CN104110290A - Three-way catalytic silencer - Google Patents
Three-way catalytic silencer Download PDFInfo
- Publication number
- CN104110290A CN104110290A CN201410311623.0A CN201410311623A CN104110290A CN 104110290 A CN104110290 A CN 104110290A CN 201410311623 A CN201410311623 A CN 201410311623A CN 104110290 A CN104110290 A CN 104110290A
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- China
- Prior art keywords
- chamber
- pipeline
- baffler
- outlet pipe
- cavity
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- 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.)
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Abstract
The invention discloses a three-way catalytic silencer which comprises a silencer body arranged at an air outlet pipe of a three-way catalytic converter. The silencer body is a cavity with the two ends provided with an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is connected with the air outlet pipe of the three-way catalytic converter, and the cavity is divided into a sealed cavity body A, a sealed cavity body B and a sealed cavity body C in sequence from the air inlet pipe, the cavity body A is communicated with the air inlet pipe, the cavity body A is connected with the cavity body C through a pipeline, the cavity body C is connected with the cavity body B through a pipeline, the cavity body B is provided with the pipeline led to the air outlet pipe, and the side wall of the middle of the pipeline is of a porous structure. The silencing effect is enhanced, and the service life is prolonged.
Description
Technical field
The present invention relates to automobile environment-protection product technical field, particularly a kind of three-element catalytic baffler.
Background technique
The vent systems of state's IV gas engine passenger vehicle is comprised of exhaust bronchus, exhaust expansion bellows, three-way catalytic converter, baffler and the tailpipe of connecting engine relief opening at present.In three-way catalytic converter, rise in the catalyst carrier of catalysis with the aperture that fills catalyzer, tail gas reacts during by aperture under the effect of catalyzer, thereby reduces the CH in gas engine tail gas
4, the harmful gas content such as CO, guarantee that the tail gas being discharged in atmosphere reaches state's IV standard.
The sudden change of baffler utilization by pipeline section or bypass resonant cavity etc. cause that in propagation of sound process the change of impedance produces the reflection of acoustic energy, interference, or utilize silencing cotton to absorb the noise in exhaust, thereby reduce exhaust sound to external radiation, reach noise reduction object.
Baffler of the prior art mostly is the baffler in single chamber, and erasure effect is bad, is subject to the impact of high-temperature tail gas after three-element catalytic simultaneously, and working life is low.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of three-element catalytic baffler, increases resonant cavity and pipeline, thereby optimizes the effect of noise reduction, to solve the above-mentioned multinomial defect causing in prior art.
For achieving the above object, the invention provides following technological scheme: a kind of three-element catalytic baffler, comprise the baffler body that is arranged on triple mode catalytic converter steam outlet pipe place, described baffler body is the cavity that two ends are provided with suction tude and steam outlet pipe, suction tude is connected with triple mode catalytic converter steam outlet pipe, inside cavity is divided into successively the A chamber of sealing from suction tude, B chamber and C chamber, A chamber and suction tude are come round, A chamber is connected by pipeline with C chamber, C chamber is connected by pipeline with B chamber, B chamber is provided with the pipeline that leads to steam outlet pipe, the middle part sidewall of pipeline is porous structure.
Preferably, in described A chamber, B chamber and C chamber, perpendicular to pipeline, be provided with polylith insulation board.
Preferably, the two ends of described pipeline are all provided with filtrating equipment.
Preferably, described pipeline adopts the stainless steel material of corrosion-and high-temp-resistant.
Preferably, described cavity adopts the stainless steel material of corrosion-and high-temp-resistant.
Adopt the beneficial effect of above technological scheme to be: the three-element catalytic baffler of structure of the present invention, resonant cavity and pipeline have been increased, when propagating, there is reflection and interfere in sound wave, reduce acoustic energy and reach noise reduction object, the middle part of pipeline is porous structure, when sound wave enters pipeline, part acoustic energy rubs and changes into thermal energy consumption and dissipate in the hole of porous, make to weaken by the sound wave of baffler, in cavity, be also provided with insulation board, absorb acoustic energy and reach noise reduction object, the two ends of pipeline are provided with filtrating equipment, tail gas is done to further purification, cavity and pipeline all adopt the stainless steel material of corrosion-and high-temp-resistant, can stand 500 ℃ ~ 700 ℃ high-temperature exhaust airs, guarantee that baffler does not damage, do not lose erasure effect, promote erasure effect, increase the service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of three-element catalytic baffler of the present invention;
Fig. 2 is the structural representation of pipeline shown in Fig. 1.
Wherein, 1--suction tude, 2--steam outlet pipe, 3--A chamber, 4--B chamber, 5--C chamber, 6--pipeline, 7--insulation board, 8--through hole, 9--filtrating equipment.
Embodiment
Below in conjunction with accompanying drawing, describe a kind of preferred implementation of a kind of three-element catalytic baffler of the present invention in detail.
Fig. 1 has shown the embodiment of a kind of three-element catalytic baffler of the present invention: a kind of three-element catalytic baffler, comprise the baffler body that is arranged on triple mode catalytic converter steam outlet pipe 2 places, described baffler body is the cavity that two ends are provided with suction tude 1 and steam outlet pipe 2, suction tude 1 is connected with triple mode catalytic converter steam outlet pipe 2, inside cavity is divided into successively the A chamber 3 of sealing from suction tude 1, B chamber 4 and C chamber 5, come round with suction tude 1 in A chamber 3, A chamber 3 is connected by pipeline 6 with C chamber 5, C chamber 5 is connected by pipeline 6 with B chamber 4, B chamber 4 is provided with the pipeline 6 that leads to steam outlet pipe 2, A chamber 3, in B chamber 4 and C chamber 5, perpendicular to pipeline 6, be provided with polylith insulation board 7, resonant cavity and pipeline 6 have been increased, when propagating, there is reflection and interfere in sound wave, reduce acoustic energy and reach noise reduction object, the middle part of pipeline 6 is porous structure, in cavity, be also provided with insulation board 7, absorb acoustic energy and reach noise reduction object.
As shown in Figure 2, the middle part sidewall of pipeline 6 is porous structure, the two ends of pipeline 6 are all provided with filtrating equipment 9, when sound wave enters pipeline 6, part acoustic energy rubs and changes into thermal energy consumption and dissipate in the hole of porous, make to weaken by the sound wave of baffler, the two ends of pipeline 6 are provided with filtrating equipment 9, and tail gas is done to further purification.
Pipeline 6 adopts the stainless steel material of corrosion-and high-temp-resistant, and cavity adopts the stainless steel material of corrosion-and high-temp-resistant, can stand 500 ℃ ~ 700 ℃ high-temperature exhaust airs, guarantees that baffler does not damage, do not lose erasure effect, promotes erasure effect, increases the service life.
Vehicle exhaust enters A chamber 3 through suction tude 1, by pipeline 6, enters C chamber 5, then enters B chamber 4 by pipeline 6, then passes through pipeline 6 through steam outlet pipe 2, enters tailpipe, in process, through a plurality of resonant cavities, pipeline 6 and insulation board 7, has greatly promoted erasure effect.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (5)
1. a three-element catalytic baffler, comprise the baffler body that is arranged on triple mode catalytic converter steam outlet pipe place, it is characterized in that: described baffler body is the cavity that two ends are provided with suction tude and steam outlet pipe, suction tude is connected with triple mode catalytic converter steam outlet pipe, inside cavity is divided into successively A chamber, B chamber and the C chamber of sealing from suction tude, A chamber and suction tude are come round, A chamber is connected by pipeline with C chamber, C chamber is connected by pipeline with B chamber, B chamber is provided with the pipeline that leads to steam outlet pipe, and the middle part sidewall of pipeline is porous structure.
2. three-element catalytic baffler according to claim 1, is characterized in that: in described A chamber, B chamber and C chamber, perpendicular to pipeline, be provided with polylith insulation board.
3. three-element catalytic baffler according to claim 1, is characterized in that: the two ends of described pipeline are all provided with filtrating equipment.
4. three-element catalytic baffler according to claim 1 and 2, is characterized in that: described pipeline adopts the stainless steel material of corrosion-and high-temp-resistant.
5. according to claim 1, it is characterized in that: described cavity adopts the stainless steel material of corrosion-and high-temp-resistant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311623.0A CN104110290A (en) | 2014-08-20 | 2014-08-20 | Three-way catalytic silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311623.0A CN104110290A (en) | 2014-08-20 | 2014-08-20 | Three-way catalytic silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104110290A true CN104110290A (en) | 2014-10-22 |
Family
ID=51707257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410311623.0A Pending CN104110290A (en) | 2014-08-20 | 2014-08-20 | Three-way catalytic silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104110290A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007132271A (en) * | 2005-11-10 | 2007-05-31 | Sakura Kogyo Kk | Silencer and inner piece used for same |
| CN202745964U (en) * | 2012-06-28 | 2013-02-20 | 马恒达悦达（盐城）拖拉机有限公司 | Silencer |
| CN203050850U (en) * | 2013-01-31 | 2013-07-10 | 淄博职业学院 | Automobile emission silencer |
| US20140041959A1 (en) * | 2012-08-10 | 2014-02-13 | Hyundai Motor Company | Muffler for vehicle |
| CN203769880U (en) * | 2014-04-09 | 2014-08-13 | 成都沐杰科技有限公司 | Three-way catalytic silencer |
-
2014
- 2014-08-20 CN CN201410311623.0A patent/CN104110290A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007132271A (en) * | 2005-11-10 | 2007-05-31 | Sakura Kogyo Kk | Silencer and inner piece used for same |
| CN202745964U (en) * | 2012-06-28 | 2013-02-20 | 马恒达悦达（盐城）拖拉机有限公司 | Silencer |
| US20140041959A1 (en) * | 2012-08-10 | 2014-02-13 | Hyundai Motor Company | Muffler for vehicle |
| CN203050850U (en) * | 2013-01-31 | 2013-07-10 | 淄博职业学院 | Automobile emission silencer |
| CN203769880U (en) * | 2014-04-09 | 2014-08-13 | 成都沐杰科技有限公司 | Three-way catalytic silencer |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |