CN108194167A - A kind of silencer for motor vehicle - Google Patents
A kind of silencer for motor vehicle Download PDFInfo
- Publication number
- CN108194167A CN108194167A CN201711497224.8A CN201711497224A CN108194167A CN 108194167 A CN108194167 A CN 108194167A CN 201711497224 A CN201711497224 A CN 201711497224A CN 108194167 A CN108194167 A CN 108194167A
- Authority
- CN
- China
- Prior art keywords
- venthole group
- venthole
- snorkel
- mesoporous
- silencer
- 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 abstract description 23
- 238000005192 partition Methods 0.000 claims abstract description 12
- 239000011358 absorbing material Substances 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of silencer for motor vehicle, including muffler body, journal stirrup, front end snorkel and tail pipe, partition board is equipped in the muffler body, muffler body is separated into front cavity and rear chamber by partition board, partition board is equipped with the first snorkel, the second snorkel is equipped on the inside of first snorkel, the second ventilation pipe end is blocked by the first blanking cover, and the second snorkel side wall is equipped with multiple evenly spaced first venthole groups；The first vent hood for surrounding second snorkel is additionally provided on the outside of second snorkel, the side wall of the first vent hood is equipped with evenly spaced second venthole group；The net cylinder with mesh is equipped on the inner wall of rear chamber, sound-absorbing material is equipped between net cylinder and rear chamber inner wall.The present invention coordinates sound-absorbing material to eliminate the noise by using setting multilayer aperture, can eliminate the noise of wide range frequency, simple and reliable for structure, noise reduction capability is strong.
Description
Technical field
The invention belongs to silencer technical fields, and in particular to a kind of silencer for motor vehicle.
Background technology
Silencer is that air-flow is allowed to pass through, but can prevent or reduce a kind of device of sound transmission, is to eliminate air to move
The important measures of power noise.Silencer can stop the propagation of sound wave, and air-flow is allowed to pass through, and be the effective work for controlling noise
Tool.
The silencer of traditional motor vehicles, usually mostly is the noise for considering to eliminate particular frequency range, can not will be big
The noise of range multi-frequency is eliminated well, narrow scope of application.
Invention content
For the deficiency in the presence of the prior art, making an uproar for wide range frequency can be eliminated the present invention provides a kind of
Sound, silencer for motor vehicle simple and reliable for structure, noise reduction capability is strong.
A kind of silencer including muffler body, the journal stirrup being arranged on the outside of muffler body, is arranged on muffler body
The front end snorkel of one end and the tail pipe for being arranged on the muffler body other end, the muffler body by front end snorkel with
Exhaust pipe connects, and the muffler body is stretched into the described one end of front end snorkel far from exhaust pipe, in the muffler body
Equipped with partition board, muffler body is separated into towards the front cavity of front end snorkel side and towards tail pipe side by the partition board
Rear chamber, the partition board are equipped with the first snorkel, and first snorkel on the inside of the front end snorkel side far from setting
There is the second snorkel that diameter is less than first snorkel, the second ventilation pipe end is blocked by the first blanking cover, and described the
Two snorkel side walls are equipped with multiple evenly spaced first venthole groups；It is additionally provided on the outside of second snorkel described in surrounding
First vent hood of the second snorkel, the side wall of first vent hood are equipped with multiple evenly spaced second venthole groups；
The inner wall of cavity is equipped with the net cylinder with mesh in the rear, and sound absorption material is equipped between the net cylinder and the rear chamber inner wall
Material.
Further, the diameter of the second venthole group mesoporous is not less than the first venthole group, and described second is logical
The spacing of stomata group mesoporous is not less than the first venthole group.
Further, the diameter of the second venthole group mesoporous is 1.4~1.8 times of the first venthole group, described
The spacing of two venthole group mesoporous is 1.2~1.5 times of the first venthole group.
Further, the rear chamber is stretched into described tail pipe one end and it stretches into one end of rear chamber and is blocked up by the second blanking cover
Firmly, the tail pipe stretches into the circumferencial direction of the side wall of back cavity body portion equipped with multiple evenly spaced third venthole groups, institute
State the second vent hood for being additionally provided on the outside of third venthole group and surrounding the third venthole group, the side of second vent hood
Wall is equipped with multiple evenly spaced 4th venthole groups.
Further, the diameter of the 4th venthole group mesoporous is not more than the third venthole group, the four-way
The spacing of stomata group mesoporous is not more than third venthole group.
Further, the diameter of the third venthole group mesoporous is 1.4~1.8 times of the 4th venthole group, described
The spacing of three venthole group mesoporous is 1.2~1.5 times of the 4th venthole group.
Further, the diameter of the 4th venthole group mesoporous is not less than the second venthole group, the four-way
The spacing of stomata group mesoporous is not less than the second venthole group.
Further, the diameter of the 4th venthole group mesoporous is 1.4~1.8 times of the second venthole group, described
The spacing of four venthole group mesoporous is 1.2~1.5 times of the second venthole group.
Further, the sound-absorbing material is glass fibre or sponge plastics.
Compared with the prior art, the present invention has the advantages that：
The present invention coordinates sound-absorbing material to eliminate the noise by using setting multilayer aperture, can well push away noise frequency
The sensitive range of human ear simultaneously passes through resistive material and is eliminated, and can eliminate the noise of wide range frequency, it is simple in structure can
It leans on, noise reduction capability is strong.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention 1；
Fig. 2 is the structure diagram of the embodiment of the present invention 2.
Wherein, 1 muffler body, 2 journal stirrups, 3 front end snorkels, 4 tail pipes, 5 partition boards, 6 front cavities, 7 rear chambers, 8 first
Snorkel, 9 second snorkels, 10 first blanking covers, 11 first venthole groups, 12 first vent hoods, 13 second venthole groups, 14 nets
Cylinder, 15 sound-absorbing materials, 16 second blanking covers, 17 third venthole groups, 18 second vent hoods, 19 the 4th venthole groups.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness for realizing invention are easy to understand, with reference to
It is specifically illustrating, the present invention is further explained.
Embodiment 1：
A kind of silencer, as shown in Figure 1, including muffler body 1, the journal stirrup 2 being arranged on the outside of muffler body 1, setting
It puts in the front end snorkel 3 of 1 one end of muffler body and the tail pipe 4 for being arranged on 1 other end of muffler body, the silencer master
Body 1 is connect by front end snorkel 3 with exhaust pipe, and the silencer is stretched into the described one end of front end snorkel 3 far from exhaust pipe
Main body 1, the muffler body 1 is interior to be equipped with partition board 5, and muffler body 1 is separated into towards front end snorkel 3 by the partition board 5
The front cavity 6 of side and the rear chamber 7 towards 4 side of tail pipe, the partition board 5 are equipped with the first snorkel 8, first ventilation
Inside of the pipe 8 far from 3 side of front end snorkel is equipped with the second snorkel 9 that diameter is less than first snorkel 8, described
Second snorkel, 9 end is blocked by the first blanking cover 10, and it is logical that 9 side wall of the second snorkel is equipped with multiple evenly spaced first
Stomata group 11；Second snorkel, 9 outside is additionally provided with the first vent hood 12 for surrounding second snorkel 9, and described first
The side wall of vent hood 12 is equipped with multiple evenly spaced second venthole groups 13；The inner wall of cavity 7 is equipped with band in the rear
There is the net cylinder 14 of mesh, sound-absorbing material 15 is equipped between 7 inner wall of the net cylinder 14 and the rear chamber.
Scheme in the present embodiment coordinates sound-absorbing material to eliminate the noise by using setting multilayer aperture, will can make an uproar well
Acoustic frequency pushes away the sensitive range of human ear and passes through resistive material and eliminated, and can eliminate the noise of wide range frequency,
Simple and reliable for structure, noise reduction capability is strong.
As a further optimization of the scheme , the diameter of 13 mesoporous of the second venthole group is not less than first venthole
Group 11, the spacing of 13 mesoporous of the second venthole group are not less than the first venthole group 11.
Particularly, the diameter of 13 mesoporous of the second venthole group is 1.4~1.8 times of the first venthole group 11, described
The spacing of second venthole group, 13 mesoporous is 1.2~1.5 times of the first venthole group 11.The aperture of first venthole group 11 it is straight
0.5~1mm can be used in diameter.
In the present solution, air-flow, which initially passes through the first venthole group, is then passed through the second venthole group, later group setting diameter and
Spacing is more slightly larger than previous group, can further improve noise elimination effect in the case where unobvious improve back pressure.
As a further optimization of the scheme , the sound-absorbing material 15 is glass fibre or sponge plastics.
Embodiment 2：
In the embodiment 1 on the basis of any scheme, as shown in Fig. 2, the back cavity is stretched into 4 one end of the tail pipe
Body 7 and its stretch into one end of rear chamber 7 and blocked by the second blanking cover 16, the tail pipe 4 stretches into the circumference of the side wall of 7 part of rear chamber
Direction is equipped with multiple evenly spaced third venthole groups 17, the outside of the third venthole group 17 be additionally provided with surround it is described
Second vent hood 18 of third venthole group 17, the side wall of second vent hood 18 are equipped with multiple evenly spaced four-ways
Stomata group 19.
Two venthole groups are increased again relative to embodiment 1 in the present embodiment, noise reduction capability further improves.
As a further optimization of the scheme , the diameter of 19 mesoporous of the 4th venthole group is not more than the third venthole
Group 17, the spacing of 19 mesoporous of the 4th venthole group are not more than third venthole group 17.
Particularly, the diameter of 17 mesoporous of third venthole group is 1.4~1.8 times of the 4th venthole group 19, described
The spacing of 17 mesoporous of third venthole group is 1.2~1.5 times of the 4th venthole group 19.
As a further optimization of the scheme , the diameter of 19 mesoporous of the 4th venthole group is not less than second venthole
Group 13, the spacing of 19 mesoporous of the 4th venthole group are not less than the second venthole group 13.
Particularly, the diameter of 19 mesoporous of the 4th venthole group is 1.4~1.8 times of the second venthole group 13, described
The spacing of 4th venthole group, 19 mesoporous is 1.2~1.5 times of the second venthole group 13.
The foregoing is merely the preferred embodiment of the present invention, protection scope of the present invention is not limited in above-mentioned embodiment party
Formula, every technical solution for belonging to the principle of the invention all belong to the scope of protection of the present invention.For those skilled in the art
Speech, several improvement carried out without departing from the principles of the present invention, these improvement also should be regarded as the protection model of the present invention
It encloses.
Claims (9)
1. a kind of silencer for motor vehicle including muffler body, the journal stirrup being arranged on the outside of muffler body, is arranged on silencer
The front end snorkel of main body one end and the tail pipe for being arranged on the muffler body other end, the muffler body are ventilated by front end
Pipe is connect with exhaust pipe, it is characterised in that：
The muffler body is stretched into the described one end of front end snorkel far from exhaust pipe, be equipped in the muffler body every
Muffler body is separated into the front cavity towards front end snorkel side and the back cavity towards tail pipe side by plate, the partition board
Body, the partition board are equipped with the first snorkel, and inside of first snorkel far from the front end snorkel side is equipped with straight
Diameter is less than the second snorkel of first snorkel, and the second ventilation pipe end is blocked by the first blanking cover, and described second is logical
Tracheae side wall is equipped with evenly spaced first venthole group；It is additionally provided on the outside of second snorkel and surrounds second ventilation
First vent hood of pipe, the side wall of first vent hood are equipped with evenly spaced second venthole group；Cavity in the rear
Inner wall be equipped with mesh net cylinder, between the net cylinder and the rear chamber inner wall be equipped with sound-absorbing material.
2. a kind of silencer for motor vehicle according to claim 1, it is characterised in that：
The diameter of the second venthole group mesoporous is not less than the first venthole group, between the second venthole group mesoporous
Away from not less than the first venthole group.
3. a kind of silencer for motor vehicle according to claim 2, it is characterised in that：
The diameter of the second venthole group mesoporous is 1.4~1.8 times of the first venthole group, the second venthole group mesoporous
Spacing be 1.2~1.5 times of the first venthole group.
4. according to a kind of silencer for motor vehicle of claims 1 to 3 any one of them, it is characterised in that：
The rear chamber is stretched into described tail pipe one end and it stretches into one end of rear chamber and is blocked by the second blanking cover, and the tail pipe stretches into
The circumferencial direction of the side wall of back cavity body portion is equipped with evenly spaced third venthole group, the outside of the third venthole group
It is additionally provided with the second vent hood for surrounding the third venthole group, the side wall of second vent hood is equipped with evenly spaced the
Four venthole groups.
5. a kind of silencer for motor vehicle according to claim 4, it is characterised in that：
The diameter of the 4th venthole group mesoporous is not more than the third venthole group, between the 4th venthole group mesoporous
Away from no more than third venthole group.
6. a kind of silencer for motor vehicle according to claim 5, it is characterised in that：
The diameter of the third venthole group mesoporous is 1.4~1.8 times of the 4th venthole group, the third venthole group mesoporous
Spacing be 1.2~1.5 times of the 4th venthole group.
7. a kind of silencer for motor vehicle according to claim 5, it is characterised in that：
The aperture of the 4th venthole group mesoporous is not less than the second venthole group, between the 4th venthole group mesoporous
Away from not less than the second venthole group.
8. a kind of silencer for motor vehicle according to claim 7, it is characterised in that：
The diameter of the 4th venthole group mesoporous is 1.4~1.8 times of the second venthole group, the 4th venthole group mesoporous
Spacing be 1.2~1.5 times of the second venthole group.
9. a kind of silencer for motor vehicle according to claim 1, it is characterised in that：
The sound-absorbing material is glass fibre or sponge plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711497224.8A CN108194167A (en) | 2017-12-31 | 2017-12-31 | A kind of silencer for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711497224.8A CN108194167A (en) | 2017-12-31 | 2017-12-31 | A kind of silencer for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194167A true CN108194167A (en) | 2018-06-22 |
Family
ID=62587646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711497224.8A Pending CN108194167A (en) | 2017-12-31 | 2017-12-31 | A kind of silencer for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108194167A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202228158U (en) * | 2011-09-23 | 2012-05-23 | 安徽江淮汽车股份有限公司 | Light truck silencer |
| CN202402102U (en) * | 2012-01-16 | 2012-08-29 | 重庆碧天工贸有限公司 | Exhaust silencer of motorcycle |
| CN103670602A (en) * | 2013-11-28 | 2014-03-26 | 武汉理工大学 | Three-layer series micro-perforated pipe muffler |
| CN204371457U (en) * | 2014-10-24 | 2015-06-03 | 重庆金仑工业股份有限公司 | Exhaust system for motorcycle silencing apparatus |
| CN106014544A (en) * | 2016-05-31 | 2016-10-12 | 清华大学苏州汽车研究院（相城） | Automobile gas exhaust silencer |
| CN107387201A (en) * | 2017-09-20 | 2017-11-24 | 重庆隆鑫机车有限公司 | It is vented sympathetic response type silencer and its motorcycle |
| CN207795347U (en) * | 2017-12-31 | 2018-08-31 | 重庆固发机械制造有限责任公司 | Silencer for motor vehicle |
-
2017
- 2017-12-31 CN CN201711497224.8A patent/CN108194167A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202228158U (en) * | 2011-09-23 | 2012-05-23 | 安徽江淮汽车股份有限公司 | Light truck silencer |
| CN202402102U (en) * | 2012-01-16 | 2012-08-29 | 重庆碧天工贸有限公司 | Exhaust silencer of motorcycle |
| CN103670602A (en) * | 2013-11-28 | 2014-03-26 | 武汉理工大学 | Three-layer series micro-perforated pipe muffler |
| CN204371457U (en) * | 2014-10-24 | 2015-06-03 | 重庆金仑工业股份有限公司 | Exhaust system for motorcycle silencing apparatus |
| CN106014544A (en) * | 2016-05-31 | 2016-10-12 | 清华大学苏州汽车研究院（相城） | Automobile gas exhaust silencer |
| CN107387201A (en) * | 2017-09-20 | 2017-11-24 | 重庆隆鑫机车有限公司 | It is vented sympathetic response type silencer and its motorcycle |
| CN207795347U (en) * | 2017-12-31 | 2018-08-31 | 重庆固发机械制造有限责任公司 | Silencer for motor vehicle |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
|
| RJ01 | Rejection of invention patent application after publication |