-18 | 2019-03-18 | A kind of modularization silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242816A (en) * | 2019-06-24 | 2019-09-17 | 空气动力学国家重点实验室 | A kind of muffler for eliminating discrete high frequency howling |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19504223A1 (en) * | 1995-02-09 | 1996-08-14 | Volkswagen Ag | Intake silencer for internal combustion engine |
| KR20120016702A (en) * | 2010-08-17 | 2012-02-27 | 현대중공업 주식회사 | Hybrid exhaust gas silencer |
| CN205013165U (en) * | 2015-10-13 | 2016-02-03 | 长春乐石科技有限公司 | Engine and silencer thereof |
| CN106014545A (en) * | 2016-06-30 | 2016-10-12 | 泉州市知产茂业工业设计有限公司 | Novel silencer for engine |
| CN206111280U (en) * | 2016-10-25 | 2017-04-19 | 力帆实业(集团)股份有限公司 | Rearmounted silencer of car |
| CN206376956U (en) * | 2016-12-28 | 2017-08-04 | 长城汽车股份有限公司 | The gas handling system of silencer and vehicle |
| CN209586469U (en) * | 2019-03-18 | 2019-11-05 | 汉腾汽车有限公司 | A kind of modularization silencer |
-
2019
- 2019-03-18 CN CN201910201788.5A patent/CN109779721A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19504223A1 (en) * | 1995-02-09 | 1996-08-14 | Volkswagen Ag | Intake silencer for internal combustion engine |
| KR20120016702A (en) * | 2010-08-17 | 2012-02-27 | 현대중공업 주식회사 | Hybrid exhaust gas silencer |
| CN205013165U (en) * | 2015-10-13 | 2016-02-03 | 长春乐石科技有限公司 | Engine and silencer thereof |
| CN106014545A (en) * | 2016-06-30 | 2016-10-12 | 泉州市知产茂业工业设计有限公司 | Novel silencer for engine |
| CN206111280U (en) * | 2016-10-25 | 2017-04-19 | 力帆实业(集团)股份有限公司 | Rearmounted silencer of car |
| CN206376956U (en) * | 2016-12-28 | 2017-08-04 | 长城汽车股份有限公司 | The gas handling system of silencer and vehicle |
| CN209586469U (en) * | 2019-03-18 | 2019-11-05 | 汉腾汽车有限公司 | A kind of modularization silencer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242816A (en) * | 2019-06-24 | 2019-09-17 | 空气动力学国家重点实验室 | A kind of muffler for eliminating discrete high frequency howling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204163804U (en) | Automobile exhaust pipe baffler | |
| CN106468197B (en) | A kind of wideband noise-reducing silencer | |
| CN205654400U (en) | Silencer | |
| CN2921306Y (en) | Impedance composite noise silencer | |
| JP2010521612A (en) | Exhaust system muffler | |
| CN209557068U (en) | Impedance composite muffler | |
| CN209586469U (en) | A kind of modularization silencer | |
| CN201021648Y (en) | A novel impedance compound muffling system for car engine air supply system | |
| CN202228158U (en) | Light truck silencer | |
| CN109779721A (en) | A kind of modularization silencer | |
| CN205823380U (en) | A kind of automobile engine to exhaust deafener | |
| CN106321193A (en) | Rear silencer of sedan | |
| CN209604120U (en) | A kind of automotive air intake pipeline noise elimination structure | |
| CN204703984U (en) | Impedance composite muffler | |
| CN203835496U (en) | Silencer | |
| CN208364208U (en) | A kind of lost type silencer of the pipe of impedance three | |
| CN203347888U (en) | SCR muffling mechanism | |
| CN207297135U (en) | A kind of automobile silencing exhaust pipe | |
| CN204783176U (en) | Light truck muffler | |
| CN206487543U (en) | A kind of diesel-driven generator exhaust silencer system | |
| CN204436545U (en) | Light truck muffler for internal combustion engine | |
| CN211314347U (en) | Noise reduction device for automobile | |
| CN203515734U (en) | Composite silencer | |
| CN204877594U (en) | Compound silencer of expansion resonance | |
| CN105927315B (en) | A kind of impedance composite muffler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |