CN204126706U - A kind of silencing apparatus - Google Patents
A kind of silencing apparatus Download PDFInfo
- Publication number
- CN204126706U CN204126706U CN201420581169.6U CN201420581169U CN204126706U CN 204126706 U CN204126706 U CN 204126706U CN 201420581169 U CN201420581169 U CN 201420581169U CN 204126706 U CN204126706 U CN 204126706U
- Authority
- CN
- China
- Prior art keywords
- dilatation chamber
- inclusion
- suction tude
- dividing plate
- muffler
- 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
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to technical field of automobile, particularly relates to a kind of silencing apparatus.It comprises inclusion, the suction tude be arranged in described inclusion, outlet pipe, muffler, the first dividing plate and second partition, it is characterized in that: described inclusion is separated into the first dilatation chamber, resonant cavity and the second dilatation chamber by described first dividing plate and second partition, described suction tude, outlet pipe and muffler and described dividing plate perpendicular be arranged in described inclusion; One end of described suction tude communicates with described inclusion outside, and the other end stretches into the first dilatation chamber, is provided with perforation cone in end, and the tube wall of pipeline section being positioned at described resonant cavity is evenly equipped with air hole; Described second dilatation chamber is stretched in described muffler one end, and the other end stretches into described first dilatation chamber; Described second dilatation chamber is stretched in described outlet pipe one end, and the other end is through described inclusion and ft connection.Its beneficial effect is: can realize that vehicle exhaust air-flow is anti-phase to liquidate, and effectively reduces the formation of automobile exhaust noise and quadratic noise.
Description
Technical field
The utility model relates to technical field of automobile, particularly relates to a kind of silencing apparatus.
Background technique
In the prior art, usually impedance composite muffler is adopted.The silencing apparatus of this structure and principle remains in following defect:
One is that composite muffler sound-absorbing material reduces the corrosion resistance of inclusion to tail gas dust and the poor durability of water, simultaneously sound-absorbing material after absorbing water; Sound-absorbing material is in hot environment in addition, under the impact of high velocity air, is discharged in air after fragmentation with vehicle exhaust, serious harm environment, unfavorable health.
Two is the reasons due to structural design in silencing apparatus inclusion, cause silencing apparatus while noise elimination, create quadratic noise again, this mainly causes because automobile exhaust airspeed is too high, and reducing automobile exhaust airspeed is one of measure solving quadratic noise in silencing apparatus.
Three is in the prior art, broken end is caused to stretch into silencing apparatus inclusion below in the ternary purifying device inner catalyst fragmentation of engine exhaust outlet, the aperture of blocking muffler tail pipe, after the engine started, inclusion is generated heat redden, have influence on the fuel tank safety on next-door neighbour silencing apparatus inclusion side, the meeting that situation is serious makes silencing apparatus inclusion pop, and is a serious threat to the safety of automobile body and driver and conductor.
Model utility content
The utility model is for above-mentioned the deficiencies in the prior art, and providing one to have, air-flow is anti-phase liquidates, and effectively can reduce the silencing apparatus that automobile exhaust noise and quadratic noise are formed.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of silencing apparatus, comprises inclusion, the suction tude be arranged in described inclusion, outlet pipe, muffler, the first dividing plate and second partition, it is characterized in that:
Described first dividing plate and second partition be arranged in parallel, described inclusion are separated into the chamber of three relative closures, i.e. the first dilatation chamber, resonant cavity and the second dilatation chamber, and described suction tude, outlet pipe and muffler are arranged in parallel in described inclusion;
One end of described suction tude communicates with described inclusion outside, the other end stretches into the first dilatation chamber through described second partition and the first dividing plate, the other end of described suction tude is provided with perforation cone, and described suction tude is evenly equipped with air hole on the tube wall of pipeline section being positioned at described resonant cavity;
Described muffler is through described first dividing plate and second partition, and described second dilatation chamber is stretched in one end, and the other end stretches into described first dilatation chamber;
Described outlet pipe is through described first dividing plate and second partition, and described second dilatation chamber is stretched in one end, and the other end is through described inclusion and ft connection.
The beneficial effects of the utility model are: the utility model is according to the anti-phase acoustic attenuation performance of the diesel engine exhaust muffler that liquidates and the achievement in research of aerodynamic quality, in conjunction with the feature that the little installation in bottom of car space is compact, utilize in silencing apparatus inclusion and suction tude, outlet pipe and muffler are set, make air-flow reciprocal back and forth, and utilize perforation cone, realize that vehicle exhaust air-flow is anti-phase to liquidate, effectively can reduce the formation of automobile exhaust noise and quadratic noise; Owing to it also avoid on the impact of the corrosion resistance of inclusion with because these material agings are on the impact of environment without sound-absorbing material; Be adopt cone water conservancy diversion, the anti-phase structure reduction automobile exhaust airspeed that liquidates again, thus effectively reduce pneumatic noise, and avoid the formation of quadratic noise.
On the basis of technique scheme, the utility model can also do following improvement.
Further, the uniform aperture in described bodkin surface, the vapor permeation area summation of described aperture and the sectional area of described suction tude suitable.
The beneficial effect of above-mentioned further scheme is adopted to be, this uniform aperture in bodkin surface, there is the effect of water conservancy diversion motor exhaust, effectively can reduce the quadratic noise that inclusion internal turbulence causes, air-flow forms air-flow and liquidates in cone, reduce motor exhaust airspeed, noise is eliminated the noise through the keyhole formation diffraction of cone, noise reflexes in resonant cavity through outer surface of cone, form resonant silencing, form anti-phase noise elimination through suction tude inwall bounce back arrival gas direction.
The described suitable vapor permeation area summation referring to described aperture can not be too little and too large, substantially will be approximately equal to the sectional area of described suction tude, vapour lock can be avoided like this to be formed.
Further, the extrusion of described suction tude in described first dilatation chamber equals 1/4 of described first dilatation chamber total length.
The beneficial effect of above-mentioned further scheme is adopted to be that this set can ensure that the outlet end gas of suction tude has enough diffusion space in described first dilatation chamber, buffering motor exhaust pulse pneumatic, and can the noise elimination of expansion low-frequency band.
Further, the extrusion of described muffler in described first dilatation chamber and the second dilatation chamber is respectively 1/2 of the total length in described first dilatation chamber and the second dilatation chamber.
The beneficial effect of above-mentioned further scheme is adopted to be that this set can make the circulation of air-flow in inclusion and the mutual undertaking between suction tude, outlet pipe and muffler is more smooth and easy and the noise elimination of expansion low-frequency band.
Further, described perforation cone is stainless steel, and its thickness is 1 ~ 1.2 millimeter.
The beneficial effect of above-mentioned further scheme is adopted to be adopt stainless steel, lighter and more corrosion-resistant while guarantee uses rigidity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model middle punch cone;
Fig. 3 is the making structural representation of the utility model middle punch cone.
In Fig. 1 to Fig. 3,1, inclusion; 2, suction tude; 3, outlet pipe; 4, muffler; 5, perforation cone; 6, the first dividing plate; 7, second partition; 8, the first dilatation chamber; 9, resonant cavity; 10, the second dilatation chamber; 11, suction tude first pipeline section; 12, suction tude second pipeline section; 13, suction tude the 3rd pipeline section; 14, aperture.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of silencing apparatus, comprises inclusion 1, the suction tude 2 be arranged in described inclusion 1, outlet pipe 3, muffler 4, cone 5, first dividing plate 6 and second partition 7, it is characterized in that:
Described first dividing plate 6 and second partition 7 be arranged in parallel, described inclusion 1 is separated into the cavity volume of three relative closures, i.e. the first dilatation chamber 8, resonant cavity 9 and the second dilatation chamber 10, described suction tude 2, outlet pipe 3 and muffler 4 be parallel to each other and with first, second dividing plate described perpendicular be arranged in described inclusion 1; Here relative closure refers to and passes through except stream guidance except crossing pipeline between each cavity volume, and each self-forming enclosed space is spatially isolated each other.
One end of described suction tude 2 communicates with described inclusion 1 outside, the other end stretches into the first dilatation chamber 8 through described second partition 7 and the first dividing plate 6, the other end of described suction tude 2 is provided with perforation cone 5, and namely described suction tude 2 is separated into three pipeline sections by described second partition 7 and the first dividing plate 6: i.e. suction tude first pipeline section 11; Suction tude second pipeline section 12, suction tude the 3rd pipeline section 13.Described suction tude 2 is evenly equipped with air hole on the tube wall being positioned at the pipeline section of described resonant cavity 9 (i.e. suction tude second pipeline section); Described muffler 4 is through described first dividing plate 6 and second partition 7, and described second dilatation chamber 10 is stretched in one end, and the other end stretches into described first dilatation chamber 8;
Described outlet pipe 3 is through described first dividing plate 6 and second partition 7, and described second dilatation chamber 10 is stretched in one end, and the other end is through described inclusion 1 and ft connection.
The surperficial uniform aperture 14 of described perforation cone 5, the vapor permeation area summation of described aperture 14 and the sectional area of described suction tude 2 suitable.
The extrusion of described suction tude 2 in described first dilatation chamber 8 equals 1/4 of described first dilatation chamber 8 total length.
The extrusion of described muffler 4 in described first dilatation chamber 8 and the second dilatation chamber 10 is respectively 1/2 of the total length in described first dilatation chamber 8 and the second dilatation chamber 10.
Described perforation cone 5 is stainless steel, and its thickness is 1 ~ 1.2 millimeter.
As shown in Figures 2 and 3, when concrete making perforation cone 5, circular plate material is first stamped out by after corrosion resistant plate blanking, then circular plate is cut into 1/4 covering of the fan, each covering of the fan is put into punching on Special punching die, a punching press completes, then it is shaping the covering of the fan of hole punch to be put into special cone shaping die, after shaping, namely the spot welding of cone edge is completed cone course of working.
In silencing apparatus core wire process, perforation cone 5 is welded on the outlet end of suction tude 2.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a silencing apparatus, comprises inclusion, the suction tude be arranged in described inclusion, outlet pipe, muffler, the first dividing plate and second partition, it is characterized in that:
Described first dividing plate and second partition be arranged in parallel, described inclusion are separated into the chamber of three relative closures, i.e. the first dilatation chamber, resonant cavity and the second dilatation chamber, and described suction tude, outlet pipe and muffler are arranged in parallel in described inclusion;
One end of described suction tude communicates with described inclusion outside, the other end stretches into the first dilatation chamber through described second partition and the first dividing plate, the other end of described suction tude is provided with perforation cone, and described suction tude is evenly equipped with air hole on the tube wall of pipeline section being positioned at described resonant cavity;
Described muffler is through described first dividing plate and second partition, and described second dilatation chamber is stretched in one end, and the other end stretches into described first dilatation chamber;
Described outlet pipe is through described first dividing plate and second partition, and described second dilatation chamber is stretched in one end, and the other end is through described inclusion and ft connection.
2. silencing apparatus according to claim 1, is characterized in that, the uniform aperture in described bodkin surface, the vapor permeation area summation of described aperture and the sectional area of described suction tude suitable.
3. silencing apparatus according to claim 1 and 2, is characterized in that, the extrusion of described suction tude in described first dilatation chamber equals 1/4 of described first dilatation chamber total length.
4. silencing apparatus according to claim 3, is characterized in that, the extrusion of described muffler in described first dilatation chamber and the second dilatation chamber is respectively 1/2 of the total length in described first dilatation chamber and the second dilatation chamber.
5. silencing apparatus according to claim 1, is characterized in that, described perforation cone is stainless steel, and its thickness is 1 ~ 1.2 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420581169.6U CN204126706U (en) | 2014-10-09 | 2014-10-09 | A kind of silencing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420581169.6U CN204126706U (en) | 2014-10-09 | 2014-10-09 | A kind of silencing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204126706U true CN204126706U (en) | 2015-01-28 |
Family
ID=52383071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420581169.6U Expired - Fee Related CN204126706U (en) | 2014-10-09 | 2014-10-09 | A kind of silencing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204126706U (en) |
-
2014
- 2014-10-09 CN CN201420581169.6U patent/CN204126706U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20151009 |
|
| EXPY | Termination of patent right or utility model |