CN108425719A - Muffler and automobile - Google Patents
Muffler and automobile Download PDFInfo
- Publication number
- CN108425719A CN108425719A CN201810474093.XA CN201810474093A CN108425719A CN 108425719 A CN108425719 A CN 108425719A CN 201810474093 A CN201810474093 A CN 201810474093A CN 108425719 A CN108425719 A CN 108425719A
- Authority
- CN
- China
- Prior art keywords
- tube section
- direct tube
- muffler
- hush pipe
- section
- 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
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 mufflers, including staving, silencing cotton and hush pipe；Staving both ends are respectively equipped with noise reduction end cap, and air inlet and gas outlet are respectively equipped on two noise reduction end caps；Silencing cotton is arranged in staving；Hush pipe is in silencing cotton；Hush pipe includes the first direct tube section being sequentially communicated, funnel section and the second direct tube section, and the diameter of the second direct tube section is less than the first direct tube section；The diameter of funnel section is gradually reduced by the first direct tube section to the second direct tube section；Hush pipe is two, and second direct tube section of the two is connected to form silencers channel；First direct tube section of one hush pipe is plugged in air inlet, and the first direct tube section of another hush pipe is plugged in gas outlet.In the muffler, the aperture of silencers channel first reduces to increase afterwards, allows airflow into after silencers channel first to compress and expand afterwards, has larger divergence ratio, strong to the noise dampening efficiency of low-frequency noise.Invention additionally discloses a kind of automobiles using above-mentioned muffler, have the effect of that low frequency noise is small.
Description
Technical field
The present invention relates to Mechanical Industry Technology field, more specifically to a kind of muffler, further relate in a kind of application
State the automobile of muffler.
Background technology
The muffler of automobile be hinder sound transmission and allow air-flow by, prevention the special of air flow power noise set
It is standby.
Referring to Fig. 1, existing mobile muffler includes staving and the noise elimination fiber 12 that is arranged at inner wall of barrel, staving
To be equipped be air inlet for side, the other side is equipped with gas outlet, and is set in staving there are two baffle 11.Muffler air inlet/outlet due to
It is influenced by vehicle gas exhaust piping arrangement, the diameter difference of diameter and ladle body is little, causes divergence ratio insufficient, low-frequency noise
Erasure effect unobvious.
In addition, double baffle designs of above-mentioned mobile muffler also affect the body of muffler internal cavity to a certain extent
Product causes noise reduction volume insufficient.
Furthermore above-mentioned noise reduction fiber uses filament, and fiber is susceptible under the comprehensive function of urea and steam
Hardened problem, aging speed is too fast, causes the noise dampening efficiency of high-frequency noises also to occur significantly deteriorating, durability is insufficient.
In conclusion how to provide a kind of muffler, to improve its erasure effect to low-frequency noise, and how to provide
A kind of automobile using above-mentioned muffler is those skilled in the art's urgent problem to be solved.
Invention content
In view of this, the present invention is provided to a kind of muffler, the aperture of silencers channel is in increased shape after first reducing
Shape is allowed airflow into after silencers channel first to compress and be expanded afterwards, has larger divergence ratio, can significantly increase disappearing for low-frequency noise
Sound ability.The present invention also provides a kind of automobiles, apply above-mentioned muffler, and low frequency noise is small.
To achieve the above object, the present invention provides the following technical solutions：
A kind of muffler, including：
The both ends of staving, the staving are respectively equipped with noise reduction end cap, and a noise reduction end cap is equipped with air inlet, another
A noise reduction end cap is equipped with gas outlet；
Silencing cotton, the silencing cotton are arranged in the staving；
Hush pipe, the hush pipe is in the silencing cotton；The hush pipe include the first direct tube section being sequentially communicated,
The diameter of funnel section and the second direct tube section, second direct tube section is less than first direct tube section；The diameter edge of the funnel section
The direction of first direct tube section to second direct tube section is gradually reduced；
Wherein, the hush pipe is two, and the second direct tube section of two hush pipes is interconnected and forms silencers channel；
First direct tube section of one hush pipe is plugged in the air inlet, and the first direct tube section of another hush pipe is plugged in
The gas outlet.
Preferably, in above-mentioned muffler, the first direct tube section, the funnel section and second direct tube section in the hush pipe
The axis of three is same straight line.
Preferably, in above-mentioned muffler, the axis of second direct tube section of two hush pipes overlaps.
Preferably, in above-mentioned muffler, the junction of the funnel section and second direct tube section is equipped with chamfering；The leakage
The junction of the section that struggles against and first direct tube section is equipped with chamfering.
Preferably, in above-mentioned muffler, the funnel section is equipped with multiple open-works.
Preferably, in above-mentioned muffler, chamber of the silencing cotton embedded in the staving and two noise reduction end cap compositions
In vivo.
Preferably, in above-mentioned muffler, the silencing cotton is an integral structure, and the surface of the silencing cotton is equipped with uniformly
The round and smooth protrusion of distribution.
A kind of automobile, including muffler, the muffler are the muffler described in any one of above-mentioned technical proposal.
The present invention provides a kind of muffler comprising staving, silencing cotton and hush pipe；The both ends of staving are respectively equipped with noise reduction
End cap, a noise reduction end cap are equipped with air inlet, another noise reduction end cap is equipped with gas outlet；Silencing cotton is arranged in staving；
Hush pipe is in silencing cotton；Hush pipe includes the first direct tube section being sequentially communicated, funnel section and the second direct tube section, the second straight tube
The diameter of section is less than the first direct tube section；The diameter of funnel section is gradually reduced along the direction of the first direct tube section to the second direct tube section；Its
In, hush pipe is two, and the second direct tube section of two hush pipes, which is interconnected to assemble, forms silencers channel；The first of one hush pipe
Direct tube section is plugged in air inlet, and the first direct tube section of another hush pipe is plugged in gas outlet.
In muffler provided by the invention, the second direct tube section of two hush pipes, which is interconnected, to be assembled, and silencers channel is formed,
Silencers channel include the funnel section of first hush pipe, two silencers channels the second direct tube section and another hush pipe
Funnel section, aperture first reduce and increase afterwards, allow airflow into after silencers channel first to compress and expand afterwards, have larger divergence ratio,
The noise dampening efficiency to low-frequency noise can be significantly increased.
Meanwhile in above-mentioned muffler, the first direct tube section aperture of two hush pipes is larger, is convenient for and vehicle complete vehicle exhaust pipe
It is combined docking, while exhaust back pressure being avoided excessively to increase, ensures the economy of internal combustion engine.
In addition, in compared with the prior art double baffle designs muffler, the internal volume of muffler provided by the invention
Greatly, it is ensured that noise reduction volume is sufficiently large.
The present invention provides a kind of automobile comprising muffler, muffler are above-mentioned muffler, with the small effect of low frequency noise
Fruit.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of muffler in the prior art；
Fig. 2 is the explosive view of muffler provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of muffler provided in an embodiment of the present invention；
Fig. 4 is the sectional view of muffler provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the round and smooth protrusion of silencing cotton provided in an embodiment of the present invention；
Wherein, in Fig. 2-Fig. 5：
Hush pipe 101；Noise reduction end cap 102；Staving 103；Silencing cotton 104；Round and smooth protrusion 141.
Specific implementation mode
The embodiment of the invention discloses a kind of muffler, the aperture of silencers channel makes in increased shape after first reducing
Air-flow enters after silencers channel first to compress to be expanded afterwards, is had larger divergence ratio, can be significantly increased the noise reduction energy of low-frequency noise
Power.The embodiment of the invention also discloses a kind of automobiles, apply above-mentioned muffler, and low frequency noise is small.
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 describes, 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.
Please refer to Fig. 2-Fig. 5, the embodiment of the present invention provides a kind of muffler comprising staving 103, silencing cotton 104 and disappear
Sound tube 101；The both ends of staving 103 are respectively equipped with noise reduction end cap 102, and a noise reduction end cap 102 is equipped with air inlet, another disappears
Sound end cap 102 is equipped with gas outlet；Silencing cotton 104 is arranged in staving 103；Hush pipe 101 is in silencing cotton 104；Noise reduction
Pipe 101 includes the first direct tube section, funnel section and the second direct tube section being sequentially communicated, and the diameter of the second direct tube section is less than the first straight tube
Section；The diameter of funnel section is gradually reduced along the direction of the first direct tube section to the second direct tube section；Wherein, hush pipe 101 be two, two
Second direct tube section of hush pipe 101, which is interconnected to assemble, forms silencers channel；First direct tube section of one hush pipe 101 is plugged in
First direct tube section of air inlet, another hush pipe 101 is plugged in gas outlet.
In muffler provided in an embodiment of the present invention, the second direct tube section of two hush pipes 101, which is interconnected, to be assembled, and is formed
Silencers channel, silencers channel include the funnel section of first hush pipe 101, two silencers channels the second direct tube section, Yi Jiling
The funnel section of one hush pipe 101, aperture first reduce and increase afterwards, allow airflow into after silencers channel first to compress and expand afterwards, have
There is larger divergence ratio, the noise dampening efficiency to low-frequency noise can be significantly increased.
Meanwhile in above-mentioned muffler, the first direct tube section aperture of two hush pipes 101 is larger, convenient for being arranged with vehicle complete vehicle
Tracheae is combined docking, while exhaust back pressure being avoided excessively to increase, and ensures the economy of internal combustion engine.
In addition, in compared with the prior art double baffle designs muffler, the internal volume of muffler provided by the invention
Greatly, it is ensured that noise reduction volume is sufficiently large.
Furthermore in above-mentioned muffler, two 101 assembling combinations of hush pipe form silencers channel, can reduce technique manufacture
Difficulty improves production efficiency.
In above-mentioned muffler, the first direct tube section, funnel section and the axis of the second direct tube section three of each hush pipe 101 are
Same straight line.Above-mentioned first direct tube section, funnel section and the second direct tube section three are an integral structure.
Specifically, the axis of the second direct tube section of above-mentioned two hush pipe 101 overlaps, it is ensured that air-flow is via the noise reduction
It is smooth when device, steady.
In each hush pipe 101, the junction of funnel section and the second direct tube section is equipped with chamfering, funnel section and the first direct tube section
Junction be also equipped with chamfering, both prevent stress concentration, reduce hush pipe 101 and the possibility of mechanical failure occurs, and can put down
Favorable current reduces gas flow resistance, avoids generating secondary noise.
In above-mentioned muffler, funnel section is equipped with multiple open-works, can enhance the absorbability to noise.
In muffler as above, silencing cotton 104 is in the cavity that staving 103 and two noise reduction end caps 102 form.Silencing cotton
104 are an integral structure, and the surface of silencing cotton 104 is equipped with equally distributed round and smooth protrusion 141.
In muffler provided in this embodiment, uniform round and smooth protrusion 141 is distributed in outside, can effectively improve silencing cotton
104 with the contact area of exhaust gas, to improve absorption of the muffler for medium-high frequency noise.In addition, silencing cotton 104 is staving
103 embedded structures, and be integral design, it can farthest avoid the aging of its noise dampening efficiency from weakening, service life
It is long.
The muffler has higher noise elimination value and wider frequency of noise elimination range, has within the scope of required frequency of noise elimination
Sufficiently large sound deadening capacity meets requirement of the vehicle to noise.
Muffler production cost provided in this embodiment is low, simple for process, is convenient for mass production.Furthermore the muffler
Volume compared with similar product smaller, harsher arrangement requirement can be met.Also, the mechanical strength of above-mentioned muffler
Height, endurance life are long.
The embodiment of the present invention also provides a kind of automobile comprising muffler, wherein muffler is what above-described embodiment provided
Muffler has the effect of that low frequency noise is small.Certainly, automobile provided in this embodiment is also provided with above-described embodiment related
Other effects of muffler, details are not described herein.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (8)
1. a kind of muffler, which is characterized in that including：
The both ends of staving, the staving are respectively equipped with noise reduction end cap, and a noise reduction end cap is equipped with air inlet, another institute
It states noise reduction end cap and is equipped with gas outlet；
Silencing cotton, the silencing cotton are arranged in the staving；
Hush pipe, the hush pipe is in the silencing cotton；The hush pipe includes the first direct tube section, the funnel being sequentially communicated
The diameter of section and the second direct tube section, second direct tube section is less than first direct tube section；The diameter of the funnel section is described in
The direction of first direct tube section to second direct tube section is gradually reduced；
Wherein, the hush pipe is two, and the second direct tube section of two hush pipes is interconnected and forms silencers channel；One
First direct tube section of the hush pipe is plugged in the air inlet, and the first direct tube section of another hush pipe is plugged in described
Gas outlet.
2. muffler according to claim 1, which is characterized in that the first direct tube section, the funnel section in the hush pipe
Axis with the second direct tube section three is same straight line.
3. muffler according to claim 1 or 2, which is characterized in that second direct tube section of two hush pipes
Axis overlap.
4. muffler according to claim 1, which is characterized in that the junction of the funnel section and second direct tube section
Equipped with chamfering；The junction of the funnel section and first direct tube section is equipped with chamfering.
5. muffler according to claim 1, which is characterized in that the funnel section is equipped with multiple open-works.
6. muffler according to claim 1, which is characterized in that the silencing cotton, which is embedded in described in the staving and two, to disappear
In the cavity of sound end cap composition.
7. muffler according to claim 1, which is characterized in that the silencing cotton is an integral structure, and the noise reduction
The surface of cotton is equipped with equally distributed round and smooth protrusion.
8. a kind of automobile, including muffler, which is characterized in that the muffler is that right wants disappearing described in power 1-7 any one
Sound device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474093.XA CN108425719A (en) | 2018-05-17 | 2018-05-17 | Muffler and automobile |
| PCT/CN2018/110782 WO2019218589A1 (en) | 2018-05-17 | 2018-10-18 | Muffler and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474093.XA CN108425719A (en) | 2018-05-17 | 2018-05-17 | Muffler and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108425719A true CN108425719A (en) | 2018-08-21 |
Family
ID=63163452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810474093.XA Pending CN108425719A (en) | 2018-05-17 | 2018-05-17 | Muffler and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425719A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513703A (en) * | 2018-11-29 | 2019-03-26 | 汪培杰 | A kind of cleaning device for peroxyacetic acid disinfectant liquid dispensing container |
| CN110085206A (en) * | 2019-03-27 | 2019-08-02 | 合肥雅美娜环境医疗设备有限公司 | A kind of oxygenerator muffler |
| WO2019218589A1 (en) * | 2018-05-17 | 2019-11-21 | 潍柴动力股份有限公司 | Muffler and automobile |
| CN110985164A (en) * | 2019-11-19 | 2020-04-10 | 华侨大学 | Vibration-damping heat-insulating silencer |
| CN111042896A (en) * | 2019-12-18 | 2020-04-21 | 魏志帅 | Tuning silencer for automobile exhaust pipe |
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| CN102575538A (en) * | 2009-10-16 | 2012-07-11 | Ti汽车工程中心（海德堡）有限公司 | Sound absorber for a pipe-shaped, cavity-forming body |
| CN102635424A (en) * | 2012-04-11 | 2012-08-15 | 宁波市鄞州吉士汽配有限公司 | Ultra silent silencer |
| CN104358607A (en) * | 2014-12-03 | 2015-02-18 | 江苏江永新材料科技有限公司 | Automobile tail gas exhaust pipe |
| CN204877605U (en) * | 2015-07-24 | 2015-12-16 | 邓厚才 | In line amortization of back pressure type drum |
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| CN206201601U (en) * | 2016-11-23 | 2017-05-31 | 东莞市海纳森非织造科技有限公司 | A kind of acoustical cotton with concaveconvex structure based on spun lacing complex technique |
| CN106979051A (en) * | 2017-05-10 | 2017-07-25 | 安徽捷运矿山机械有限公司 | A kind of diesel oil mining machinery exhaust pipe silencer |
| CN206668361U (en) * | 2017-05-08 | 2017-11-24 | 浙江工业职业技术学院 | A kind of noise reducing type automobile exhaust pipe |
| CN208441906U (en) * | 2018-05-17 | 2019-01-29 | 潍柴动力股份有限公司 | Muffler and automobile |
-
2018
- 2018-05-17 CN CN201810474093.XA patent/CN108425719A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575538A (en) * | 2009-10-16 | 2012-07-11 | Ti汽车工程中心（海德堡）有限公司 | Sound absorber for a pipe-shaped, cavity-forming body |
| CN102635424A (en) * | 2012-04-11 | 2012-08-15 | 宁波市鄞州吉士汽配有限公司 | Ultra silent silencer |
| CN104358607A (en) * | 2014-12-03 | 2015-02-18 | 江苏江永新材料科技有限公司 | Automobile tail gas exhaust pipe |
| CN204877605U (en) * | 2015-07-24 | 2015-12-16 | 邓厚才 | In line amortization of back pressure type drum |
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| CN208441906U (en) * | 2018-05-17 | 2019-01-29 | 潍柴动力股份有限公司 | Muffler and automobile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218589A1 (en) * | 2018-05-17 | 2019-11-21 | 潍柴动力股份有限公司 | Muffler and automobile |
| CN109513703A (en) * | 2018-11-29 | 2019-03-26 | 汪培杰 | A kind of cleaning device for peroxyacetic acid disinfectant liquid dispensing container |
| CN110085206A (en) * | 2019-03-27 | 2019-08-02 | 合肥雅美娜环境医疗设备有限公司 | A kind of oxygenerator muffler |
| CN110985164A (en) * | 2019-11-19 | 2020-04-10 | 华侨大学 | Vibration-damping heat-insulating silencer |
| CN111042896A (en) * | 2019-12-18 | 2020-04-21 | 魏志帅 | Tuning silencer for automobile exhaust pipe |
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Application publication date: 20180821 |
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| RJ01 | Rejection of invention patent application after publication |