CN101737121A - Motorcycle sound eliminator - Google Patents
Motorcycle sound eliminator Download PDFInfo
- Publication number
- CN101737121A CN101737121A CN200910217003A CN200910217003A CN101737121A CN 101737121 A CN101737121 A CN 101737121A CN 200910217003 A CN200910217003 A CN 200910217003A CN 200910217003 A CN200910217003 A CN 200910217003A CN 101737121 A CN101737121 A CN 101737121A
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- China
- Prior art keywords
- noise elimination
- elimination chamber
- sound
- noise
- inner connecting
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Abstract
The invention provides a motorcycle sound eliminator which is provided with a sound eliminator cylinder body (1) and an inner connecting pipe (2), wherein an inner cavity of the sound eliminator cylinder body (1) is divided into a first sound eliminating cavity (3), a second sound eliminating cavity (4), a third sound eliminating cavity (5) and a fourth sound eliminating cavity (6); the pipe wall of the rear end of the inner connecting pipe (2) is provided with a radial exhaust small hole (11); a lining cylinder (12) is arranged in the second sound eliminating cavity (4) near the inside wall of the sound eliminator cylinder body (1); and the rear end of the inner connecting pipe (2) extends into the second sound eliminating cavity (4) after penetrating through a porous plate (7) between the first sound eliminating cavity (3) and the second sound eliminating cavity (4) and is provided with a cover (14) with an airflow through hole (13). The technical scheme of the invention reduces the appearance temperature of the sound eliminator cylinder body of the motorcycle, eliminates tail gas noise and improves the intermediate and low speed performance of an engine, and people feel strong for acceleration during riding.
Description
Technical field
The present invention relates to motorcycle part, especially noise eliminator of motorcycle.
Background technique
At present, the equipped noise eliminator of motorcycle structure of common and CG125, CG150 motor as shown in Figure 1 and Figure 2, silencer cylinder 1 is a single layer structure, the inner chamber of silencer cylinder 1 is divided into several noise elimination chambers by dividing plate, there is baffle plate inner connecting tube 2 ends that are positioned at the first noise elimination chamber, and on the tube wall of the inner connecting tube that is close to this baffle plate, be provided with radially exhaust hole, dividing plate between first and second noise elimination chamber is a porous slab, communicate by air pipe 9 between remaining noise elimination chamber, gas is finally discharged by tail pipe.
In use there is following defective in the noise eliminator of motorcycle of this structure:
One, because silencer cylinder is a single layer structure, the temperature of the tail gas that motor is discharged in outlet pipe flows to silencer cylinder the time is very high, particularly the radially exhaust hole of air-flow on inner connecting tube directly sprays to silencer cylinder, can cause cylindrical shell heating and variable color, and influence drives safe and attractive in appearance;
Flow velocity when two, the tail gas of motor discharge enters silencer cylinder is very high, can produce bigger excitation noise, and this excitation noise is the important component part of motorcycle exhaust noise;
Three, the length of inner connecting tube is shorter, and diameter is bigger than normal, and motorcycle trailing wheel when middle low speed is exerted oneself and can not be strengthened significantly with the increase of the speed of a motor vehicle, and the low-speed performance of motor is relatively poor, and sensation is quickened unable;
Four, the quantity of air pipe is more, and the exhaust tail signal to noise ratio is point, diffusing.
Summary of the invention
The problem to be solved in the present invention provides a kind of appearance temperature that has reduced silencer cylinder, and has reduced the noise eliminator of motorcycle of exhaust sound.
For solving the problems of the technologies described above, noise eliminator of motorcycle provided by the invention, include silencer cylinder and inner connecting tube, the inner chamber of silencer cylinder is separated into first, second, the third and fourth noise elimination chamber, wherein first, be provided with porous slab between the second noise elimination chamber, second, between the 4th noise elimination chamber and the 3rd, be provided with dividing plate between the 4th noise elimination chamber, second, between the 3rd noise elimination chamber and the 3rd, communicate by air pipe between the 4th noise elimination chamber, the 4th noise elimination chamber communicates with tailpipe, inner connecting tube rear end tube wall is provided with radially exhaust hole, the indoor madial wall that is close to silencer cylinder of second noise elimination cavity is provided with inside lining sleeve, the inner connecting tube rear end protrudes in the second noise elimination chamber after passing porous slab, and the rearward end of inner connecting tube is provided with the stifle of band air-flow via hole.
High temperature and high speed air-flow in the inner connecting tube is the radially exhaust hole on tube wall not only, but also the air-flow via hole on stifle enters into the second noise elimination chamber, enter not only rearwards the 3rd noise elimination chamber diffusion of air-flow in the second noise elimination chamber, also the first noise elimination chamber to the front spreads, increased the flow direction and the scope of high temperature and high speed air-flow, reduced flow velocity, simultaneously by increasing inside lining sleeve, air-flow is not directly contacted with silencer cylinder, reduced the appearance temperature of silencer cylinder.Inside lining sleeve also has the effect of sound insulation, and the excitation noise that produces when the high temperature and high speed air-flow is entered the second noise elimination chamber has certain shielding action, thereby has finally improved the tail gas noise of motorcycle.
Further, the length of described inner connecting tube is 320～330mm, and external diameter is 23～27mm, and thickness is 1.1～1.3mm.Compare conventional construction, the length of inner connecting tube prolongs, reduced, increased the total length that links to each other with engine exhaust pipe, air-flow in the engine exhaust pipe is increased the suction of firing chamber, waste gas is easy to drain, and air inlet is just more abundant, so just can improve the middle low-speed performance of motor.
Further, be communicated with by an air pipe respectively between described the second, the 4th noise elimination chamber and between the 3rd, the 4th noise elimination chamber, promptly reduce the quantity of air pipe, air-flow is concentrated, the tail gas noise sounds feels simple and honest, strong.
Adopt technological scheme of the present invention, reduced the appearance temperature of noise eliminator of motorcycle cylindrical shell, improved the tail gas noise, improved the middle low-speed performance of motor, it is strong to quicken sensation when driving.
Description of drawings
Fig. 1 is and CG125, the equipped traditional noise eliminator of motorcycle structural representation of CG150 motor;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the invention;
Fig. 4 is the B-B sectional view of Fig. 2;
Among the figure: 1. silencer cylinder; 2. inner connecting tube; 3. the first noise elimination chamber; 4. the second noise elimination chamber; 5. the 3rd noise elimination chamber; 6. the 4th noise elimination chamber; 7. porous slab; 8. dividing plate; 9. air pipe; 10. tailpipe; 11. exhaust hole radially; 12. inside lining sleeve; 13. air-flow via hole; 14. stifle.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 3, noise eliminator of motorcycle of the present invention, with CG125, the CG150 motor is equipped to be used, have silencer cylinder 1 and inner connecting tube 2, the inner chamber of silencer cylinder 1 is separated into the first noise elimination chamber 3, the second noise elimination chamber 4, the 3rd noise elimination chamber 5 and the 4th noise elimination chamber 6, wherein first, the second noise elimination chamber 3, be provided with porous slab 7 between 4, second, the 4th noise elimination chamber 4, between 6 and the 3rd, the 4th noise elimination chamber 5, be provided with dividing plate 8 between 6, second, the 3rd noise elimination chamber 4, between 5 and the 3rd, the 4th noise elimination chamber 5, communicate by air pipe 9 between 6, the 4th noise elimination chamber 6 communicates with tailpipe 10, inner connecting tube 2 rear end tube walls are provided with radially exhaust hole 11, the madial wall that is close to silencer cylinder 1 in the second noise elimination chamber 4 is provided with inside lining sleeve 12, inner connecting tube 2 rear ends protrude in the second noise elimination chamber 4 after passing porous slab 7, and the rearward end of inner connecting tube 2 is provided with the stifle 14 of band air-flow via hole 13.
The high temperature and high speed air-flow that inner connecting tube is 2 li is the radially exhaust hole 11 on tube wall not only, but also the air-flow via hole 13 on stifle 14 enters into the second noise elimination chamber 4, enter not only rearwards the 3rd noise elimination chamber 5 diffusion of air-flow in the second noise elimination chamber 4, also the first noise elimination chamber 3 to the front spreads, the flow direction and the scope of high temperature and high speed air-flow have been increased, reduced flow velocity, simultaneously by increasing inside lining sleeve 12, air-flow is not directly contacted with silencer cylinder 1, reduced the appearance temperature of silencer cylinder 1.Inside lining sleeve 12 also has the effect of sound insulation, and the excitation noise that produces when the high temperature and high speed air-flow is entered the second noise elimination chamber 4 has certain shielding action, thereby has finally improved the tail gas noise of motorcycle.
The length of inner connecting tube 2 is 320～330mm, external diameter is 23～27mm, thickness is 1.1～1.3mm, compares conventional construction, and the length of inner connecting tube 2 prolongs, reduced, increased the total length that links to each other with engine exhaust pipe, the air-flow in the engine exhaust pipe is increased the suction of firing chamber, waste gas is easy to drain, air inlet is just more abundant, so just can improve the middle low-speed performance of motor.
Referring to Fig. 3, Fig. 4, be communicated with by an air pipe 9 respectively between the second, the 4th noise elimination chamber 4,6 and between the 3rd, the 4th noise elimination chamber 5,6, promptly reduce the quantity of air pipe, air-flow is concentrated, the tail gas noise sounds feels simple and honest, strong.
Claims (3)
1. noise eliminator of motorcycle, comprise silencer cylinder and inner connecting tube, the inner chamber of silencer cylinder is separated into the first, second, third and the 4th noise elimination chamber, wherein be provided with porous slab between first, second noise elimination chamber, the second, be provided with dividing plate between the 4th noise elimination chamber and between the 3rd, the 4th noise elimination chamber, communicate by air pipe between second, third noise elimination chamber and between the 3rd, the 4th noise elimination chamber, the 4th noise elimination chamber communicates with tailpipe, inner connecting tube rear end tube wall is provided with radially exhaust hole, it is characterized in that:
The indoor madial wall that is close to silencer cylinder of described second noise elimination cavity is provided with inside lining sleeve;
Described inner connecting tube rear end protrudes in the second noise elimination chamber after passing porous slab, and the rearward end of inner connecting tube is provided with the stifle of band air-flow via hole.
2. noise eliminator of motorcycle as claimed in claim 1 is characterized in that: the length of described inner connecting tube is 320～330mm, and external diameter is 23～27mm, and thickness is 1.1～1.3mm.
3. noise eliminator of motorcycle as claimed in claim 1 is characterized in that: be communicated with by an air pipe respectively between described the second, the 4th noise elimination chamber and between the 3rd, the 4th noise elimination chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217003A CN101737121A (en) | 2009-12-21 | 2009-12-21 | Motorcycle sound eliminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217003A CN101737121A (en) | 2009-12-21 | 2009-12-21 | Motorcycle sound eliminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101737121A true CN101737121A (en) | 2010-06-16 |
Family
ID=42461077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910217003A Pending CN101737121A (en) | 2009-12-21 | 2009-12-21 | Motorcycle sound eliminator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101737121A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016102A (en) * | 2012-12-17 | 2013-04-03 | 杨富周 | Silencer for exhaust system of gasoline engine |
| CN103758616A (en) * | 2014-02-20 | 2014-04-30 | 山东申普交通科技有限公司 | Motor vehicle exhaust purifying device |
| CN108952914A (en) * | 2018-06-22 | 2018-12-07 | 力帆实业(集团)股份有限公司 | Exhaust system for motorcycle |
| CN109209566A (en) * | 2018-09-12 | 2019-01-15 | 重庆隆鑫机车有限公司 | A kind of silencer and motorcycle |
-
2009
- 2009-12-21 CN CN200910217003A patent/CN101737121A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016102A (en) * | 2012-12-17 | 2013-04-03 | 杨富周 | Silencer for exhaust system of gasoline engine |
| CN103016102B (en) * | 2012-12-17 | 2015-05-27 | 杨富周 | Silencer for exhaust system of gasoline engine |
| CN103758616A (en) * | 2014-02-20 | 2014-04-30 | 山东申普交通科技有限公司 | Motor vehicle exhaust purifying device |
| CN103758616B (en) * | 2014-02-20 | 2016-01-13 | 赵金博 | Motor-vehicle tail-gas purifying device |
| CN108952914A (en) * | 2018-06-22 | 2018-12-07 | 力帆实业(集团)股份有限公司 | Exhaust system for motorcycle |
| CN109209566A (en) * | 2018-09-12 | 2019-01-15 | 重庆隆鑫机车有限公司 | A kind of silencer and motorcycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100616 |