CN108952914A - Exhaust system for motorcycle - Google Patents
Exhaust system for motorcycle Download PDFInfo
- Publication number
- CN108952914A CN108952914A CN201810651463.2A CN201810651463A CN108952914A CN 108952914 A CN108952914 A CN 108952914A CN 201810651463 A CN201810651463 A CN 201810651463A CN 108952914 A CN108952914 A CN 108952914A
- Authority
- CN
- China
- Prior art keywords
- chamber
- exhaust system
- silencer
- motorcycle according
- exhaust
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/04—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for motorcycles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of exhaust system for motorcycle, including exhaust pipe and silencer, the exhaust pipe includes the air inlet section, catalytic conversion stage and introduction segment being sequentially communicated, at least a set of ternary catalyzing unit is provided in the catalytic conversion stage, the ternary catalyzing unit includes the first catalytic reaction zone being arranged successively from airintake direction towards outgassing direction, cavity zone and the second catalytic reaction zone, and the introduction segment is inserted into silencer.Using exhaust system for motorcycle provided by the invention, structure novel, it is easy to accomplish, ternary catalyzing unit is located in the catalytic conversion stage outside silencer, improves tail gas catalyzed efficiency, reduces costs and exhaust sound, improves sound quality.
Description
Technical field
The invention belongs to motorcycle part technical fields, and in particular to a kind of exhaust system for motorcycle.
Background technique
Motorcycle has the characteristics that small in size, speed is fast, mobility strong, good cross-country ability, easy operation, is widely used in and patrols
It patrols, the fields such as passenger and freight transportation.With being gradually increased for social and economic level and environmental requirement, increasingly to the discharge standard of motorcycle
Strictly, while to improve the comfort of motorcycle, people are to the exhaust noise size of motorcycle and the requirement of sound quality
It is higher and higher.
Exhaust system for motorcycle is generally mainly made of exhaust pipe, silencer and catalyst combination, is used for cleaning of off-gas
With decrease exhaust sound.The catalyst combination of existing exhaust system for motorcycle is arranged inside silencer, and such design is difficult
To guarantee that the reaction temperature of catalyst, the purification efficiency of tail gas are low, it is therefore desirable to use more catalyst, increase into
This.Meanwhile the structure of existing silencer is simple, exhaust gas flow path is shorter, is unfavorable for weakening exhaust sound, and sound quality is poor.
Solving problem above becomes the task of top priority.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of exhaust system for motorcycle, improves tail gas catalyzed efficiency, drop
Low cost and exhaust sound, improve sound quality.
To achieve the above object, technical solution of the present invention is as follows:
A kind of exhaust system for motorcycle, including exhaust pipe and silencer, are characterized by: the exhaust pipe includes successively connecting
Logical air inlet section, catalytic conversion stage and introduction segment is provided at least a set of ternary catalyzing unit in the catalytic conversion stage, this three
First catalyst converter includes that the first catalytic reaction zone being arranged successively from airintake direction towards outgassing direction, cavity zone and the second catalysis are anti-
Area is answered, the introduction segment is inserted into silencer.
Using the above structure, ternary catalyzing unit is located in the catalytic conversion stage outside silencer, compared with the existing technology (
Inside silencer), it ensure that the reaction high temperature of catalyst, be more advantageous to the catalysis reaction of tail gas；Wherein the first catalytic reaction zone
And second have cavity zone between catalytic reaction zone, this hollow design can use the catalysis reaction of the first catalytic reaction zone
The high fever of generation, tail gas reach cavity zone after passing through the first catalytic reaction zone, enter back into the second catalytic reaction zone after diffusion mixing,
High temperature needed for ensure that the catalysis reaction of the second catalytic reaction zone, to strengthen the catalysis reaction to tail gas；Meanwhile cavity
The design in area is also beneficial to the decrease to exhaust sound, the bypass structure of ternary catalyzing unit compared with the existing technology, and catalysis is made
With more efficient, the content of noble metal is also reduced, to reduce costs, improves exhaust sound quality.
As preferred: the inner part of the silencer is every the first chamber, second chamber, the 4th chamber and being arranged successively
Three chambers, the first chamber, second chamber, third chamber and the 4th chamber are sequentially communicated, and the introduction segment passes through the first chamber
It is inserted into second chamber behind room, and is connected to first chamber and second chamber, is provided with tail pipe on the silencer, which wears
It is inserted into the 4th chamber after crossing third chamber, the 4th chamber is made to be in communication with the outside.Using the above structure, exhaust gas flow path is longer,
Exhaust sound can preferably be weakened, improve exhaust sound quality.
As preferred: the inside of the silencer passes through three pieces of partitions being arranged successively and is divided into first chamber, the second chamber
Room, the 4th chamber and third chamber.It is using the above structure, simple and reliable, it is easy to accomplish, it is low in cost.
As preferred: being provided at least one air guiding through hole on the partition between first chamber and second chamber.
Using the above structure, by, again to heavy in section abrupt change of cross-section twice, can effectively weaken exhaust sound from big section to small bore
Sound.
As preferred: the third chamber and the 4th chamber are connected to by least one tubulature, each tubulature
It is arranged on the partition between third chamber and the 4th chamber.Using the above structure, by from big section to small bore again to
Heavy in section abrupt change of cross-section twice and plug in duct noise elimination structure, can more efficiently weaken exhaust sound.
As preferred: the second chamber is connected to third chamber by least one long duct, and the two of each root long conduit
The partition positioned at the 4th chamber two sides is crossed at end respectively.Using the above structure, by from big section to small bore again to big section
The abrupt change of cross-section twice and plug in duct noise elimination structure, while extending air stream transportation path, weaken the effect of exhaust sound
Fruit is more preferable, improves exhaust sound quality.
As preferred: the partition between second chamber and the 4th chamber is the arc knot protruded towards second chamber
Structure has reinforcing rib on the partition.Using the above structure, the cambered design of the partition can play the role of water conservancy diversion to air-flow,
Meanwhile when ensure that gas shock by reinforcing rib partition intensity.
As preferred: being coated with silencing cotton in the middle part of the tail pipe, set on the tail pipe being located on the inside of silencing cotton
It is equipped with equally distributed bloop, the silencing cotton is located in third chamber.Using the above structure, reduce tail gas and air
Contact surface reduces burning again and generates the probability for blowing out abnormal sound, to reduce exhaust noise.
As preferred: the introduction segment insertion silencer one end plug is installed, the introduction segment close to plug one
It is evenly distributed with venthole on the outer wall of end, a portion venthole is connected to first chamber, another part venthole and second
Chamber.Using the above structure, by the venthole on introduction segment, make air-flow that the mutation in section have occurred, reduce air-flow
Pressure and flow velocity expand in first chamber and second chamber.
As preferred: oxygen sensor is set in the air inlet section, the lambda sensor by install nut be fixed on into
In gas section.Using the above structure, lambda sensor detects the oxygen content in tail gas, feeds back onto ECU integrated manipulator, ECU is again
Further control the intake and exhaust amount of engine.
Compared with prior art, the beneficial effects of the present invention are:
Using exhaust system for motorcycle provided by the invention, structure novel, it is easy to accomplish, ternary catalyzing unit is located at silencer
In external catalytic conversion stage, tail gas catalyzed efficiency is improved, is reduced costs and exhaust sound, sound quality is improved.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of silencer；
Fig. 3 is the cross-sectional view in Fig. 2 at A-A；
Fig. 4 is the cross-sectional view in Fig. 2 at B-B；
Fig. 5 is the cross-sectional view in Fig. 2 at C-C；
Fig. 6 is the structural schematic diagram of plug.
Specific embodiment
The invention will be further described with attached drawing with reference to embodiments.
As shown in Figure 1, a kind of exhaust system for motorcycle, including exhaust pipe 100 and silencer 200, the exhaust pipe 100
Inlet end is connected with engine 300, and outlet side is inserted into silencer 200.
Referring to Figure 1, the exhaust pipe 100 includes air inlet section 110, catalytic conversion stage 120 and the introduction segment being sequentially communicated
130, wherein the inlet end of the air inlet section 110 is connected with engine 300, and the introduction segment 130 is inserted into silencer 200, institute
Catalytic conversion stage 120 is stated to be fixed on engine 300 by mounting bracket 170, it is simple and reliable for structure, NVH performance is improved, is subtracted
Weak exhaust noise.
Referring to Figure 1, at least a set of ternary catalyzing unit 140 is provided in the catalytic conversion stage 120, every set ternary is urged
Changing device 140 includes the first catalytic reaction zone 141 being arranged successively from airintake direction towards outgassing direction, cavity zone 143 and second
Catalytic reaction zone 142, this hollow design can use the high fever that the catalysis reaction of the first catalytic reaction zone 141 generates, tail gas
By reaching cavity zone 143 behind the first catalytic reaction zone 141, the second catalytic reaction zone 142 is entered back into after diffusion mixing, ensure that
High temperature needed for the catalysis reaction of second catalytic reaction zone 142, to strengthen the catalysis reaction to tail gas；Meanwhile cavity zone
143 design is also beneficial to the decrease to exhaust sound, the bypass structure of ternary catalyzing unit compared with the existing technology, and catalysis is made
With more efficient, the content of noble metal is also reduced, to reduce costs, improves exhaust sound quality.It is pointed out that ternary
Three-way catalyst, three-way catalyst are filled in the first catalytic reaction zone 141 and the second catalytic reaction zone 142 of catalyst converter 140
Content be 30g/ft3, wherein platinum, palladium, rhodium ratio be 1:5:4.
Referring to Figure 1 and Fig. 2, the inner part of the silencer 200 is every first chamber 210, the second chamber being arranged successively
220, the 4th chamber 240 and third chamber 230, the first chamber 210, second chamber 220, third chamber 230 and the 4th chamber
Room 240 is sequentially communicated, the introduction segment 130 pass through first chamber 210 after be inserted into second chamber 220, and with first chamber 210 and
Second chamber 220 is connected to, and is provided with tail pipe 250 on the silencer 200, which is inserted into after passing through third chamber 230
4th chamber 240 makes the 4th chamber 240 be in communication with the outside, i.e., one end of tail pipe 250 is connected to the 4th chamber 240, the other end with
External world's connection.
Specifically, referring to 2~Fig. 5, the inside of the silencer 200 passes through three pieces of partitions 260 being arranged successively and divides
It is divided into first chamber 210, second chamber 220, the 4th chamber 240 and third chamber 230.
Fig. 2 and Fig. 4 are referred to, the partition 260 between second chamber 220 and the 4th chamber 240 is towards second
The arcuate structure that chamber 220 protrudes has reinforcing rib 261 on the partition 260.It, can be right by the way that partition 260 is designed as arc
Air-flow plays the role of water conservancy diversion, meanwhile, the intensity of partition 260 when ensure that gas shock by reinforcing rib 261.
Refer to Fig. 2 and Fig. 5, be provided on the partition 260 between first chamber 210 and second chamber 220 to
A few air guiding through hole 270.Each air guiding through hole 270 is distributed in around introduction segment 130, by from big section to small bore again
To heavy in section abrupt change of cross-section twice, it can effectively weaken exhaust sound.
Fig. 2~Fig. 4, the third chamber 230 and the 4th chamber 240 is referred to be connected to by least one tubulature 280,
Each tubulature 280 is arranged on the partition 260 between third chamber 230 and the 4th chamber 240.The second chamber
220 are connected to third chamber 230 by least one long duct 290, and the both ends of each root long conduit 290 are crossed respectively is located at the 4th
The partition 260 of 240 two sides of chamber.Each tubulature 280 and long duct 290 are distributed in around tail pipe 250, by from big section
It arrives heavy in section abrupt change of cross-section twice and plug in duct noise elimination structure again to small bore, while extending air stream transportation road
Diameter, the effect for weakening exhaust sound is more preferable, improves exhaust sound quality.
Fig. 2 is referred to, is coated with silencing cotton 252 at the middle part of the tail pipe 250, in the institute for being located at 252 inside of silencing cotton
It states and is provided with equally distributed bloop 251 on tail pipe 250, the silencing cotton 252 is located in third chamber 230.Reduce tail
The contact surface of gas and air reduces burning again and generates the probability for blowing out abnormal sound, to reduce exhaust noise.
Fig. 2 and Fig. 6 are referred to, plug 132 is installed in one end of the introduction segment 130 insertion silencer 200, the importing
Section 130 is evenly distributed with venthole 131, a portion venthole 131 and first chamber on one end outer wall of plug 132
210 connections, another part venthole 131 are connected to second chamber 220.By the venthole 131 on introduction segment 130, make air-flow
The mutation that section has occurred, reduces stream pressure and flow velocity, expands in first chamber 210 and second chamber 220.Further
Ground is provided with tail gas leadout hole 132a on the plug 132, effectively increases air inlet by the design of tail gas leadout hole 132a
Flow.
Referring to Figure 1, oxygen sensor 150 is set in the air inlet section 110, which passes through installation spiral shell
Mother 160 is fixed in air inlet section 110.Lambda sensor visits 150 oxygen content into tail gas, feeds back onto ECU integrated manipulator,
ECU further controls the intake and exhaust amount of engine.
The course of work of the invention is as follows:
The tail gas that engine 300 is discharged enters catalytic conversion stage 120 through air inlet section 110, by three in catalytic conversion stage 120
First catalyst converter 140 purifies, to reach discharge standard.Purified tail gas enters the first chamber of silencer 200 through introduction segment 130
210 and second chamber 220, the tail gas in first chamber 210 flows to second chamber 220, second chamber 220 through air guiding through hole 270
Interior tail gas flows to third chamber 230 through long duct 290, and the tail gas in third chamber 230 flows to the 4th chamber through tubulature 280
240, the tail gas in the 4th chamber 240 is discharged through tail pipe 250.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make multiple similar tables
Show, such transformation is fallen within the scope of protection of the present invention.
Claims (10)
1. a kind of exhaust system for motorcycle, including exhaust pipe (100) and silencer (200), it is characterised in that: the exhaust pipe
It (100) include the air inlet section (110), catalytic conversion stage (120) and introduction segment (130) being sequentially communicated, in the catalytic conversion stage
(120) it is provided at least a set of ternary catalyzing unit (140) in, which includes from airintake direction towards outlet
The first catalytic reaction zone (141) that direction is arranged successively, cavity zone (143) and the second catalytic reaction zone (142), the introduction segment
(130) it is inserted into silencer (200).
2. exhaust system for motorcycle according to claim 1, it is characterised in that: the inner part of the silencer (200) every
First chamber (210), second chamber (220), the 4th chamber (240) and the third chamber (230) being arranged successively, first chamber
Room (210), second chamber (220), third chamber (230) and the 4th chamber (240) are sequentially communicated, and the introduction segment (130) is worn
It crosses first chamber (210) and is inserted into second chamber (220) afterwards, and be connected to first chamber (210) and second chamber (220), in institute
It states and is provided with tail pipe (250) on silencer (200), which passes through third chamber (230) and be inserted into the 4th chamber afterwards
(240), the 4th chamber (240) is made to be in communication with the outside.
3. exhaust system for motorcycle according to claim 2, it is characterised in that: the inside of the silencer (200) passes through
Three pieces of partitions (260) being arranged successively are divided into first chamber (210), second chamber (220), the 4th chamber (240) and third
Chamber (230).
4. exhaust system for motorcycle according to claim 3, it is characterised in that: in first chamber (210) and second chamber
(220) at least one air guiding through hole (270) is provided on the partition (260) between.
5. exhaust system for motorcycle according to claim 3, it is characterised in that: the third chamber (230) and the 4th chamber
Room (240) by least one tubulature (280) be connected to, each tubulature (280) be arranged at third chamber (230) and
On partition (260) between 4th chamber (240).
6. exhaust system for motorcycle according to claim 3, it is characterised in that: the second chamber (220) and third chamber
Room (230) is connected to by least one long duct (290), and the both ends of each root long conduit (290) are crossed respectively is located at the 4th chamber
(240) partition (260) of two sides.
7. exhaust system for motorcycle according to claim 3, it is characterised in that: be located at second chamber (220) and the 4th chamber
The partition (260) between room (240) is the arcuate structure protruded towards second chamber (220), has on the partition (260) and adds
Strengthening tendons (261).
8. exhaust system for motorcycle according to claim 2, it is characterised in that: coated at the middle part of the tail pipe (250)
There are silencing cotton (252), is provided with equally distributed bloop on the tail pipe (250) being located on the inside of silencing cotton (252)
(251), the silencing cotton (252) is located in third chamber (230).
9. exhaust system for motorcycle according to claim 2, it is characterised in that: be inserted into and eliminate the noise in the introduction segment (130)
One end of device (200) is equipped with plug (132), which is evenly distributed on one end outer wall of plug (132)
Venthole (131), a portion venthole (131) are connected to first chamber (210), another part venthole (131) and the
Two chambers (220) connection.
10. exhaust system for motorcycle according to claim 1, it is characterised in that: be provided on the air inlet section (110)
Lambda sensor (150), the lambda sensor (150) are fixed on air inlet section (110) by installing nut (160).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651463.2A CN108952914A (en) | 2018-06-22 | 2018-06-22 | Exhaust system for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651463.2A CN108952914A (en) | 2018-06-22 | 2018-06-22 | Exhaust system for motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108952914A true CN108952914A (en) | 2018-12-07 |
Family
ID=64491669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810651463.2A Pending CN108952914A (en) | 2018-06-22 | 2018-06-22 | Exhaust system for motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108952914A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412208Y (en) * | 2009-06-09 | 2010-02-24 | 郑邑明 | Muffler |
| CN101737121A (en) * | 2009-12-21 | 2010-06-16 | 重庆隆鑫机车有限公司 | Motorcycle sound eliminator |
| CN202441450U (en) * | 2012-02-08 | 2012-09-19 | 河北华强科技开发有限公司 | Muffler |
| CN204200309U (en) * | 2014-11-07 | 2015-03-11 | 重庆鼎工机电有限公司 | Baffler |
| CN204877594U (en) * | 2015-06-16 | 2015-12-16 | 徐工集团工程机械股份有限公司科技分公司 | Compound silencer of expansion resonance |
| CN105569772A (en) * | 2016-02-18 | 2016-05-11 | 力帆实业(集团)股份有限公司 | Silencer of exhaust system of motorcycle |
| CN106285883A (en) * | 2016-08-31 | 2017-01-04 | 芜湖恒耀汽车零部件有限公司 | Noise reduction automobile exhaust pipe |
| CN206299438U (en) * | 2016-12-15 | 2017-07-04 | 重庆泽创机电有限公司 | Exhaust silencer with lambda sensor |
| CN107701264A (en) * | 2017-11-25 | 2018-02-16 | 华东交通大学 | A kind of integral exhaust purifying muffler for being used to improve sound quality |
| CN107965363A (en) * | 2016-10-18 | 2018-04-27 | 刘荣 | Double catalyst noise eliminator of motorcycle |
| CN208564712U (en) * | 2018-06-22 | 2019-03-01 | 力帆实业(集团)股份有限公司 | Motorcycle engine tail gas exhaust system |
-
2018
- 2018-06-22 CN CN201810651463.2A patent/CN108952914A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412208Y (en) * | 2009-06-09 | 2010-02-24 | 郑邑明 | Muffler |
| CN101737121A (en) * | 2009-12-21 | 2010-06-16 | 重庆隆鑫机车有限公司 | Motorcycle sound eliminator |
| CN202441450U (en) * | 2012-02-08 | 2012-09-19 | 河北华强科技开发有限公司 | Muffler |
| CN204200309U (en) * | 2014-11-07 | 2015-03-11 | 重庆鼎工机电有限公司 | Baffler |
| CN204877594U (en) * | 2015-06-16 | 2015-12-16 | 徐工集团工程机械股份有限公司科技分公司 | Compound silencer of expansion resonance |
| CN105569772A (en) * | 2016-02-18 | 2016-05-11 | 力帆实业(集团)股份有限公司 | Silencer of exhaust system of motorcycle |
| CN106285883A (en) * | 2016-08-31 | 2017-01-04 | 芜湖恒耀汽车零部件有限公司 | Noise reduction automobile exhaust pipe |
| CN107965363A (en) * | 2016-10-18 | 2018-04-27 | 刘荣 | Double catalyst noise eliminator of motorcycle |
| CN206299438U (en) * | 2016-12-15 | 2017-07-04 | 重庆泽创机电有限公司 | Exhaust silencer with lambda sensor |
| CN107701264A (en) * | 2017-11-25 | 2018-02-16 | 华东交通大学 | A kind of integral exhaust purifying muffler for being used to improve sound quality |
| CN208564712U (en) * | 2018-06-22 | 2019-03-01 | 力帆实业(集团)股份有限公司 | Motorcycle engine tail gas exhaust system |
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