CN208310886U - Double docking bridge formula silencers - Google Patents
Double docking bridge formula silencers Download PDFInfo
- Publication number
- CN208310886U CN208310886U CN201820786266.7U CN201820786266U CN208310886U CN 208310886 U CN208310886 U CN 208310886U CN 201820786266 U CN201820786266 U CN 201820786266U CN 208310886 U CN208310886 U CN 208310886U
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- CN
- China
- Prior art keywords
- noise elimination
- inner chamber
- baffle
- chamber body
- air inlet
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- Expired - Fee Related
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- 238000003032 molecular docking Methods 0.000 title claims abstract description 20
- 230000008030 elimination Effects 0.000 claims abstract description 70
- 238000003379 elimination reaction Methods 0.000 claims abstract description 70
- 238000010586 diagram Methods 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
A kind of double docking bridge formula silencers, it includes main air inlet pipe, the first noise elimination pack assembly being connected with the main air inlet pipe and the second noise elimination pack assembly being connected with the main air inlet pipe, and the first noise elimination pack assembly is including the first noise elimination pack housing, the first escape pipe and is located at intracorporal first cavity of the first noise elimination involucrum；The second noise elimination pack assembly is including the second noise elimination pack housing, the second escape pipe and is located at intracorporal second cavity of the second noise elimination involucrum；First escape pipe is directly connected to second cavity, and second escape pipe is directly connected to first cavity.Compared to the prior art, the exhaust of the utility model is from a noise reduction packet into and going out from another noise reduction packet, eliminate the noise and wrap for any one, tail pipe length can be significantly increased, and low frequency acoustic attenuation performance has obtained effective promotion.
Description
Technical field
The utility model relates to a kind of double docking bridge formula silencers, belong to motor exhaust post-processing technology field.
Background technique
Please join shown in Fig. 1, in the exhaust system of the double double silencers of tradition, rear muffler assembly mainly include Y-piece,
Left noise elimination packet and right noise elimination packet.It is all independent from each other between two silencers of its middle left and right.In view of traditional rear muffler assembly
Known to person of ordinary skill in the field, details are not described herein.
In current double double silencer exhaust systems, in certain volume range, two noise elimination packets are all respectively only
It is vertical, respectively go noise reduction.But this design is primarily present following problem: first, two packets of eliminating the noise are respectively independent, lead to escape pipe mistake
It is short, solve the problems, such as that the ability of low-frequency noise is very limited.Second, to optimize low-frequency noise problem, noise elimination packet internal structure design
It can be more complicated.
How in the boundary condition fully wrapped using noise elimination, while in the case where not increasing muffler volume, effectively
The low-frequency noise problem that ground is greatly reduced under the slow-speed of revolution becomes very intractable.
Utility model content
The purpose of this utility model is to provide a kind of double docking bridge formula silencers for solving low frequency noise problem.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of double docking bridge formula silencers comprising main
Air inlet pipe, the first noise elimination pack assembly being connected with the main air inlet pipe and the second noise elimination being connected with the main air inlet pipe
Pack assembly, the first noise elimination pack assembly include the first noise elimination pack housing, the first escape pipe and wrap positioned at first noise elimination
Intracorporal first cavity of shell；The second noise elimination pack assembly includes the second noise elimination pack housing, the second escape pipe and is located at described
Intracorporal second cavity of second noise elimination involucrum；First escape pipe is directly connected to second cavity, second outlet
Pipe is directly connected to first cavity.
As the further improved technical solution of the utility model, first escape pipe includes being located at described first to eliminate the noise
It the first tail pipe on pack housing and first between the first noise elimination pack housing and the second noise elimination pack housing connects
Pipe, first adapter tube are directly connected to second cavity.
As the further improved technical solution of the utility model, second escape pipe includes being located at described second to eliminate the noise
It the second tail pipe on pack housing and second between the first noise elimination pack housing and the second noise elimination pack housing connects
Pipe, second adapter tube are directly connected to first cavity.
As the further improved technical solution of the utility model, the first noise elimination pack assembly further includes being located at described the
The intracorporal first baffle of one chamber and with the spaced second baffle of the first baffle, first cavity is separated into
In the first inner chamber body of the side of the first baffle, second between the first baffle and the second baffle
Cavity and third inner chamber body positioned at the other side of the second baffle, the first baffle, which is equipped with, is connected to the first inner chamber
First perforation of body and the second inner chamber body, the second baffle, which is equipped with, is connected to the second inner chamber body and the third inner cavity
Second perforation of body.
As the further improved technical solution of the utility model, the first noise elimination pack assembly further include with the master into
The first air inlet pipe that tracheae is connected, it is described to extend into that first air inlet pipe passes through the first baffle and second baffle
In first inner chamber body；Second adapter tube is directly connected to the third inner chamber body.
As the further improved technical solution of the utility model, the second noise elimination pack assembly further includes being located at described the
The intracorporal third baffle of two chambers and with the spaced fourth gear plate of the third baffle, second cavity is separated into
In the 4th inner chamber body of the side of the third baffle, the 5th between the third baffle and the fourth gear plate
Cavity and the 6th inner chamber body positioned at the other side of the fourth gear plate, the third baffle, which is equipped with, is connected to the 4th inner cavity
The third of body and the 5th inner chamber body is perforated, and the fourth gear plate, which is equipped with, is connected to the 5th inner chamber body and the 6th inner cavity
4th perforation of body.
As the further improved technical solution of the utility model, the second noise elimination pack assembly further include with the master into
The second air inlet pipe that tracheae is connected, it is described to extend into that second air inlet pipe passes through the third baffle and fourth gear plate
In 4th inner chamber body；First adapter tube is directly connected to the 6th inner chamber body.
As the further improved technical solution of the utility model, first air inlet pipe is equipped with and the second inner chamber body
Several first apertures of connection and several second orifices being connected to the third inner chamber body.
As the further improved technical solution of the utility model, second air inlet pipe is equipped with and the 5th inner chamber body
Several third apertures of connection and several 4th apertures being connected to the 6th inner chamber body.
As the further improved technical solution of the utility model, the main air inlet pipe is Y-shaped.
Compared to the prior art, the utility model is by the way that the first escape pipe to be directly connected to the second cavity and by second
Escape pipe is directly connected to the first cavity, i.e., from a noise reduction packet into and going out from another noise reduction packet, for any one noise elimination
Packet, tail pipe length can be significantly increased, and low frequency acoustic attenuation performance has obtained effective promotion.
Detailed description of the invention
Fig. 1 is the schematic diagram of traditional rear muffler assembly.
Fig. 2 is the schematic diagram of the double docking bridge formula silencers of the utility model.
Specific embodiment
It please join shown in Fig. 2, the utility model discloses a kind of double docking bridge formula silencers 300 comprising main air inlet pipe 400,
The first noise elimination pack assembly 100 being connected with the main air inlet pipe 400 and what is be connected with the main air inlet pipe 400 second disappear
Sound pack assembly 200.In the utility model embodiment illustrated, the main air inlet pipe 400 is Y-shaped.
The first noise elimination pack assembly 100 is including the first noise elimination pack housing 1, the first escape pipe 2 and positioned at described first
The first cavity 3 in noise elimination pack housing 1.The second noise elimination pack assembly 200 includes the second noise elimination pack housing 4, the second escape pipe 5
And the second cavity 6 in the second noise elimination pack housing 4.First escape pipe 2 directly connects with second cavity 6
Logical, second escape pipe 5 is directly connected to first cavity 3.
The first noise elimination pack assembly 100 further include first baffle 31 in first cavity 3 and with it is described
The spaced second baffle 32 of first baffle 31, is separated into one positioned at the first baffle 31 for first cavity 3
The first inner chamber body 33 of side, the second inner chamber body 34 between the first baffle 31 and the second baffle 32 and position
Third inner chamber body 35 in the other side of the second baffle 32, the first baffle 31, which is equipped with, is connected to the first inner chamber body 33
Perforate (not shown) with the first of the second inner chamber body 34, the second baffle 32 be equipped be connected to the second inner chamber body 34 with
Second perforation (not shown) of the third inner chamber body 35.
In addition, the first noise elimination pack assembly 100 further includes the first air inlet pipe 7 being connected with the main air inlet pipe 400.
First air inlet pipe 7 passes through the first baffle 31 and second baffle 32 to extend into the first inner chamber body 33.Institute
State the first air inlet pipe 7 be equipped with several first apertures 71 for being connected to the second inner chamber body 34 and with the third inner chamber body 35
Several second orifices 72 of connection.
First escape pipe 2 includes the first tail pipe 21 on the first noise elimination pack housing 1 and is located at described
The first adapter tube 22 between first noise elimination pack housing 1 and the second noise elimination pack housing 4.
The second noise elimination pack assembly 200 further include third baffle 61 in second cavity 6 and with it is described
The spaced fourth gear plate 62 of third baffle 61, is separated into one positioned at the third baffle 61 for second cavity 6
4th inner chamber body 63 of side, the 5th inner chamber body 64 between the third baffle 61 and the fourth gear plate 62 and position
The 6th inner chamber body 65 in the other side of the fourth gear plate 62.The third baffle 61, which is equipped with, is connected to the 4th inner chamber body 63
Perforate (not shown) with the third of the 5th inner chamber body 64, the fourth gear plate 62 be equipped be connected to the 5th inner chamber body 64 with
4th perforation (not shown) of the 6th inner chamber body 65.
The second noise elimination pack assembly 200 further includes the second air inlet pipe 8 being connected with the main air inlet pipe 400.It is described
Second air inlet pipe 8 passes through the third baffle 61 and fourth gear plate 62 to extend into the 4th inner chamber body 63.
Second air inlet pipe 8 be equipped with several third apertures 81 for being connected to the 5th inner chamber body 64 and with it is described
Several 4th apertures 82 of 6th inner chamber body 65 connection.
Second escape pipe 5 includes the second tail pipe 51 on the second noise elimination pack housing 4 and is located at described
The second adapter tube 52 between first noise elimination pack housing 1 and the second noise elimination pack housing 4.Second adapter tube and described first
Cavity is directly connected to.
In the utility model embodiment illustrated, first adapter tube 22 directly connects with the 6th inner chamber body 65
It is logical.Second adapter tube 52 is directly connected to the third inner chamber body 35.
The flow direction of exhaust please join shown in solid arrow and dotted arrow in Fig. 2.
Noise-cancelling theory: in the case where muffler volume is certain, escape pipe is most important tuning element.When sound wave passes through
During tail pipe is transmitted to atmosphere, because acoustic impedance has changed a lot, cause a big chunk sound wave that can be reflected
It goes back, the sound wave after reflection generates sound wave interference with incident sound wave and cuts down, so as to reach effectively noise elimination effect.Out
The pipe range of tracheae can regard 1/4 wavelength tube as, and frequency of noise elimination is as follows:
Wherein C is the velocity of sound, and N is harmonic wave number, and L is the length of escape pipe.
It can be seen that from above formula, when L is longer, frequency of noise elimination is lower, also means that when L is longer, disappears to low frequency
Acoustic performance is better.
For double docking bridge formula silencers 300, two noise elimination packets are connected by two adapter tubes 22,52, for
Any one packet of eliminating the noise, tail pipe length can be significantly increased, and low frequency acoustic attenuation performance has obtained effective promotion.
In addition, connected two noise elimination packets by two adapter tubes 22,52 for double docking bridge formula silencers 300,
It is combined again with Y type main air inlet pipe 400, forms a firm tripod structure, so that the durability of this silencer
It can be more preferable.
Above embodiments are merely to illustrate the utility model and not limit technical solution described in the utility model, right
The understanding of this specification should be based on person of ordinary skill in the field, although this specification is referring to the above embodiments
Detailed description is had been carried out to the utility model, still, those skilled in the art should understand that, technical field
Technical staff still the utility model can be modified or replaced equivalently, and all do not depart from the essence of the utility model
The technical solution and its improvement of mind and range, should all cover in the scope of the claims of the utility model.
Claims (10)
1. a kind of double docking bridge formula silencers comprising main air inlet pipe, the first noise elimination pack assembly being connected with the main air inlet pipe
And the second noise elimination pack assembly being connected with the main air inlet pipe, the first noise elimination pack assembly include the first noise elimination involucrum
Body, the first escape pipe and be located at intracorporal first cavity of the first noise elimination involucrum；The second noise elimination pack assembly includes the
Two noise elimination pack housings, the second escape pipe and be located at intracorporal second cavity of the second noise elimination involucrum；It is characterized by: described
First escape pipe is directly connected to second cavity, and second escape pipe is directly connected to first cavity.
2. docking bridge formula silencers as described in claim 1 double, it is characterised in that: first escape pipe includes being located at described the
The first tail pipe on one noise elimination pack housing and between the first noise elimination pack housing and the second noise elimination pack housing
First adapter tube, first adapter tube are directly connected to second cavity.
3. docking bridge formula silencers as claimed in claim 2 double, it is characterised in that: second escape pipe includes being located at described the
The second tail pipe on two noise elimination pack housings and between the first noise elimination pack housing and the second noise elimination pack housing
Second adapter tube, second adapter tube are directly connected to first cavity.
4. double docking bridge formula silencers as claimed in claim 3, it is characterised in that: the first noise elimination pack assembly further includes being located at
The intracorporal first baffle of first chamber and with the spaced second baffle of the first baffle, by first cavity
It is separated into the first inner chamber body positioned at the side of the first baffle, between the first baffle and the second baffle
Second inner chamber body and third inner chamber body positioned at the other side of the second baffle, the first baffle, which is equipped with, is connected to described the
First perforation of one inner chamber body and the second inner chamber body, the second baffle, which is equipped with, is connected to the second inner chamber body and described the
Second perforation of three inner chamber bodies.
5. docking bridge formula silencers as claimed in claim 4 double, it is characterised in that: the first noise elimination pack assembly further includes and institute
The first air inlet pipe that main air inlet pipe is connected is stated, first air inlet pipe passes through the first baffle and second baffle to extend
Enter in the first inner chamber body；Second adapter tube is directly connected to the third inner chamber body.
6. double docking bridge formula silencers as claimed in claim 5, it is characterised in that: the second noise elimination pack assembly further includes being located at
The intracorporal third baffle of second chamber and with the spaced fourth gear plate of the third baffle, by second cavity
It is separated into the 4th inner chamber body positioned at the side of the third baffle, between the third baffle and the fourth gear plate
5th inner chamber body and the 6th inner chamber body positioned at the other side of the fourth gear plate, the third baffle, which is equipped with, is connected to described the
The third of four inner chamber bodies and the 5th inner chamber body is perforated, and the fourth gear plate, which is equipped with, is connected to the 5th inner chamber body and described the
4th perforation of six inner chamber bodies.
7. docking bridge formula silencers as claimed in claim 6 double, it is characterised in that: the second noise elimination pack assembly further includes and institute
The second air inlet pipe that main air inlet pipe is connected is stated, second air inlet pipe passes through the third baffle and fourth gear plate to extend
Enter in the 4th inner chamber body；First adapter tube is directly connected to the 6th inner chamber body.
8. double docking bridge formula silencers as claimed in claim 5, it is characterised in that: first air inlet pipe is equipped with and described second
Several first apertures of inner chamber body connection and several second orifices being connected to the third inner chamber body.
9. double docking bridge formula silencers as claimed in claim 7, it is characterised in that: second air inlet pipe is equipped with and the described 5th
Several third apertures of inner chamber body connection and several 4th apertures being connected to the 6th inner chamber body.
10. double docking bridge formula silencers as claimed in claim 7, it is characterised in that: the main air inlet pipe is Y-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820786266.7U CN208310886U (en) | 2018-05-24 | 2018-05-24 | Double docking bridge formula silencers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820786266.7U CN208310886U (en) | 2018-05-24 | 2018-05-24 | Double docking bridge formula silencers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208310886U true CN208310886U (en) | 2019-01-01 |
Family
ID=64715290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820786266.7U Expired - Fee Related CN208310886U (en) | 2018-05-24 | 2018-05-24 | Double docking bridge formula silencers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208310886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506072A (en) * | 2018-05-24 | 2018-09-07 | 上海天纳克排气***有限公司 | Double docking bridge formula silencers |
-
2018
- 2018-05-24 CN CN201820786266.7U patent/CN208310886U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506072A (en) * | 2018-05-24 | 2018-09-07 | 上海天纳克排气***有限公司 | Double docking bridge formula silencers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |