CN203584515U - Novel silencer air inlet pipe - Google Patents
Novel silencer air inlet pipe Download PDFInfo
- Publication number
- CN203584515U CN203584515U CN201320692257.9U CN201320692257U CN203584515U CN 203584515 U CN203584515 U CN 203584515U CN 201320692257 U CN201320692257 U CN 201320692257U CN 203584515 U CN203584515 U CN 203584515U
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- hole
- pipe body
- air outlet
- pore
- air inlet
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Abstract
The utility model provides a novel silencer air inlet pipe. An air inlet is formed in one end of a first pipe body, the other end of the first pipe body is closed, and an air hole is formed in the middle of the first pipe body. A through hole is formed between the air hole and the air inlet in the first pipe body, and a sound absorption wall is arranged outside the through hole. A plurality of first air outlet holes are formed between the air hole in the first pipe body and the closed end of the first pipe body. A second pipe body is arranged on the outer wall between the air hole and the first air outlet holes in the first pipe body, one end of the second pipe body is connected with the outer wall of the first pipe body in a closed mode, the other end of the second pipe body is closed, and a second air outlet hole is formed in the middle of the second pipe body. The novel silencer air inlet pipe is low in cost and simple in structure, a first expansion cavity can be fully utilized, the number of expansion cavities can be increased in a disguised form on the premise that larger space is not occupied, and a better silencing effect is achieved.
Description
(1) technical field
The utility model relates to a kind of automotive muffler, particularly relates to a kind of model muffler suction tude.
(2) background technique
Automobile noise is mainly from automobile exhaust noise.If do not add silencing apparatus, under certain speed, noise can reach more than 100 decibels.Secondly be engine noise and tyre noise, engine noise, when automobile runs well, can reach more than 90 decibels, and tyre noise the speed of a motor vehicle be 90 kilometers/time when above, can reach 95 decibels of left and right.Therefore, in vent systems, add silencing apparatus, can make automobile exhaust reducing noise 20-30 decibel.Automotive muffler is the constituent elements that automobile is conventional, is conducive to reduce the noise pollution in vehicle traveling process, utilizes sound wave stack principle of interference to be made.The principle of mobile muffler be exactly its automobile exhaust pipe be to be formed by two different pipelines of length, these two pipelines first separately cross again.Due to two pipelines length difference equal the half of the wavelength of the sound wave that automobile sends, when two row sound waves are interfered when stack, cancel out each other and weaken the sound intensity, sound is reduced, thereby plays the effect of noise reduction.Thereby existing silencing apparatus utilizes expansion cavity to realize sound wave conventionally mutually interferes and reduces acoustic energy, but while utilizing the method, the main task that reduces acoustic energy is often mainly realized by the second expansion cavity, and the utilization of the first expansion cavity is abundant not.And due to limited space, two to three expansion cavities are only set conventionally, fewer expansion cavity is more difficult reaches better soundproof effect, and want to realize, repeatedly eliminate the noise, all higher to improve the silencing apparatus cost of soundproof effect.Cost is low on the market now, simple in structure, can make full use of the first expansion cavity, and the silencing apparatus that can reach better soundproof effect little time that takes up room is not also found, and awaits exploitation.
(3) model utility content
In order to overcome the deficiency of existing silencing apparatus, the utility model provides a kind of model muffler suction tude.
The technical solution of the utility model is achieved in that
A kind of model muffler suction tude of this programme, comprise the first body, through hole, pore, suction port, the first air outlet hole, sound-absorbing wall, the second air outlet hole and the second body, described first body one end is provided with suction port, described the first body the other end sealing, the middle part of described the first body is provided with pore, on described the first body, between pore and suction port, be provided with through hole, described through hole arranged outside has sound-absorbing wall, on described the first body, between pore and one end of the first body sealing, be provided with some the first air outlet holes, on outer wall on described the first body between pore and the first air outlet hole, be provided with the second body, the airtight connection of outer wall of one end of described the second body and the first body, the other end sealing of described the second body, the middle part of described the second body is provided with the second air outlet hole.
Further, in described sound-absorbing wall, be provided with sound absorbing material.
Further, the quantity of described through hole is no less than 20.
Further, the quantity of described pore is no less than 8.
Further, the quantity of described the first air outlet hole is no less than 20.
Further, the quantity of described the second air outlet hole is no less than 12.
Usefulness of the present utility model is: with low cost, simple in structure, can guide more gas first to enter the first expansion cavity, utilized fully the first expansion cavity, and the covert quantity that improves expansion cavity, reaches better soundproof effect under the prerequisite that does not take greater room.
(4) accompanying drawing explanation
Fig. 1 is Organizational Structure schematic diagram of the present utility model.
Fig. 2 is work schematic diagram of the present utility model.
Wherein: 1-the first body, 2-through hole, 3-pore, 4-suction port, 5-the first air outlet hole, 6-sound-absorbing wall, 7-the second air outlet hole, 8-the second body, 9-the first expansion cavity, 10-the second expansion cavity, 11-steam outlet pipe.
(5) embodiment
Below in conjunction with accompanying drawing, a kind of mode of execution of the present utility model is made to brief description.
A kind of model muffler suction tude as shown in the figure, comprise the first body 1, through hole 2, pore 3, suction port 4, the first air outlet hole 5, sound-absorbing wall 6, the second air outlet hole 7 and the second body 8, described first body 1 one end is provided with suction port 4, described the first body 1 the other end sealing, the middle part of described the first body 1 is provided with pore 3, on described the first body 1, between pore 3 and suction port 4, be provided with through hole 2, described through hole 2 arranged outside have sound-absorbing wall 6, between one end that on described the first body 1, pore 3 and the first body 1 seal, be provided with some the first air outlet holes 5, on outer wall on described the first body 1 between pore 3 and the first air outlet hole 5, be provided with the second body 8, the airtight connection of outer wall of one end of described the second body 8 and the first body 1, the other end sealing of described the second body 8, the middle part of described the second body 8 is provided with the second air outlet hole 7.
In described sound-absorbing wall 6, be provided with sound absorbing material, the quantity of described through hole 2 is no less than 20, and the quantity of described pore 3 is no less than 8, and the quantity of described the first air outlet hole 5 is no less than 20, and the quantity of described the second air outlet hole 7 is no less than 12.
The working procedure of this example: while using the utility model, tail gas enters the first body 1 by suction port 4, portion gas sees through through hole 2 and enters sound-absorbing wall 6, after sound-absorbing material sponges partial noise, via through holes 2 is got back to the first body 1, mix with remaining gas, portion gas enters the first expansion cavity 9 by pore 3, noise interferes mutually through overcompression and expansion, after reducing acoustic energy, by pore 3, again get back to the first body 1, by the first air outlet hole 5, enter the second body 8, because the caliber of the second body 8 is larger than the caliber of the first body 1, through overcompression and expansion, mutually interfere again, further reduced acoustic energy, reduce noise.Gas enters the second expansion cavity 10 from the second air outlet hole 7 after the interior reduction acoustic energy of the second body 8, mutually interferes again through overcompression and expansion, again reduces acoustic energy.Last gas enters steam outlet pipe 11 by the hole on steam outlet pipe 11 and discharges silencing apparatus.Due in the first body 1 outer installment the second body 8, increased resistance when air-flow enters the second expansion cavity 10, make more gas first enter into the first expansion cavity 9 inside, increased the utilization ratio of the first expansion cavity 9.And because the caliber of the second body 8 is larger than the caliber of the first body 1, also formed the structure of an expansion cavity, under the prerequisite of volume that does not expand whole silencing apparatus, in a disguised form increased an expansion cavity, added soundproof effect one time.Such design cost is lower, manufacture and the successful of being beneficial to simple in structure.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (6)
1. a model muffler suction tude, comprise the first body (1), through hole (2), pore (3), suction port (4), the first air outlet hole (5), sound-absorbing wall (6), the second air outlet hole (7) and the second body (8), it is characterized in that: described the first body (1) one end is provided with suction port (4), the sealing of described the first body (1) the other end, the middle part of described the first body (1) is provided with pore (3), between the upper pore (3) of described the first body (1) and suction port (4), be provided with through hole (2), described through hole (2) arranged outside has sound-absorbing wall (6), between the upper pore (3) of described the first body (1) and one end of the first body (1) sealing, be provided with some the first air outlet holes (5), on outer wall between the upper pore (3) of described the first body (1) and the first air outlet hole (5), be provided with the second body (8), the airtight connection of outer wall of one end of described the second body (8) and the first body (1), the other end sealing of described the second body (8), the middle part of described the second body (8) is provided with the second air outlet hole (7).
2. a kind of model muffler suction tude according to claim 1, is characterized in that: in described sound-absorbing wall (6), be provided with sound absorbing material.
3. a kind of model muffler suction tude according to claim 1, is characterized in that: the quantity of described through hole (2) is no less than 20.
4. a kind of model muffler suction tude according to claim 1, is characterized in that: the quantity of described pore (3) is no less than 8.
5. a kind of model muffler suction tude according to claim 1, is characterized in that: the quantity of described the first air outlet hole (5) is no less than 20.
6. a kind of model muffler suction tude according to claim 1, is characterized in that: the quantity of described the second air outlet hole (7) is no less than 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692257.9U CN203584515U (en) | 2013-11-04 | 2013-11-04 | Novel silencer air inlet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692257.9U CN203584515U (en) | 2013-11-04 | 2013-11-04 | Novel silencer air inlet pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584515U true CN203584515U (en) | 2014-05-07 |
Family
ID=50582451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320692257.9U Expired - Fee Related CN203584515U (en) | 2013-11-04 | 2013-11-04 | Novel silencer air inlet pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584515U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005889A (en) * | 2014-06-13 | 2014-08-27 | 成都万友滤机有限公司 | Combined resonator |
| CN108386253A (en) * | 2018-03-28 | 2018-08-10 | 广东知识城运营服务有限公司 | A kind of loading machine silencer mechanism |
-
2013
- 2013-11-04 CN CN201320692257.9U patent/CN203584515U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005889A (en) * | 2014-06-13 | 2014-08-27 | 成都万友滤机有限公司 | Combined resonator |
| CN108386253A (en) * | 2018-03-28 | 2018-08-10 | 广东知识城运营服务有限公司 | A kind of loading machine silencer mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141104 |
|
| EXPY | Termination of patent right or utility model |