CN204371456U - Multi-cavity type automobile tail gas noise elimination device - Google Patents
Multi-cavity type automobile tail gas noise elimination device Download PDFInfo
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- CN204371456U CN204371456U CN201420841093.6U CN201420841093U CN204371456U CN 204371456 U CN204371456 U CN 204371456U CN 201420841093 U CN201420841093 U CN 201420841093U CN 204371456 U CN204371456 U CN 204371456U
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Abstract
Multi-cavity type automobile tail gas noise elimination device, the utility model relates to the technical field of automobile tail gas noise elimination.The utility model is the restriction that volume and quality in order to overcome existing single silencing pot is subject to car body, and effect can not reach the problem of re-set target.Its suction tude exposes one section through after front cover, front dividing plate and rear bulkhead from left to right on the right side of rear bulkhead, and the port that suction tude exposes a section on the left of front cover is tail gas suction port; Intermediate core pipe is arranged on circle tube form shell body inside, intermediate core pipe exposes one section through after front dividing plate and rear bulkhead from left to right on the right side of rear bulkhead, the left side of intermediate core Guan Qian dividing plate exposes one section, exhaust core pipe right-to-left is through exposing one section in the left side of front dividing plate after rear end cover, rear bulkhead and front dividing plate, and the port that exhaust core pipe exposes a section on the right side of rear end cover is tail gas exhaust port.Compact structure of the present utility model, reasonable in design, effectively can cut down the exhaust sound in the whole speed range of motor.
Description
Technical field
The utility model relates to the technical field of automobile tail gas noise elimination.
Background technique
Along with the continuous expansion of urban size, city vehicle also increases thereupon, and with while transport development, automobile noise pollutes also extensively to be familiar with by people.For the main source motor of automobile noise, exhaust silencer rational in infrastructure reduces the most effective method of car load pass-by noise.Current existing acoustic wave filter structure generally comprises suction tude, housing, outlet pipe etc.The kind of silencing apparatus is a lot, but studies carefully its noise elimination mechanism, they can be divided into main type again, i.e. single chamber silencing apparatus, double-cavity silencer, threeway perforation silencing apparatus, resistive silencing apparatus, micropunch plate muffler, micropole diffusor.The maximum multi-cavity type silencing apparatus of present application is exactly by allowing waste gas step by step through the absorption of multi-cavity and sound-absorbing material, and the mode in air of being finally discharged to is to realize acoustically effective.And the volume of single silencing pot and quality are subject to the restriction of car body, effect can not reach re-set target.
Summary of the invention
The purpose of this utility model is to provide a kind of multi-cavity type automobile tail gas noise elimination device, and the utility model is the restriction that volume and quality in order to overcome existing single silencing pot is subject to car body, and effect can not reach the problem of re-set target.A kind of multi-cavity type automobile tail gas noise elimination device of the present utility model, it comprises circle tube form shell body 1, front cover 2, front dividing plate 3, rear bulkhead 4, rear end cover 5, suction tude 6, intermediate core pipe 7, exhaust core pipe 8;
Front cover 2 seal buckle is in the left port of circle tube form shell body 1, and rear end cover 5 seal buckle is in the right output port of circle tube form shell body 1; It is inner that front dividing plate 3, rear bulkhead 4 are all arranged on circle tube form shell body 1, circle tube form shell body 1 inside is partitioned into from left to right the first chamber 1-1, the second chamber 1-2 and the 3rd chamber 1-3, suction tude 6 is from left to right through exposing one section after front cover 2, front dividing plate 3 and rear bulkhead 4 on the right side of rear bulkhead 4, and the port that suction tude 6 exposes a section on the left of front cover 2 is tail gas suction port; It is inner that intermediate core pipe 7 is arranged on circle tube form shell body 1, intermediate core pipe 7 exposes one section through after front dividing plate 3 and rear bulkhead 4 from left to right on the right side of rear bulkhead 4, intermediate core pipe 7 exposes one section in the left side of front dividing plate 3, exhaust core pipe 8 right-to-left is through exposing one section in the left side of front dividing plate 3 after rear end cover 5, rear bulkhead 4 and front dividing plate 3, and the port that exhaust core pipe 8 exposes a section on the right side of rear end cover 5 is tail gas exhaust port.
Compact structure of the present utility model, reasonable in design, effectively can cut down the exhaust sound in the whole speed range of motor; The utility model, owing to being multi-cavity sound attenuation device, reducing the impact of high-temperature high-pressure air flow to main muffler, extends the working life of main muffler.Due to the regulating action of multi-cavity, make motor back pressure at high speed lower, thus ensure that power character and the Economy of motor.It also has structure simple, easy manufacture, easily maintenance, advantage with low cost.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Embodiment one: composition graphs 1 illustrates present embodiment, present embodiment is made up of circle tube form shell body 1, front cover 2, front dividing plate 3, rear bulkhead 4, rear end cover 5, suction tude 6, intermediate core pipe 7, exhaust core pipe 8;
Front cover 2 seal buckle is in the left port of circle tube form shell body 1, and rear end cover 5 seal buckle is in the right output port of circle tube form shell body 1; It is inner that front dividing plate 3, rear bulkhead 4 are all arranged on circle tube form shell body 1, circle tube form shell body 1 inside is partitioned into from left to right the first chamber 1-1, the second chamber 1-2 and the 3rd chamber 1-3, suction tude 6 is from left to right through exposing one section after front cover 2, front dividing plate 3 and rear bulkhead 4 on the right side of rear bulkhead 4, and the port that suction tude 6 exposes a section on the left of front cover 2 is tail gas suction port; It is inner that intermediate core pipe 7 is arranged on circle tube form shell body 1, intermediate core pipe 7 exposes one section through after front dividing plate 3 and rear bulkhead 4 from left to right on the right side of rear bulkhead 4, intermediate core pipe 7 exposes one section in the left side of front dividing plate 3, exhaust core pipe 8 right-to-left is through exposing one section in the left side of front dividing plate 3 after rear end cover 5, rear bulkhead 4 and front dividing plate 3, and the port that exhaust core pipe 8 exposes a section on the right side of rear end cover 5 is tail gas exhaust port.
Described circle tube form shell body 1, front cover 2, front dividing plate 3, rear bulkhead 4, rear end cover 5, suction tude 6, between intermediate core pipe 7 and exhaust core pipe 8 place of being connected to each other for being tightly connected.
The shape of described front cover 2, front dividing plate 3, rear bulkhead 4 and rear end cover 5 is oval.
Described suction tude 6, intermediate core pipe 7 and exhaust core pipe 8 are arranged side by side successively.
Embodiment two: composition graphs 1 illustrates present embodiment, this embodiment is equally distributed on the tube wall being exposed at the suction tude 6 in the second chamber 1-2 on the basis of embodiment one has multiple vent 6-1, equally distributedly on the tube wall being exposed at the intermediate core pipe 7 in the second chamber 1-2 have multiple vent 7-1, equally distributedly on the tube wall being exposed at the exhaust core pipe 8 in the second chamber 1-2 have multiple vent 8-1.
Embodiment three: composition graphs 1 illustrates present embodiment, on the tube wall that this embodiment and the difference of embodiment two are suction tude 6 in multiple vent 6-1 of the tube wall upper left side of suction tude 6 in the second chamber 1-2 and the second chamber 1-2, the diameter of multiple vent 6-1 on right side is different; In second chamber 1-2, on multiple vent 7-1 of the tube wall upper left side of intermediate core pipe 7 and the tube wall of intermediate core pipe 7 in the second chamber 1-2, the diameter of multiple vent 7-1 on right side is different; In second chamber 1-2, on multiple vent 8-1 of the tube wall upper left side of exhaust core pipe 8 and the tube wall of exhaust core pipe 8 in the second chamber 1-2, the diameter of multiple vent 8-1 on right side is different.Other composition is identical with embodiment two with annexation.
Embodiment four: composition graphs 1 illustrates present embodiment, this embodiment is provided with one deck sound-absorbing material 8-2 on the basis of embodiment one on the inner headed face of exhaust core pipe 8 intermediate section.
Working principle:
Described suction tude 6 extends in the 3rd chamber 1-3, the high-frequency noise of the exhaust sound coming from motor is so just made to be absorbed in the first chamber 1-1, remaining part continues propagates down stream, and producing lost in the second chamber 1-2, another part enters the 3rd chamber 1-3 and produces resonance.Described intermediate core pipe 7 tube wall there is the pore area of vent 7-1, be in the second chamber 1-2 herein.Be fixed on front dividing plate 3 and rear bulkhead 4, originate in the first chamber 1-1, end in the 3rd chamber 1-3.Thus the gas in the 3rd chamber 1-3 is entered in the first chamber 1-1, in the second chamber 1-2 by intermediate core pipe 7.Air-flow and sound wave through the pore area of the vent 7-1 of intermediate core pipe 7 in the second chamber 1-2.In second chamber 1-2, a part for gas in 3rd chamber 1-3 enters in the first chamber 1-1, return afterwards and enter in exhaust core pipe 8, gas simultaneously in the second chamber 1-2 is met by the multiple vent 8-1 on exhaust core pipe 8 and the gas entered in the first chamber 1-1, two-way sound wave produces interferes, the result of interfering makes Middle and low frequency noise reduce further, finally absorbed coming from the reproduced air-flow noise produced in the high-frequency noise of motor and silencing apparatus by the sound-absorbing material 8-2 in exhaust core pipe 8, thus achieve low frequency to the good soundproof effect of high frequency.
Claims (6)
1. multi-cavity type automobile tail gas noise elimination device, is characterized in that it comprises circle tube form shell body (1), front cover (2), front dividing plate (3), rear bulkhead (4), rear end cover (5), suction tude (6), intermediate core pipe (7), exhaust core pipe (8);
Front cover (2) seal buckle is in the left port of circle tube form shell body (1), and rear end cover (5) seal buckle is in the right output port of circle tube form shell body (1); It is inner that front dividing plate (3), rear bulkhead (4) are all arranged on circle tube form shell body (1), circle tube form shell body (1) inside is partitioned into from left to right the first chamber (1-1), the second chamber (1-2) and the 3rd chamber (1-3), suction tude (6) exposes one section through after front cover (2), front dividing plate (3) and rear bulkhead (4) on rear bulkhead (4) right side from left to right, and the port that suction tude (6) exposes a section in front cover (2) left side is tail gas suction port; It is inner that intermediate core pipe (7) is arranged on circle tube form shell body (1), intermediate core pipe (7) exposes one section through after front dividing plate (3) and rear bulkhead (4) on rear bulkhead (4) right side from left to right, intermediate core pipe (7) exposes one section in the left side of front dividing plate (3), exhaust core pipe (8) right-to-left exposes one section through after rear end cover (5), rear bulkhead (4) and front dividing plate (3) in the left side of front dividing plate (3), and the port that exhaust core pipe (8) exposes a section on rear end cover (5) right side is tail gas exhaust port.
2. multi-cavity type automobile tail gas noise elimination device according to claim 1, equally distributedly on the tube wall that it is characterized in that the suction tude (6) be exposed in the second chamber (1-2) have multiple vent (6-1), equally distributedly on the tube wall being exposed at the intermediate core pipe (7) in the second chamber (1-2) have multiple vent (7-1), equally distributedly on the tube wall being exposed at the exhaust core pipe (8) in the second chamber (1-2) have multiple vent (8-1).
3. multi-cavity type automobile tail gas noise elimination device according to claim 1 and 2, is characterized in that multiple vents (6-1) of the tube wall upper left side of the second chamber (1-2) interior suction tude (6) are different from the diameter of multiple vents (6-1) on right side on the tube wall of suction tude (6) in the second chamber (1-2); Multiple vents (7-1) of the tube wall upper left side of the second chamber (1-2) interior intermediate core pipe (7) are different from the diameter of multiple vents (7-1) on right side on the tube wall of the second chamber (1-2) interior intermediate core pipe (7); Multiple vents (8-1) of the tube wall upper left side of the second chamber (1-2) interior exhaust core pipe (8) are different from the diameter of multiple vents (8-1) on right side on the tube wall of the second chamber (1-2) interior exhaust core pipe (8).
4. multi-cavity type automobile tail gas noise elimination device according to claim 1, the inner headed face that it is characterized in that exhaust core pipe (8) intermediate section is provided with one deck sound-absorbing material (8-2).
5. multi-cavity type automobile tail gas noise elimination device according to claim 1, is characterized in that the shape of described front cover (2), front dividing plate (3), rear bulkhead (4) and rear end cover (5) is for oval.
6. multi-cavity type automobile tail gas noise elimination device according to claim 1, is characterized in that described suction tude (6), intermediate core pipe (7) and exhaust core pipe (8) are arranged side by side successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420841093.6U CN204371456U (en) | 2014-12-27 | 2014-12-27 | Multi-cavity type automobile tail gas noise elimination device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420841093.6U CN204371456U (en) | 2014-12-27 | 2014-12-27 | Multi-cavity type automobile tail gas noise elimination device |
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| Publication Number | Publication Date |
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| CN204371456U true CN204371456U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420841093.6U Active CN204371456U (en) | 2014-12-27 | 2014-12-27 | Multi-cavity type automobile tail gas noise elimination device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458242A (en) * | 2018-09-30 | 2019-03-12 | 扬州工业职业技术学院 | Boosted diesel engine exhausting silencer |
-
2014
- 2014-12-27 CN CN201420841093.6U patent/CN204371456U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458242A (en) * | 2018-09-30 | 2019-03-12 | 扬州工业职业技术学院 | Boosted diesel engine exhausting silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181212 Address after: 610000 Chengdu Economic and Technological Development Zone (Longquanyi District), Sichuan Province Patentee after: AIRUI (Chengdu) Emission Control Technology Co., Ltd. Address before: 132013 No. B-3-1, Industrial Zone 3, Jilin High-tech Zone, Jilin Province Patentee before: Jilin Airui Environmental Protection Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |