CN202544965U - Combined gasoline engine exhaust silencer for motorcycles - Google Patents
Combined gasoline engine exhaust silencer for motorcycles Download PDFInfo
- Publication number
- CN202544965U CN202544965U CN2012200869668U CN201220086966U CN202544965U CN 202544965 U CN202544965 U CN 202544965U CN 2012200869668 U CN2012200869668 U CN 2012200869668U CN 201220086966 U CN201220086966 U CN 201220086966U CN 202544965 U CN202544965 U CN 202544965U
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Abstract
The utility model discloses a combined gasoline engine exhaust silencer for motorcycles. The combined gasoline engine exhaust silencer for motorcycles comprises an intake pipe, a silencer body, a perforated pipe, a front inner insert pipe, a middle inner insert pipe, a rear inner insert pipe, an inner exhaust insert pipe and an exhaust pipe. The silencer body is in the shape of a cylinder and is provided with a front circular partition, a middle circular partition and a rear circular partition, and by the partitions, the inside of the silencer body is divided into four chambers. The perforated pipe is located in the first chamber and connected with one end of the intake pipe. The front inner insert pipe penetrates through the circle center of the front partition and is located in the first chamber and the second chamber. The middle inner insert pipe penetrates through non-circle-center positions of the middle partition and the rear partition and is located in the second chamber, the third chamber and the fourth chamber. The rear inner insert pipe penetrates through non-circle-center position of the rear partition and is located in the third chamber and the fourth chamber. The rear inner insert pipe is staggered with the middle inner insert pipe. The inner exhaust insert pipe penetrating through the circle center of the rear partition is connected with the exhaust pipe and located in the third chamber and the fourth chamber. The combined gasoline engine exhaust silencer for motorcycles is low in manufacturing cost and acoustically sound.
Description
Technical field
The utility model relates to a kind of exhaust silencer, and the motorcycle be made up of muffler body, suction tude and tailpipe of saying so more specifically is with composite structure petrol engine exhaust silencer.
Background technique
Along with China's constant development of economy, the key player that motorcycle is played the part of in national economy, some problems that make people ignore to be brought by motorcycle are like fuel economy and pollutant emission.Yet along with the raising of living standards of the people, people have given more concern to the things that some are unfavorable for environment, and the further deterioration of environment also has to make us to begin thinking for some drawbacks of being brought by economic development.
The motorcycle noise problem has become the emphasis that people pay close attention to.In daily life, the economical and travelling comfort of motorcycle has become the main reference index that the Consumer buys motorcycle.Therefore, on the one hand in order to cater to consumer demand; On the other hand because country has put into effect some laws and regulations, in order to promote the competitive ability of self; The manufacturer of motorcycle is the manpower and materials of the amount of having high input aspect management and production not only, in the design at motorcycle initial stage, have introduced noise control technique simultaneously.
Along with the increase of the social recoverable amount of motor tricycle, the noise problem of being brought by it is also more and more serious.Because mostly motorcycle engine is single-cylinder engine, rough running, less stable, its noise pulsating nature is strong, is prone to produce the local anomaly response.Because motorcycle mobility is better, can shuttle back and forth in downtown area and residential belt, so the influence of its noise on human is bigger, this is the main cause that the restriction motorcycle gets in some cities.
The noise that when engine operation, produces mainly is made up of combustion noise, mechanical noise and aerodynamic noise, and wherein the exhaust sound in the aerodynamic noise is the most outstanding, is called one of principal element of pollution from environmental noise.Reducing the effective method of exhaust sound is to adopt exhaust silencer.In order to reduce the noise of motor, development sound deadening capacity silencing apparatus big, that exhaust resistance is low is the important means that reduces engine noise.
The model utility content
The purpose of the utility model is to provide a kind of low cost of manufacture, and acoustical behavior is good, and the little motorcycle of air-flow regenerated noise is with composite structure petrol engine exhaust silencer.
