CN207864024U - Multi-chamber multi-mode silencer - Google Patents
Multi-chamber multi-mode silencer Download PDFInfo
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- CN207864024U CN207864024U CN201820195696.1U CN201820195696U CN207864024U CN 207864024 U CN207864024 U CN 207864024U CN 201820195696 U CN201820195696 U CN 201820195696U CN 207864024 U CN207864024 U CN 207864024U
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- Prior art keywords
- chamber
- partition
- air inlet
- inlet pipe
- coupling tube
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Abstract
The utility model provides a kind of multi-chamber multi-mode silencer, shell including sealing, the interior partition boards for carrying trepanning by three pieces of shell, is divided into four cavitys, second chamber between first partition and second partition is filled with noise elimination cotton, is third chamber between second partition and third partition board；Air inlet pipe passes through the through-hole and second chamber and third chamber of outer wall, tail end closing of the air inlet pipe far from inlet end；Coupling tube passes through second chamber and third chamber to be located at the first chamber and the 4th chamber of shell end positions, and the end of coupling tube extend into first chamber and the 4th chamber a distance；Escape pipe passes through second chamber and third chamber to be connected to first chamber, and escape pipe is also connected to by the through-hole of outer wall with second chamber；It is equipped with expansion resonantron in one or more of coupling tube, escape pipe and air inlet pipe.By the ingenious combination of above structure, higher medium-high frequency and order noise acoustical absorptivity are realized.
Description
Technical field
The utility model is related to silencer field, especially a kind of multi-chamber multi-mode silencer.
Background technology
With the fast development of society, requirement of the people to comfort in life is also being continuously improved.Wherein engineering machinery
Noise essentially from engine, noise pollution can be substantially reduced using silencing apparatus reasonable for structure, this allows for eliminating the noise
Device is widely used in engineering machinery.
One of the core component of automobile engine to exhaust noise noise reduction is exactly silencer, it is by offsetting, hindering to be vented
Fluctuation pressure eliminates noise.The technical solution of existing four chambers silencer is：Including there are one shell, in the shell
Core pipe and air inlet pipe and escape pipe, the shell is by front baffle and rear bulkhead and middle partition board with holes by inner space along air inlet side
To the first, second, third and fourth four chambers are divided into, wherein being filled with noise elimination cotton, air inlet pipe and an air outlet pipe and mistake inside the second chamber
Cross that pipe both passes through front baffle in shell and middle partition board and rear bulkhead, escape pipe and coupling tube are equipped with expansion on specific pipeline section
Resonantron is opened, air inlet pipe and an air outlet pipe is provided with through-hole on the tube wall of second chamber, and air inlet pipe is in the tube wall of third chamber
On be also equipped with through-hole.
Applicant has found that existing multi-cavity sound attenuation device cannot be good in medium-high frequency and the performance of order noise when realizing this patent
Good noise elimination effect.
Such as the structure of 205936746 U of patent document CN, it is not good enough in the noise elimination performance of medium-high frequency.And with turbine
Engine with supercharger is popularized, and secondary speed is up to 12000 turns from 3000 turns, and medium-high frequency especially high frequency noise is in growth
Trend, this puts forward higher requirements the structure improvement of silencer.
Invention content
The technical problem to be solved by the utility model is to provide a kind of multi-chamber multi-mode silencers, can further drop
Low noise pollutes, and can especially reduce the noise of the vehicle or engineering machinery using turbocharged engine.
In order to solve the above technical problems, technical solution used by the utility model is：A kind of multi-chamber multi-mode noise elimination
Device, includes the shell of sealing, and the partition boards for carrying trepanning by three pieces in shell are divided into four cavitys, in first partition and the
Second chamber between two partition boards is filled with noise elimination cotton, is third chamber between second partition and third partition board；
Air inlet pipe passes through the through-hole and second chamber and third chamber of outer wall, tail end envelope of the air inlet pipe far from inlet end
It closes；
Coupling tube is located at the first chamber and the 4th chamber of shell end positions across second chamber and third chamber,
The end of coupling tube extend into first chamber and the 4th chamber a distance；
Escape pipe passes through second chamber and third chamber to be connected to first chamber, and escape pipe also passes through the through-hole of outer wall and the
Two chambers；
It is equipped with expansion resonantron in one or more of coupling tube, escape pipe and air inlet pipe.
In preferred scheme, it is equipped with the trepanning of array arrangement on first partition, second partition and third partition board, is located at the
The open pore size of one partition board is more than the open pore size on second partition and third partition board.
In preferred scheme, the gas outlet of air inlet pipe air inlet and escape pipe is respectively positioned on the position of the 4th chamber；
The volume of each chamber is followed successively by second chamber, third chamber, first chamber, the 4th chamber from small to large.
In preferred scheme, the expansion resonantron is multiple, the diameter of each expansion resonantron is identical and length not
Together.
In preferred scheme, second chamber and air inlet pipe, escape pipe constitute resistive sound absorption structure；
Third chamber, the 4th chamber and air inlet pipe constitute interference noise elimination structure；
Coupling tube extend into first chamber and the structure of the 4th chamber a distance constitutes resonant silencing structure；
Third chamber constitutes expansion sound absorption structure with air inlet pipe；
It expands resonantron and constitutes high frequency noise-reducing structure.
In preferred scheme, air inlet pipe and an air outlet pipe is located at the both sides of coupling tube；
The distance that the end of coupling tube extend into first chamber is less than the distance for extending into the 4th chamber；
The distance that the end of coupling tube extend into the 4th chamber is the 1/2 of the 4th chamber length.
A kind of multi-chamber multi-mode silencer, it include interference noise elimination structure, resistive sound absorption structure, resonant silencing structure,
Expand the combination of sound absorption structure and high frequency noise-reducing structure；
The interference noise elimination structure includes two chambers that the connection of trepanning partition board is carried by polylith, and a pipeline passes through outer
Multiple holes of wall and one of chamber；
The resistive sound absorption structure includes two chambers by being formed with trepanning partition board, is filled in the chamber
Noise elimination cotton, multiple holes and the chamber of two pipelines by outer wall；
The resonant silencing structure is equipped with including an end face carries trepanning partition board, the closed cavity in remaining end face, and one
The exhaust end of pipeline extend into a distance in the cavity；
The expansion sound absorption structure includes the chambers formed with trepanning partition board by two pieces, and a pipeline passes through outer
Multiple holes of wall and the chamber；
The high frequency noise-reducing structure includes the sealing cover being arranged in pipeline outer wall, between sealing cover and pipeline outer wall
It forms a cavity and fills acoustical cotton in the cavity, pipeline outer wall in the range of sealing cover coats is equipped with multiple logical
Hole.
In preferred scheme, the pipeline is three, including air inlet pipe, escape pipe and coupling tube.
In preferred scheme, the chamber is four, and four chambers are located in the shell of sealing, is carried and is opened by three
The partition board in hole is separated and is interconnected.
In preferred scheme, high frequency noise-reducing structure is two；
Two high frequency noise-reducing structures are located on different pipelines；
The length of two high frequency noise-reducing structures is different；
The high frequency noise of different frequency range is eliminated respectively.
A kind of multi-chamber multi-mode silencer provided by the utility model is disappeared by using above structure using interference
Acoustic form, resistive sound absorption structure, resonant silencing structure, expansion sound absorption structure and high frequency noise-reducing structure combination muffled mode it is skilful
Higher medium-high frequency and order noise acoustical absorptivity are realized in wonderful combination.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is the main structure diagram of the utility model.
Fig. 2 is the structural schematic diagram of first partition in the utility model.
Fig. 3 is the structural schematic diagram of second partition in the utility model.
Fig. 4 is the structural schematic diagram of third partition board in the utility model.
Fig. 5 is the present invention looks up structural representation of the utility model.
In figure：Shell 1, air inlet pipe 2, escape pipe 3, first partition 4, second partition 5, third partition board 6, first chamber 7, the
Two chambers 8, third chamber 9, the 4th chamber 10, noise elimination cotton 11, coupling tube 12, through-hole 13, long expansion resonantron 14, short expansion is altogether
Vibration tube 15, backpack body 16, left end cap 17, right end cap 18.
Specific implementation mode
Embodiment 1：
A kind of multi-chamber multi-mode silencer, includes the shell 1 of sealing, the partition boards for carrying trepanning by three pieces in shell 1,
It is divided into four cavitys, the second chamber 8 between first partition 4 and second partition 5 is filled with noise elimination cotton 11, it is preferred that disappears
Sound cotton 11 uses glass fibre acoustical cotton, is third chamber 9 between second partition 5 and third partition board 6；
Air inlet pipe 2 is connected to by the through-hole of outer wall with second chamber 8 and third chamber 9, tail of the air inlet pipe 2 far from inlet end
End seal is closed；
Coupling tube 12 passes through second chamber 8 be connected to the first chamber 7 for being located at 1 end positions of shell and the with third chamber 9
The end of four chambers 10, coupling tube 12 extend into 10 a distance of first chamber 7 and the 4th chamber；
Escape pipe 3 passes through second chamber 8 and third chamber 9 to be connected to first chamber 7, and escape pipe 3 also passes through the logical of outer wall
Hole is connected to second chamber 8；
It is equipped with expansion resonantron in one or more of coupling tube 12, escape pipe 3 and air inlet pipe 2.Through the above structure
Combination, improve medium-high frequency and order noise acoustical absorptivity.Using the structure of the utility model, can realize 400kg/ hours
Processing capacity.It is especially preferable to the erasure effect of turbocharged engine.The diameter of air inlet pipe 2, escape pipe 3 and coupling tube 12 exists
Between 45-55mm.
In preferred scheme, the trepanning of array arrangement, position are equipped on first partition 4, second partition 5 and third partition board 6
It is more than the open pore size on second partition 5 and third partition board 6 in the open pore size of first partition 4.Thus structure advantageously reduces
Vapour lock.
In preferred scheme, the gas outlet of 2 air inlet of air inlet pipe and escape pipe 3 is respectively positioned on the position of the 4th chamber 10；
The volume of each chamber is followed successively by second chamber 8, third chamber 9, first chamber 7, the 4th chamber 10 from small to large.
The volume that 4th chamber 10 is arranged is larger, is conducive to the effect for improving resonant silencing and interference is eliminated the noise.
In preferred scheme, the expansion resonantron is multiple, for example, the diameter of each expansion resonantron is identical and grows
Degree is different.Thus structure realizes the high frequency noise-reducing structure of different-waveband.Expand resonantron a diameter of 70mm, length be 100 ~
200mm。
In preferred scheme, second chamber 8 and air inlet pipe 2, escape pipe 3 constitute resistive sound absorption structure；
Third chamber 9, the 4th chamber 10 and air inlet pipe 2 constitute interference noise elimination structure；
The structure that coupling tube 12 extend into 10 a distance of first chamber 7 and the 4th chamber constitutes resonant silencing structure；
Third chamber 9 constitutes expansion sound absorption structure with air inlet pipe 2；
It expands resonantron and constitutes high frequency noise-reducing structure.
In preferred scheme, air inlet pipe 2 and escape pipe 3 are located at the both sides of coupling tube 12；Both thus structure, reduce
Between indirect influence.
The distance that the end of coupling tube 12 extend into first chamber 7 is less than the distance for extending into the 4th chamber 10；Thus it ties
Structure improves the efficiency of resonant silencing, and balance is formed between volume and noise elimination effect.
The distance that the end of coupling tube 12 extend into the 4th chamber 10 is the 1/2 of 10 length of the 4th chamber.
Embodiment 2：
In Fig. 1, a kind of multi-chamber multi-mode silencer, it includes interference noise elimination structure, resistive sound absorption structure, resonating disappears
Acoustic form, the combination for expanding sound absorption structure and high frequency noise-reducing structure；
The interference noise elimination structure includes two chambers that the connection of trepanning partition board is carried by polylith, and a pipeline passes through outer
Multiple holes of wall and one of chamber；
The resistive sound absorption structure includes two chambers by being formed with trepanning partition board, is filled in the chamber
Noise elimination cotton 11, multiple holes and the chamber of two pipelines by outer wall；
The resonant silencing structure is equipped with including an end face carries trepanning partition board, the closed cavity in remaining end face, and one
The exhaust end of pipeline extend into a distance in the cavity；
The expansion sound absorption structure includes the chambers formed with trepanning partition board by two pieces, and a pipeline passes through outer
Multiple holes of wall and the chamber；
The high frequency noise-reducing structure includes the sealing cover being arranged in pipeline outer wall, between sealing cover and pipeline outer wall
It forms a cavity and fills acoustical cotton in the cavity, pipeline outer wall in the range of sealing cover coats is equipped with multiple logical
Hole.
In preferred scheme, the pipeline is three, including air inlet pipe 2, escape pipe 3 and coupling tube 12.
In preferred scheme, the chamber is four, and four chambers are located in the shell 1 of sealing, are carried by three
The partition board of trepanning is separated and is interconnected.
In preferred scheme, high frequency noise-reducing structure is two；
Two high frequency noise-reducing structures are located on different pipelines；
The length of two high frequency noise-reducing structures is different；
The high frequency noise of different frequency range is eliminated respectively.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, under the premise of not conflicting mutually, every technical characteristic that the utility model is recorded can be combined with each other.The guarantor of the utility model
Being equal for technical characteristic in the technical solution that range should be recorded with claim, including the technical solution of claim record is protected to replace
It is protection domain to change scheme.Equivalent replacement i.e. within this range is improved, and is also within the protection scope of the utility model.
Claims (10)
1. a kind of multi-chamber multi-mode silencer, includes the shell of sealing（1）, shell（1）It is interior by three pieces with trepanning every
Plate is divided into four cavitys, it is characterized in that：In first partition（4）With second partition（5）Between second chamber（8）It is filled with
Noise elimination cotton（11）, second partition（5）With third partition board（6）Between be third chamber（9）；
Air inlet pipe（2）Pass through the through-hole and second chamber of outer wall（8）With third chamber（9）Connection, air inlet pipe（2）Far from inlet end
Tail end closing；
Coupling tube（12）Across second chamber（8）With third chamber（9）Connection is located at shell（1）The first chamber of end positions
（7）With the 4th chamber（10）, coupling tube（12）End extend into first chamber（7）With the 4th chamber（10）A distance；
Escape pipe（3）Across second chamber（8）With third chamber（9）With first chamber（7）Connection, escape pipe（3）Also pass through outer
The through-hole and second chamber of wall（8）Connection；
In coupling tube（12）, escape pipe（3）And air inlet pipe（2）One or more of be equipped with expansion resonantron.
2. a kind of multi-chamber multi-mode silencer according to claim 1, it is characterized in that：First partition（4）, second partition
（5）With third partition board（6）On be equipped with array arrangement trepanning, be located at first partition（4）Open pore size be more than second partition
（5）With third partition board（6）On open pore size.
3. a kind of multi-chamber multi-mode silencer according to claim 1, it is characterized in that：Air inlet pipe（2）Air inlet and go out
Tracheae（3）Gas outlet be respectively positioned on the 4th chamber（10）Position；
The volume of each chamber is followed successively by second chamber from small to large（8）, third chamber（9）, first chamber（7）, the 4th chamber
（10）.
4. a kind of multi-chamber multi-mode silencer according to claim 1, it is characterized in that：The expansion resonantron is more
A, the diameter of each expansion resonantron is identical and length is different.
5. a kind of multi-chamber multi-mode silencer according to claim 1, it is characterized in that：Second chamber（8）And air inlet pipe
（2）, escape pipe（3）Constitute resistive sound absorption structure；
Third chamber（9）, the 4th chamber（10）And air inlet pipe（2）Constitute interference noise elimination structure；
Coupling tube（12）It extend into first chamber（7）With the 4th chamber（10）The structure of a distance constitutes resonant silencing structure；
Third chamber（9）With air inlet pipe（2）Constitute expansion sound absorption structure；
It expands resonantron and constitutes high frequency noise-reducing structure.
6. a kind of multi-chamber multi-mode silencer according to claim 1, it is characterized in that：Air inlet pipe（2）And escape pipe（3）
It is located at coupling tube（12）Both sides；
Coupling tube（12）End extend into first chamber（7）Distance be less than extend into the 4th chamber（10）Distance；
Coupling tube（12）End extend into the 4th chamber（10）Distance be the 4th chamber（10）The 1/2 of length.
7. a kind of multi-chamber multi-mode silencer, it is characterized in that：It includes interference noise elimination structure, resistive sound absorption structure, resonating disappears
Acoustic form, the combination for expanding sound absorption structure and high frequency noise-reducing structure；
The interference noise elimination structure includes two chambers that the connection of trepanning partition board is carried by polylith, and a pipeline passes through outer wall
Multiple holes and one of chamber；
The resistive sound absorption structure includes two chambers by being formed with trepanning partition board, filled with noise elimination in the chamber
Cotton（11）, multiple holes and the chamber of two pipelines by outer wall；
The resonant silencing structure includes that an end face is equipped with trepanning partition board, the closed cavity in remaining end face, a pipeline
Exhaust end extend into a distance in the cavity；
The expansion sound absorption structure includes the chambers formed with trepanning partition board by two pieces, and a pipeline passes through outer wall
Multiple holes and the chamber；
The high frequency noise-reducing structure includes the sealing cover being arranged in pipeline outer wall, is formed between sealing cover and pipeline outer wall
One cavity and acoustical cotton is filled in the cavity, pipeline outer wall in the range of sealing cover coats is equipped with multiple through-holes.
8. a kind of multi-chamber multi-mode silencer according to claim 7, it is characterized in that：The pipeline is three, packet
Include air inlet pipe（2）, escape pipe（3）And coupling tube（12）.
9. a kind of multi-chamber multi-mode silencer according to claim 7 or 8, it is characterized in that：The chamber is four,
Four chambers are located at the shell of sealing（1）It is interior, it separates and interconnects by three partition boards with trepanning.
10. a kind of multi-chamber multi-mode silencer according to claim 7, it is characterized in that：High frequency noise-reducing structure is two；
Two high frequency noise-reducing structures are located on different pipelines；
The length of two high frequency noise-reducing structures is different；
The high frequency noise of different frequency range is eliminated respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820195696.1U CN207864024U (en) | 2018-02-05 | 2018-02-05 | Multi-chamber multi-mode silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820195696.1U CN207864024U (en) | 2018-02-05 | 2018-02-05 | Multi-chamber multi-mode silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864024U true CN207864024U (en) | 2018-09-14 |
Family
ID=63456574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820195696.1U Expired - Fee Related CN207864024U (en) | 2018-02-05 | 2018-02-05 | Multi-chamber multi-mode silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417194A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Muffler |
-
2018
- 2018-02-05 CN CN201820195696.1U patent/CN207864024U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417194A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Muffler |
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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: 20180914 Termination date: 20200205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |