CN111197518A - Amortization exhaust system and car based on passive tone tuning valve - Google Patents
Amortization exhaust system and car based on passive tone tuning valve Download PDFInfo
- Publication number
- CN111197518A CN111197518A CN202010104590.8A CN202010104590A CN111197518A CN 111197518 A CN111197518 A CN 111197518A CN 202010104590 A CN202010104590 A CN 202010104590A CN 111197518 A CN111197518 A CN 111197518A
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- Prior art keywords
- air inlet
- silencing
- pipe
- inlet pipe
- air outlet
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Classifications
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/02—Exhaust or silencing apparatus characterised by constructional features having two or more separate silencers in series
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- 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
- F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
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- 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
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/007—Apparatus used as intake or exhaust silencer
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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 a silencing and exhausting system based on a passive tone tuning valve and an automobile, relates to the technical field of silencers, and has a good exhaust silencing effect. The system includes a front muffler and a rear muffler; the rear silencer comprises a rear silencing shell, a rear air inlet pipe, a rear air outlet pipe and a passive tuning valve, the passive tuning valve is arranged on the rear air inlet pipe, the air inlet end of the rear air inlet pipe is communicated with the air outlet end of the front silencer, and the air outlet end of the rear air inlet pipe is communicated with the air inlet end of the rear air outlet pipe in a non-contact mode. The automobile is applied with the system provided by the scheme.
Description
Technical Field
The invention relates to the technical field of silencers, in particular to a silencing exhaust system based on a passive tone tuning valve and an automobile.
Background
At present, a series of bent pipelines and silencing cotton are arranged in a silencer with a limited volume so as to achieve the purpose of eliminating noise. The disadvantages of such silencers are: the noise reduction effect is limited, the structure is complex, and the manufacturing cost is high.
If a better silencing effect is desired, only a silencer with a larger volume can be adopted, so how to realize the better silencing effect on the premise of not increasing the volume of the silencer is a technical problem to be solved in the industry.
Disclosure of Invention
The invention aims to provide a silencing and exhausting system based on a passive tuning valve and an automobile, which have a good exhaust silencing effect.
In order to achieve the above object, an aspect of the present invention provides a muffling exhaust system based on a passive tuning valve, comprising a front muffler and a rear muffler;
the rear silencer comprises a rear silencing shell, a rear air inlet pipe, a rear air outlet pipe and a passive tone tuning valve, the passive tone tuning valve is arranged on the rear air inlet pipe, the air inlet end of the rear air inlet pipe is communicated with the air outlet end of the front silencer, and the air outlet end of the rear air inlet pipe is communicated with the air inlet end of the rear air outlet pipe in a non-contact mode.
Preferably, the front silencer comprises a front silencing shell, a front air inlet pipe and a front air outlet pipe, the front air inlet pipe and the front air outlet pipe are respectively fixed with the front silencing shell through clamping plates, and the front air inlet pipe and the front air outlet pipe are communicated in a non-contact mode.
Preferably, at least two clamping plates are arranged in the front silencing shell, the air inlet end of the front air inlet pipe is fixed through a bottom plate at one end of the front silencing shell, the air outlet end of the front air outlet pipe is fixed through a bottom plate at the other end of the front silencing shell, one clamping plate is used for fixing the air outlet end of the front air inlet pipe, the other clamping plate is used for fixing the air inlet end of the front air outlet pipe, an airflow cavity is formed between the two clamping plates, and the air outlet end of the front air inlet pipe and the air inlet end of the front air outlet pipe are respectively communicated with the airflow cavity.
Furthermore, a plurality of sound holes are formed in the front air inlet pipe and the front air outlet pipe, a front silencing area is formed by the space between the sound holes and the front silencing shell, and silencing cotton is arranged in the front silencing area.
Preferably, the passive tuning valve comprises a tuning part arranged in the rear air inlet pipe and an adjusting part arranged outside the rear air inlet pipe, the tuning part is forced to change the self angle under the action of the airflow impact force, and the adjusting part is used for applying an action force opposite to the airflow impact force to the tuning part so as to tend to keep the self angle of the tuning part.
Preferably, the tuning part comprises a rotating shaft and an adjusting valve plate fixed on the rotating shaft, the adjusting valve plate changes the angle of the adjusting valve plate under the action of air flow impact to adjust the air flow passing amount, and the rotating shaft is fixed with the pipe body of the rear air inlet pipe.
Preferably, the surface area of the adjusting valve plate is larger than the sectional area of the rear air inlet pipe, and metal steel wool playing a role in buffering is welded at the edge of the adjusting valve plate.
Further, the adjusting part comprises a spring and a fixed column, the fixed column is fixed with the rear air inlet pipe, one end of the spring is fixed with the fixed column, and the other end of the spring is fixed with the rotating shaft.
Preferably, the rear air outlet pipe is composed of two identical sub-pipes, the sub-pipes are fixed with the rear silencing shell through clamping plates, a plurality of sound outlet holes are formed in the pipe body of each sub-pipe, a rear silencing area is formed between the sound outlet holes and the rear silencing shell, and silencing cotton is arranged in the rear silencing area.
Compared with the prior art, the silencing and exhausting system based on the passive tuning valve has the following beneficial effects:
the invention provides a silencing and exhausting system based on a passive tuning valve, which comprises a front silencer and a rear silencer which are mutually communicated, wherein the rear silencer consists of a rear silencing shell, a rear air inlet pipe, a rear air outlet pipe and the passive tuning valve, the rear air inlet pipe and the rear air outlet pipe are both arranged in the rear silencing shell, the passive tuning valve is arranged on the rear air inlet pipe, a front air inlet pipe of the front silencer is directly communicated with an exhaust port of an engine, the front air outlet pipe of the front silencer is directly communicated with the rear air inlet pipe of the rear silencer, and the rear air inlet pipe in the rear silencer is communicated with the rear air outlet pipe in a non-contact mode.
Therefore, the front silencer can carry out primary filtering on the exhaust noise of the engine, the rear air inlet pipe provided with the passive tuning valve can carry out secondary filtering on the exhaust noise, the rear air outlet pipe and the rear air inlet pipe in the rear silencer can carry out tertiary filtering on the exhaust noise of the transmitter, and finally, most of the exhaust noise of the engine can be filtered through the tertiary filtering.
Another aspect of the invention provides a vehicle, which applies the silencing exhaust system based on the passive tuning valve mentioned in the above technical scheme.
Compared with the prior art, the beneficial effects of the automobile provided by the invention are the same as those of the passive tuning valve-based silencing and exhausting system provided by the technical scheme, and are not repeated herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a passive tone tuning valve based muffling exhaust system in an embodiment;
FIG. 2 is a block diagram of a pre-silencer in an embodiment;
FIG. 3 is a structural view of a rear muffler in the embodiment;
FIG. 4 is a block diagram of a passive tone tuning valve in an embodiment;
fig. 5 is simulation data of noise detection of a passive tuning valve based muffling exhaust system.
Reference numerals:
1-front silencer, 2-rear silencer;
11-front air inlet pipe, 12-front air outlet pipe;
13-front silencing shell, 14-sound outlet;
15-silencing cotton, 16-clamping plate;
21-rear air inlet pipe, 22-rear air outlet pipe;
23-passive tuning valve, 221-sub-pipe;
231-adjusting valve plate, 232-rotating shaft;
233-metal steel wool, 234-spring;
235-fixed column.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 and 4, the present embodiment provides a silencing exhaust system based on a passive tuning valve, which includes a front silencer 1 and a rear silencer 2; the rear silencer 2 comprises a rear silencing shell, a rear air inlet pipe 21, a rear air outlet pipe 22 and a passive tuning valve 23, wherein the passive tuning valve 23 is arranged on the rear air inlet pipe 21, the air inlet end of the rear air inlet pipe 21 is communicated with the air outlet end of the front silencer 1, and the air outlet end of the rear air inlet pipe 21 is communicated with the air inlet end of the rear air outlet pipe 22 in a non-contact mode.
In the amortization exhaust system based on passive tuning valve that this embodiment provided, including preceding muffler 1 and back muffler 2 that communicate each other, wherein, back muffler 2 comprises back amortization casing, back intake pipe 21, back outlet duct 22 and passive tuning valve 23, back intake pipe 21 all establishes in back amortization casing with back outlet duct 22, and passive tuning valve 23 is installed on back intake pipe 21, through the preceding intake pipe 11 direct with the engine of preceding muffler 1 intercommunication, preceding outlet duct 12 of preceding muffler 1 and the back intake pipe 21 of back muffler 2 direct intercommunication, back intake pipe 21 and the back outlet duct 22 in back muffler 2 adopt contactless mode to communicate.
It can be seen that in the present embodiment, the front muffler 1 can perform primary filtering on the exhaust noise of the engine, the rear intake pipe 21 equipped with the passive tuning valve 23 can perform secondary filtering on the exhaust noise passing through, the rear outlet pipe 22 and the rear intake pipe 21 in the rear muffler 2 can perform tertiary filtering on the exhaust noise of the transmitter, and finally, most of the exhaust noise of the engine can be filtered through the above-mentioned tertiary filtering.
Referring to fig. 2, the front silencer 1 in the above embodiment specifically includes a front silencing case 13, a front air inlet pipe 11 and a front air outlet pipe 12, the front air inlet pipe 11 and the front air outlet pipe 12 are respectively fixed to the front silencing case 13 by a clamping plate 16, and the front air inlet pipe 11 and the front air outlet pipe 12 are communicated in a non-contact manner.
As shown in fig. 2, the front silencing shell 13 is of a columnar structure, and is composed of two bottom plates and a column wall, the two bottom plates are respectively arranged at two ends of the column wall, a gas outlet is reserved on the bottom plates, at least two clamping plates 16 are arranged in the front silencing shell 13, the gas inlet end of the front gas inlet pipe 11 is fixed through one end bottom plate of the front silencing shell 13, the gas outlet end of the front gas outlet pipe 12 is fixed through the other end bottom plate of the front silencing shell 13, one clamping plate 16 is used for fixing the gas outlet end of the front gas inlet pipe 11, the other clamping plate 16 is used for fixing the gas inlet end of the front gas outlet pipe 12, an airflow cavity is formed between the two clamping plates 16, and the gas outlet end of the front gas inlet pipe 11 and the gas inlet end.
When the silencer is specifically implemented, the cross section of the clamping plate 16 is matched with the cavity of the front silencer shell 13, an outlet matched with an air pipe is reserved on the clamping plate 16, the air inlet end of the front silencer 11 is fixed through the air pipe outlet of the bottom plate, the air outlet end of the front silencer 11 is fixed through the clamping plate 16, a sealed area is formed between the bottom plate at one end and the clamping plate 16, the air inlet end of the front silencer 12 is fixed through the clamping plate 16, the air outlet end of the front silencer 12 is fixed through the air pipe outlet of the bottom plate, a sealed area is formed between the bottom plate at the other end and the clamping plate 16, the two sealed areas jointly form a front silencer area, an air flow cavity is formed between the two clamping plates 16 just right, the air outlet end of the front silencer 11 and the air inlet end of the front silencer 12 are communicated in a non-contact mode through the.
In order to further improve the noise reduction effect, as shown in fig. 2, a plurality of sound emitting holes 14 are formed in the tube bodies of the front air tube 11 and the front air tube 12 in the above embodiment, and the space between the plurality of sound emitting holes 14 and the front noise reduction housing 13 forms a front noise reduction area, in which noise reduction cotton 15 is disposed.
Referring to fig. 3, the passive tuning valve 23 in the above embodiment includes a tuning portion provided in the rear intake pipe 21 and an adjusting portion provided outside the rear intake pipe 21, the tuning portion being forced to change its angle by an impact force of the air flow, the adjusting portion being adapted to apply a force to the tuning portion opposite to the impact force of the air flow so as to tend to keep the tuning portion at its angle.
Wherein, tuning portion includes rotation axis 232 and fixes adjusting valve piece 231 on rotation axis 232, and adjusting valve piece 231 changes self angle under the air current impact effect in order to adjust the air current throughput, and rotation axis 232 is fixed with the body of back intake pipe 21. The adjusting portion includes a spring 234 and a fixing post 235, the fixing post 235 is fixed to the tube body of the rear intake duct 21, one end of the spring 234 is fixed to the fixing post 235, and the other end of the spring 234 is fixed to the rotary shaft 232.
In specific implementation, when the elastic force of the spring 234 is greater than the airflow impact force, the adjusting valve plate 231 and the tube wall of the rear air tube 21 are in a natural fit state, the air inlet duct at this time is relatively closed, the spring 234 drives the rotating shaft 232 to rotate as the airflow impact force is gradually increased until the elastic force is greater than the elastic force of the spring 234, the rotating shaft 232 drives the adjusting valve plate 231 to start to gradually separate from the tube wall of the rear air tube 21, that is, the angle of the adjusting valve plate 231 changes accordingly, and the corresponding airflow throughput increases accordingly.
In addition, the adjusting part is arranged outside the rear air inlet pipe 21, which is beneficial to saving the occupied space in the rear air inlet pipe 21, and the adjusting part consisting of the spring 234 and the fixed column 235 has the characteristics of simple structure and controllable cost.
Alternatively, the surface area of the adjusting valve plate 231 should be larger than the sectional area of the rear intake pipe 21 so as to adjust the throughput of the airflow, and the metal wire wool 233 welded at the edge of the adjusting valve plate 231 for buffering can reduce the noise of the airflow.
Preferably, the rear air outlet pipe 22 in the above embodiment is composed of two identical sub-pipes 221, the sub-pipes 221 are fixed to the rear silencing casing through the clamping plate 16, a plurality of sound outlet holes 14 are formed in the pipe body of the sub-pipes 221, a rear silencing area is formed by a space between the sound outlet holes 14 and the rear silencing casing, and silencing cotton 15 is arranged in the rear silencing area.
During specific implementation, back amortization casing is the columnar structure equally, constitute by two bottom plates and a column wall, be equipped with four cardboard 16 in the back amortization casing, wherein three cardboard 16 and two bottom plate parallel arrangement each other, distribute in the both sides of the end of giving vent to anger at back intake pipe 21, exemplarily, it sets up a bottom plate to give vent to anger one side that the end is close to sub-pipeline 221 and goes out sound hole 14 region at back intake pipe 21, it sets up two bottom plates to keep away from one side that sub-pipeline 221 goes out sound hole 14 region at the end of giving vent to anger at back intake pipe 21, it runs through the setting with above-mentioned three cardboard 16 to remain a bottom plate.
In order to ensure the silencing effect of the rear silencing area, in the four clamping plates 16, the bottom plate arranged at one side of the air outlet end of the rear air inlet pipe 21 close to the area of the sound outlet hole 14 of the sub-pipeline 221 is a through-hole-free bottom plate, the rest three bottom plates are all provided with through-hole bottom plates, the through-hole-free bottom plates can effectively avoid the backflow of noise, so that the rear silencing area forms a sealed area, and the through-hole bottom plates are used for aiming at enabling the air flow discharged from the air outlet end of the air inlet pipe to be capable of transmitting through the through holes to the air inlet end of the sub-pipeline.
Preferably, the air outlet end of the rear air inlet pipe 21 is arranged corresponding to the central position of the pipe body of the sub-pipe 221, and the air outlet end of the rear air inlet pipe 21 and the air inlet end of the sub-pipe 221 are isolated by the clamping plate 16, so that the flowing area of the air flow can be prolonged, and the air flow noise can be attenuated to the maximum extent.
In specific implementation, WAVE acoustic simulation is performed on the silencing and exhaust system based on the passive tuning valve in the embodiment, the model of the tested engine is 1.4TSI 110kW, and the simulation result is shown in fig. 5.
Example two
The embodiment provides an automobile, and the silencing exhaust system based on the passive tuning valve is applied to the automobile.
Compared with the prior art, the beneficial effects of the automobile provided by the embodiment are the same as the beneficial effects of the passive tuning valve-based silencing and exhausting system provided by the embodiment, and are not repeated herein.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A silencing exhaust system based on a passive tuning valve is characterized by comprising a front silencer and a rear silencer;
the rear silencer comprises a rear silencing shell, a rear air inlet pipe, a rear air outlet pipe and a passive tone tuning valve, the passive tone tuning valve is arranged on the rear air inlet pipe, the air inlet end of the rear air inlet pipe is communicated with the air outlet end of the front silencer, and the air outlet end of the rear air inlet pipe is communicated with the air inlet end of the rear air outlet pipe in a non-contact mode.
2. The passive tone tuning valve-based muffling and exhausting system according to claim 1, wherein the front muffler comprises a front muffling shell, a front air inlet pipe and a front air outlet pipe, the front air inlet pipe and the front air outlet pipe are respectively fixed to the front muffling shell through clamping plates, and the front air inlet pipe and the front air outlet pipe are communicated in a non-contact manner.
3. The silencing and exhausting system based on the passive tuning valve as recited in claim 2, wherein at least two clamping plates are disposed in the front silencing shell, the air inlet end of the front air inlet pipe is fixed by a bottom plate at one end of the front silencing shell, the air outlet end of the front air outlet pipe is fixed by a bottom plate at the other end of the front silencing shell, one clamping plate is used for fixing the air outlet end of the front air inlet pipe, the other clamping plate is used for fixing the air inlet end of the front air outlet pipe, an air flow cavity is formed between the two clamping plates, and the air outlet end of the front air inlet pipe and the air inlet end of the front air outlet pipe are respectively communicated with the air flow cavity.
4. The silencing and exhausting system based on the passive tuning valve as recited in claim 3, wherein a plurality of sound holes are formed in the body of the front air inlet pipe and the front air outlet pipe, and a space between the plurality of sound holes and the front silencing shell forms a front silencing area, and silencing cotton is arranged in the front silencing area.
5. The silencing and exhausting system based on the passive tuning valve as claimed in any one of claims 1 to 4, wherein the passive tuning valve comprises a tuning part arranged in the rear air inlet pipe and an adjusting part arranged outside the rear air inlet pipe, the tuning part is forced to change the self angle under the action of the air flow impact force, and the adjusting part is used for applying an action force opposite to the air flow impact force to the tuning part so as to tend to keep the self angle of the tuning part.
6. The silencing exhaust system based on the passive tuning valve as claimed in claim 5, wherein the tuning part comprises a rotating shaft and an adjusting valve plate fixed on the rotating shaft, the adjusting valve plate changes its angle under the action of air flow impact to adjust the air flow passing amount, and the rotating shaft is fixed with the tube body of the rear air inlet tube.
7. The silencing and exhausting system based on the passive tuning valve as claimed in claim 6, wherein the surface area of the adjusting valve plate is larger than the sectional area of the rear air inlet pipe, and metal steel wool with a buffering effect is welded at the edge of the adjusting valve plate.
8. The passive tuning valve based muffling and exhaust system according to claim 5, wherein the adjusting portion comprises a spring and a fixed column, the fixed column is fixed to the pipe body of the rear intake pipe, one end of the spring is fixed to the fixed column, and the other end of the spring is fixed to the rotating shaft.
9. The silencing exhaust system based on the passive tuning valve as claimed in claim 1, wherein the rear outlet pipe is composed of two identical sub-pipes, the sub-pipes are fixed to the rear silencing shell through a clamping plate, a plurality of sound outlet holes are formed in the pipe body of each sub-pipe, a rear silencing area is formed by the space between the sound outlet holes and the rear silencing shell, and silencing cotton is arranged in the rear silencing area.
10. A motor vehicle, characterized in that a silencing exhaust system based on a passive tuning valve according to any one of claims 1-9 is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104590.8A CN111197518A (en) | 2020-02-20 | 2020-02-20 | Amortization exhaust system and car based on passive tone tuning valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104590.8A CN111197518A (en) | 2020-02-20 | 2020-02-20 | Amortization exhaust system and car based on passive tone tuning valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111197518A true CN111197518A (en) | 2020-05-26 |
Family
ID=70744871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010104590.8A Withdrawn CN111197518A (en) | 2020-02-20 | 2020-02-20 | Amortization exhaust system and car based on passive tone tuning valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111197518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117328979A (en) * | 2023-11-07 | 2024-01-02 | 无锡威孚力达催化净化器有限责任公司 | Exhaust cold end structure suitable for pick-up motorcycle type |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201016303Y (en) * | 2007-01-23 | 2008-02-06 | 上海红湖消声器厂 | Automobile exhaust silencer |
| CN201486624U (en) * | 2009-08-03 | 2010-05-26 | 奇瑞汽车股份有限公司 | Exhaust gas silencer |
| CN103270262A (en) * | 2010-11-29 | 2013-08-28 | 田纳科汽车营运公司 | Snap-action valve for exhaust system |
| CN205714352U (en) * | 2016-04-28 | 2016-11-23 | 上汽通用汽车有限公司 | Tuning valve and tuning device |
| CN206617214U (en) * | 2017-01-22 | 2017-11-07 | 无锡红湖消声器有限公司 | A kind of exhaust silencer of pair of tail pipe |
| CN211648288U (en) * | 2020-02-20 | 2020-10-09 | 一汽-大众汽车有限公司 | Muffler exhaust system and automobile based on passive tuning valve |
-
2020
- 2020-02-20 CN CN202010104590.8A patent/CN111197518A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201016303Y (en) * | 2007-01-23 | 2008-02-06 | 上海红湖消声器厂 | Automobile exhaust silencer |
| CN201486624U (en) * | 2009-08-03 | 2010-05-26 | 奇瑞汽车股份有限公司 | Exhaust gas silencer |
| CN103270262A (en) * | 2010-11-29 | 2013-08-28 | 田纳科汽车营运公司 | Snap-action valve for exhaust system |
| CN205714352U (en) * | 2016-04-28 | 2016-11-23 | 上汽通用汽车有限公司 | Tuning valve and tuning device |
| CN206617214U (en) * | 2017-01-22 | 2017-11-07 | 无锡红湖消声器有限公司 | A kind of exhaust silencer of pair of tail pipe |
| CN211648288U (en) * | 2020-02-20 | 2020-10-09 | 一汽-大众汽车有限公司 | Muffler exhaust system and automobile based on passive tuning valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117328979A (en) * | 2023-11-07 | 2024-01-02 | 无锡威孚力达催化净化器有限责任公司 | Exhaust cold end structure suitable for pick-up motorcycle type |
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Application publication date: 20200526 |