The technical solution that realizes the utility model purpose is: a kind of motorcycle is with composite structure petrol engine exhaust silencer; Comprise suction tude, muffler body, outlet pipe, perforated pipe, preceding interpolation pipe, middle interpolation pipe, back interpolation pipe and exhaust interpolation pipe; Said muffler body is cylindric, is provided with the circular preceding dividing plate, central diaphragm and the rear bulkhead that muffler body are divided into four chambers in it; Said perforated pipe is positioned at first chamber and links to each other with suction tude; The center of circle of dividing plate was positioned at first chamber and second chamber before interpolation pipe passed before said; Interpolation pipe runs through the non-home position of central diaphragm and rear bulkhead and is positioned at second chamber, the 3rd chamber and the 4th chamber in said; Said back interpolation pipe runs through the non-home position of rear bulkhead and is positioned at the 3rd chamber and the 4th chamber, staggers in back interpolation pipe position and middle interpolation pipe position; The center of circle that said exhaust interpolation pipe passes rear bulkhead links to each other with outlet pipe and is positioned at the 3rd chamber and the 4th chamber.
Further; The utility model motorcycle is with in the composite structure petrol engine exhaust silencer; Middle interpolation pipe is 2 with the quantity of back interpolation pipe; The diameter of the line of centres of said two middle interpolation pipes and central diaphragm and rear bulkhead coincides, and the line of centres of interpolation pipe and the diameter of rear bulkhead coincide after said two, and the line of centres of interpolation pipe is perpendicular behind the line of centres of said two middle interpolation pipes and two.
Further, the utility model motorcycle is with in the composite structure petrol engine exhaust silencer, and the length of said first chamber equals 60% ± 5% of muffler body length; The length of said second chamber equals 16% ± 5% of muffler body length; The length of said the 3rd chamber equals 12% ± 5% of muffler body length; The length of said the 4th chamber equals 12% ± 5% of muffler body length.
Further, the utility model motorcycle is with in the composite structure petrol engine exhaust silencer, and the length of said perforated pipe is 45% ± 5% of first chamber length; The part that said preceding interpolation pipe is positioned at first chamber is 25% ± 5% of first chamber length; The part that said preceding interpolation pipe is positioned at second chamber is 45% ± 5% of second chamber length; The part that said middle interpolation pipe is positioned at second chamber is 45% ± 5% of second chamber length; The part that said back interpolation pipe is positioned at the 3rd chamber is 25% ± 5% of the 3rd chamber length; The part that said exhaust interpolation pipe is positioned at the 3rd chamber is 50% ± 5% of the 3rd chamber length; The part that said middle interpolation pipe is positioned at the 4th chamber is 40% ± 5% of the 4th chamber length; The part that said back interpolation pipe is positioned at the 4th chamber is 40% ± 5% of the 4th chamber length.
Further, the utility model motorcycle is with in the composite structure petrol engine exhaust silencer, and the punching rate of said perforated pipe is 8% ± 2%, and perforation field equates with the suction tude sectional area.
The utility model compared with prior art; Its remarkable advantage: the utility model adopts the first chamber air flow stream implantation site to be distributed in pipe surface; Form the air inlet aperture; This design proposal not only helps improving the air-flow divergence ratio, thereby increases sound deadening capacity, can also reduce the air-flow regenerated noise effectively; Second chamber air-flow outflow pipeline is divided into two long tubes and is uniformly distributed along the circumference in rear bulkhead; Interpolation pipe is discharged and is flowed into the 4th chamber in the air-flow warp; The 4th chamber air-flow flows out pipeline and is divided into two short tubes and is uniformly distributed along the circumference in rear bulkhead, air-flow through the back interpolation pipe discharge and flow into the 3rd chamber, finally flow into the tailpipe discharge through the exhaust interpolation pipe; This return flow type design proposal has increased air communication effectively and has crossed area, thereby has reduced the air-flow regenerated noise.
Description of drawings
Fig. 1 is the structural representation of the utility model motorcycle with composite structure petrol engine exhaust silencer.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1; A kind of motorcycle is with composite structure petrol engine exhaust silencer; Comprise suction tude 1, muffler body 3, outlet pipe 13; Perforated pipe 2, preceding interpolation pipe 5, middle interpolation pipe 7, back interpolation pipe 14 and exhaust interpolation pipe 15, said muffler body 3 is cylindric, is provided with the circular preceding dividing plate 10, central diaphragm 11 and the rear bulkhead 12 that muffler body 3 are divided into four chambers in it; Said perforated pipe 2 is positioned at first chamber 4 and links to each other with suction tude 1; Interpolation pipe 5 runs through the center of circle of preceding dividing plate 10 and is positioned at first chamber 4 and second chamber 6 before said; Interpolation pipe 7 is 2 with the quantity of back interpolation pipe 14 in said, and the diameter of the line of centres of said two middle interpolation pipes and central diaphragm 11 and rear bulkhead 12 coincides and is positioned at second chamber 6, the 3rd chamber 8 and the 4th chamber 9; The diameter of the line of centres of interpolation pipe and rear bulkhead 12 coincides and is positioned at the 3rd chamber 8 and the 4th chamber 9 after said two, and the line of centres of interpolation pipe is perpendicular behind the line of centres of said two middle interpolation pipes and two; The center of circle that said exhaust interpolation pipe 15 passes rear bulkhead 12 links to each other with outlet pipe 13 and is positioned at the 3rd chamber 8 and the 4th chamber 9.
Time spent connects petrol engine exhaust extension tube with suction tude 1, and the high velocity air that makes discharge is through suction tude 1; Get into perforated pipe 2, get into first chamber 4, expand via the aperture of perforated pipe 2; Shrink discharge via preceding interpolation pipe 5 front end apertures; Air-flow continues process aperture, preceding interpolation pipe 5 rear end and expands entering second chamber 6, shrinks via middle interpolation pipe 7 front end apertures and discharges, and aperture, interpolation pipe 7 rear end is expanded and got into the 4th chamber 9 in the air-flow continuation process; Shrink discharge via aperture, interpolation pipe 14 rear end, back; Air-flow continues warp and expands entering the 3rd chamber 8 in interpolation pipe 14 front end apertures later, and air-flow continues process exhaust interpolation pipe 15 front end apertures and shrinks discharge entering tailpipe 13, and last air communication is crossed tailpipe 13 discharges.First chamber, 4 air-flows flow into through the aperture of perforated pipe 2, flow out through preceding interpolation pipe 5 front end apertures, possess expansion and shrink the noise elimination Elementary Function EF.Compared with prior art, the air flow stream implantation site is distributed in pipe surface, forms the air inlet aperture, this design proposal not only helps improving the air-flow divergence ratio, thereby increases sound deadening capacity, can also reduce the air-flow regenerated noise effectively.Second chamber, 6 air-flows flow into through aperture, preceding interpolation pipe 5 rear end, and flow out in interpolation pipe 7 front end apertures in the process, possess expansion and shrink the noise elimination Elementary Function EF; Aperture, interpolation pipe 7 rear end flows in the 4th chamber 9 air-flows process, through aperture, interpolation pipe 14 rear end outflow later, possesses to expand and shrinks the noise elimination Elementary Function EF; The 3rd chamber 8 air-flows flow out through aperture, exhaust interpolation pipe 15 rear end through interpolation pipe 14 front end apertures inflow later, possess expansion equally and shrink the noise elimination Elementary Function EF.Compared with prior art, air-flow is flowed out pipeline be divided into along the tubule of circumference interlaced arrangement from central tube, form refluxing chamber, this design proposal has increased air communication effectively and has crossed area, thereby has reduced the air-flow regenerated noise.
Combine accompanying drawing that the utility model has been carried out the description of exemplary above, but the concrete realization of the utility model does not receive the restriction of aforesaid way.As long as adopted the design of the utility model and the reform of the various unsubstantialities that technological scheme is carried out, or the design of the utility model and technological scheme are directly applied to other occasion, all within the protection domain of the utility model through improving.
Claims (5)
1. a motorcycle is with composite structure petrol engine exhaust silencer; Comprise suction tude, muffler body and outlet pipe; Said muffler body is cylindric; It is characterized in that: also comprise perforated pipe, preceding interpolation pipe, middle interpolation pipe, back interpolation pipe and exhaust interpolation pipe, be provided with the circular preceding dividing plate, central diaphragm and the rear bulkhead that it are divided into four chambers in the said muffler body; Said perforated pipe is positioned at first chamber and links to each other with suction tude one end; The center of circle of dividing plate was positioned at first chamber and second chamber before interpolation pipe passed before said; Interpolation pipe runs through the non-home position of central diaphragm and rear bulkhead and is positioned at second chamber, the 3rd chamber and the 4th chamber in said; Said back interpolation pipe runs through the non-home position of rear bulkhead and is positioned at the 3rd chamber and the 4th chamber, staggers in back interpolation pipe position and middle interpolation pipe position; The center of circle that said exhaust interpolation pipe passes rear bulkhead links to each other with outlet pipe and is positioned at the 3rd chamber and the 4th chamber.
2. motorcycle according to claim 1 is with composite structure petrol engine exhaust silencer; It is characterized in that: middle interpolation pipe is 2 with the quantity of back interpolation pipe; The diameter of the line of centres of said two middle interpolation pipes and central diaphragm and rear bulkhead coincides; The line of centres of interpolation pipe and the diameter of rear bulkhead coincide after said two, and the line of centres of interpolation pipe is perpendicular behind the line of centres of said two middle interpolation pipes and two.
3. motorcycle according to claim 1 and 2 is characterized in that with composite structure petrol engine exhaust silencer: the length of said first chamber equals 60% ± 5% of muffler body length; The length of said second chamber equals 16% ± 5% of muffler body length; The length of said the 3rd chamber equals 12% ± 5% of muffler body length; The length of said the 4th chamber equals 12% ± 5% of muffler body length.
4. motorcycle according to claim 1 and 2 is characterized in that with composite structure petrol engine exhaust silencer: the length of said perforated pipe is 45% ± 5% of first chamber length; The part that said preceding interpolation pipe is positioned at first chamber is 25% ± 5% of first chamber length; The part that said preceding interpolation pipe is positioned at second chamber is 45% ± 5% of second chamber length; The part that said middle interpolation pipe is positioned at second chamber is 45% ± 5% of second chamber length; The part that said back interpolation pipe is positioned at the 3rd chamber is 25% ± 5% of the 3rd chamber length; The part that said exhaust interpolation pipe is positioned at the 3rd chamber is 50% ± 5% of the 3rd chamber length; The part that said middle interpolation pipe is positioned at the 4th chamber is 40% ± 5% of the 4th chamber length; The part that said back interpolation pipe is positioned at the 4th chamber is 40% ± 5% of the 4th chamber length.
5. motorcycle according to claim 4 is characterized in that with composite structure petrol engine exhaust silencer: the punching rate of said perforated pipe is 8% ± 2%, and perforation field equates with the suction tude sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200869668U CN202544965U (en) | 2012-03-09 | 2012-03-09 | Combined gasoline engine exhaust silencer for motorcycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200869668U CN202544965U (en) | 2012-03-09 | 2012-03-09 | Combined gasoline engine exhaust silencer for motorcycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202544965U true CN202544965U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200869668U Expired - Fee Related CN202544965U (en) | 2012-03-09 | 2012-03-09 | Combined gasoline engine exhaust silencer for motorcycles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202544965U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675478A (en) * | 2015-03-11 | 2015-06-03 | 河南柴油机重工有限责任公司 | Exhaust muffler for box type generating unit |
| CN106593579A (en) * | 2016-12-15 | 2017-04-26 | 重庆泽创机电有限公司 | Muffler main body assembly |
| CN110454258A (en) * | 2019-07-09 | 2019-11-15 | 南京航空航天大学 | A kind of automobile-used single cylinder diesel engine exhausting silencer |
-
2012
- 2012-03-09 CN CN2012200869668U patent/CN202544965U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675478A (en) * | 2015-03-11 | 2015-06-03 | 河南柴油机重工有限责任公司 | Exhaust muffler for box type generating unit |
| CN106593579A (en) * | 2016-12-15 | 2017-04-26 | 重庆泽创机电有限公司 | Muffler main body assembly |
| CN110454258A (en) * | 2019-07-09 | 2019-11-15 | 南京航空航天大学 | A kind of automobile-used single cylinder diesel engine exhausting silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20140309 |