CN208138026U - A kind of automobile engine silencing means - Google Patents
A kind of automobile engine silencing means Download PDFInfo
- Publication number
- CN208138026U CN208138026U CN201820458475.9U CN201820458475U CN208138026U CN 208138026 U CN208138026 U CN 208138026U CN 201820458475 U CN201820458475 U CN 201820458475U CN 208138026 U CN208138026 U CN 208138026U
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- CN
- China
- Prior art keywords
- bloop
- hush pipe
- internal partition
- cylinder
- anechoic 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
- 230000030279 gene silencing Effects 0.000 title claims abstract description 25
- 238000005192 partition Methods 0.000 claims abstract description 50
- 230000003584 silencer Effects 0.000 claims abstract description 13
- 239000011358 absorbing material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of automobile engine silencing means, including after silencer and mounting bracket；After silencer includes cylinder, the first internal partition, the second internal partition, third internal partition and the first hush pipe, the second hush pipe and third hush pipe；Third bloop outer periphery is provided with resistive silencing cavity, sound absorbing layer is arranged in resistive silencing cavity, the rear end of resistive silencing cavity is provided with stomata and spoiler；Mounting bracket is fixed on cylinder；Mounting bracket includes the support frame and clip of the connecting plate of T shape, connecting rod, U-shaped.The device of the utility model is internally provided with three partitions and three hush pipes, by the design of the structure design and installation position to hush pipe, so that product is with good stability and treatment effect, can meet the standard of country；The structure for optimizing mounting bracket simultaneously, can be easily installed.
Description
Technical field
The utility model relates to technical field of automobile accessories, and in particular to arrive a kind of automobile engine silencing means.
Background technique
Automobile exhaust system is generally by exhaust pipe, muffler, catalyst and exhaust system mounting parts etc.
Composition.Exhaust system is mainly responsible for the processing control after vehicle discharge, and vehicle discharge is made to meet the regulation of concerned countries, place.
Meanwhile exhaust system is also responsible for the critical function of vehicle discharge back pressure, noise control.The main effect of exhaust system muffler is just
It is control vehicle displacement noise.
Utility model content
The purpose of the utility model is to provide a kind of automobile engine silencing means.
In order to achieve the above object, providing a kind of automobile engine silencing means in one embodiment of the utility model, wrap
Include after silencer and mounting bracket；
After silencer includes cylinder, is mounted on intracorporal first internal partition of cylinder, the second internal partition, third internal partition and
One hush pipe, the second hush pipe and third hush pipe；
The middle section of first hush pipe and the second hush pipe is respectively arranged with the first bloop and the second bloop；Third noise reduction
It is provided with third bloop, the 4th bloop and the 5th bloop on pipe, and is provided in third bloop outer periphery resistive
Silencing cavity, resistive silencing cavity is interior to be arranged sound absorbing layer, and the rear end of resistive silencing cavity is provided with stomata and spoiler；
The both ends of cylinder are provided with the end cap for sealing cylinder, and are respectively arranged with air inlet pipe and row on the end cap at both ends
Tracheae；The outlet end of cylinder has 0.5 degree~1.0 degree of taper, in a circular table shape；
Cylinder is separated into four anechoic chambers by the first internal partition, the second internal partition and third internal partition；
First bloop, the second bloop and the 4th bloop are arranged in the second anechoic chamber, and the setting of third bloop exists
In first anechoic chamber, the 5th bloop is arranged in third anechoic chamber；The inlet and outlet both ends of first hush pipe are separately positioned on
The inlet and outlet both ends of one anechoic chamber and the second anechoic chamber, the second hush pipe and third hush pipe be separately positioned on the first anechoic chamber and
4th anechoic chamber；
Mounting bracket is fixed on cylinder；Mounting bracket includes the support frame and card of the connecting plate of T shape, connecting rod, U-shaped
Hoop；The vertical section of connecting rod is provided with two rows of screw holes, and horizontal segment is provided with through hole；Connecting rod passes through support after passing through through hole
Horizontal segment is connect with support frame by nut behind the hole of top of the trellis；2 elastic cushion blocks, one of bullet are configured in connecting rod
Property cushion block be arranged on connecting plate, another setting on the support frame.
Preferably, be provided on the first internal partition, the second internal partition and third internal partition hemispheric flange and every
Plate through-hole；Sound-absorbing material is filled between the first inner partition and the second inner partition.
Preferably, it is provided with ring flange in air inlet pipe, there is step on ring flange, and be provided with heat resistant pad in step
Circle.
Preferably, annular groove is offered on the inner wall of bulkhead through-hole, and heat resisting gasket is installed in annular groove.
In conclusion the utility model has the following advantages that：
The device of the utility model is internally provided with three partitions and three hush pipes, is set by the structure to hush pipe
The design of meter and installation site can meet the standard of country so that product is with good stability and treatment effect；Simultaneously
The structure of mounting bracket is optimized, can be easily installed.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of after silencer in the utility model one embodiment；
Fig. 2 is the structural schematic diagram of mounting bracket in the utility model one embodiment；
Fig. 3 is the schematic diagram of after silencer in the utility model one embodiment；Hush pipe is wherein omitted；
Fig. 4 is the schematic diagram of internal partition in the utility model one embodiment.
Wherein, 3, cylinder；4, the first internal partition；5, the second internal partition；6, third internal partition；7, the first hush pipe；8,
Two hush pipes；9, third hush pipe；10, the first bloop；11, the second bloop；12, third bloop；13, the 4th noise reduction
Hole；14, the 5th bloop；15, resistive silencing cavity；16, sound absorbing layer；17, stomata；18, spoiler；19, end cap；20, air inlet
Pipe；21, exhaust pipe；22, step；23, the first anechoic chamber；24, the second anechoic chamber；25, third anechoic chamber；26, the 4th noise reduction
Room；27, flange；28, bulkhead through-hole；29, sound-absorbing material；30, annular groove；33, horizontal segment；34, connecting rod；35, support frame；
36, elastic cushion block；37, clip；38, vertical section.
Specific embodiment
The utility model provides a kind of automobile engine silencing means, including after silencer and mounting bracket；Installation
Bracket is nested in the periphery of after silencer.
After silencer include cylinder 3, the first internal partition being mounted in cylinder 3 the 4, second internal partition in 5, third every
Plate is 6 and first hush pipe 7, the second hush pipe 8 and third hush pipe 9.Cylinder 3 is the mounting body of muffler, in three
Partition can be made of metal material, be stably mounted inside cylinder 3, and the spacing between three can be according to the length of hush pipe
Degree is suitably to be adjusted.
The middle section of first hush pipe 7 and the second hush pipe 8 is respectively arranged with the first bloop 10 and the second bloop 11；The
Third bloop 12, the 4th bloop 13 and the 5th bloop 14 are provided on three hush pipes 9, and in 12 outside of third bloop
Surrounding is provided with resistive silencing cavity 15, sound absorbing layer 16 is arranged in resistive silencing cavity 15, the rear end of resistive silencing cavity 15 is provided with gas
Hole 17 and spoiler 18.
By the tail gas of third hush pipe 9, some will be entered in resistive silencing cavity 15 from third bloop 12, be inhaled
Sound-absorbing layer 16 is the sound-absorbing material 29 of filling, and to reducing, mid-frequency noise is advantageous.Then air-flow is still back to from third bloop 12
In third hush pipe 9.Likewise, stomata 17 can also allow partial tail gas to enter the first anechoic chamber 23, and in spoiler 18
Blocking down makes it backflow to third hush pipe 9, and air-flow interferes with each other in this process, rubs with spoiler 18 and tube body transmission
It wipes, reduces the kinetic energy of air-flow, the Noise Reduction to play a role.
The both ends of cylinder 3 are provided with the end cap 19 for sealing cylinder 3, and are respectively arranged with air inlet on the end cap at both ends 19
Pipe 20 and exhaust pipe 21.The outlet end of cylinder 3 has 0.5 degree~1.0 degree of taper, in a circular table shape.With certain taper energy
Enough so that outlet end becomes smaller, so that the position insertion that internal partition during installation can be never tapered, enters tapered one
When section inside can be firmly secured to by interference fit.
The outlet end of cylinder 3 can be for installing third internal partition 6 or for installing the second internal partition 5 and the
Three internal partitions are at one section of 6；The second internal partition can be allowed in 5 or third internal partition in the close outlet of 6 installations as needed
One section of cylinder 3 inside.Outlet end, which can be, exports 3 total length half of cylinder to 3 total length three of cylinder apart from cylinder 3
/ mono- section.The outlet end of cylinder 3 has slight taper, and the internal partition that can make way for outlet end is adopted during installation
With interference fit, it can be in close contact completely with 3 inner wall of cylinder, loosen it will not in use, abnormal sound will not be generated.
It is provided with ring flange in air inlet pipe 20, there is step 22 on ring flange, and be provided with heat resisting gasket in step 22；
Cylinder 3 is separated into four anechoic chambers 6 in 5 and third internal partition in the 4, second internal partition by the first internal partition.
First bloop 10, the second bloop 11 and the 4th bloop 13 are arranged in the second anechoic chamber 24, third noise reduction
Hole 12 is arranged in the first anechoic chamber 23, and the 5th bloop 14 is arranged in third anechoic chamber 25；The disengaging of first hush pipe 7
Mouth both ends are separately positioned on the first anechoic chamber 23 and the second anechoic chamber 24, the inlet and outlet two of the second hush pipe 8 and third hush pipe 9
End is separately positioned on the first anechoic chamber 23 and the 4th anechoic chamber 26.
Third hush pipe 9 can directly be connect with the air inlet of after silencer, while can also be in the first anechoic chamber 23
One partition is set, will be isolated between third hush pipe 9 and other two hush pipe.Due to the third noise reduction of third hush pipe 9
Hole 12 will not reveal air-flow, and the quantity and aperture relative tubular diameter of stomata 17 are smaller, thus most of air-flow still through pipeline into
Enter into the 4th anechoic chamber 26, then via the first anechoic chamber 23 is entered after the first hush pipe 7, is finally sent by the first hush pipe 7
Enter in the second hush pipe 8, the outlet of the second hush pipe 8 connects with the exhaust pipe 21 of after silencer.
First internal partition the 4, second internal partition be provided on 5 and third internal partition hemispheric flange 27 and
Bulkhead through-hole 28；Sound-absorbing material 29 is filled between the first inner partition and the second inner partition.Hemispheric flange 27 is conducive to mention
For bigger surface area, so that order of reflection and path of the noise sound wave on partition are more, and then the strong of sound wave can be reduced
Degree, plays certain sound deadening.Bulkhead through-hole 28 is for allowing hush pipe to pass through.
In the utility model preferred embodiment, annular groove 30 is offered on the inner wall of bulkhead through-hole 28, in annular groove 30
Heat resisting gasket is installed, can be conducive to so more stable after hush pipe is installed.
Mounting bracket is fixed on cylinder 3；Mounting bracket includes the support frame 35 of the connecting plate of T shape, connecting rod 34, U-shaped
And clip 37；The vertical section 38 of connecting rod is provided with two rows of screw holes, and horizontal segment 33 is provided with through hole；Connecting rod 34 is by passing through
Horizontal segment is connect with support frame by nut after passing through the hole at the top of support frame after through-hole；2 elasticity are configured in connecting rod
Cushion block 36, one of elastic cushion block are arranged on connecting plate, another setting is on the support frame.
Although being described in detail in conjunction with attached drawing to specific embodiment of the present utility model, should not be construed as pair
The restriction of the protection scope of this patent.In range described by claims, those skilled in the art are without creative labor
The dynamic various modifications that can be made and deformation still belong to the protection scope of this patent.
Claims (4)
1. a kind of automobile engine silencing means, it is characterised in that：Including after silencer and mounting bracket；
The after silencer includes cylinder, is mounted on intracorporal first internal partition of cylinder, the second internal partition, third internal partition and
One hush pipe, the second hush pipe and third hush pipe；
The middle section of first hush pipe and the second hush pipe is respectively arranged with the first bloop and the second bloop；The third
It is provided with third bloop, the 4th bloop and the 5th bloop on hush pipe, and is provided in third bloop outer periphery
Resistive silencing cavity, the resistive silencing cavity is interior to be arranged sound absorbing layer, and the rear end of resistive silencing cavity is provided with stomata and spoiler；
The both ends of the cylinder are provided with the end cap for sealing cylinder, and are respectively arranged with air inlet pipe and row on the end cap at both ends
Tracheae；The outlet end of the cylinder has 0.5 degree~1.0 degree of taper, in a circular table shape；
The cylinder is separated into four anechoic chambers by the first internal partition, the second internal partition and third internal partition；
First bloop, the second bloop and the 4th bloop are arranged in the second anechoic chamber, and the setting of third bloop exists
In first anechoic chamber, the 5th bloop is arranged in third anechoic chamber；The inlet and outlet both ends of first hush pipe are respectively set
In the first anechoic chamber and the second anechoic chamber, the inlet and outlet both ends of the second hush pipe and third hush pipe are separately positioned on the first noise reduction
Room and the 4th anechoic chamber；
The mounting bracket is fixed on cylinder；The mounting bracket include the connecting plate of T shape, connecting rod, U-shaped support frame with
And clip；The vertical section of the connecting rod is provided with two rows of screw holes, and horizontal segment is provided with through hole；After connecting rod passes through through hole
Horizontal segment is connect with support frame by nut behind the hole at the top of support frame；2 elastic cushions are configured in the connecting rod
Block, one of elastic cushion block are arranged on connecting plate, another setting is on the support frame.
2. automobile engine silencing means as described in claim 1, it is characterised in that：First internal partition, in second every
Hemispheric flange and bulkhead through-hole are provided on plate and third internal partition；Described the first inner partition and the second inner partition it
Between be filled with sound-absorbing material.
3. automobile engine silencing means as described in claim 1, it is characterised in that：Flange is provided in the air inlet pipe
Disk has step on the ring flange, and is provided with heat resisting gasket in step.
4. automobile engine silencing means as claimed in claim 2, it is characterised in that：It is opened up on the inner wall of the bulkhead through-hole
There is annular groove, heat resisting gasket is installed in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820458475.9U CN208138026U (en) | 2018-03-30 | 2018-03-30 | A kind of automobile engine silencing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820458475.9U CN208138026U (en) | 2018-03-30 | 2018-03-30 | A kind of automobile engine silencing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208138026U true CN208138026U (en) | 2018-11-23 |
Family
ID=64291758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820458475.9U Expired - Fee Related CN208138026U (en) | 2018-03-30 | 2018-03-30 | A kind of automobile engine silencing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208138026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118202A (en) * | 2019-06-03 | 2019-08-13 | 宁波丰沃涡轮增压系统有限公司 | High temperature resistant resistive muffler after a kind of booster pressure |
| CN110415672A (en) * | 2019-06-26 | 2019-11-05 | 江苏中伟机械制造有限公司 | A kind of decompression silencer |
-
2018
- 2018-03-30 CN CN201820458475.9U patent/CN208138026U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118202A (en) * | 2019-06-03 | 2019-08-13 | 宁波丰沃涡轮增压系统有限公司 | High temperature resistant resistive muffler after a kind of booster pressure |
| CN110415672A (en) * | 2019-06-26 | 2019-11-05 | 江苏中伟机械制造有限公司 | A kind of decompression silencer |
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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: 20181123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |