CN2594469Y - Motorcycle noise silencer - Google Patents
Motorcycle noise silencer Download PDFInfo
- Publication number
- CN2594469Y CN2594469Y CN 03232852 CN03232852U CN2594469Y CN 2594469 Y CN2594469 Y CN 2594469Y CN 03232852 CN03232852 CN 03232852 CN 03232852 U CN03232852 U CN 03232852U CN 2594469 Y CN2594469 Y CN 2594469Y
- Authority
- CN
- China
- Prior art keywords
- expansion chamber
- resonantron
- pipe
- noise
- noise eliminator
- 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.)
- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a motorcycle silencer, the outer parts of an exhaust pipe (1), a throttle pipe (5), and a throttle pipe (5') is covered with a silencer casing (4), and the inner part of which is provided with partitioning plates (9) to form expansion chambers (301), (302), and (303). The utility model is characterized in that the exhaust pipe (1) is connected with a resonance pipe (2), and the throttle pipe (5), the throttle pipe (5'), a resonance pipe (2'), and the resonance pipe (2) are respectively arranged on the partition plates (9) for fixing. The utility model can cause that compared with an expansion chamber type, the noise of a motorcycle engine can be reduced by 4-5 dB (A) and can ensure that the national requirement can be achieved, and the noise pollution can be reduced.
Description
(1). technical field
The utility model belongs to motorcycle field, the particularly a kind of silencing apparatus that can eliminate the motorcycle engine noise.
(2). technical background
At present, reduce the noise elimination of motorcycle engine and adopt the expansion chamber noise elimination structure, this structure is only passed through the expansion chamber noise reduction with noise, be easy to generate error, make the idling noise of motorcycle reach 77-79dB (A) (idling compare test) [following table is shown dB (A)], the acceleration noise is 81-83dB (A), surpasses NBS, causes noise pollution.
(3). summary of the invention
The purpose of this utility model provides a kind of noise eliminator of motorcycle, and it can make the noise of motorcycle engine compare with expansion chamber to reduce 4-5dB (A) can guarantee the requirement that is up to state standards, and reduces noise pollution.
For reaching above-mentioned purpose, the outside shroud muffler shell of the utility model outlet pipe, throttle pipe is provided with dividing plate in the muffler shell, in three expansion chamber of the inner composition of muffler outer hood, it is characterized in that outlet pipe connects resonantron, throttle pipe and resonantron are placed on the dividing plate fixing.
The inwall of expansion chamber is provided with adsorption layer.
Adsorption layer is a porous body.
Gapped between the inside and outside layer of double-deck resonantron.
On the internal layer of double-deck resonantron several holes is arranged, its boring rate is 2-3.5% for the internal layer developed area.
Gap between the inside and outside layer of double-deck resonantron is 5-10mm.
The length of expansion chamber is respectively 205-215mm, 105-115mm and 75-85mm.
The utility model is owing to be provided with resonantron in expansion chamber, when noise passes through resonantron, several holes through its internal layer obtains decay, decay through expansion chamber again, therefore can make the noise of the motorcycle engine reduction 4-5dB (A) that compares with expansion chamber, can guarantee the requirement that is up to state standards, reduce noise pollution.The utility model is simple in structure in addition, the characteristics that cost is low.
Below in conjunction with accompanying drawing the utility model is described further.
(3). description of drawings
Fig. 1 is a structure diagram of the present utility model.
(5). embodiment
Referring to Fig. 1, with outlet pipe 1, throttle pipe 5 and throttle pipe 5 ' outside shroud muffler shell 4, dividing plate 9 is set, in the inner expansion chamber 301,302 and 303 that form of muffler shell 4 in the muffler shell 4.Outlet pipe 1 connects resonantron 2, resonantron 2 and 2 ' be placed on the dividing plate 9 fixing respectively.Resonantron 2 parts are in expansion chamber 301; Resonantron 2 ' the front portion in expansion chamber 303, middle part and rear portion are in expansion chamber 302.Throttle pipe 5 and throttle pipe 5 ' be placed in respectively on the dividing plate 9 and fix, the front portion of throttle pipe 5 is in expansion chamber 301, and the middle part is in expansion chamber 303, and the rear portion is in expansion chamber 302; Throttle pipe 5 ' the front portion in expansion chamber 303, the rear portion is in expansion chamber 302.Resonantron is double-deck, and gapped between its inside and outside layer, the gap is 5-10mm, on the internal layer of resonantron several holes is arranged, and the rate respectively of its boring is the 2-3.5% of internal layer developed area.
When engine operation, the waste gas of motor and noise enter resonantron 2 from outlet pipe 1, enter expansion chamber 301 behind resonantron 2 acoustic energy attenuations, do the attenuation of the first kind noise; Waste gas in the expansion chamber 301 and noise enter expansion chamber 302 through throttle pipe 5 and do attenuation of the second kind noise subsequently; Subsequently waste gas in the expansion chamber 302 and noise through throttle pipe 5 ', enter after expansion chamber 303 does for the third time noise attenuation, enter that resonantron 2 ' noise attenuation is discharged once more.
On the inwall of expansion chamber 302, adsorption layer 8 can also be set, the high frequency noise in the absorption waste gas, adsorption layer 8 is a porous body, to adsorb noise better.
The length of expansion chamber according to the power difference of motor, is set to expansion chamber 301 respectively and is 205-215mm, and expansion chamber 302 is 105-115mm, and expansion chamber 303 is 75-85mm.
Claims (9)
1. noise eliminator of motorcycle, the outside shroud muffler shell (4) of outlet pipe (1), throttle pipe (5) and throttle pipe (5 '), dividing plate (9) is set in the muffler shell (4) forms expansion chamber (301), (302) and (303), it is characterized in that outlet pipe (1) connects resonantron (2), throttle pipe (5), throttle pipe (5 '), resonantron (2 ') and resonantron (2) are placed in dividing plate (9) respectively and go up fixing.
2. noise eliminator of motorcycle according to claim 1 is characterized in that the inwall of expansion chamber (302) is provided with adsorption layer (8).
3. noise eliminator of motorcycle according to claim 2 is characterized in that adsorption layer (8) is a porous body.
4. noise eliminator of motorcycle according to claim 1 is characterized in that between the inside and outside layer of double-deck resonantron gapped.
5. noise eliminator of motorcycle according to claim 1 is characterized in that on the internal layer of double-deck resonantron several holes being arranged, and its boring rate is the 2-3.5% of internal layer developed area.
6. noise eliminator of motorcycle according to claim 5 is characterized in that the gap between the inside and outside layer of double-deck resonantron is 5-10mm.
7. noise eliminator of motorcycle according to claim 1, the length that it is characterized in that expansion chamber (301) is 205-215mm.
8. noise eliminator of motorcycle according to claim 1, the length that it is characterized in that expansion chamber (302) is 105-115mm.
9. noise eliminator of motorcycle according to claim 1, the length that it is characterized in that expansion chamber (303) is 75-85mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232852 CN2594469Y (en) | 2003-01-13 | 2003-01-13 | Motorcycle noise silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232852 CN2594469Y (en) | 2003-01-13 | 2003-01-13 | Motorcycle noise silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2594469Y true CN2594469Y (en) | 2003-12-24 |
Family
ID=33757804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232852 Expired - Fee Related CN2594469Y (en) | 2003-01-13 | 2003-01-13 | Motorcycle noise silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2594469Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603445A (en) * | 2009-07-23 | 2009-12-16 | 重庆隆鑫机车有限公司 | Motorcycle |
| CN103237723A (en) * | 2010-12-08 | 2013-08-07 | 本田技研工业株式会社 | Exhaust device for saddled vehicle |
| CN105604670A (en) * | 2015-11-23 | 2016-05-25 | 重庆秋航机械有限责任公司 | Noise eliminating mechanism of two-wheeled vehicle |
| CN106286310A (en) * | 2016-10-31 | 2017-01-04 | 重庆凌达压缩机有限公司 | A kind of temperature equipment, compressor and compressor silencer |
-
2003
- 2003-01-13 CN CN 03232852 patent/CN2594469Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603445A (en) * | 2009-07-23 | 2009-12-16 | 重庆隆鑫机车有限公司 | Motorcycle |
| CN103237723A (en) * | 2010-12-08 | 2013-08-07 | 本田技研工业株式会社 | Exhaust device for saddled vehicle |
| CN103237723B (en) * | 2010-12-08 | 2015-11-25 | 本田技研工业株式会社 | The exhaust gear of Straddle-type vehicle |
| CN105604670A (en) * | 2015-11-23 | 2016-05-25 | 重庆秋航机械有限责任公司 | Noise eliminating mechanism of two-wheeled vehicle |
| CN106286310A (en) * | 2016-10-31 | 2017-01-04 | 重庆凌达压缩机有限公司 | A kind of temperature equipment, compressor and compressor silencer |
| CN106286310B (en) * | 2016-10-31 | 2019-06-21 | 重庆凌达压缩机有限公司 | A kind of temperature equipment, compressor and compressor silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |