CN103982271B - Balanced baffler - Google Patents
Balanced baffler Download PDFInfo
- Publication number
- CN103982271B CN103982271B CN201410230083.3A CN201410230083A CN103982271B CN 103982271 B CN103982271 B CN 103982271B CN 201410230083 A CN201410230083 A CN 201410230083A CN 103982271 B CN103982271 B CN 103982271B
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- Prior art keywords
- chamber
- suction tude
- outlet pipe
- wave
- barrier sheet
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Abstract
The invention discloses a kind of balanced baffler, comprise arrange successively the first chamber, main chamber, the second chamber, main chamber is cylinder, the first chamber barrier sheet is provided with between first chamber and main chamber, the second chamber barrier sheet is provided with between second chamber and main chamber, also comprise suction tude and outlet pipe, the suction tude part be in main chamber comprises the suction tude one wave part that a section bends to wave-like, suction tude one wave part has staggered suction tude exhaust port.Technical problem to be solved by this invention is to provide a kind of balanced baffler, the multiple chamber of this balanced silencer structure increases the resistances to acoustic wave energy, transform the air stream turbulence circulation of baffler inside, outlet pipe noise volume is effectively reduced by multiple means, and for automobile low frequency noise (100-150Hz), intermediate frequency noise (200-500Hz), the equilibrium of high frequency noise (more than 1kHz) noise reduction.
Description
Technical field
The invention belongs to vehicle muffler field, relate to a kind of balanced baffler.
Background technique
Can produce quite huge noise in motor-driven vehicle going, on automobile exhaust pipe, usually install baffler additional is a kind of effective noise abatement means, and the inner noise-reducing structure design of good baffler is for the erasure effect important in inhibiting of baffler.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of balanced baffler, the multiple chamber of this balanced silencer structure increases the resistances to acoustic wave energy, transform the air stream turbulence circulation of baffler inside, on the path of turbulent circulation, installed noise elimination structure additional simultaneously, outlet pipe noise volume is effectively reduced by multiple means, and for automobile low frequency noise (100-150Hz), intermediate frequency noise (200-500Hz), the equilibrium of high frequency noise (more than 1kHz) noise reduction.
The present invention's adopted technological scheme that solves the problem is:
Comprise arrange successively the first chamber, main chamber, the second chamber, main chamber is cylinder, the first chamber barrier sheet is provided with between first chamber and main chamber, the second chamber barrier sheet is provided with between second chamber and main chamber, above-mentioned barrier sheet is all for ensureing that the sealing between chamber cuts off, also comprise suction tude and outlet pipe
Suction tude passes through the first chamber, the first chamber barrier sheet, main chamber, the second chamber barrier sheet successively from the first chamber, suction tude is fixed on the second chamber barrier sheet by suction tude end cap, the suction tude part be in the first chamber is pipe, the suction tude part be in main chamber comprises the suction tude one wave part that a section bends to wave-like, wavyly be the curve shape comprising some crests and trough interphase distribution, suction tude one wave part has staggered suction tude exhaust port
Outlet pipe passes through the second chamber, the second chamber barrier sheet, main chamber, the first chamber barrier sheet successively from the second chamber, outlet pipe is fixed on the first chamber barrier sheet by outlet pipe end cap, the outlet pipe part be in the second chamber is pipe, the outlet pipe part be in main chamber comprises the outlet pipe one wave part that a section bends to wave-like, outlet pipe one wave part has staggered outlet pipe inlet hole
Described suction tude one wave part and outlet pipe one wave part are about main chamber's axisymmetrical, the corresponding outlet pipe one wave part of described main chamber and suction tude one wave part crest, wave trough position is also provided with the long isolating plate of ring-type and short isolating plate, wherein long isolating plate is clearly arranged on wave trough position, short isolating plate is arranged on crest location, Wave crest and wave trough divides according to the distance relative to axis, long isolating plate, short isolating plate does not all contact outlet pipe, suction tude, described long isolating plate, short isolating plate both sides are provided with multiple resistance sound projection, resistance sound projection is made up of quieter material, preferably be made up of cladding material.
The noise reduction principle of the basic scheme of above-mentioned multi-cavity baffler: 1, first chamber barrier sheet, muffler cavity is divided into the first chamber by the second chamber barrier sheet, main chamber, second chamber, air-flow enters in baffler successively by the first chamber from suction tude, main chamber, second chamber, then from the second chamber, enter outlet pipe derive, suction tude, outlet pipe is in the one wave part in cavity has staggered suction tude exhaust port, outlet pipe inlet hole realizes the abundant circulation of air-flow and chamber, by being greater than the main chamber of tracheae caliber, first, second chamber forms resistant noise-reducing structure, resistant noise-reducing structure is the basic noise-reducing structure of one of baffler, is prior art noun, produces the waveform disappeared mutually with incoming wave reduce acoustic wave energy by the cavity body structure of certain nested airflow line, 2, by the structure of tracheae one wave part and the setting of length baffles, form the local turbulence in the chamber of air-flow between length baffles, the schematic diagram of local turbulence circulation as shown by the arrows in Figure 1, each local turbulence is prolonged at the energy by resistant noise-reducing process loss sound wave, thus forms multistage noise-reducing structure, be on the path of local turbulence by the resistance sound projection that isolating plate is arranged, thus the energy further consuming sound wave strengthens the erasure effect of every one-level chamber, the setting of cladding material avoids the extra assembly department arranged increases complexity.In addition, first, second chamber also contributes to the buffer function of air-flow, and in addition, first, second chamber also contributes to the buffer function of air-flow.
Further, the profile of the first chamber, the second chamber is frustum, and bottom surface larger in the first chamber, the second chamber is adjacent with the cylinder two ends of main chamber respectively.The frustoconical construction of the first chamber, the second chamber can eliminate the high-frequency noise that high velocity air impacts the first chamber, the second chamber sidewall produces, but is merely and preferably constructs, and the chamber configuration of cylinder can use equally, should not be excluded outside protection domain.
Further, described resistance sound projection is divided into some groups and is arranged on isolating plate, and often group resistance sound projection is radially arranged.This is the arrangement of preferred resistance sound projection.
Further, the quantity of the crest in suction tude one wave part is at 3-8.Outlet pipe one wave part and suction tude one wave part are symmetrical, and quantity is identical, and then local turbulence is too urgent brings destabilizing factor more than 8 for quantity, and high frequency erasure effect is deteriorated simultaneously, and excessively poor lower than three local turbulence effects then formed, overall erasure effect is bad.
To sum up, the invention has the beneficial effects as follows:
The multiple chamber of this balanced silencer structure increases the resistances to acoustic wave energy, transform the air stream turbulence circulation of baffler inside, on the path of turbulent circulation, installed noise elimination structure additional simultaneously, outlet pipe noise volume is effectively reduced by multiple means, and 7.3dB, 8.1dB, 9.8dB are respectively, Be very effective, equilibrium for automobile low frequency noise (100-150Hz), intermediate frequency noise (200-500Hz), the average noise reduction of high frequency noise (more than 1kHz).
Accompanying drawing explanation
Fig. 1 is the transverse cross-sectional view of balanced baffler of the present invention;
Fig. 2 is the right pseudosection in balanced baffler A-A place of the present invention.
Mark and corresponding component title in accompanying drawing:
The short isolating plate 53-of 10-first chamber 11-first chamber barrier sheet 20-second cavity 21-second chamber barrier sheet 30-suction tude 31-suction tude one wave part 311-suction tude exhaust port 32-suction tude end cap 40-outlet pipe 41-outlet pipe one wave part 411-outlet pipe inlet hole 42-outlet pipe end cap 50-main chamber 51-long isolating plate 52-hinders sound projection.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Be illustrated in figure 1 the transverse cross-sectional view of balanced baffler of the present invention, comprise the first chamber 10, main chamber 50, second chamber 20 of arranging successively, main chamber is cylinder, the first chamber barrier sheet 11 is provided with between first chamber and main chamber, the second chamber barrier sheet 21 is provided with between second chamber and main chamber, above-mentioned barrier sheet all cuts off for the sealing between chamber, also comprises suction tude 30 and outlet pipe 40
Suction tude 30 passes through the first chamber, the first chamber barrier sheet, main chamber, the second chamber barrier sheet successively from the first chamber, suction tude 30 is fixed on the second chamber barrier sheet by suction tude end cap 32, suction tude 30 part be in the first chamber is pipe, suction tude 30 part be in main chamber comprises the suction tude one wave part 31 that a section bends to wave-like, wavyly be the curve shape comprising some crests and trough interphase distribution, suction tude one wave part has staggered suction tude exhaust port 311
Outlet pipe 40 passes through the second chamber, the second chamber barrier sheet, main chamber, the first chamber barrier sheet successively from the second chamber, outlet pipe 40 is fixed on the first chamber barrier sheet by outlet pipe end cap 42, outlet pipe 40 part be in the second chamber is pipe, outlet pipe 40 part be in main chamber comprises the outlet pipe one wave part 41 that a section bends to wave-like, outlet pipe one wave part has staggered outlet pipe inlet hole 411
Described suction tude one wave part and outlet pipe one wave part are about main chamber's axisymmetrical, the corresponding outlet pipe one wave part of described main chamber and suction tude one wave part crest, wave trough position is also provided with the long isolating plate 51 of ring-type and short isolating plate 52, wherein long isolating plate is clearly arranged on wave trough position, short isolating plate is arranged on crest location, Wave crest and wave trough divides according to the distance relative to axis, long isolating plate, short isolating plate does not all contact outlet pipe, suction tude, described long isolating plate 51, short isolating plate 52 both sides are provided with multiple resistance sound projection 53, resistance sound projection is made up of quieter material, preferably be made up of cladding material.
The noise reduction principle of the basic scheme of above-mentioned multi-cavity baffler: 1, first chamber barrier sheet, muffler cavity is divided into the first chamber by the second chamber barrier sheet, main chamber, second chamber, air-flow enters in baffler successively by the first chamber from suction tude, main chamber, second chamber, then from the second chamber, enter outlet pipe derive, suction tude, outlet pipe is in the one wave part in cavity has staggered suction tude exhaust port, outlet pipe inlet hole realizes the abundant circulation of air-flow and chamber, by being greater than the main chamber of tracheae caliber, first, second chamber forms resistant noise-reducing structure, resistant noise-reducing structure is the basic noise-reducing structure of one of baffler, is prior art noun, produces the waveform disappeared mutually with incoming wave reduce acoustic wave energy by the cavity body structure of certain nested airflow line, 2, by the structure of tracheae one wave part and the setting of length baffles, form the local turbulence in the chamber of air-flow between length baffles, the schematic diagram of local turbulence circulation as shown by the arrows in Figure 1, each local turbulence is prolonged at the energy by resistant noise-reducing process loss sound wave, thus forms multistage noise-reducing structure, be on the path of local turbulence by the resistance sound projection that isolating plate is arranged, thus the energy further consuming sound wave strengthens the erasure effect of every one-level chamber, the setting of cladding material avoids the extra assembly department arranged increases complexity.In addition, first, second chamber also contributes to the buffer function of air-flow, and in addition, first, second chamber also contributes to the buffer function of air-flow.
The profile of described first chamber 10, second chamber 20 is frustum, and bottom surface larger in the first chamber, the second chamber is adjacent with the cylinder two ends of main chamber respectively.The frustoconical construction of the first chamber, the second chamber can eliminate the high-frequency noise that high velocity air impacts the first chamber, the second chamber sidewall produces, but is merely and preferably constructs, and the chamber configuration of cylinder can use equally, should not be excluded outside protection domain.
Fig. 2 is the right pseudosection in balanced baffler A-A place of the present invention, i.e. long isolating plate place sectional drawing, and described resistance sound projection 53 is divided into some groups and is arranged on isolating plate, and often group resistance sound projection is radially arranged.This is the arrangement of preferred resistance sound projection.
The quantity of the crest in suction tude one wave part 31 is at 3-8.Then local turbulence is too urgent brings destabilizing factor more than 8 for quantity, and high frequency erasure effect is deteriorated simultaneously, and excessively poor lower than three local turbulence effects then formed, overall erasure effect is bad.
To sum up, the invention has the beneficial effects as follows:
The multiple chamber of this balanced silencer structure increases the resistances to acoustic wave energy, transform the air stream turbulence circulation of baffler inside, on the path of turbulent circulation, installed noise elimination structure additional simultaneously, outlet pipe noise volume is effectively reduced by multiple means, and 7.3dB, 8.1dB, 9.8dB are respectively, Be very effective, equilibrium for automobile low frequency noise (100-150Hz), intermediate frequency noise (200-500Hz), the average noise reduction of high frequency noise (more than 1kHz).
As mentioned above, the present invention can be realized preferably.
Claims (1)
1. a balanced baffler, it is characterized in that, comprise arrange successively the first chamber (10), main chamber (50), the second chamber (20), main chamber is cylinder, be provided with the first chamber barrier sheet (11) between first chamber and main chamber, be provided with the second chamber barrier sheet (21) between the second chamber and main chamber, above-mentioned barrier sheet is all for ensureing that the sealing between chamber cuts off, also comprise suction tude (30) and outlet pipe (40)
Suction tude (30) passes through the first chamber successively from the first chamber, first chamber barrier sheet, main chamber, second chamber barrier sheet, suction tude (30) is fixed on the second chamber barrier sheet by suction tude end cap (32), suction tude (30) part be in the first chamber is pipe, suction tude (30) part be in main chamber comprises the suction tude one wave part (31) that a section bends to wave-like, suction tude one wave part has staggered suction tude exhaust port (311), outlet pipe (40) passes through the second chamber successively from the second chamber, second chamber barrier sheet, main chamber, first chamber barrier sheet, outlet pipe (40) is fixed on the first chamber barrier sheet by outlet pipe end cap (42), outlet pipe (40) part be in the second chamber is pipe, outlet pipe (40) part be in main chamber comprises the outlet pipe one wave part (41) that a section bends to wave-like, outlet pipe one wave part has staggered outlet pipe inlet hole (411), described suction tude one wave part and outlet pipe one wave part are about main chamber's axisymmetrical, the corresponding outlet pipe one wave part of described main chamber and suction tude one wave part crest, wave trough position is also provided with the long isolating plate (51) of ring-type and short isolating plate (52), long isolating plate, short isolating plate does not all contact outlet pipe, suction tude, described long isolating plate (51), short isolating plate (52) both sides are provided with multiple resistance sound projection (53), the profile of the first chamber (10), the second chamber (20) is frustum, and bottom surface larger in the first chamber, the second chamber is adjacent with the cylinder two ends of main chamber respectively, described resistance sound projection (53) is divided into some groups and is arranged on isolating plate, and often group resistance sound projection is radially arranged, the quantity of the crest in suction tude one wave part is at 3-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230083.3A CN103982271B (en) | 2014-05-28 | 2014-05-28 | Balanced baffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230083.3A CN103982271B (en) | 2014-05-28 | 2014-05-28 | Balanced baffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103982271A CN103982271A (en) | 2014-08-13 |
| CN103982271B true CN103982271B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410230083.3A Expired - Fee Related CN103982271B (en) | 2014-05-28 | 2014-05-28 | Balanced baffler |
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| CN (1) | CN103982271B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847451A (en) * | 2015-04-11 | 2015-08-19 | 成都陵川特种工业有限责任公司 | Automobile silencer |
| CN106014545B (en) * | 2016-06-30 | 2019-09-24 | 泉州市知产茂业工业设计有限公司 | A kind of engine muffler |
| CN107165697A (en) * | 2017-07-07 | 2017-09-15 | 爱驰威汽车零部件（盐城）有限公司 | A kind of automobile muffler |
| CN110182349B (en) * | 2019-07-01 | 2024-01-05 | 北部湾大学 | Power system of dual-fuel power propulsion cargo ship |
| CN110296003B (en) * | 2019-07-01 | 2022-06-14 | 北部湾大学 | Cargo ship dual-fuel engine control system |
| CN111664120A (en) * | 2020-06-18 | 2020-09-15 | 德耐尔节能科技（上海）股份有限公司 | Permanent magnet synchronous high-speed centrifugal oil-free air compressor |
| CN113363837A (en) * | 2021-05-13 | 2021-09-07 | 南京纳新自动化设备有限公司 | PLC (programmable logic controller) automatic control cabinet and control method |
| CN113818950B (en) * | 2021-08-04 | 2022-08-30 | 宁波亿超消音科技有限公司 | Silencer capable of purifying gas |
| CN114033893B (en) * | 2022-01-06 | 2022-03-25 | 成都成高阀门有限公司 | Exhaust silencing device of quick-opening valve and using method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448929Y (en) * | 2000-11-22 | 2001-09-19 | 李垠亿 | Direct through energy-saving silencer for internal combustion engine exhausting |
| CN201474757U (en) * | 2009-07-16 | 2010-05-19 | 薛万里 | Environment-friendly spiral tail gas exhaust pipe |
| KR20120005917A (en) * | 2010-07-09 | 2012-01-17 | 김상욱 | Silencer of internal combustion engine |
| CN202431336U (en) * | 2012-01-11 | 2012-09-12 | 比亚迪股份有限公司 | Automotive exhaust silencer |
| CN103195549B (en) * | 2013-04-28 | 2015-11-18 | 广西工学院 | A kind of silencer muffler partition plate and silencing apparatus |
| CN203847205U (en) * | 2014-05-28 | 2014-09-24 | 成都陵川特种工业有限责任公司 | Multi-cavity silencer |
-
2014
- 2014-05-28 CN CN201410230083.3A patent/CN103982271B/en not_active Expired - Fee Related
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| CN103982271A (en) | 2014-08-13 |
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Granted publication date: 20160203 Termination date: 20160528 |