CN108825330A - Muffler - Google Patents
Muffler Download PDFInfo
- Publication number
- CN108825330A CN108825330A CN201810502269.8A CN201810502269A CN108825330A CN 108825330 A CN108825330 A CN 108825330A CN 201810502269 A CN201810502269 A CN 201810502269A CN 108825330 A CN108825330 A CN 108825330A
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- China
- Prior art keywords
- chamber
- hole
- shell
- muffler
- intermediate tube
- 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.)
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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
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
-
- 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
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
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- 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 muffler, including shell, equipped with mutually independent and in the horizontal direction in first chamber, second chamber and third chamber side by side in shell；It is connected in the front end of shell in horizontal air inlet pipe, the rear end of the air inlet pipe extend back through first chamber and second chamber and with third chamber, it is connected in the rear end of shell in horizontal exhaust pipe, the front end of the exhaust pipe extends through forward third chamber and second chamber and is connected to first chamber；Be additionally provided with intermediate tube in shell, the intermediate tube through second chamber and both ends respectively with first chamber and third chamber；And what is be corresponding in turn on the peripheral wall corresponding with second chamber on air inlet pipe, intermediate tube and exhaust pipe is provided with first through hole, the second through-hole and third through-hole；The present invention have can preferably reduce automobile exhaust noise, the advantages of capable of preferably eliminating the noise to low-frequency noise, can reduce automobile engine to exhaust resistance.
Description
Technical field
The invention belongs to automobile technical fields, in particular to muffler.
Background technique
It is increasingly strict to the limitation of automobile noise in the environmental legislation of countries in the world with the raising to environmental requirement.For
The pollution of Noise Generated by Running Vehicles is reduced, standard restricting vehicle noise is formulated in various countries and major automobile factory commercial city, and Hyundai Motor is made an uproar
Sound characteristics are the one of the important signs that for measuring car mass.Automobile noise not only causes the pollution of ambient enviroment, influences people's
Life and work, and interior noise is one of the principal element for influencing vehicle comfort.In order to improve the comfort of vehicle,
Major motor corporation of the world is all using the control to internal car noise as important research direction, especially car, internal car noise shape
Condition is even more to measure one of the standard of car class.
Automotive muffler is the common building block of automobile, advantageously reduces the noise pollution in vehicle traveling process.Vapour
Vehicle silencer is the air exhaust muffler device that Hyundai Motor is widely used, and is the simple and effective means for reducing engine noise.
The quality of the practical acoustic attenuation performance of silencer is directly related to noise size when vehicle work, the noise level concerning vehicle.
Chinese patent（CN202338377U）A kind of three pipe labyrinth-type main silencer for automobile, including a shell are disclosed, it is built-in
Structure is composed of in order lumen one, lumen two, lumen three, frame-type tank, and lumen diameter is 40mm, and the lumen one is flat
Row is placed in top, is connected with shell external admission pipe, lumen two is placed in the underface of lumen one in parallel, is connected with frame-type tank, simultaneously
The outer escape pipe of shell is connected, the lumen three is placed in shell bottom in parallel.The present invention is by accounting for pipe surface to noise reduction aperture
Long-pending ratio is improved, using from the side into, it is intermediate go out structure, the Mid Frequency noise for eliminating 100-500Hz is played very
Big effect, it is simple for structure, it is low in cost, it can be suitble to use in the muffler of different automobile types.
But above-mentioned automotive muffler has the following problems, 1, deficiency of eliminating the noise to low-frequency noise；2, to high-frequency noises
It is more by frequency；3 have that exhaust resistance is big.
Therefore, how can provide one kind can preferably reduce automobile exhaust noise, can preferably make an uproar to low frequency
Sound is eliminated the noise, and can reduce the muffler of automobile engine to exhaust resistance, become those skilled in the art have it is to be solved
The technical issues of.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problem to be solved by the present invention is to：How to provide one kind can be more
Good reduction automobile exhaust noise, can preferably eliminate the noise to low-frequency noise, can reduce automobile engine to exhaust resistance
Muffler.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions：In specific descriptions, it is with left side
Before, right side is described after being.
Muffler, including shell, in shell equipped with it is mutually independent and in the horizontal direction in side by side first chamber,
Second chamber and third chamber；It is connected in the front end of shell in horizontal air inlet pipe, the rear end of the air inlet pipe extends back
Through first chamber and second chamber and with third chamber, be connected in the rear end of shell in horizontal exhaust pipe, it is described
The front end of exhaust pipe extends through forward third chamber and second chamber and is connected to first chamber；Centre is additionally provided in shell
Pipe, the intermediate tube through second chamber and both ends respectively with first chamber and third chamber；And in air inlet pipe, centre
What is be corresponding in turn on peripheral wall corresponding with second chamber on pipe and exhaust pipe is provided with first through hole, the second through-hole and third
Through-hole；It is characterized in that, being provided with fourth hole on peripheral wall corresponding with first chamber in air inlet pipe.The air inlet pipe and
The diameter of exhaust pipe is equal and is greater than the diameter of intermediate tube.
In the technical program, air-flow enters from air inlet pipe, and when flowing through first chamber, first chamber is common with fourth hole
Effect, fraction can be flowed into first chamber by fourth hole, enough reduce the back pressure of engine whole gas extraction system, together
When, it can be to low frequency（200HZ is hereinafter, mainly for engine idle conditions）Noise carries out eliminated noise.To reach preferably right
Low-frequency noise is eliminated the noise.Later, air-flow is flowed into third chamber from air inlet pipe rear end again, and intermediate tube is by third chamber and first
Chamber, and air-flow is oriented to first chamber, the air-flow in first chamber is excluded through exhaust pipe again；The intermediate tube energy of setting
Enough increase the process of air-flow；Also, air-flow, which can occur once to turn in third chamber, forms harmonic wave, can also effectively reduce
Noise.In the whole process, air-flow is in air inlet pipe, intermediate tube and exhaust pipe and when flowing through second chamber, first through hole,
Portion gas can be imported second chamber by two through-holes and third through-hole, and second chamber carries out mid-frequency noise
It eliminates the noise.
As optimization, the shell includes the cylindrical outer casing of ellipsoidal cross section, the front-end and back-end of cylindrical outer casing according to
It is secondary to be respectively connected with drive end bearing bracket and rear end cap, first partition is arranged at intervals with along its own axis direction in the inside of cylindrical outer casing
With second partition and by the inner part of cylindrical outer casing every in the first chamber, second chamber and third chamber；And first every
What is be corresponding in turn on plate and second partition is provided with multiple first air passing holes and multiple second air passing holes.
In this way, the structure of entire shell is more simple, facilitate processing and manufacturing.First air passing hole and the second air passing hole can
By first chamber, second chamber and third chamber, air-flow is enabled to pass through the first air passing hole and the second air passing hole stream
Enter adjacent chamber, this also can reduce the back pressure of exhaust system, reduce exhaust resistance, while because of the mutation of airflow channel, energy
Enough achieve the effect that reduce noise.
As optimization, the sum of the area of section of first air passing hole on perpendicular is less than or equal to the second air passing hole
The sum of area of section on perpendicular.
In this way, air-flow flows into first chamber at first because air-flow can flow to first chamber by fourth hole；So that first
The sum of area of section of air passing hole is less than or equal to the sum of second air passing hole area of section, can preferably balance three chambers it
Between pressure, reduce the back pressure of whole gas extraction system.And the first air passing hole and the second air passing hole can respectively for low frequency and
Mid-frequency noise is eliminated the noise, preferably to eliminate the noise to low frequency and mid-frequency noise.
As optimization, fifth hole is provided on the peripheral wall corresponding with third chamber on the exhaust pipe.
In this way, air-flow, in exhaust pipe and when flowing through third chamber, air-flow can arrive again at third by fifth hole
Chamber at this time can eliminate high-frequency noise.
As optimization, region corresponding to the fifth hole on exhaust pipe is arranged Sound damping cover cylinder, the noise elimination sleeve by
Acoustical cotton material is made.
In this way, the noise elimination sleeve of setting can preferably eliminate high-frequency noise, and it can reduce noise generation
Shake.
As optimization, the diameter of first through hole and third through-hole is 3mm；Second through-hole, fourth hole and fifth hole
Diameter be 4mm；First through hole and the quantity of third through-hole are 224；The quantity of second through-hole is 100；Four-way
The quantity in hole is 10；The quantity of fifth hole is 84.
In such manner, it is possible to make the amount for the gas that first through hole and third through-hole exclude in second chamber equal, first through hole
After the gas being discharged with the gas being discharged in third through-hole and the second through-hole generates convection current, flow velocity reduces, and can reach reduction and make an uproar
The effect of sound.
As optimization, acoustical cotton is filled with inside second chamber.
In this way, acoustical cotton can carry out noise elimination drop to the gas being discharged in first through hole, third through-hole and the second through-hole
It makes an uproar, and the flow velocity of air-flow is enabled to reduce.
As optimization, the front end of the exhaust pipe is designed in toroidal.
In this way, having the function of collecting to the air-flow in first chamber, more convenient air-flow enters from the front end of exhaust pipe.
As optimization, the rear end of the intermediate tube is designed in toroidal.
In this way, having the function of collecting to the indoor air-flow of third chamber, more convenient air-flow enters from the rear end of intermediate tube.
As optimization, the diameter of the air inlet pipe and exhaust pipe is equal and is greater than the diameter of intermediate tube.
In this way, during air-flow flows to first chamber through intermediate tube from third chamber, since the diameter of air inlet pipe is greater than
The diameter of intermediate tube, the i.e. sectional area of airflow channel mutate and become smaller, and when air-flow being enabled to flow through intermediate tube, flow velocity subtracts
Small, air pressure reduces, and achievees the purpose that reduce noise.Finally, when air-flow flows through exhaust pipe exclusion from first chamber, due to exhaust pipe
Diameter be equal to the diameter of air inlet pipe and can be conducive to air-flow more at this point, the sectional area that flows to of air-flow mutates and becomes larger
It is smoothly discharged, can reduce car engine and play exhaust resistance.
As optimization, intermediate tube front end surface is located on the outside of exhaust pipe front end surface；Intermediate tube rear end face is located at air inlet
On the inside of pipe rear end face.
In such manner, it is possible to make the process of entire airflow channel longer, can reach reduces gas flow rate, reduces noise
Purpose.
Detailed description of the invention
Fig. 1 is structural schematic diagram in the specific embodiment of the invention.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is the main view of the first partition in Fig. 1.
Fig. 4 is the main view of the second partition in Fig. 1.
Specific embodiment
Below with reference to example attached drawing, the present invention is described in further detail.
When specific implementation：As shown in Figures 1 to 4, muffler, including shell 1, be equipped in shell it is mutually independent and
In the horizontal direction in first chamber 2, second chamber 3 and third chamber 4 side by side；The front end of shell be connected in it is horizontal into
Tracheae 5, the rear end of the air inlet pipe extend back through first chamber and second chamber and with third chamber, in shell
Rear end is connected in horizontal exhaust pipe 6, the front end of the exhaust pipe extend through forward third chamber and second chamber and with
First chamber connection；Be additionally provided with intermediate tube 7 in shell, the intermediate tube through second chamber and both ends respectively and first chamber
With third chamber；And it is successively right on the peripheral wall corresponding with second chamber on air inlet pipe, intermediate tube and exhaust pipe
That answers is provided with first through hole 8, the second through-hole 9 and third through-hole 10；On peripheral wall corresponding with first chamber in air inlet pipe
It is provided with fourth hole 11.
In present embodiment, air-flow enters from air inlet pipe, and when flowing through first chamber, first chamber and fourth hole
Collective effect, fraction can be flowed into first chamber by fourth hole, enough reduce the back of engine whole gas extraction system
Pressure, meanwhile, it is capable to low frequency（200HZ is hereinafter, mainly for engine idle conditions）Noise carries out eliminated noise.To reach more preferable
Eliminate the noise to low-frequency noise.Later, air-flow is flowed into third chamber from air inlet pipe rear end again, intermediate tube by third chamber with
First chamber connection, and air-flow is oriented to first chamber, the air-flow in first chamber is excluded through exhaust pipe again；The centre of setting
Pipe is capable of increasing the process of air-flow；Also, air-flow, which can occur once to turn in third chamber, forms harmonic wave, also can be effective
Reduce noise.In the whole process, for air-flow in air inlet pipe, intermediate tube and exhaust pipe and when flowing through second chamber, first is logical
Portion gas can be imported second chamber by hole, the second through-hole and third through-hole, and second chamber makes an uproar to intermediate frequency
Sound is eliminated the noise.
In this specific embodiment, the shell 1 includes the cylindrical outer casing 12 of ellipsoidal cross section, before cylindrical outer casing
End and rear end are successively respectively connected with drive end bearing bracket 13 and rear end cap 14, in the inside of cylindrical outer casing along its own axis direction interval
It is provided with first partition 15 and second partition 16 and by the inner part of cylindrical outer casing every in the first chamber, second chamber and the
Three chambers；And multiple first air passing holes 17 and multiple second that are provided with being corresponding in turn in first partition and second partition cross gas
Hole 18.
In this way, the structure of entire shell is more simple, facilitate processing and manufacturing.First air passing hole and the second air passing hole can
By first chamber, second chamber and third chamber, air-flow is enabled to pass through the first air passing hole and the second air passing hole stream
Enter adjacent chamber, this also can reduce the back pressure of exhaust system, reduce exhaust resistance, while because of the mutation of airflow channel, energy
Enough achieve the effect that reduce noise.
In this specific embodiment, area of section the sum of of first air passing hole 17 on perpendicular is less than or equal to
Area of section the sum of of second air passing hole 18 on perpendicular.
In this way, air-flow flows into first chamber at first because air-flow can flow to first chamber by fourth hole；So that first
The sum of area of section of air passing hole is less than or equal to the sum of second air passing hole area of section, can preferably balance three chambers it
Between pressure, reduce the back pressure of whole gas extraction system.And the first air passing hole and the second air passing hole can respectively for low frequency and
Mid-frequency noise is eliminated the noise, preferably to eliminate the noise to low frequency and mid-frequency noise.
In this specific embodiment, fifth hole is provided on the peripheral wall corresponding with third chamber on the exhaust pipe
19。
In this way, air-flow, in exhaust pipe and when flowing through third chamber, air-flow can arrive again at third by fifth hole
Chamber at this time can eliminate high-frequency noise.
In this specific embodiment, region corresponding to the fifth hole on exhaust pipe is arranged Sound damping cover cylinder 20, described
Noise elimination sleeve is made by acoustical cotton material.
In this way, the noise elimination sleeve of setting can preferably eliminate high-frequency noise, and it can reduce noise generation
Shake.
In this specific embodiment, the diameter of first through hole and third through-hole is 3mm；Second through-hole, fourth hole and
The diameter of fifth hole is 4mm；First through hole and the quantity of third through-hole are 224；The quantity of second through-hole is 100
It is a；The quantity of fourth hole is 10；The quantity of fifth hole is 84.
In such manner, it is possible to make the amount for the gas that first through hole and third through-hole exclude in second chamber equal, first through hole
After the gas being discharged with the gas being discharged in third through-hole and the second through-hole generates convection current, flow velocity reduces, and can reach reduction and make an uproar
The effect of sound.
In this specific embodiment, acoustical cotton is filled with inside second chamber.
In this way, acoustical cotton can carry out noise elimination drop to the gas being discharged in first through hole, third through-hole and the second through-hole
It makes an uproar, and the flow velocity of air-flow is enabled to reduce.
In this specific embodiment, the front end of the exhaust pipe is designed in toroidal.
In this way, having the function of collecting to the air-flow in first chamber, more convenient air-flow enters from the front end of exhaust pipe.
In this specific embodiment, the rear end of the intermediate tube is designed in toroidal.
In this way, having the function of collecting to the indoor air-flow of third chamber, more convenient air-flow enters from the rear end of intermediate tube.
In this specific embodiment, the air inlet pipe 5 is equal with the diameter of exhaust pipe 6 and is greater than the diameter of intermediate tube 7.
In this way, during air-flow flows to first chamber through intermediate tube from third chamber, since the diameter of air inlet pipe is greater than
The diameter of intermediate tube, the i.e. sectional area of airflow channel mutate and become smaller, and when air-flow being enabled to flow through intermediate tube, flow velocity subtracts
Small, air pressure reduces, and achievees the purpose that reduce noise.Finally, when air-flow flows through exhaust pipe exclusion from first chamber, due to exhaust pipe
Diameter be equal to the diameter of air inlet pipe and can be conducive to air-flow more at this point, the sectional area that flows to of air-flow mutates and becomes larger
It is smoothly discharged, can reduce car engine and play exhaust resistance.
In this specific embodiment, intermediate tube front end surface is located on the outside of exhaust pipe front end surface；Intermediate tube rear end face
On the inside of air inlet pipe rear end face.
In such manner, it is possible to make the process of entire airflow channel longer, can reach reduces gas flow rate, reduces noise
Purpose.
In this specific embodiment, the front end of the intermediate tube is inclined on perpendicular is set up, in horizontal plane
The angle degree of axially coincident and with intermediate tube the axis of the upper air inlet pipe and exhaust pipe is 30 ° to 45 °.
In this way, while entire second chamber and constant shell size, so that the length of intermediate tube is maximum, so that
The process of gas increases, and to reach reduction gas flow rate, achievees the purpose that better noise reduction.
In this specific embodiment, the diameter of first air passing hole is 3mm；The diameter of second air passing hole is 4mm；And the
The quantity of one air passing hole and the second air passing hole is 100.
In this way, the first air passing hole, the second air passing hole, first through hole, the second through-hole, third through-hole, fourth hole and
The sum of sectional area of five through-holes has better corresponding relationship, enables to the air pressure of entire enclosure interior more balanced, subtracts
The back pressure of few whole system.
In this specific embodiment, the intermediate tube includes that the entirety being set in second chamber is in the interlude of serpentine,
And it is connected between the first horizontal segment and the second horizontal segment at section both ends；And first horizontal segment and the second horizontal segment are corresponding in turn to
Be connected to first chamber and second chamber.
In such manner, it is possible to increase the length of intermediate tube, so that air-flow is longer the time required to passing through from intermediate tube, and gas
Stream is turned in intermediate tube, can reduce the speed of air-flow, well preferably to reduce noise.
Claims (10)
1. muffler, including shell（1）, equipped with mutually independent and in the horizontal direction in first chamber side by side in shell
（2）, second chamber（3）With third chamber（4）；It is connected in the front end of shell in horizontal air inlet pipe（5）, the air inlet pipe
Rear end extend back through first chamber and second chamber and with third chamber, be connected in the rear end of shell in horizontal
Exhaust pipe（6）, the front end of the exhaust pipe extends through forward third chamber and second chamber and is connected to first chamber；In shell
It is additionally provided with intermediate tube in vivo（7）, the intermediate tube through second chamber and both ends respectively with first chamber and third chamber；
And be corresponding in turn on the peripheral wall corresponding with second chamber on air inlet pipe, intermediate tube and exhaust pipe to be provided with first logical
Hole（8）, the second through-hole（9）And third through-hole（10）；It is characterized in that, on peripheral wall corresponding with first chamber in air inlet pipe
It is provided with fourth hole（11）.
2. muffler as described in claim 1, which is characterized in that the shell（1）Cylinder including ellipsoidal cross section
Shape shell（12）, drive end bearing bracket is successively respectively connected in the front-end and back-end of cylindrical outer casing（13）And rear end cap（14）, in tubular
The inside of shell is arranged at intervals with first partition along its own axis direction（15）And second partition（16）And by cylindrical outer casing
Inner part is every in the first chamber, second chamber and third chamber；And be corresponding in turn in first partition and second partition
It is provided with multiple first air passing holes（17）With multiple second air passing holes（18）.
3. muffler as described in claim 1, which is characterized in that first air passing hole（17）On perpendicular
The sum of area of section is less than or equal to the second air passing hole（18）The sum of area of section on perpendicular.
4. muffler as described in claim 1, which is characterized in that corresponding with third chamber on the exhaust pipe
Fifth hole is provided on peripheral wall（19）.
5. muffler as claimed in claim 4, which is characterized in that region corresponding to the fifth hole on exhaust pipe
It is arranged noise elimination sleeve（20）, the noise elimination sleeve is made by acoustical cotton material.
6. muffler as claimed in claim 4, which is characterized in that the diameter of first through hole and third through-hole is 3mm；The
The diameter of two through-holes, fourth hole and fifth hole is 4mm；
First through hole and the quantity of third through-hole are 224；The quantity of second through-hole is 100；The quantity of fourth hole is
10；The quantity of fifth hole is 84.
7. muffler as claimed in claim 6, which is characterized in that be filled with acoustical cotton inside second chamber.
8. muffler as described in claim 1, which is characterized in that designed in toroidal the front end of the exhaust pipe；
It is designed in toroidal the rear end of the intermediate tube.
9. muffler as described in claim 1, which is characterized in that the air inlet pipe（5）And exhaust pipe（6）Diameter phase
Deng and be greater than intermediate tube（7）Diameter.
10. muffler as described in claim 1, which is characterized in that intermediate tube front end surface is located at exhaust pipe front end end
On the outside of face；Intermediate tube rear end face is located on the inside of air inlet pipe rear end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502269.8A CN108825330A (en) | 2018-05-23 | 2018-05-23 | Muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502269.8A CN108825330A (en) | 2018-05-23 | 2018-05-23 | Muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825330A true CN108825330A (en) | 2018-11-16 |
Family
ID=64148508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810502269.8A Pending CN108825330A (en) | 2018-05-23 | 2018-05-23 | Muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825330A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320531A (en) * | 2020-09-30 | 2022-04-12 | 重庆隆鑫机车有限公司 | Exhaust silencer and all-terrain vehicle |
| CN114718697A (en) * | 2021-01-05 | 2022-07-08 | 广州汽车集团股份有限公司 | Vehicle exhaust pipe valve control method, device, system and equipment |
| US20220250704A1 (en) * | 2019-10-28 | 2022-08-11 | Zhejiang Cfmoto Poer Co., Ltd. | Straddle-Type Vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116417A (en) * | 1997-06-18 | 1999-01-12 | Nissan Motor Co Ltd | Exhaust muffler for automobile |
| CN202081937U (en) * | 2011-05-05 | 2011-12-21 | 北汽福田汽车股份有限公司 | Muffler for vehicle |
| CN202108561U (en) * | 2011-06-07 | 2012-01-11 | 无锡红湖消声器有限公司 | Exhaust muffler for automobile |
| CN202596839U (en) * | 2012-05-21 | 2012-12-12 | 柳州利和排气控制系统有限公司 | Automobile silencer |
| CN202946216U (en) * | 2012-12-17 | 2013-05-22 | 重庆海特汽车排气系统有限公司 | Dual-mode muffler for automobile |
| CN204163808U (en) * | 2014-10-24 | 2015-02-18 | 吉林艾瑞环保技术有限公司 | Backpressure muffler falls in multi-cavity combined type |
| CN205663488U (en) * | 2016-05-24 | 2016-10-26 | 吉林艾瑞环保技术有限公司 | Porous shunting muffling device |
| CN107191245A (en) * | 2017-07-07 | 2017-09-22 | 爱驰威汽车零部件（盐城）有限公司 | A kind of cleaning type automotive muffler |
| CN208347861U (en) * | 2018-05-23 | 2019-01-08 | 力帆实业(集团)股份有限公司 | A kind of muffler |
-
2018
- 2018-05-23 CN CN201810502269.8A patent/CN108825330A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116417A (en) * | 1997-06-18 | 1999-01-12 | Nissan Motor Co Ltd | Exhaust muffler for automobile |
| CN202081937U (en) * | 2011-05-05 | 2011-12-21 | 北汽福田汽车股份有限公司 | Muffler for vehicle |
| CN202108561U (en) * | 2011-06-07 | 2012-01-11 | 无锡红湖消声器有限公司 | Exhaust muffler for automobile |
| CN202596839U (en) * | 2012-05-21 | 2012-12-12 | 柳州利和排气控制系统有限公司 | Automobile silencer |
| CN202946216U (en) * | 2012-12-17 | 2013-05-22 | 重庆海特汽车排气系统有限公司 | Dual-mode muffler for automobile |
| CN204163808U (en) * | 2014-10-24 | 2015-02-18 | 吉林艾瑞环保技术有限公司 | Backpressure muffler falls in multi-cavity combined type |
| CN205663488U (en) * | 2016-05-24 | 2016-10-26 | 吉林艾瑞环保技术有限公司 | Porous shunting muffling device |
| CN107191245A (en) * | 2017-07-07 | 2017-09-22 | 爱驰威汽车零部件（盐城）有限公司 | A kind of cleaning type automotive muffler |
| CN208347861U (en) * | 2018-05-23 | 2019-01-08 | 力帆实业(集团)股份有限公司 | A kind of muffler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220250704A1 (en) * | 2019-10-28 | 2022-08-11 | Zhejiang Cfmoto Poer Co., Ltd. | Straddle-Type Vehicle |
| CN114320531A (en) * | 2020-09-30 | 2022-04-12 | 重庆隆鑫机车有限公司 | Exhaust silencer and all-terrain vehicle |
| CN114718697A (en) * | 2021-01-05 | 2022-07-08 | 广州汽车集团股份有限公司 | Vehicle exhaust pipe valve control method, device, system and equipment |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20181116 |