CN103982272A - Straight-through type three-cavity silencer - Google Patents
Straight-through type three-cavity silencer Download PDFInfo
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- CN103982272A CN103982272A CN201410230487.2A CN201410230487A CN103982272A CN 103982272 A CN103982272 A CN 103982272A CN 201410230487 A CN201410230487 A CN 201410230487A CN 103982272 A CN103982272 A CN 103982272A
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Abstract
The invention discloses a straight-through type three-cavity silencer. The straight-through type three-cavity silencer comprises a silencer barrel, an air flow pipeline, a first cavity partition and a second cavity partition, wherein the air flow pipeline is provided with an air inlet end and an air exhaust end, the slicer barrel is partitioned into three cavities by the first cavity partition and the second cavity partition, a plurality of interlayer partitions are arranged in each of the three cavities, a resistive silencing layer is arranged in the middle of each interlayer partition, each cavity is partitioned into sub-cavities which form a cavity group by the interlayer partitions, the air flow pipeline penetrates the cavity groups sequentially, and parts, of the air flow pipeline, in the cavity groups are provided with a plurality of breathing holes which are distributed in a staggered manner. The straight-through type three-cavity silencer has the advantages that except for resistive silencing formed by original destructive interference, the resistive silencing layers are further subjected to noise reduction, effects of the resistive silencing layers are enhanced by a naturally formed airflow-circulating path with partial turbulences, the effect of noise reduction is more significant, and the straight-through type three-cavity silencer is simple in structure, stable and beneficial to radiating.
Description
Technical field
The present invention relates to a kind of straight-through type three chamber bafflers.
Background technique
In motor-driven vehicle going, can produce quite huge noise; conventionally on automobile exhaust pipe, installing baffler additional is a kind of effectively noise abatement means; resistant noise-reducing is a kind of important design of muffler thinking at present; and conventionally can adopt multi-cavity cascade-connection to strengthen erasure effect; its air-flow path is single, and the noise reduction utilization ratio of cavity, noise reduction still leave some room for improvement.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of straight-through type three chamber bafflers, these straight-through type three chamber bafflers are on the basis of basic resistant noise-reducing device, improve the structural type in resistance chamber, increase tab configurations, be provided with point chamber and resistive noise-reducing structure, form knockdown noise-reducing structure, improved chamber utilization ratio and noise reduction; The metal layer of fin helps the noise reduction layer and the cylindrical shell that have absorbed acoustic wave energy more effectively to dispel the heat effectively simultaneously.
The present invention addresses the above problem adopted technological scheme:
Comprise baffler cylindrical shell, with the airflow line of inlet end and exhaust end, described airflow line is across baffler cylindrical shell, also comprise the first chamber dividing plate, the second chamber dividing plate, described the first chamber dividing plate, baffler cylindrical shell is divided into the first chamber group by the second chamber dividing plate, the second chamber group, the 3rd chamber group, in described three chamber groups, be provided with multiple interlayer dividing plates, the metal partion (metp) that described interlayer dividing plate is two individual layers is separated out a layer slot and forms, described layer slot is resistive noise reduction layer, described interlayer dividing plate connects air-flow path outer wall and baffler cylinder inboard wall, installation direction is that dividing plate plane is parallel with baffler cylindrical shell axial direction, described multiple interlayer dividing plate is divided into each chamber component by multiple sub-chamber and forms, the quantity of the sub-chamber of described chamber group is consistent with the quantity of interlayer dividing plate, baffler cylindrical shell integral sealing,
The chamber group that airflow line passes through to exhaust end successively from the inlet end of airflow line is the first chamber group, the second chamber group, the 3rd chamber group, and the part of airflow line in each chamber group all has several staggered spiracles.
The principle of the basic scheme of the invention described above and effect are for these straight-through type three chamber bafflers by arranging the first chamber dividing plate in baffler cylindrical shell, baffler cylindrical shell is divided into three chamber groups by the second chamber dividing plate, in the first chamber group, the second chamber group, in the 3rd chamber group, increase interlayer dividing plate, the middle part of airflow line in each chamber group is communicated with suction port and relief opening, form the air flow path of straight-through type, the position of described multiple interlayer dividing plate on cylindrical shell and direction arrange each chamber component are divided into by multiple sub-chamber that arrange at circumferencial direction and are formed, spiracle is set on airflow line and ensures that straight-through type air flow path overdraught can effectively enter sub-chamber the fully circulation in chamber group, in multiple sub-chamber of acoustic wave energy in three chamber groups, produce the reflective sound wave offseting with incident acoustic wave and reduce noise with resistant noise-reducing, and the position of interlayer dividing plate reality after chamber is separated has changed the local turbulence direction of air-flow, the further noise reduction of resistive noise reduction layer also being arranged in interlayer dividing plate in the turbulent flow circulation of air-flow in each sub-chamber, the air ring of the local turbulence of self-assembling formation is pressed close to noise reduction layer around the path more, strengthen resistive noise reduction layer effect, therefore the summation of the erasure effect of sub-chamber has improved the erasure effect of resistant noise-reducing device structure originally, actual measurement noise reduction is according to sound wave frequency range difference, have more 0.5-1.2dB, effect to low frequency noise reduction is more outstanding, in addition, simple in structure, stable, the metal layer of fin helps acoustic wave energy to enter that noise reduction layer is absorbed and cylindrical shell more effectively dispels the heat effectively.
Further, the quantity of the interlayer dividing plate in each chamber is 4-6 piece.The quantity of chamber dividing plate is preferred quantity; ensure overall noise reduction effective lifting and make absorb frequency characteristic more balanced; the dividing plate of chamber shown in figure quantity is 5; it is only a kind of mode of execution; be easy to the implementation of the chamber of expecting 4-6 piece or other quantity, all should belong to protection scope of the present invention.
Further, the first chamber dividing plate between described the first chamber group and the second chamber group is recessed to form the first spacing convave trough with respect to baffler cylinder body outer wall, and the second chamber dividing plate between described the second chamber group and the 3rd chamber group is recessed to form the second spacing convave trough with respect to baffler cylinder body outer wall.Spacing convave trough is annular, and clamping of convenient test placed and installed.
Brief description of the drawings
Fig. 1 is the straight-through type three chamber baffler embodiments' 1 of the present invention left pseudosection in A-A place;
Fig. 2 is the straight-through type three chamber baffler embodiments' 1 of the present invention right pseudosection in B-B place.
Mark and corresponding component title in accompanying drawing:
The resistive noise reduction layer of 10-baffler cylindrical shell 11-first chamber dividing plate 11t-first spacing convave trough 12-second chamber dividing plate 12t-the second spacing convave trough 13-interlayer dividing plate 14-21-first chamber group 22-the second chamber group 23-the 3rd chamber group 30-airflow line 31-inlet end 32-exhaust end 33-spiracle.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiments of the invention 1 are, as Fig. 1, shown in Fig. 2, comprise baffler cylindrical shell 10, airflow line 30 with inlet end 31 with exhaust end 32, described airflow line is across baffler cylindrical shell, also comprise the first chamber dividing plate 11, the second chamber dividing plate 12, described the first chamber dividing plate, baffler cylindrical shell is divided into the first chamber group 21 by the second chamber dividing plate, the second chamber group 22, the 3rd chamber group 23, in described three chamber groups, be provided with multiple interlayer dividing plates 13, the metal partion (metp) that described interlayer dividing plate is two individual layers is separated out a layer slot and forms, described layer slot is resistive noise reduction layer 14, described interlayer dividing plate connects air-flow path 30 outer walls and baffler cylinder inboard wall, installation direction is that dividing plate plane is parallel with baffler cylindrical shell axial direction, described interlayer dividing plate 13 is divided into each chamber component by multiple sub-chamber and forms, the quantity of the sub-chamber of described chamber group is consistent with the quantity of interlayer dividing plate, baffler cylindrical shell integral sealing,
The chamber group that airflow line passes through to exhaust end successively from the inlet end of airflow line 30 is the first chamber group 21, the second chamber groups 22, the 3rd chamber group 23, and the part of airflow line 30 in each chamber group all has several staggered spiracles 33.
The principle of the basic scheme of the invention described above and effect are for these straight-through type three chamber bafflers by arranging the first chamber dividing plate in baffler cylindrical shell, baffler cylindrical shell is divided into three chamber groups by the second chamber dividing plate, in the first chamber group, the second chamber group, in the 3rd chamber group, increase interlayer dividing plate, the middle part of airflow line in each chamber group is communicated with suction port and relief opening, form the air flow path of straight-through type, the position of described multiple interlayer dividing plate on cylindrical shell and direction arrange each chamber component are divided into by multiple sub-chamber that arrange at circumferencial direction and are formed, spiracle is set on airflow line and ensures that straight-through type air flow path overdraught can effectively enter sub-chamber the fully circulation in chamber group, in multiple sub-chamber of acoustic wave energy in three chamber groups, produce the reflective sound wave offseting with incident acoustic wave and reduce noise with resistant noise-reducing, and the position of interlayer dividing plate reality after chamber is separated has changed the local turbulence direction of air-flow, the further noise reduction of resistive noise reduction layer also being arranged in interlayer dividing plate in the turbulent flow circulation of air-flow in each sub-chamber, the air ring of the local turbulence of self-assembling formation is pressed close to noise reduction layer around the path more, strengthen resistive noise reduction layer effect, therefore the summation of the erasure effect of sub-chamber has improved the erasure effect of resistant noise-reducing device structure originally, actual measurement noise reduction is according to sound wave frequency range difference, have more 0.5-1.2dB, effect to low frequency noise reduction is more outstanding, in addition, simple in structure, stable, the metal layer of fin helps acoustic wave energy to enter that noise reduction layer is absorbed and cylindrical shell more effectively dispels the heat effectively.
The quantity of the interlayer dividing plate in each chamber is 4-6 piece.The quantity of chamber dividing plate is preferred quantity; ensure overall noise reduction effective lifting and make absorb frequency characteristic more balanced; the dividing plate of chamber shown in figure quantity is 5; it is only a kind of mode of execution; be easy to the implementation of the chamber of expecting 4-6 piece or other quantity, all should belong to protection scope of the present invention.
The first chamber dividing plate between described the first chamber group and the second chamber group is recessed to form the first spacing convave trough 11t with respect to baffler cylinder body outer wall, and the second chamber dividing plate between described the second chamber group and the 3rd chamber group is recessed to form the second spacing convave trough 12t with respect to baffler cylinder body outer wall.Spacing convave trough is annular, and clamping of convenient test placed and installed.
As mentioned above, can realize preferably the present invention.
Claims (3)
1. straight-through type three chamber bafflers, it is characterized in that, comprise baffler cylindrical shell (10), airflow line (30) with inlet end (31) with exhaust end (32), described airflow line is across baffler cylindrical shell, also comprise the first chamber dividing plate (11), the second chamber dividing plate (12), described the first chamber dividing plate, baffler cylindrical shell is divided into the first chamber group (21) by the second chamber dividing plate, the second chamber group (22), the 3rd chamber group (23), in described three chamber groups, be provided with multiple interlayer dividing plates (13), the metal partion (metp) that described interlayer dividing plate is two individual layers is separated out a layer slot and forms, described layer slot is resistive noise reduction layer (14), described interlayer dividing plate connects air-flow path (30) outer wall and baffler cylinder inboard wall, installation direction is that dividing plate plane is parallel with baffler cylindrical shell axial direction, described interlayer dividing plate (13) is divided into each chamber component by multiple sub-chamber and forms, the quantity of the sub-chamber of described chamber group is consistent with the quantity of interlayer dividing plate, baffler cylindrical shell integral sealing,
The chamber group that airflow line passes through to exhaust end successively from the inlet end of airflow line (30) is the first chamber group (21), the second chamber group (22), the 3rd chamber group (23), the part of airflow line (30) in each chamber group all has several staggered spiracles (33).
2. straight-through type three chamber bafflers as claimed in claim 1, are further characterized in that, the quantity of the interlayer dividing plate in each chamber is 4-6 piece.
3. straight-through type three chamber bafflers according to claim 1, be further characterized in that, the first chamber dividing plate between described the first chamber group and the second chamber group is recessed to form the first spacing convave trough (11t) with respect to baffler cylinder body outer wall, and the second chamber dividing plate between described the second chamber group and the 3rd chamber group is recessed to form the second spacing convave trough (12t) with respect to baffler cylinder body outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230487.2A CN103982272B (en) | 2014-05-28 | 2014-05-28 | Through type three chamber deafener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230487.2A CN103982272B (en) | 2014-05-28 | 2014-05-28 | Through type three chamber deafener |
Publications (2)
| Publication Number | Publication Date |
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| CN103982272A true CN103982272A (en) | 2014-08-13 |
| CN103982272B CN103982272B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410230487.2A Expired - Fee Related CN103982272B (en) | 2014-05-28 | 2014-05-28 | Through type three chamber deafener |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110922220A (en) * | 2019-11-18 | 2020-03-27 | 蒋为民 | Air duct, oxygen-adding type wet garbage fermentation platform and wet garbage treatment system |
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
| CN112555072A (en) * | 2020-12-08 | 2021-03-26 | 安徽江淮汽车集团股份有限公司 | Amortization structure and car |
| CN113265860A (en) * | 2021-04-16 | 2021-08-17 | 安徽舒森定制家居有限公司 | Intelligent clothes airing device with drying function |
| WO2023124300A1 (en) * | 2021-12-29 | 2023-07-06 | 中车大连机车研究所有限公司 | Emptying silencer of magnetic suspension air blower for sewage treatment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2382107A (en) * | 1999-12-09 | 2003-05-21 | Komatsu Mfg Co Ltd | I.c. engine exhaust silencer |
| US20030136607A1 (en) * | 2001-12-19 | 2003-07-24 | Noriyuki Kawamata | Exhaust apparatus for vehicle |
| DE202006012949U1 (en) * | 2006-08-23 | 2007-12-27 | Mann + Hummel Gmbh | Silencer for an internal combustion engine |
| CN101821487A (en) * | 2007-08-08 | 2010-09-01 | 日野自动车株式会社 | Exhaust purification apparatus |
| CN202659317U (en) * | 2012-06-19 | 2013-01-09 | 宿迁宏鼎汽车配件制造有限公司 | Heat exchange device capable of using automobile exhaust |
| CN203847224U (en) * | 2014-05-28 | 2014-09-24 | 成都陵川特种工业有限责任公司 | Combined muffler |
-
2014
- 2014-05-28 CN CN201410230487.2A patent/CN103982272B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2382107A (en) * | 1999-12-09 | 2003-05-21 | Komatsu Mfg Co Ltd | I.c. engine exhaust silencer |
| US20030136607A1 (en) * | 2001-12-19 | 2003-07-24 | Noriyuki Kawamata | Exhaust apparatus for vehicle |
| DE202006012949U1 (en) * | 2006-08-23 | 2007-12-27 | Mann + Hummel Gmbh | Silencer for an internal combustion engine |
| CN101821487A (en) * | 2007-08-08 | 2010-09-01 | 日野自动车株式会社 | Exhaust purification apparatus |
| CN202659317U (en) * | 2012-06-19 | 2013-01-09 | 宿迁宏鼎汽车配件制造有限公司 | Heat exchange device capable of using automobile exhaust |
| CN203847224U (en) * | 2014-05-28 | 2014-09-24 | 成都陵川特种工业有限责任公司 | Combined muffler |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
| CN110922220A (en) * | 2019-11-18 | 2020-03-27 | 蒋为民 | Air duct, oxygen-adding type wet garbage fermentation platform and wet garbage treatment system |
| CN112555072A (en) * | 2020-12-08 | 2021-03-26 | 安徽江淮汽车集团股份有限公司 | Amortization structure and car |
| CN113265860A (en) * | 2021-04-16 | 2021-08-17 | 安徽舒森定制家居有限公司 | Intelligent clothes airing device with drying function |
| CN113265860B (en) * | 2021-04-16 | 2023-10-20 | 安徽舒森定制家居有限公司 | Intelligent clothes airing device with drying function |
| WO2023124300A1 (en) * | 2021-12-29 | 2023-07-06 | 中车大连机车研究所有限公司 | Emptying silencer of magnetic suspension air blower for sewage treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103982272B (en) | 2017-01-04 |
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