CN102322314A - Spiral baffler - Google Patents
Spiral baffler Download PDFInfo
- Publication number
- CN102322314A CN102322314A CN201110174231A CN201110174231A CN102322314A CN 102322314 A CN102322314 A CN 102322314A CN 201110174231 A CN201110174231 A CN 201110174231A CN 201110174231 A CN201110174231 A CN 201110174231A CN 102322314 A CN102322314 A CN 102322314A
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- CN
- China
- Prior art keywords
- silencing cavity
- volute
- outlet pipe
- spiral
- baffler
- 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
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- Pipe Accessories (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention provides a kind of spiral baffler, is used for various motors, comprises silencing cavity, suction tude, outlet pipe; Said suction tude stretches in the said silencing cavity from the external world, and said suction tude is divided into volute in said silencing cavity inside, is covered with inlet hole on the said volute tube wall, and is lined with the noise reduction cotton on the said volute inner tubal wall; Said silencing cavity internal surface is covered with the noise reduction cotton; Said outlet pipe stretches in the said silencing cavity from the external world, and said outlet pipe stretches into the plug at end part in the said silencing cavity, and said outlet pipe stretches on the tube wall in the said silencing cavity and is covered with exhaust port.This kind baffler had both had comparatively simple chamber structure, and had erasure effect efficiently.
Description
Affiliated technical field
The present invention relates to a kind of silencer, especially, is a kind of spiral baffler that is used for various motors.
Background technique
In the engine exhaust process, gas is gone out relief opening fast, because pressure and speed and ambient air differ greatly, will produce huge noise, therefore, baffler generally all need be installed to reduce noise.
Present baffler mainly includes resistive baffler and resistant noise-reducing device, and resistive baffler mainly utilizes quieter material that sound wave is absorbed, thereby reaches erasure effect; The resistant noise-reducing device mainly makes sound wave reflect and interfere in that muffler chamber is indoor, thereby weakens the sound intensity gradually.
For present resistive baffler, because the frictional heating of quieter material is limited in one's ability, can not fast Absorption acoustic energy; Therefore need increase the area of contact of sound wave and quieter material as much as possible, common way is, the silencing cavity internal structure is complicated; Make silencing cavity be divided into a plurality of chambers, thereby make sound wave interreflection in silencing cavity, and absorbed repeatedly by quieter material; However, because the laying area of quieter material is less, erasure effect is still not good enough.
Summary of the invention
To the problems referred to above, the object of the present invention is to provide a kind of spiral baffler, it had both had comparatively simple chamber structure, and had erasure effect efficiently.
The technical solution adopted for the present invention to solve the technical problems is: this spiral baffler comprises silencing cavity, suction tude, outlet pipe;
Said suction tude stretches in the said silencing cavity from the external world, and said suction tude is divided into volute in said silencing cavity inside, is covered with inlet hole on the said volute tube wall, and is lined with the noise reduction cotton on the said volute inner tubal wall;
Said silencing cavity internal surface is covered with the noise reduction cotton;
Said outlet pipe stretches in the said silencing cavity from the external world, and said outlet pipe stretches into the plug at end part in the said silencing cavity, and said outlet pipe stretches on the tube wall in the said silencing cavity and is covered with exhaust port.
As preferably, the plug at end part in said silencing cavity of said volute, thus air-flow is flowed in the anechoic chamber from said inlet hole only.
As preferably, the gross area of said inlet hole is greater than the caliber of said volute.
As preferably, said volute is straight volute.
As preferably, also be provided with a circle tubular dividing plate outside the said volute, said dividing plate inboard is covered with the noise reduction cotton.
As preferably, the outlet flare of said outlet pipe.
Beneficial effect of the present invention is: this spiral baffler is owing to adopted spiral tube structure, its tube wall to pile up closely on suction tude, and the tube wall gross area is compared to chamber; Can reach very big area; Therefore the noise air-flow can be along in the spiral tube structure flow process of suction tude, by the cotton a large amount of loudness of a sound that absorb of the noise reduction on the volute inner tubal wall, again after said inlet hole inflow silencing cavity; In silencing cavity internal reflection process; By the cotton absorption of the noise reduction of silencing cavity inwall, discharged by outlet pipe at last, this moment, noise was by a large amount of weakenings again.This kind baffler had both had comparatively simple chamber structure, and had erasure effect efficiently.
Description of drawings
Fig. 1 is an embodiment's of this spiral baffler a structural representation.
Fig. 2 is another embodiment's of this spiral baffler a structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Embodiment one
In embodiment illustrated in fig. 1 one, this spiral baffler comprises silencing cavity 1, suction tude 2, outlet pipe 3;
Said suction tude 2 stretches in the said silencing cavity 1 from the external world; And said suction tude 2 is divided into volute 21 in said silencing cavity 1 inside; Said volute 21 is straight volute, is covered with inlet hole 20 on its tube wall, and is lined with noise reduction cotton (not shown) on said volute 21 inner tubal walls;
Said suction tude 2 is fixed on the wallboard of said silencing cavity 1 with welding manner;
Said silencing cavity 1 internal surface is covered with noise reduction cotton (not shown);
Said outlet pipe 3 stretches in the said silencing cavity 1 from the external world; And with said silencing cavity 1 weldering knot; And said outlet pipe 3 stretches into the plug at end part in the said silencing cavity 1, and said outlet pipe 3 stretches on the tube wall in the said silencing cavity 1 and be covered with exhaust port 30, and the noise air-flow in the said silencing cavity 1 is when getting into outlet pipes 3 through said exhaust port 30; Shrink again earlier and expand, further weakened energy.
Above-mentioned spiral baffler, the plug at end part in said silencing cavity 1 of said volute 21, thus make air-flow only in said inlet hole 20 inflow anechoic chambers 1.
Above-mentioned spiral baffler, the gross area of said inlet hole 20 be greater than the caliber of said volute 21, thereby make the noise air-flow through said inlet hole 20 time, has enough expansion spaces.
Above-mentioned spiral baffler, the outlet flare of said outlet pipe 3.
Embodiment two
In embodiment shown in Figure 2 two, be with embodiment one difference: embodiment two also is provided with a circle tubular dividing plate 4 in said volute 21 outsides, said dividing plate 4 inboards are covered with the noise reduction cotton, and this dividing plate 4 is through pole 5 and silencing cavity 1 weldering knot.
After said dividing plate 4 is installed, further increase the reflective surface in the said silencing cavity 1, promptly increased the noise absorption face.
Related spiral baffler is owing to adopted volute 21 structures among the embodiment one, two on suction tude 2, and its tube wall piles up closely, and the tube wall gross area is compared to chamber; Can reach very big area; Therefore the noise air-flow can be along in the volute 21 structure flow process of suction tude 2, by the cotton a large amount of loudness of a sound that absorb of the noise reduction on volute 21 inner tubal walls, again after said inlet hole 20 inflow silencing cavity 1; In silencing cavity 1 internal reflection process; By the cotton absorption of the noise reduction of silencing cavity 1 inwall, discharged by outlet pipe 3 at last, this moment, noise was by a large amount of weakenings again.This kind baffler had both had comparatively simple chamber structure, and had erasure effect efficiently.
Claims (6)
1. a spiral baffler comprises silencing cavity (1), suction tude (2), outlet pipe (3); Said suction tude (2) and outlet pipe (3) all stretch in the said silencing cavity (1) from the external world, it is characterized in that:
Said suction tude (2) is divided into volute (21) in said silencing cavity (1) inside, is covered with inlet hole (20) on said volute (21) tube wall, and is lined with the noise reduction cotton on said volute (21) inner tubal wall;
Said silencing cavity (1) internal surface is covered with the noise reduction cotton;
Said outlet pipe (3) stretches into the plug at end part in the said silencing cavity (1), and said outlet pipe (3) stretches on the tube wall in the said silencing cavity (1) and is covered with exhaust port (30).
2. spiral baffler according to claim 1 is characterized in that: the plug at end part in said silencing cavity (1) of said volute (21).
3. spiral baffler according to claim 1 is characterized in that: the gross area of said inlet hole (20) is greater than the caliber of said volute (21).
4. spiral baffler according to claim 1 is characterized in that: said volute (21) is straight volute.
5. spiral baffler according to claim 4 is characterized in that: said volute (21) outside also is provided with a circle tubular dividing plate (4), and said dividing plate (4) inboard is covered with the noise reduction cotton.
6. spiral baffler according to claim 1 is characterized in that: the outlet flare of said outlet pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110174231A CN102322314A (en) | 2011-06-27 | 2011-06-27 | Spiral baffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110174231A CN102322314A (en) | 2011-06-27 | 2011-06-27 | Spiral baffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102322314A true CN102322314A (en) | 2012-01-18 |
Family
ID=45450125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110174231A Pending CN102322314A (en) | 2011-06-27 | 2011-06-27 | Spiral baffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102322314A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716985A (en) * | 2018-04-03 | 2018-10-30 | 无锡威孚力达催化净化器有限责任公司 | A kind of sound source modeling test device |
| CN108843434A (en) * | 2018-06-08 | 2018-11-20 | 蒙城县傲尊电子科技有限公司 | A kind of automobile exhaust pipe sound-deadening and noise-reducing device |
| CN112435831A (en) * | 2020-11-13 | 2021-03-02 | 广东电网有限责任公司 | Transformer silencing base |
| CN112647586A (en) * | 2020-12-28 | 2021-04-13 | 重庆第二师范学院 | Industry tourism sightseeing passageway with safety protection |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1399324A (en) * | 1963-06-25 | 1965-05-14 | Boa Verwertungs A G | Sound damper applicable to exhaust pipes of internal combustion engines for motor vehicles |
| JPS5027404U (en) * | 1973-07-04 | 1975-03-29 | ||
| CN2052048U (en) * | 1989-04-22 | 1990-01-31 | 白尚玉 | Vehicle muffler with pollutionproof and fireproof functions |
| CN2428575Y (en) * | 2000-06-16 | 2001-05-02 | 阮瑞平 | Exhausting silencer |
| CN201184226Y (en) * | 2008-04-14 | 2009-01-21 | 贾永康 | Automobile energy-saving silencer |
| CN201474757U (en) * | 2009-07-16 | 2010-05-19 | 薛万里 | Environment-friendly spiral tail gas exhaust pipe |
| CN102071998A (en) * | 2011-01-14 | 2011-05-25 | 重庆长安汽车股份有限公司 | Muffling tail pipe with decorative pipe |
-
2011
- 2011-06-27 CN CN201110174231A patent/CN102322314A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1399324A (en) * | 1963-06-25 | 1965-05-14 | Boa Verwertungs A G | Sound damper applicable to exhaust pipes of internal combustion engines for motor vehicles |
| JPS5027404U (en) * | 1973-07-04 | 1975-03-29 | ||
| CN2052048U (en) * | 1989-04-22 | 1990-01-31 | 白尚玉 | Vehicle muffler with pollutionproof and fireproof functions |
| CN2428575Y (en) * | 2000-06-16 | 2001-05-02 | 阮瑞平 | Exhausting silencer |
| CN201184226Y (en) * | 2008-04-14 | 2009-01-21 | 贾永康 | Automobile energy-saving silencer |
| CN201474757U (en) * | 2009-07-16 | 2010-05-19 | 薛万里 | Environment-friendly spiral tail gas exhaust pipe |
| CN102071998A (en) * | 2011-01-14 | 2011-05-25 | 重庆长安汽车股份有限公司 | Muffling tail pipe with decorative pipe |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716985A (en) * | 2018-04-03 | 2018-10-30 | 无锡威孚力达催化净化器有限责任公司 | A kind of sound source modeling test device |
| CN108843434A (en) * | 2018-06-08 | 2018-11-20 | 蒙城县傲尊电子科技有限公司 | A kind of automobile exhaust pipe sound-deadening and noise-reducing device |
| CN112435831A (en) * | 2020-11-13 | 2021-03-02 | 广东电网有限责任公司 | Transformer silencing base |
| CN112435831B (en) * | 2020-11-13 | 2022-03-29 | 广东电网有限责任公司 | Transformer silencing base |
| CN112647586A (en) * | 2020-12-28 | 2021-04-13 | 重庆第二师范学院 | Industry tourism sightseeing passageway with safety protection |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |