CN208441906U - Muffler and automobile - Google Patents
Muffler and automobile Download PDFInfo
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- CN208441906U CN208441906U CN201820739662.4U CN201820739662U CN208441906U CN 208441906 U CN208441906 U CN 208441906U CN 201820739662 U CN201820739662 U CN 201820739662U CN 208441906 U CN208441906 U CN 208441906U
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- tube section
- direct tube
- muffler
- hush pipe
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Abstract
The utility model discloses a kind of mufflers, including staving, silencing cotton and hush pipe；Staving both ends are respectively equipped with noise reduction end cap, are respectively equipped with air inlet and air outlet on two noise reduction end caps；Silencing cotton is arranged in staving；Hush pipe is in silencing cotton；Hush pipe includes the first direct tube section being sequentially communicated, funnel section and the second direct tube section, and the diameter of the second direct tube section is less than the first direct tube section；The diameter of funnel section is gradually reduced by the first direct tube section to the second direct tube section；Hush pipe is two, and second direct tube section of the two is connected to form silencers channel；First direct tube section of one hush pipe is plugged in air inlet, and the first direct tube section of another hush pipe is plugged in gas outlet.In the muffler, the aperture of silencers channel first reduces to increase afterwards, allows airflow into after silencers channel first to compress and expand afterwards, has biggish divergence ratio, strong to the noise dampening efficiency of low-frequency noise.A kind of automobile using above-mentioned muffler is also disclosed in the utility model, has the effect of that low frequency noise is small.
Description
Technical field
The utility model relates to Mechanical Industry Technology fields to further relate to one kind and answer more specifically to a kind of muffler
With the automobile of above-mentioned muffler.
Background technique
The muffler of automobile be hinder sound transmission and allow air-flow passes through, prevention and treatment the dedicated of air flow power noise set
It is standby.
Referring to Fig. 1, existing mobile muffler includes staving and the noise elimination fiber 12 that is arranged at inner wall of barrel, staving
To be equipped be air inlet for side, the other side is equipped with gas outlet, and is set in staving there are two baffle 11.Muffler air inlet/outlet due to
It being influenced by vehicle gas exhaust piping arrangement, the diameter difference of diameter and ladle body is little, and cause divergence ratio insufficient, low-frequency noise
Erasure effect is unobvious.
In addition, double baffle designs of above-mentioned mobile muffler also affect the body of muffler internal cavity to a certain extent
Product causes noise reduction volume insufficient.
Furthermore above-mentioned noise reduction fiber uses filament, is easy to appear fiber under the comprehensive function of urea and steam
Hardened problem, aging speed is too fast, causes the noise dampening efficiency of high-frequency noises also to occur significantly deteriorating, durability is insufficient.
In conclusion how to provide a kind of muffler, to improve its erasure effect to low-frequency noise, and how to provide
A kind of automobile using above-mentioned muffler is those skilled in the art's urgent problem to be solved.
Utility model content
In view of this, the present invention provides a kind of muffler is used for, the aperture of silencers channel is in first to reduce to increase afterwards
Shape, allow airflow into after silencers channel first to compress and expand afterwards, there is biggish divergence ratio, low-frequency noise can be significantly increased
Noise dampening efficiency.The utility model also provides a kind of automobile, applies above-mentioned muffler, and low frequency noise is small.
To achieve the above object, the utility model provides the following technical solutions:
A kind of muffler, comprising:
Staving, the both ends of the staving are respectively equipped with noise reduction end cap, and a noise reduction end cap is equipped with air inlet, another
A noise reduction end cap is equipped with gas outlet；
Silencing cotton, the silencing cotton are arranged in the staving；
Hush pipe, the hush pipe is in the silencing cotton；The hush pipe include the first direct tube section being sequentially communicated,
The diameter of funnel section and the second direct tube section, second direct tube section is less than first direct tube section；The diameter edge of the funnel section
The direction of first direct tube section to second direct tube section is gradually reduced；
Wherein, the hush pipe is two, and the second direct tube section of two hush pipes is interconnected and forms silencers channel；
First direct tube section of one hush pipe is plugged in the air inlet, and the first direct tube section of another hush pipe is plugged in
The gas outlet.
Preferably, in above-mentioned muffler, the first direct tube section, the funnel section and second direct tube section in the hush pipe
The axis of three is same straight line.
Preferably, in above-mentioned muffler, the axis of second direct tube section of two hush pipes is overlapped.
Preferably, in above-mentioned muffler, the junction of the funnel section and second direct tube section is equipped with chamfering；The leakage
The junction of the section that struggles against and first direct tube section is equipped with chamfering.
Preferably, in above-mentioned muffler, the funnel section is equipped with multiple open-works.
Preferably, in above-mentioned muffler, chamber of the silencing cotton embedded in the staving and two noise reduction end cap compositions
In vivo.
Preferably, in above-mentioned muffler, the silencing cotton is an integral structure, and the surface of the silencing cotton is equipped with uniformly
The round and smooth protrusion of distribution.
A kind of automobile, including muffler, the muffler are muffler described in any one of above-mentioned technical proposal.
The utility model provides a kind of muffler comprising staving, silencing cotton and hush pipe；The both ends of staving are respectively equipped with
Noise reduction end cap, a noise reduction end cap are equipped with air inlet, another noise reduction end cap is equipped with gas outlet；Silencing cotton is arranged in staving
It is interior；Hush pipe is in silencing cotton；Hush pipe includes the first direct tube section being sequentially communicated, funnel section and the second direct tube section, and second
The diameter of direct tube section is less than the first direct tube section；The diameter of funnel section gradually subtracts along the first direct tube section to the direction of the second direct tube section
It is small；Wherein, hush pipe is two, and the second direct tube section of two hush pipes, which is interconnected to assemble, forms silencers channel；One hush pipe
The first direct tube section be plugged in air inlet, the first direct tube section of another hush pipe is plugged in gas outlet.
In muffler provided by the utility model, the second direct tube section of two hush pipes, which is interconnected, to be assembled, and forms noise reduction
Channel, silencers channel include the funnel section of first hush pipe, the second direct tube section of two silencers channels and another noise reduction
The funnel section of pipe, aperture first reduce and increase afterwards, allow airflow into after silencers channel first to compress and expand afterwards, have biggish expansion
Than the noise dampening efficiency to low-frequency noise can be significantly increased.
Meanwhile in above-mentioned muffler, the first direct tube section aperture of two hush pipes is larger, is convenient for and vehicle complete vehicle exhaust pipe
It is combined docking, while exhaust back pressure being avoided excessively to increase, guarantees the economy of internal combustion engine.
In addition, in compared with the prior art double baffle designs muffler, the inside of muffler provided by the utility model
Volume is big, it is ensured that noise reduction volume is sufficiently large.
The utility model provides a kind of automobile comprising muffler, muffler are above-mentioned muffler, have low frequency noise small
Effect.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of muffler in the prior art；
Fig. 2 is the explosive view of muffler provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of muffler provided by the embodiment of the utility model；
Fig. 4 is the cross-sectional view of muffler provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram of the round and smooth protrusion of silencing cotton provided by the embodiment of the utility model；
Wherein, in Fig. 2-Fig. 5:
Hush pipe 101；Noise reduction end cap 102；Staving 103；Silencing cotton 104；Round and smooth protrusion 141.
Specific embodiment
The utility model embodiment discloses a kind of muffler, and the aperture of silencers channel is in first to reduce the shape increased afterwards
Shape is allowed airflow into after silencers channel first to compress and be expanded afterwards, has biggish divergence ratio, can significantly increase disappearing for low-frequency noise
Sound ability.The utility model embodiment also discloses a kind of automobile, applies above-mentioned muffler, and low frequency noise is small.
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.
Fig. 2-Fig. 5 is please referred to, the utility model embodiment provides a kind of muffler comprising staving 103, silencing cotton 104
With hush pipe 101；The both ends of staving 103 are respectively equipped with noise reduction end cap 102, and a noise reduction end cap 102 is equipped with air inlet, another
A noise reduction end cap 102 is equipped with gas outlet；Silencing cotton 104 is arranged in staving 103；Hush pipe 101 is in silencing cotton 104；
Hush pipe 101 includes the first direct tube section, funnel section and the second direct tube section being sequentially communicated, and the diameter of the second direct tube section is less than first
Direct tube section；The diameter of funnel section is gradually reduced along the direction of the first direct tube section to the second direct tube section；Wherein, hush pipe 101 is two
A, the second direct tube section of two hush pipes 101, which is interconnected to assemble, forms silencers channel；First direct tube section of one hush pipe 101
It is plugged in air inlet, the first direct tube section of another hush pipe 101 is plugged in gas outlet.
In muffler provided by the embodiment of the utility model, the second direct tube section of two hush pipes 101, which is interconnected, to be assembled,
Silencers channel is formed, silencers channel includes the second direct tube section of the funnel section of first hush pipe 101, two silencers channels, with
And the funnel section of another hush pipe 101, aperture first reduce and increase afterwards, allow airflow into after silencers channel first to compress and expand afterwards
, there is biggish divergence ratio, the noise dampening efficiency to low-frequency noise can be significantly increased.
Meanwhile in above-mentioned muffler, the first direct tube section aperture of two hush pipes 101 is larger, convenient for arranging with vehicle complete vehicle
Tracheae is combined docking, while exhaust back pressure being avoided excessively to increase, and guarantees the economy of internal combustion engine.
In addition, in compared with the prior art double baffle designs muffler, the inside of muffler provided by the utility model
Volume is big, it is ensured that noise reduction volume is sufficiently large.
Furthermore in above-mentioned muffler, two 101 assembling combinations of hush pipe form silencers channel, can reduce technique manufacture
Difficulty improves production efficiency.
In above-mentioned muffler, the first direct tube section, funnel section and the axis of the second direct tube section three of each hush pipe 101 are
Same straight line.Above-mentioned first direct tube section, funnel section and the second direct tube section three are an integral structure.
Specifically, the axis of the second direct tube section of above-mentioned two hush pipe 101 overlaps, it is ensured that air-flow is via the noise reduction
It is smooth when device, steady.
In each hush pipe 101, the junction of funnel section and the second direct tube section is equipped with chamfering, funnel section and the first direct tube section
Junction be also equipped with chamfering, both prevented stress from concentrating, and reduced a possibility that mechanical failure occurs for hush pipe 101, and can put down
Favorable current reduces gas flow resistance, avoids generating secondary noise.
In above-mentioned muffler, funnel section is equipped with multiple open-works, can enhance the absorbability to noise.
In muffler as above, silencing cotton 104 is in the cavity that staving 103 and two noise reduction end caps 102 form.Silencing cotton
104 are an integral structure, and the surface of silencing cotton 104 is equipped with equally distributed round and smooth protrusion 141.
In muffler provided in this embodiment, uniform round and smooth protrusion 141 is distributed in outside, can effectively improve silencing cotton
104 with the contact area of exhaust gas, to improve absorption of the muffler for medium-high frequency noise.In addition, silencing cotton 104 is staving
103 embedded structures, and be integral design, it can farthest avoid the aging of its noise dampening efficiency from weakening, service life
It is long.
Muffler noise elimination value with higher and wider frequency of noise elimination range, have within the scope of required frequency of noise elimination
Sufficiently large sound deadening capacity meets requirement of the vehicle to noise.
Muffler production cost provided in this embodiment is low, simple process, is convenient for mass production.Furthermore the muffler
Volume it is smaller compared with similar product, can satisfy harsher arrangement requirement.Also, the mechanical strength of above-mentioned muffler
Height, endurance life are long.
The utility model embodiment also provides a kind of automobile comprising muffler, wherein muffler mentions for above-described embodiment
The muffler of confession has the effect of that low frequency noise is small.Certainly, automobile provided in this embodiment also has provided by the above embodiment
Other effects in relation to muffler, details are not described herein.
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 (8)
1. a kind of muffler characterized by comprising
Staving, the both ends of the staving are respectively equipped with noise reduction end cap, and a noise reduction end cap is equipped with air inlet, another institute
Noise reduction end cap is stated equipped with gas outlet；
Silencing cotton, the silencing cotton are arranged in the staving；
Hush pipe, the hush pipe is in the silencing cotton；The hush pipe includes the first direct tube section, the funnel being sequentially communicated
The diameter of section and the second direct tube section, second direct tube section is less than first direct tube section；The diameter of the funnel section is described in
The direction of first direct tube section to second direct tube section is gradually reduced；
Wherein, the hush pipe is two, and the second direct tube section of two hush pipes is interconnected and forms silencers channel；One
First direct tube section of the hush pipe is plugged in the air inlet, and the first direct tube section of another hush pipe is plugged in described
Gas outlet.
2. muffler according to claim 1, which is characterized in that the first direct tube section, the funnel section in the hush pipe
Axis with the second direct tube section three is same straight line.
3. muffler according to claim 1 or 2, which is characterized in that second direct tube section of two hush pipes
Axis be overlapped.
4. muffler according to claim 1, which is characterized in that the junction of the funnel section and second direct tube section
Equipped with chamfering；The junction of the funnel section and first direct tube section is equipped with chamfering.
5. muffler according to claim 1, which is characterized in that the funnel section is equipped with multiple open-works.
6. muffler according to claim 1, which is characterized in that the silencing cotton, which is embedded in described in the staving and two, to disappear
In the cavity of sound end cap composition.
7. muffler according to claim 1, which is characterized in that the silencing cotton is an integral structure, and the noise reduction
The surface of cotton is equipped with equally distributed round and smooth protrusion.
8. a kind of automobile, including muffler, which is characterized in that the muffler is that right is wanted to disappear described in power 1-7 any one
Sound device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739662.4U CN208441906U (en) | 2018-05-17 | 2018-05-17 | Muffler and automobile |
| PCT/CN2018/110782 WO2019218589A1 (en) | 2018-05-17 | 2018-10-18 | Muffler and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739662.4U CN208441906U (en) | 2018-05-17 | 2018-05-17 | Muffler and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208441906U true CN208441906U (en) | 2019-01-29 |
Family
ID=65091674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820739662.4U Active CN208441906U (en) | 2018-05-17 | 2018-05-17 | Muffler and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208441906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425719A (en) * | 2018-05-17 | 2018-08-21 | 潍柴动力股份有限公司 | Muffler and automobile |
-
2018
- 2018-05-17 CN CN201820739662.4U patent/CN208441906U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425719A (en) * | 2018-05-17 | 2018-08-21 | 潍柴动力股份有限公司 | Muffler and automobile |
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| GR01 | Patent grant |