CN206503658U - Pipe muffler and the induction system of internal combustion engine including it - Google Patents
Pipe muffler and the induction system of internal combustion engine including it Download PDFInfo
- Publication number
- CN206503658U CN206503658U CN201621371366.0U CN201621371366U CN206503658U CN 206503658 U CN206503658 U CN 206503658U CN 201621371366 U CN201621371366 U CN 201621371366U CN 206503658 U CN206503658 U CN 206503658U
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- China
- Prior art keywords
- sound
- inner tube
- outer tube
- proof material
- gap
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 230000006698 induction Effects 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 239000011358 absorbing material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008030 elimination Effects 0.000 abstract description 4
- 238000003379 elimination reaction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 7
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
A kind of pipe muffler and the induction system of internal combustion engine including it, the muffler include：Outer tube；Inner tube, the inner side of the Inner pipes forms the flow channel for flow of fluid, and is sheathed in the outer tube and is defined between the outer tube multiple holes are formed with a gap, said inner tube, and the hole makes the gap be connected with the flow channel of said inner tube；And Sound-proof material, the Sound-proof material is located in the gap, is close to said inner tube and covers the multiple hole, so that only respective apertures are partially exposed in inner tube inlet channel.According to pipe muffler of the present utility model, sound-absorbing material is arranged on the outside of inner tube, it is to avoid sound-absorbing material easily contaminated problem；Multiple holes are set on Inner pipes, noise elimination frequency band can be not only widened but also so that being partially exposed in inner tube inlet channel for Sound-proof material only respective apertures, reduces pollution, it is ensured that soundproof effect.
Description
Technical field
The present invention relates to the gas handling system of internal combustion engine, more particularly to for internal combustion engine gas handling system pipeline silencing
Device.
Background technology
The gas handling system of engine generally includes the admission line that air and/or combustion gas are introduced into internal combustion engines.By
Be previously switched off in inlet valve, be obstructed into gas in pipeline, the reason such as air column resonance, admission line turns into extremely complex
Noise source, comprising various types of noises, thus usually requires to carry out noise reduction using effective muffler.At present, on the market
Muffler mainly includes resistive muffler, resistant noise-reducing device, impedance complex formula muffler.Wherein, disappear for the resistive of engine
Sound device mainly uses the sound absorption of sound-absorbing material.Generally, sound-absorbing material is fixed on the periphery of inner wall of admission line, or by one
Determine mode to arrange in the gas passage of admission line.Such set-up mode not only can hinder the smooth of air-flow to pass through, moreover,
Because sound-absorbing material large area is in the gas channel of admission line, the fuel droplets easily condensed in admission line are dirty
Dye, causes soundproof effect to reduce or disappear.
The content of the invention
Based on this, it is necessary to the problem of being easily contaminated for sound-absorbing material arrangement is improper so as to which noise preferably can not be eliminated,
There is provided a kind of with the improved muffler for being integrated in pipeline.
To achieve the above object, the invention provides a kind of pipe muffler for induction system of internal combustion engine, the noise reduction
Device includes：
Outer tube；
Inner tube, the inner side of the Inner pipes forms the flow channel for flow of fluid, and be sheathed in the outer tube and with institute
State and define between outer tube multiple holes are formed with a gap, said inner tube, the hole makes the stream of the gap and said inner tube
Dynamic passage connection；And
Sound-proof material, the Sound-proof material is located in the gap, is close to said inner tube and covers the multiple hole.
According to the above-mentioned pipe muffler of the present invention, sound-absorbing material is arranged on the outside of inner tube, it is to avoid traditional approach
Middle sound-absorbing material is located in inlet channel so as to easy contaminated problem；Multiple holes are set on Inner pipes, on the one hand can be played
The effect of noise elimination frequency band is widened, on the other hand causes the inner tube that is partially exposed at for the Sound-proof material only respective apertures for being close to inner tube to enter
In gas passage, the contact of Sound-proof material and admission line intermediate fuel oil drop is reduced, so as to reduce pollution, it is ensured that soundproof effect.
According to the design experiences of inventor, if 25% Sound-proof material is by fuel oil pollution, it will noise elimination function is produced non-
Normal detrimental effect.It is preferred that the area shared by all holes of said inner tube is preferably smaller than the gross area of inner tubal wall
25%.
Preferably, the diameter in the hole can be less than 5mm.It is further preferred that the hole can be arranged in several columns, it is adjacent
The distance between row connect can be more than 10mm.
Preferably, the Sound-proof material can be full of the gap, its for example can be inner tube insertion outer tube in after again
It is filled into the gap, to facilitate the manufacture of pipe muffler and strengthen noise elimination function.
Preferably, the outer tube is arc, and said inner tube, which has, to be suitable to insert the outer tube along the shape of the outer tube
In corresponding arc.
Preferably, Sound-proof material is wrapped on the outer wall of said inner tube, so that the pipe muffler has more flexible system
Step is made, for example, is inserted the prefabricated inner tube for being wound with Sound-proof material thereon in the outer tube.It is further preferred that being wound with sound insulation
The prefabricated inner tube of cotton is inserted after the outer tube, has space between the Sound-proof material and the outer tube.
In addition, another aspect of the present invention provides a kind of induction system of internal combustion engine, the induction system of internal combustion engine is included above
Described muffler.
Brief description of the drawings
Fig. 1 is the schematic diagram of the muffler according to one embodiment of the present of invention；
Fig. 2 is the decomposing schematic representation of the muffler according to one embodiment of the present of invention, and wherein Sound-proof material is wrapped in Inner pipes
On, and in Inner pipes insertion outer tube.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.Many details are elaborated in the following description to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
There is provided a kind of pipe muffler for induction system of internal combustion engine for embodiments in accordance with the present invention.As illustrated,
The muffler includes outer tube 21 and the Inner pipes 31 being sheathed in outer tube, and the inner side of the Inner pipes 31 forms flow channel, and the flowing is led to
Road allows air-flow to pass therethrough in internal combustion engine.
Multiple holes 51 are formed on Inner pipes 31.Hole 51 makes the gap between outer tube 21 and Inner pipes 31 and the flowing of said inner tube 31
Passage is connected.According to a preferred embodiment of the present invention, as shown in figure 1, the gross area in all holes 51 Inner pipes 31 wall
Upper shared area ratio is less than 25%.In a further advantageous embodiment, the diameter in hole 51 is preferably less than 5mm.The hole 51 can
To be configured on Inner pipes 31 arrange into several columns, and the distance between adjacent column is more than 10mm.
Inner pipes 31 are glued with Sound-proof material 41 on the outer surface towards outer tube 21, and Sound-proof material 41 covers the hole 51, so that
So that Sound-proof material part only corresponding with hole 51 is in the flow channel of Inner pipes 31, so, it is to avoid Sound-proof material 41 is flowed
Fluid (fuel droplets particularly condensed) through flow channel, pollutes in large area, the long period of Sound-proof material 41 is kept
Good erasure effect.In a preferred embodiment, Sound-proof material 41 can be previously wound around on the Inner pipes 31.Further
Preferably, after the inner tube 31 for being wound with Sound-proof material 41 is inserted in outer tube 21, formed between Sound-proof material 41 and the outer tube 21
Space.Alternatively it is possible to after Inner pipes 31 are inserted in outer tube 21, Sound-proof material 41 is filled into the gap and filled
The full gap.
In one embodiment of the invention, as shown in Fig. 2 outer tube 21 is arc, Inner pipes 31 have relative with outer tube 21
The arcuate shape answered, so that suitable in the shape of outer tube 21 insertion outer tube 21.Although it should be noted that the present embodiment is adopted
With the setting that outer tube 21 and Inner pipes 31 are arc, but the setting not limited to this of the pipe muffler of the present invention, according to reality
Need, outer tube 21 and Inner pipes 31 may be variously-shaped, as long as Inner pipes 31 are placed in or are partially disposed in or are integrated in outer tube 21 i.e.
Can.
In addition, according to described above and accompanying drawing illustrated embodiment, be illustrated using Sound-proof material as sound-absorbing material, it is real
On border, the present invention can realize the material of sound-absorbing effect with any, for example, sponge, realizes sound insulation function, as long as according to material
The corresponding adjusting hole of sound absorption qualities quantity, diameter and distribution, the area in hole changed on Inner pipes occupies inner tube wall area
Ratio.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of pipe muffler, it is used for induction system of internal combustion engine, and the muffler includes：
Outer tube；
Inner tube, the inner side of said inner tube forms the flow channel for flow of fluid, and be sheathed in the outer tube and with it is described outer
Defined between pipe and multiple holes are formed with a gap, said inner tube, the hole leads to the flowing of the gap and said inner tube
Road is connected；And
Sound-proof material, the Sound-proof material is located in the gap, is close to said inner tube and covers the multiple hole.
2. pipe muffler according to claim 1, it is characterised in that the area shared by all holes of said inner tube is less than
The 25% of the gross area of inner tubal wall.
3. pipe muffler according to claim 1, it is characterised in that the diameter in the hole is less than 5mm.
4. pipe muffler according to claim 3, it is characterised in that the hole is arranged in several columns, adjacent row it
Between distance be more than 10mm.
5. pipe muffler according to claim 1, it is characterised in that the Sound-proof material is full of the gap.
6. pipe muffler according to claim 1, it is characterised in that the outer tube is arc, said inner tube has suitable
In the corresponding arc inserted along the shape of the outer tube in the outer tube.
7. the pipe muffler according to claim 1 or 6, it is characterised in that the Sound-proof material is wrapped in said inner tube.
8. pipe muffler according to claim 7, it is characterised in that there is sky between the Sound-proof material and the outer tube
Gap.
9. a kind of induction system of internal combustion engine, it includes the pipe muffler any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621371366.0U CN206503658U (en) | 2016-12-14 | 2016-12-14 | Pipe muffler and the induction system of internal combustion engine including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621371366.0U CN206503658U (en) | 2016-12-14 | 2016-12-14 | Pipe muffler and the induction system of internal combustion engine including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206503658U true CN206503658U (en) | 2017-09-19 |
Family
ID=59843898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621371366.0U Active CN206503658U (en) | 2016-12-14 | 2016-12-14 | Pipe muffler and the induction system of internal combustion engine including it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206503658U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042962A (en) * | 2019-12-11 | 2020-04-21 | 吉利汽车研究院（宁波）有限公司 | Air inlet silencer of engine |
| CN112081694A (en) * | 2019-06-14 | 2020-12-15 | 曼胡默尔滤清器（上海）有限公司 | Composite silencer of air inlet system |
-
2016
- 2016-12-14 CN CN201621371366.0U patent/CN206503658U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081694A (en) * | 2019-06-14 | 2020-12-15 | 曼胡默尔滤清器（上海）有限公司 | Composite silencer of air inlet system |
| CN111042962A (en) * | 2019-12-11 | 2020-04-21 | 吉利汽车研究院（宁波）有限公司 | Air inlet silencer of engine |
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| GR01 | Patent grant |