CN207686792U - A kind of automobile-used impedance composite clampshell silencer - Google Patents
A kind of automobile-used impedance composite clampshell silencer Download PDFInfo
- Publication number
- CN207686792U CN207686792U CN201721828871.8U CN201721828871U CN207686792U CN 207686792 U CN207686792 U CN 207686792U CN 201721828871 U CN201721828871 U CN 201721828871U CN 207686792 U CN207686792 U CN 207686792U
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- CN
- China
- Prior art keywords
- pipe
- partition
- clam shell
- hole
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000005192 partition Methods 0.000 claims abstract description 41
- 230000030279 gene silencing Effects 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims 3
- 230000008030 elimination Effects 0.000 abstract description 3
- 238000003379 elimination reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 241000237536 Mytilus edulis Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 235000020638 mussel Nutrition 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model is related to a kind of automobile-used impedance composite clampshell silencer, the upper piece clam shell outside silencer is vertically connected with composition clam shell with bottom sheet clam shell, and clam shell is interior to be separated into three chambers by the first and second partition boards；First bend pipe is connect with the second bend pipe, and the second bend pipe is connect with the first hole pipe, and the first hole pipe runs through the first, second partition board；U-shaped bend pipe is placed in first chamber, and first partition is run through at both ends, and wherein one end is connect with straight tube, and the other end is connect with second hole pipe one end, and the second hole pipe runs through second partition, and is connect with tail pipe；Third hole pipe runs through the first, second partition board；High frequency silencing cavity is managed by the second hole, left end cap, cylinder and right end cap are constituted；The utility model is by improving acoustic wave filter structure, acoustic attenuation performance is improved, noise elimination frequency band is widened, overcomes the shortcomings that current silencer can only eliminate Middle and low frequency noise or high-frequency noise, it realizes the control to the entire band noise of engine, vehicle noise can be controlled rational horizontal.
Description
Technical field
The utility model is related to a kind of silencer for automobile, especially a kind of automobile-used impedance composite clampshell silencer belongs to
In gasoline engine exhaust aftertreatment technical field.
Background technology
It is gradually increased with the requirement of environmental regulation, requirement of the people to vehicle noise is also higher and higher.The row of engine
Gas noise is one of Main Noise Sources of vehicle, is had for improving vehicle noise abatement level to effective control of exhaust noise
Important influence.
It is the effective measures for reducing vehicle noise that exhaust silencer is installed after engine.Reactive muffler and resistance noise reduction
Device is most widely used noise elimination structure in silencer, and reactive muffler applies in general to the noise of middle low-frequency range, and resistive
Silencer applies in general to the noise of high band.
Under different operating modes, the entire frequency range of engine breathing noise covering from low to high is single to use resistance
Silencer or dissipative muffler cannot meet the needs of reducing all band noises, and the control of vehicle Induction and exhaust noises can not be made to exist
It is rational horizontal.
Invention content
The purpose of this utility model is the defect for existing silencer, provides a kind of automobile-used impedance composite clampshell
Silencer, the silencer realize the control to the entire band noise of engine, make vehicle noise control rational horizontal.
For the above technical purpose of realization, the technical solution adopted in the utility model is：A kind of automobile-used impedance composite clam shell
Formula silencer, the outside of the silencer include the first bend pipe, the second bend pipe, upper piece clam shell, bottom sheet clam shell and tail pipe, feature
It is, the upper piece clam shell is vertically connected with composition clam shell with bottom sheet clam shell, passes through first partition and second partition in the clam shell
It is separated into three chambers, respectively first chamber, second chamber and third chamber；
The air inlet of first bend pipe is connect with inlet flange, and gas outlet is connect with one end of the second bend pipe, and second is curved
The other end of pipe is inserted into clam shell, and connect with one end of the first hole pipe in clam shell, and the first hole pipe runs through first partition and the
Two partition boards, the other end are sealed by plug；
Further include U-shaped bend pipe, the U-shaped bend pipe is placed in first chamber, and first partition, wherein one end are run through in both ends
It is connect with straight tube, the other end is connect with one end of the second hole pipe, and the other end of second hole pipe runs through second partition, and is pierced by
Clam shell is connect with tail pipe；
Further include third hole pipe, the third hole pipe runs through first partition and second partition, and is placed in first chamber one end
Port be connected with blanking cover；
Further include high frequency silencing cavity, the high frequency silencing cavity includes the second hole pipe, left end cap, cylinder and right end cap, described
Cylinder left end is sealed by left end cap, and right end is sealed by right end cap, and left end cap and right end cap are connect with the second hole pipe, and high
Frequency silencing cavity runs through second partition.
Further, the first partition and second partition are vertically connected in clam shell.
Further, the pipe end of the tail pipe is bell shape.
Further, several apertures, a diameter of 2.5mm ~ 4.5mm of the aperture are provided in the first partition.
Further, first hole pipe is placed on first chamber and the indoor side wall of third chamber and is provided with several apertures,
A diameter of 2.5mm ~ 4.5mm of the aperture.
Further, it constitutes and is provided with several apertures, the diameter of the aperture on the second hole pipe of high frequency silencing cavity side wall
For 2.5mm ~ 4.5mm.
Further, third hole pipe, which is placed on the side wall in second chamber, is provided with several apertures, the aperture
A diameter of 2.5mm ~ 4.5mm.
From the above, it can be seen that the utility model has technical effect that：The impedance composite freshwater mussel of the utility model
Shell-type silencer improves the acoustic attenuation performance of silencer by the improvement of structure, has widened the noise elimination frequency band of silencer, has overcome
Current most of silencers can only eliminate Middle and low frequency noise, or the shortcomings that can only eliminate high-frequency noise, realize whole to engine
The control of a band noise can control vehicle noise rational horizontal.
Description of the drawings
Fig. 1 is that the utility model removes the structural schematic diagram after clam shell.
Fig. 2 is the part-structure schematic diagram of the utility model high frequency silencing cavity.
Fig. 3 is the structural schematic diagram of the utility model clam shell.
Reference sign：1- inlet flanges, the first bend pipes of 2-, the second bend pipes of 3-, the first holes 4- pipe, 5- plugs, 6- are straight
Pipe, 7-U types bend pipe, the second holes 8- pipe, 9- left end caps, 10- cylinders, 11- right end caps, 12- tail pipes, 13- blanking covers, 14- thirds hole
Pipe, 15- first partitions, 16- second partitions, upper clam shell of 17-, 18- bottom sheet clam shell, 19- first chambers, 20- second chambers and
21- third chambers.
Specific implementation mode
With reference to specific drawings and examples, the utility model is described in further detail.
With reference to the accompanying drawings shown in 1 ~ 3, a kind of automobile-used impedance composite clampshell silencer, the outside of the silencer includes the
One bend pipe 2, the second bend pipe 3, upper piece clam shell 17, bottom sheet clam shell 18 and tail pipe 12, which is characterized in that upper piece clam shell 17 is under
Piece clam shell 18 is vertically connected with composition clam shell, and the clam shell is interior to be separated into three chambers by first partition 15 and second partition 16,
Respectively first chamber 19, second chamber 20 and third chamber 21, the first partition 15 and second partition 16 are vertically connected on
In clam shell；
The air inlet of first bend pipe 2 is connect with inlet flange 1, and gas outlet is connect with one end of the second bend pipe 3, and second
The other end of bend pipe 3 is inserted into clam shell, and is connect with one end of the first hole pipe 4 in clam shell, and the first hole pipe 4 runs through first partition
15 and second partition 16, the other end sealed by plug 5；
Further include U-shaped bend pipe 7, the U-shaped bend pipe 7 is placed in first chamber 19, and first partition 15 is run through at both ends,
Middle one end is connect with straight tube 6, and the other end is connect with one end of the second hole pipe 8, the other end of second hole pipe 8 through second every
Plate 16, and be pierced by clam shell and connect with tail pipe 12, the pipe end of the tail pipe 12 is bell shape；
Further include third hole pipe 14, third hole pipe 14 runs through first partition 15 and second partition 16, and is placed in first
The port of 19 one end of chamber is connected with blanking cover 13；
Further include high frequency silencing cavity, the high frequency silencing cavity is by the second hole pipe 8,11 structure of left end cap 9, cylinder 10 and right end cap
At 10 left end of the cylinder is sealed by left end cap 9, and right end is sealed by right end cap 11, and left end cap 9 and right end cap 11 are with
Two hole pipes 8 connect, and high frequency silencing cavity runs through second partition 16.
Several apertures are provided in the present embodiment in first partition 15, a diameter of 2.5mm ~ 4.5mm of the aperture is described
Be provided with several apertures on the side wall that first hole pipe 4 is placed in first chamber 19 and third chamber 21, the aperture it is a diameter of
2.5mm ~ 4.5mm is constituted and is provided with several apertures on the second hole pipe 8 of high frequency silencing cavity side wall, the aperture it is a diameter of
2.5mm ~ 4.5mm, is provided with several apertures on the side wall that third hole pipe 14 is placed in second chamber 20, the aperture it is straight
Diameter is 2.5mm ~ 4.5mm.
The operation principle of the utility model is that the air-flow of motor exhaust is curved through the first bend pipe 2, second by inlet flange 1
Pipe 3 enters clam shell, and air-flow enters the first hole pipe 4, the first hole pipe 4 in first chamber 19 and third chamber 21 through the second bend pipe 3
On be provided with the aperture that several diameters are about 3.5mm, the pipe end of the first hole pipe 4 connects plug 5, and air-flow enters the first hole pipe 4
Afterwards, first chamber 19 and third chamber 21 are respectively enterd from the aperture on the first hole pipe 4, the gas of first chamber 19 is from passing through
Aperture on one partition board 15 enters second chamber 20, and the gas in third chamber 21 is from the right end air inlet of third hole pipe 14 through
Three hole pipes 14 are entered second chamber 20, and the gas in second chamber 20 enters U-shaped bend pipe 7 through straight tube 6, enter the through U-shaped bend pipe 7
Two hole pipes 8 enter high frequency silencing cavity by aperture on the second hole pipe 8, high frequency noise are eliminated by high frequency silencing cavity, finally by tail
Motor exhaust is discharged pipe 12.
The utility model and embodiments thereof are described above, description is not limiting, shown in attached drawing
Also it is one of the embodiment of the utility model, actual structure is not limited to this.If the ordinary skill people of this field
Member is enlightened by it, without deviating from the purpose of the present invention, is not inventively designed and the technical solution
Similar frame mode and embodiment, all should belong to the protection range of the utility model.
Claims (7)
1. the outside of a kind of automobile-used impedance composite clampshell silencer, the silencer includes the first bend pipe（2）, the second bend pipe
（3）, upper piece clam shell（17）, bottom sheet clam shell（18）And tail pipe（12）, which is characterized in that upper piece clam shell（17）With bottom sheet clam shell
（18）It is vertically connected with composition clam shell, passes through first partition in the clam shell（15）And second partition（16）Three chambers are separated into,
Respectively first chamber（19）, second chamber（20）With third chamber（21）；
First bend pipe（2）Air inlet and inlet flange（1）Connection, gas outlet and the second bend pipe（3）One end connection, the
Two bend pipes（3）The other end be inserted into clam shell in, and in clam shell the first hole manage（4）One end connection, the first hole pipe（4）Run through
First partition（15）And second partition（16）, the other end passes through plug（5）Sealing；
It further include U-shaped bend pipe（7）, the U-shaped bend pipe（7）It is placed in first chamber（19）It is interior, and first partition is run through at both ends
（15）, wherein one end and straight tube（6）Connection, the other end and the second hole are managed（8）One end connection, second hole pipe（8）It is another
Second partition is run through in one end（16）, and it is pierced by clam shell and tail pipe（12）Connection；
It further include third hole pipe（14）, the third hole pipe（14）Through first partition（15）And second partition（16）, and be placed in
First chamber（19）The port of one end is connected with blanking cover（13）；
Further include high frequency silencing cavity, the high frequency silencing cavity is managed including the second hole（8）, left end cap（9）, cylinder（10）And right end cap
（11）, the cylinder（10）Left end passes through left end cap（9）Sealing, right end pass through right end cap（11）Sealing, left end cap（9）And right end
Lid（11）Managed with the second hole（8）Connection, and high frequency silencing cavity runs through second partition（16）.
2. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that：Described first every
Plate（15）And second partition（16）It is vertically connected in clam shell.
3. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that：The tail pipe
（12）Pipe end be bell shape.
4. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that：Described first every
Plate（15）On be provided with several apertures, a diameter of 2.5mm ~ 4.5mm of the aperture.
5. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that：First hole
Pipe（4）It is placed in first chamber（19）With third chamber（21）Be provided with several apertures on interior side wall, the aperture it is a diameter of
2.5mm~4.5mm。
6. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that：High frequency is constituted to disappear
It manages in second hole of sound chamber side wall（8）On be provided with several apertures, a diameter of 2.5mm ~ 4.5mm of the aperture.
7. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that：The third hole
Pipe（14）It is placed in second chamber（20）Several apertures, a diameter of 2.5mm ~ 4.5mm of the aperture are provided on interior side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828871.8U CN207686792U (en) | 2017-12-23 | 2017-12-23 | A kind of automobile-used impedance composite clampshell silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828871.8U CN207686792U (en) | 2017-12-23 | 2017-12-23 | A kind of automobile-used impedance composite clampshell silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686792U true CN207686792U (en) | 2018-08-03 |
Family
ID=62996018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721828871.8U Expired - Fee Related CN207686792U (en) | 2017-12-23 | 2017-12-23 | A kind of automobile-used impedance composite clampshell silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207686792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382698A (en) * | 2022-01-28 | 2022-04-22 | 杰锋汽车动力系统股份有限公司 | Fuel cell air compressor silencer |
-
2017
- 2017-12-23 CN CN201721828871.8U patent/CN207686792U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382698A (en) * | 2022-01-28 | 2022-04-22 | 杰锋汽车动力系统股份有限公司 | Fuel cell air compressor silencer |
| CN114382698B (en) * | 2022-01-28 | 2024-04-09 | 杰锋汽车动力系统股份有限公司 | Muffler of fuel cell air compressor |
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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: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |