CN105569772A - Silencer of exhaust system of motorcycle - Google Patents
Silencer of exhaust system of motorcycle Download PDFInfo
- Publication number
- CN105569772A CN105569772A CN201610090654.7A CN201610090654A CN105569772A CN 105569772 A CN105569772 A CN 105569772A CN 201610090654 A CN201610090654 A CN 201610090654A CN 105569772 A CN105569772 A CN 105569772A
- Authority
- CN
- China
- Prior art keywords
- chamber
- cavity
- pipeline section
- silencing apparatus
- straight 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.)
- Granted
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
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
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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
- F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
-
- 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
- F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
-
- 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
- F01N2210/00—Combination of methods of silencing
- F01N2210/02—Resonance and interference
-
- 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
- F01N2210/00—Combination of methods of silencing
- F01N2210/04—Throttling-expansion and resonance
-
- 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
- F01N2210/00—Combination of methods of silencing
- F01N2210/06—Throttling-expansion and interference
-
- 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
- F01N2230/00—Combination of silencers and other devices
- F01N2230/04—Catalytic converters
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 provides a silencer of an exhaust system of a motorcycle. An inner cavity of a shell is sequentially divided into a first cavity, a second cavity, a third cavity and a fourth cavity; an air outlet end of a straight barrel pipe section of an air inlet pipe extends to the first cavity from an air inlet of the silencer; a three-way catalyst is arranged in an inner cavity of the straight barrel pipe section; a U-shaped pipe section penetrates through the second cavity from the first cavity, and then returns to the first cavity in a penetrating manner; the silencer further comprises a first ventilating pipe and a second ventilating pipe; the first ventilating pipe penetrates through the third cavity from the second cavity and extends into the fourth cavity; the second ventilating pipe penetrates through the fourth cavity from the third cavity; and an air outlet pipe penetrates through the fourth cavity from the third cavity and extends out of an end surface of a rear end of the shell to form an exhaust port of the silencer. Through abrupt change of the cross section and insertion of the cross section of the silencer, waste gases entering the cavities reflect and mutually interfere (rub) to achieve the silencing effect, and through increasing of an air flow path, air flow pressure and speed are reduced to reduce noises.
Description
Technical field
The present invention relates to motorcycle field, be specifically related to the silencing apparatus of exhaust system for motorcycle.
Background technique
Motorcycle air inlet system and exhaust system comprise air inlet system and exhaust system.On the engine, the part of mixed gas inspiration motor in air inlet system, the part that the waste gas be over burning discharges motor is called exhaust system.Air inlet system comprises air-strainer, Carburetor and suction tude etc.Air is after air-strainer filters, and flow through Carburetor and mix with gasoline, enter intake manifold through suction tude, logical intake valve enters ignition in motor, produces power.
Exhaust system for motorcycle comprises motor and silencing apparatus, and the exhaust end of motor is connected with silencing apparatus.Silencing apparatus a kind ofly allows air-flow to pass through and the device of noise attenuation, the therefore size of the good bad influence motorcycle noise of Muffler Performance.Existing motorcycle causes motorcycle idle speed noise large because motor, vehicle body etc. vibrate.In order to solve the noise problem of motorcycle, applicant proposed a kind of low noise exhaust system for motorcycle, reduce the idling noise of motorcycle, but while realizing low noise exhaust system for motorcycle, claimant also needs to consider how to design a kind of silencing apparatus, and the exhaust noise of the exhaust end of motor is reduced.
Summary of the invention
For above shortcomings in prior art, patent of the present invention provides a kind of silencing apparatus of exhaust system for motorcycle, for reducing the exhaust noise of the exhaust end of motor.
For solving the problems of the technologies described above, realize goal of the invention, the technical solution used in the present invention is as follows:
A silencing apparatus for exhaust system for motorcycle, comprises shell, and the suction tude be arranged in shell inner cavity and steam outlet pipe; Be provided with two the first dividing plates and a second partition that are parallel to each other in the inner chamber of described shell successively, lumen segmentation become the first chamber, the second chamber, the 3rd chamber and the 4th chamber, described first dividing plate is provided with the vent for being communicated with adjacent two chambers; Described suction tude comprises straight tube pipeline section and U-shaped pipeline section, and the inlet end of straight tube pipeline section passes case nose end face and forms silencing apparatus suction port; The outlet side of straight tube pipeline section extends to the first chamber from silencing apparatus suction port and arranges, at least one three-way catalyst is coaxially arranged with in the inner chamber of straight tube pipeline section, U-shaped pipeline section one end is connected with the outlet side of straight tube pipeline section, the other end passes the second chamber from the first chamber, more bending first chamber of wearing back is arranged; Also comprise the first breathing pipe and the second breathing pipe, the first breathing pipe stretches in the 4th chamber from the second chamber arrange through the 3rd chamber; Second breathing pipe is arranged from the 3rd chamber through the 4th chamber; Described steam outlet pipe extends outer casing back end face from the 3rd chamber through the 4th chamber and forms silencing apparatus relief opening.
As the further optimization of such scheme, the straight tube pipeline section that described suction tude is positioned at the first chamber is provided with through hole.
As the further optimization of such scheme, the straight tube pipeline section of described suction tude is inclined in the inner chamber of shell, and the one end be connected with U-shaped pipeline section in straight tube pipeline section tilts to the direction away from housing axis.
As the further optimization of such scheme, also comprise and be fixed in the first chamber and the second chamber, the sound-absorbing cylinder coaxially arranged with the first chamber and the second chamber, sound-absorbing cylinder circumference is along its length interlocked is furnished with sound-absorption hole; Acoustical cotton is equipped with in sound-absorbing cylinder and the gap between the first chamber inner wall and the second chamber inner wall.
As the further optimization of such scheme, described silencing apparatus relief opening is bent downwardly extension.
Compared to prior art, tool of the present invention has the following advantages:
Silencing apparatus provided by the invention, by the abrupt change of cross-section and cross section plug-in type, makes waste gas enter in these chambers to reflect, mutually interferes (friction) and reach soundproof effect, and also by increasing air-flow flow process, reduction stream pressure and flow velocity carry out noise reduction.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of the silencing apparatus of exhaust system for motorcycle provided by the invention.
Fig. 2 is A-A sectional view in Fig. 1.
Fig. 3 is B-B sectional view in Fig. 1.
Fig. 4 is C-C sectional view in Fig. 1.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment:
The silencing apparatus of exhaust system for motorcycle, as Figure 1-4.Comprise shell 29, and the suction tude 25 be arranged in shell inner cavity and steam outlet pipe 30, two the first dividing plates and a second partition that are parallel to each other are provided with successively in the inner chamber of described shell 29, lumen segmentation is become the first chamber 21, second chamber 22,3rd chamber 23 and the 4th chamber 24, described first dividing plate is provided with the vent 31 for being communicated with adjacent two chambers; Described suction tude comprises straight tube pipeline section and U-shaped pipeline section, and the inlet end of straight tube pipeline section passes shell 29 front end surface and forms silencing apparatus suction port; The outlet side of straight tube pipeline section extends to the first chamber 21 from silencing apparatus suction port and arranges, at least one three-way catalyst is coaxially arranged with in the inner chamber of straight tube pipeline section, U-shaped pipeline section one end is connected with the outlet side of straight tube pipeline section, the other end through the second chamber 22 from the first chamber 21, is more bendingly worn back the first chamber 21 and is arranged; Also comprise the first breathing pipe 27 and the second breathing pipe 28, first breathing pipe 27 to stretch in the 4th chamber 24 through the 3rd chamber 23 from the second chamber 22 and arrange; Second breathing pipe 28 is arranged from the 3rd chamber 23 through the 4th chamber 24; Described steam outlet pipe 30 extends outer casing back end face from the 3rd chamber 23 through the 4th chamber 24 and forms silencing apparatus relief opening.
Silencing apparatus internal structure as shown in Figure 1, is made up of two three-way catalysts, three dividing plates etc.Off-gas flows enters from silencing apparatus suction port, and enter rear priority through two three-way catalysts, the waste gas of motor has been carried out catalytic reaction and has reached emission standard, the trend of air-flow in silencing apparatus inside is:
A, first arrive the first chamber by the straight tube pipeline section in suction tude and U-tube section, U-tube section increases air-flow flow process, reduces stream pressure and flow velocity, and meanwhile, gas is turned and made gas form harmonic wave in venting channels, significantly reduces noise.Waste gas is at the first chamber expansion, and the cross section generation sound wave reflection of sudden change or interference phenomenon, reduce to extraradial acoustic energy, serve inhibition to the propagation of sound, play the effect of noise reduction.The straight tube pipeline section that described suction tude 25 is positioned at the first chamber is provided with through hole, reduces the back pressure of vent systems better.The straight tube pipeline section of described suction tude 25 is inclined in the inner chamber of shell 29, and the one end be connected with U-shaped pipeline section in straight tube pipeline section tilts to the direction away from housing axis.The straight tube pipeline section tilted increases air-flow flow process larger.
B, air-flow enter the second chamber through the vent of the first dividing plate shown in Fig. 2.Vent on first dividing plate, enables waste gas enter in adjacent chamber by these through holes, so just can reduce the back pressure of vent systems, reduces waste gas by resistance, improves soundproof effect simultaneously.In this step, gas there occurs and cuts cross section (the first chamber) to small bore (vent) again to twice abrupt change of cross-section of large-section (the second chamber) from large, effectively reduces exhaust sound.During concrete enforcement, the direction extension that dividing plate passes along its circumference to breathing pipe for the Kong Jun passed for each breathing pipe is provided with guiding wall, namely makes breathing pipe install more firm, also plays simultaneously and guide breathing pipe installation, effect easy for installation.
C, by the first breathing pipe, air-flow is imported the 4th chamber, period also occurs can twice abrupt change of cross-section (the second chamber in the first breathing pipe pipe, then to the 4th chamber) and plug in duct (the first breathing pipe) noise elimination, reduces exhaust sound.The air-flow of the second chamber can also import the 3rd chamber by the vent of the first dividing plate shown in Fig. 3 simultaneously.
D, by the second breathing pipe, air-flow is imported the 3rd chamber, period also occurs can twice abrupt change of cross-section (the 4th chamber in the second breathing pipe pipe, then to the 3rd chamber) and plug in duct (the second breathing pipe) noise elimination, reduces exhaust sound.
E, by steam outlet pipe, gas to be discharged, in step c-e, air-flow is from the second chamber to the 4th chamber, after returning the 3rd chamber, finally discharge from the 4th chamber, directly compare from the 4th chamber discharge from the second chamber through the 3rd chamber with air-flow, in this step c-e, gas has carried out repeatedly turning, the flow process of air-flow is longer, and noise reduction is better.Silencing apparatus as shown in Figure 1, by repeatedly circulating, finally reaches and improves silencing apparatus tonequality object.
Also comprise in this hush pipe and be fixed in the first chamber 21 and the second chamber 22, with the first chamber 21 and the coaxial sound-absorbing cylinder arranged of the second chamber 22, sound-absorbing cylinder circumference is along its length interlocked and is furnished with sound-absorption hole; Acoustical cotton 26 is equipped with in sound-absorbing cylinder and the gap between the first chamber inner wall and the second chamber inner wall.Sound attenuation hole section, cylinder-like shell and dividing plate constitutive resistance acoustic wave filter structure, eliminate the mid-frequency noise in vent systems.Acoustical cotton is used for the effect that sound-absorbing plays noise reduction.Acoustical cotton can adopt sticky mode that is glutinous or welding to be fixed on outer casing inner wall.
Described silencing apparatus relief opening is bent downwardly extension.Silencing apparatus tail down, decrease the surface of contact of tail gas and air, effectively reducing burning again and producing and blow out the probability of abnormal sound, reducing exhaust noise, and steam outlet pipe tail down is conducive to the moisture discharge in discharge process, contribute to the antirust of silencer cylinder inside.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (5)
1. a silencing apparatus for exhaust system for motorcycle, comprises shell (29), and the suction tude (25) be arranged in shell inner cavity and steam outlet pipe (30); Its characteristic is, two the first dividing plates and a second partition that are parallel to each other are provided with successively in the inner chamber of described shell (29), lumen segmentation is become the first chamber (21), second chamber (22), 3rd chamber (23) and the 4th chamber (24), described first dividing plate is provided with the vent (31) for being communicated with adjacent two chambers; Described suction tude comprises straight tube pipeline section and U-shaped pipeline section, and the inlet end of straight tube pipeline section passes shell (29) front end surface and forms silencing apparatus suction port; The outlet side of straight tube pipeline section extends to the first chamber (21) from silencing apparatus suction port and arranges, at least one three-way catalyst is coaxially arranged with in the inner chamber of straight tube pipeline section, U-shaped pipeline section one end is connected with the outlet side of straight tube pipeline section, the other end through the second chamber (22), more bending wears back the first chamber (21) setting from the first chamber (21); Also comprise the first breathing pipe (27) and the second breathing pipe (28), the first breathing pipe (27) stretches into setting in the 4th chamber (24) from the second chamber (22) through the 3rd chamber (23); Second breathing pipe (28) is arranged from the 3rd chamber (23) through the 4th chamber (24); Described steam outlet pipe (30) extends outer casing back end face from the 3rd chamber (23) through the 4th chamber (24) and forms silencing apparatus relief opening.
2. the silencing apparatus of exhaust system for motorcycle as claimed in claim 1, its characteristic is, the straight tube pipeline section that described suction tude (25) is positioned at the first chamber is provided with through hole.
3. the silencing apparatus of exhaust system for motorcycle as claimed in claim 1, its characteristic is, the straight tube pipeline section of described suction tude (25) is inclined in the inner chamber of shell (29), and the one end be connected with U-shaped pipeline section in straight tube pipeline section tilts to the direction away from housing axis.
4. the silencing apparatus of exhaust system for motorcycle as claimed in claim 1, its characteristic is, also comprise and be fixed in the first chamber (21) and the second chamber (22), with the first chamber (21) and the coaxial sound-absorbing cylinder arranged of the second chamber (22), sound-absorbing cylinder circumference is along its length interlocked and is furnished with sound-absorption hole; Acoustical cotton (26) is equipped with in sound-absorbing cylinder and the gap between the first chamber inner wall and the second chamber inner wall.
5. the silencing apparatus of exhaust system for motorcycle as claimed in claim 1, its characteristic is, described silencing apparatus relief opening is bent downwardly extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090654.7A CN105569772B (en) | 2016-02-18 | 2016-02-18 | A kind of silencer of exhaust system for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090654.7A CN105569772B (en) | 2016-02-18 | 2016-02-18 | A kind of silencer of exhaust system for motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105569772A true CN105569772A (en) | 2016-05-11 |
| CN105569772B CN105569772B (en) | 2018-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610090654.7A Expired - Fee Related CN105569772B (en) | 2016-02-18 | 2016-02-18 | A kind of silencer of exhaust system for motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105569772B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952914A (en) * | 2018-06-22 | 2018-12-07 | 力帆实业(集团)股份有限公司 | Exhaust system for motorcycle |
| CN108981033A (en) * | 2018-08-21 | 2018-12-11 | 四川健尔莱医疗器械科技有限公司 | A kind of low-noise air clarifier |
| CN109458247A (en) * | 2018-10-22 | 2019-03-12 | 济南轻骑摩托车有限公司 | A kind of special-shaped noise eliminator of motorcycle of large-duty engine |
| CN110397571A (en) * | 2019-08-13 | 2019-11-01 | 珠海格力电器股份有限公司 | Denoising device and compressor with upset air pulsing effect |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050472U (en) * | 1989-08-12 | 1990-01-03 | 李源泰 | Automotive purifying and silencing apparatus |
| CN201110210Y (en) * | 2007-08-30 | 2008-09-03 | 重庆建设摩托车股份有限公司 | Engine exhaust silencer |
| CN201273204Y (en) * | 2008-10-13 | 2009-07-15 | 远勤山 | Cylinder shaped silencer |
| CN201593453U (en) * | 2009-12-21 | 2010-09-29 | 重庆隆鑫机车有限公司 | Exhaust muffler for motorbike engine |
| CN202500635U (en) * | 2012-02-07 | 2012-10-24 | 济南轻骑摩托车有限公司 | Motorcycle silencer |
| CN103375224A (en) * | 2012-04-27 | 2013-10-30 | 雅马哈发动机株式会社 | Muffler and saddle-ride type vehicle |
| CN204402621U (en) * | 2014-12-19 | 2015-06-17 | 江苏宗申三轮摩托车制造有限公司 | Motor tricycle baffler |
| CN205400853U (en) * | 2016-02-18 | 2016-07-27 | 力帆实业(集团)股份有限公司 | Motorcycle exhaust system's silencer |
-
2016
- 2016-02-18 CN CN201610090654.7A patent/CN105569772B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050472U (en) * | 1989-08-12 | 1990-01-03 | 李源泰 | Automotive purifying and silencing apparatus |
| CN201110210Y (en) * | 2007-08-30 | 2008-09-03 | 重庆建设摩托车股份有限公司 | Engine exhaust silencer |
| CN201273204Y (en) * | 2008-10-13 | 2009-07-15 | 远勤山 | Cylinder shaped silencer |
| CN201593453U (en) * | 2009-12-21 | 2010-09-29 | 重庆隆鑫机车有限公司 | Exhaust muffler for motorbike engine |
| CN202500635U (en) * | 2012-02-07 | 2012-10-24 | 济南轻骑摩托车有限公司 | Motorcycle silencer |
| CN103375224A (en) * | 2012-04-27 | 2013-10-30 | 雅马哈发动机株式会社 | Muffler and saddle-ride type vehicle |
| CN204402621U (en) * | 2014-12-19 | 2015-06-17 | 江苏宗申三轮摩托车制造有限公司 | Motor tricycle baffler |
| CN205400853U (en) * | 2016-02-18 | 2016-07-27 | 力帆实业(集团)股份有限公司 | Motorcycle exhaust system's silencer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952914A (en) * | 2018-06-22 | 2018-12-07 | 力帆实业(集团)股份有限公司 | Exhaust system for motorcycle |
| CN108981033A (en) * | 2018-08-21 | 2018-12-11 | 四川健尔莱医疗器械科技有限公司 | A kind of low-noise air clarifier |
| CN109458247A (en) * | 2018-10-22 | 2019-03-12 | 济南轻骑摩托车有限公司 | A kind of special-shaped noise eliminator of motorcycle of large-duty engine |
| CN110397571A (en) * | 2019-08-13 | 2019-11-01 | 珠海格力电器股份有限公司 | Denoising device and compressor with upset air pulsing effect |
| CN110397571B (en) * | 2019-08-13 | 2024-03-08 | 珠海格力电器股份有限公司 | Noise reduction device with disturbing gas pulsation effect and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105569772B (en) | 2018-11-02 |
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Granted publication date: 20181102 Termination date: 20210218 |