CN208351924U - A kind of full range impedance composite muffler and its automobile - Google Patents
A kind of full range impedance composite muffler and its automobile Download PDFInfo
- Publication number
- CN208351924U CN208351924U CN201820627608.0U CN201820627608U CN208351924U CN 208351924 U CN208351924 U CN 208351924U CN 201820627608 U CN201820627608 U CN 201820627608U CN 208351924 U CN208351924 U CN 208351924U
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- Prior art keywords
- chambers
- partition
- acoustical cotton
- chamber
- full range
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Abstract
The utility model discloses a kind of full range impedance composite muffler and its automobiles, including first connecting portion, the first noise elimination portion, the second noise elimination portion, second connecting portion, it is characterized in that, first noise elimination portion is by four noise elimination cavities, one chamber, two chambers, three chambers, four chambers composition, wherein a chamber fills the first acoustical cotton, two chambers fill the second acoustical cotton, three chambers are expansion cavity, and four chambers fill third acoustical cotton；First acoustical cotton, the second acoustical cotton, third acoustical cotton density are all different.Equally distributed through-hole is provided in first partition in one chamber, second partition, third partition not aperture, a chamber is set there was only small part air-flow process, four chambers are almost without air-flow process, to reduce the temperature of a chamber, four chambers, that reduces rubber mounting block radiates to obtain heat, extend the service life of rubber mounting block, pipe increases casing after silencer intermediate tube and silencer, interrupts standing wave, reduces noise.
Description
Technical field
The utility model relates to a kind of silencers, more particularly to a kind of full range impedance composite muffler and its automobile.
Background technique
Silencer be mounted on the airflow channel of air powered equipment (such as internal combustion engine, air blower and air compressor machine) or into,
The device of reduction noise in exhaust system.Silencer can reduce noise, rationalization's air-flow and Temperature Distribution.It is that control is made an uproar
The effective tool of sound.Normal straight tube perforation silencer, structure is the straight tube of an endcapped, and many aperture masters are drilled on tube wall
If using the frequency spectrum of jet noise as foundation, if keeping the gross area of spout constant and being replaced with many small spouts, when
When air-flow is through small holes, the frequency spectrum of jet noise will shift to high frequency or hyperfrequency, make the audible sound constituent reduction in frequency spectrum, but
It is to still remain sound deadening capacity deficiency or exist to pass through frequency.Meanwhile the less consideration silencer internal structure pair of arc exhaust system
The influence of system temperature field, there are the excessively high problems of rubber mounting deblocking temperature.
Utility model content
In view of this, the present invention provides a kind of full range impedance composite muffler and its automobile, very good solutions
Sound deadening capacity is insufficient or there are problems that passing through frequency, while by the way that silencer muffler partition plate and core pipe is rationally arranged, adjustment is properly
Acoustical cotton density, the number of openings and position, while solving the problems, such as that rubber mounting deblocking temperature is excessively high.
To achieve the above object, the utility model provides the following technical solutions:
A kind of full range impedance composite muffler silencer, including first connecting portion, the first noise elimination portion, the second noise elimination portion,
Second connecting portion, which is characterized in that first noise elimination portion is made of four noise elimination cavities, a chamber, two chambers, three chambers, four chambers, wherein
One chamber fills the first acoustical cotton, and two chambers fill the second acoustical cotton, and three chambers are expansion cavity, and four chambers fill third acoustical cotton；
First acoustical cotton, the second acoustical cotton, third acoustical cotton density are all different.
Preferably, a kind of full range impedance composite muffler, four noise elimination cavities are by drive end bearing bracket, the first core pipe, first
Partition, second partition, the second core pipe, third partition, rear end cap, silencer cylinder composition.
Preferably, a kind of full range impedance composite muffler, first acoustical cotton, first partition, the second acoustical cotton,
Two partitions, third partition, third acoustical cotton are set gradually along gas flow direction.
Preferably, a kind of full range impedance composite muffler, there is first partition in a chamber and two chambers, in first partition
It is provided with through-hole.
Preferably, a kind of full range impedance composite muffler, two chamber and three chambers have second partition, and three chambers and four chambers have
Third partition, second partition and third partition not aperture.
Preferably, a kind of full range impedance composite muffler, in the first core pipe outer ring and four chambers in a chamber, two chambers
The second core pipe outer ring be provided with equally distributed through-hole.
Preferably, a kind of full range impedance composite muffler, second noise elimination portion by silencer intermediate tube, casing, disappear
Pipe forms after sound device.
Preferably, a kind of full range impedance composite muffler, after described sleeve pipe is mounted on silencer intermediate tube and silencer
Between pipe.
Preferably, a kind of automobile, the automobile include the use of any of the above-described full range impedance composite muffler stated.
It can be seen from the above technical scheme that a kind of full range impedance composite muffler provided by the utility model and its
Automobile, silencer is by drive end bearing bracket, the first core pipe, first partition, second partition, the second core pipe, third partition, rear end cap, noise elimination
Device cylinder forms four noise elimination cavities, is a chamber, two chambers, three chambers, four chambers respectively, and three chambers are expansion cavity, a chamber, two chambers, four chambers point
Not Tian Chong different densities acoustical cotton, reach to the absorption of the volume of different frequency, have silencer in different frequency sections larger
Sound deadening capacity, avoid passing through frequency, can preferably solve the problems, such as to eliminate the noise so insufficient or pass through frequency, wherein first
Equally distributed through-hole is provided on partition, second partition, third partition not aperture make a chamber only have small part air-flow to pass through, and four
Chamber is almost without air-flow process, to reduce the temperature of a chamber, four chambers, that reduces rubber mounting block radiates to obtain heat, temperature compared with
Low, the service life extends；Meanwhile because managing too long after silencer intermediate tube and silencer, standing wave can be generated, in silencer intermediate tube
And casing is installed to interrupt standing wave between pipe after silencer, reduce noise.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of silencer provided by the embodiment of the utility model；
Fig. 2 is the first noise elimination of silencer provided by the embodiment of the utility model portion structural schematic diagram；
Fig. 3 is the second noise elimination of silencer provided by the embodiment of the utility model portion structural schematic diagram；
Fig. 4 is silencer first partition structural schematic diagram provided by the embodiment of the utility model；
Fig. 5 is second and third diaphragm structure schematic diagram of silencer provided by the embodiment of the utility model；
Wherein, 1 is first connecting portion, and 2 be the first noise elimination portion, and 21 be drive end bearing bracket, and 22 be the first core pipe, and 215 inhale for first
Sound cotton, 23 be first partition, and 216 be the second acoustical cotton, and 24 be second partition, and 25 be silencer cylinder, and 26 be the second core pipe, 27
For third partition, 217 be third acoustical cotton, and 28 be rear end cap, and 29 be rubber mounting block, and 210 be a chamber, and 211 be two chambers, 213
For three chambers, 214 be four chambers, and 3 be the second noise elimination portion, and 31 be silencer intermediate tube, and 32 be casing, and 33 is manage after silencer, and 4 be the
Two interconnecting pieces.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of silencer provided by the embodiment of the utility model, comprising: first connecting portion 1, drive end bearing bracket 21, the first core pipe
22, the first acoustical cotton 215, first partition 23, the second acoustical cotton 216, second partition 24, silencer cylinder 25, the second core pipe 26,
Third partition 27, third acoustical cotton 217, rear end cap 28, rubber mounting block 29, a chamber 210, two chambers 211, three chambers 213, four chambers
214, silencer intermediate tube 31, casing 32, pipe 33 after silencer, second connecting portion 4.
In the present invention, silencer by drive end bearing bracket 21, rear end cap 28, first partition 23, second partition 24, third every
Plate 27, silencer cylinder 25 and the first core pipe 22, the second core pipe 26 form four noise elimination cavities, be respectively a chamber 210, two chambers 211,
Three chambers 213, four chambers 214, wherein three chambers 213 are expansion cavity, a chamber 210, two chambers 211, four chambers 214 fill different densities respectively
Acoustical cotton, a chamber 210 fill the first acoustical cotton 215, and two chambers 211 fill the second acoustical cotton 216, and four chambers 214 fill third sound-absorbing
Cotton 217, when having in a chamber 210, when passing through frequency, two chambers 211 can absorb again to frequency is passed through, passing through frequently in two chambers 211
Rate can absorb again in four chambers 214, so that silencer is had biggish sound deadening capacity in different frequency sections, avoid passing through frequency, can
Solve the problems, such as that noise elimination is insufficient or passes through frequency with better.
In the present invention, it is provided with the hole being evenly arranged in first partition 23, on second partition 24, third partition 27
Not aperture makes a chamber 210 only have small part air-flow to pass through, and four chambers 214 are almost without air-flow process.To reduce a chamber 210, four
The temperature of chamber 214, that reduces rubber mounting block 29 radiates to obtain heat, and temperature is lower, and the service life extends.
In the present invention, pipe 33 can generate because of the too long reason of length after silencer intermediate tube 31 and silencer
Standing wave is installing casing 32 to interrupt standing wave, is reducing noise between pipe 33 after silencer intermediate tube 31 and silencer.
In the present invention, 210 part of a chamber of the first core pipe 22 is uniformly provided with hole, wherein the first core pipe 22 1 weeks
Hole is 24, and 24 rows amount to 576 holes, and two chambers, 211 part of the second core pipe 26 is uniformly provided with hole, wherein the first core pipe 22
One week hole is 23, and 11 rows amount to 253 holes, and four chambers, 214 part of the second core pipe 26 is uniformly provided with hole, wherein the second core
26 1 collar aperture of pipe is 24, and 24 rows amount to 576 holes.
In the present invention, acoustical cotton and partition are according to the first acoustical cotton 215, first partition 23, the second acoustical cotton
216, second partition 24, third partition 27, third acoustical cotton 217 are set gradually along gas flow direction, the first acoustical cotton 215,
Second acoustical cotton 216 is filled in the space between the first core pipe 22 and silencer cylinder 25, and third acoustical cotton 217 is filled in
In space between two core pipes 26 and silencer cylinder 25, first partition 23 divides the first acoustical cotton 215 and the second acoustical cotton 216
It separates.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (9)
1. a kind of full range impedance composite muffler, including first connecting portion, the first noise elimination portion, the second noise elimination portion, the second connection
Portion, which is characterized in that first noise elimination portion is by four noise elimination cavities, a chamber, two chambers, three chambers, four chambers composition, wherein a chamber is filled
First acoustical cotton, two chambers fill the second acoustical cotton, and three chambers are expansion cavity, and four chambers fill third acoustical cotton；
First acoustical cotton, the second acoustical cotton, third acoustical cotton density are all different.
2. full range impedance composite muffler according to claim 1, which is characterized in that four noise elimination cavities are by front end
Lid, the first core pipe, first partition, second partition, the second core pipe, third partition, rear end cap, silencer cylinder composition.
3. full range impedance composite muffler according to claim 1, which is characterized in that first acoustical cotton, first
Partition, the second acoustical cotton, second partition, third partition, third acoustical cotton are set gradually along gas flow direction.
4. full range impedance composite muffler according to claim 3, which is characterized in that have in a chamber and two chambers
One partition is provided with equally distributed through-hole in first partition.
5. full range impedance composite muffler according to claim 3, which is characterized in that two chamber and three chambers have second
Partition, three chambers and four chambers have third partition, second partition and third partition not aperture.
6. full range impedance composite muffler according to claim 1, which is characterized in that in a chamber, two chambers
The second core pipe in one core pipe and four chambers is provided with equally distributed through-hole.
7. full range impedance composite muffler according to claim 1, which is characterized in that second noise elimination portion is by eliminating the noise
Pipe forms after device intermediate tube, casing, silencer.
8. full range impedance composite muffler according to claim 7, which is characterized in that described sleeve pipe is mounted on silencer
After intermediate tube and silencer between pipe.
9. a kind of automobile, it is characterised in that the automobile includes that any full range impedance composite of claim 1 to 8 is eliminated the noise
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820627608.0U CN208351924U (en) | 2018-04-28 | 2018-04-28 | A kind of full range impedance composite muffler and its automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820627608.0U CN208351924U (en) | 2018-04-28 | 2018-04-28 | A kind of full range impedance composite muffler and its automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208351924U true CN208351924U (en) | 2019-01-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820627608.0U Expired - Fee Related CN208351924U (en) | 2018-04-28 | 2018-04-28 | A kind of full range impedance composite muffler and its automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208351924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470561A (en) * | 2018-04-28 | 2018-08-31 | 力帆实业(集团)股份有限公司 | A kind of full range impedance composite muffler |
-
2018
- 2018-04-28 CN CN201820627608.0U patent/CN208351924U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470561A (en) * | 2018-04-28 | 2018-08-31 | 力帆实业(集团)股份有限公司 | A kind of full range impedance composite 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20210428 |