CN108457732A - Silencer for reducing particulate matter emission of automobile exhaust - Google Patents
Silencer for reducing particulate matter emission of automobile exhaust Download PDFInfo
- Publication number
- CN108457732A CN108457732A CN201810456922.1A CN201810456922A CN108457732A CN 108457732 A CN108457732 A CN 108457732A CN 201810456922 A CN201810456922 A CN 201810456922A CN 108457732 A CN108457732 A CN 108457732A
- Authority
- CN
- China
- Prior art keywords
- suppressor case
- air inlet
- inlet pipe
- silencer
- wall
- 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.)
- Pending
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 34
- 239000013618 particulate matter Substances 0.000 title abstract description 6
- 239000000919 ceramic Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910001868 water Inorganic materials 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 10
- 210000000078 claw Anatomy 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000007373 indentation Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000030279 gene silencing Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- 238000002485 combustion reaction Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 210000000476 body water Anatomy 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000019693 Lung disease Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000008275 solid aerosol Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/007—Apparatus used as intake or exhaust silencer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1406—Exhaust gas pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention relates to a muffler for reducing the emission of particulate matters in automobile exhaust, which comprises a muffler shell, wherein the muffler shell is of a hollow cylinder structure, two ends of the muffler shell in the long axis direction are respectively connected with an air inlet pipe and an exhaust pipe, one end of the air inlet pipe is opened, the other end of the air inlet pipe is closed, one end of the closed end of the air inlet pipe extends into the muffler shell, an air outlet hole is formed in the section, positioned on the air inlet pipe and extending into the muffler shell, of the air inlet pipe, and water with the liquid level lower than that of the air inlet pipe and the exhaust pipe is injected into the; the wall-flow honeycomb ceramic filter body is arranged in the silencer shell, and a split structure is adopted at the position of the silencer shell, which is positioned on the wall-flow honeycomb ceramic filter body; and the pressure alarm is arranged at the upper end of the silencer shell. The invention has the advantages that: the high-efficiency tail gas particulate matter trapping and silencing performance of the silencer is suitable for various heat engine tail gas exhaust systems.
Description
Technical field
The present invention relates to a kind of silencer, more particularly to a kind of silencer reducing Vehicle Exhaust Particulate discharge.
Background technology
With the frequent appearance of environmental problems such as haze in recent years, the extensive concern of people is caused, particulate matter PM10,
The indexs such as PM2.5 also enter everybody visual field, and all kinds of respiratory tract Pulmonary Disease patients thus caused also become various big hospital door
The regular guest examined, with being continuously increased for car ownership, motor vehicle exhaust emission is then granular material discharged one of great chief culprit, with
When congestion road watch boundless particulate matter attentively quietly and spread with the wind.Scientific analysis shows to contain hundreds of in vehicle exhaust
Different compounds, pollutant therein have solid aerosol, carbon monoxide, carbon dioxide, hydrocarbon, nitrogen oxidation to close
Object, lead and oxygen sulfur compound etc..The harmful exhaust of one car discharge in 1 year is 3 times bigger than own wt.Britain's air cleaning and
Environmental protection association once delivered research report and claimed, and compared with traffic accident victim, the people that Britain dies of air pollution every year wants
Have more 10 times.
Control research for Vehicle Exhaust Particulate discharge is less, administers the treatment technology that vehicle exhaust is taken at present and arranges
Alms giver will have：It forces, using unleaded gas, solar obligation ternary catalyzing unit etc., motor vehicle exhaust emission to be made to obtain a degree of control
System.But three-way catalytic apparatus is that the pernicious gases such as CO, HC and NOx that vehicle exhaust is discharged are turned by oxidation and reduction
Become the catalysis of harmless carbon dioxide, water and nitrogen.Only 5% particulate matter is adsorbed on three-way catalytic apparatus and silencer
Among separator, for 95% or more particulate matter in exhaust emissions to air, the environment lived to us causes huge destruction,
It is environmentally friendly and it is energy saving be current and future economy social development in facing mankind key subjects.
Invention content
The technical problem to be solved in the present invention is to provide a kind of silencers of reduction Vehicle Exhaust Particulate discharge, to tail gas
Discharged particle carry out high efficiency filter while reduce motor vehicle exhaust emission temperature and noise.
In order to solve the above technical problems, the technical scheme is that：It is a kind of to reduce disappearing for Vehicle Exhaust Particulate discharge
Sound device, innovative point are：Including
One suppressor case, the suppressor case is a hollow cylindrical structure, at the both ends of suppressor case long axis direction
Be connected separately with an air inlet pipe, an exhaust pipe, the one end open of the air inlet pipe, the other end is silent, and air inlet pipe it is silent one
End stretches in suppressor case, is located in air inlet pipe on one section that stretches into suppressor case and is also provided with venthole, described to disappear
The water that liquid level is less than air inlet pipe and exhaust pipe is also injected in sound device shell；
One is built in the wall-flow honeycomb ceramic filter in suppressor case, and the wall-flow honeycomb ceramic filter is in disk
Shape, and it is bonded the madial wall of suppressor case, meanwhile, it is located to use at wall-flow honeycomb ceramic filter in suppressor case and divides
Body formula structure；
One is mounted on the pressure alarm of suppressor case upper end.
Further, the axis of the exhaust pipe is higher than the axis of suppressor case.
Further, the groove for holding filtering body insertion is also provided in the suppressor case.
Further, the split structure is：It is located in suppressor case upper at wall-flow honeycomb ceramic filter
End is provided with a semicircle shape notch, while being also filled with a semicircle shape cover board, one end of the cover board and silencer in the indentation, there
It is hingedly formed between shell, the other end has an elastic card claw, while having on the lateral wall of suppressor case and elastic card
The matched turnup structure of pawl.
Further, it is additionally provided with sealing ring between the cover board and silencer.
The advantage of the invention is that：In the present invention, it is less than air inlet pipe and exhaust pipe by being injected in silencer inner cavity
Water, when wall-flow honeycomb ceramic filter is normally carried out trap filter, tail gas is partly filtered through from the filtering body water surface, and
When after being blocked to hot Combustion engine tail gas particle collection, inlet chamber air pressure raising causes pressure to warn for part on the filtering body water surface
Report device alarm, the tail gas pressure raised simultaneously that can squeeze flow in silencer chamber toward air exit and pass through the underwater portion of filtering body
Point, influence of the silencer inlet chamber air pressure raising to automobile dynamic quality is released, the flow at silencer chamber bottom not only can be in mistake
Filter body releases influence of the silencer inlet chamber air pressure raising to automobile dynamic quality after blocking, also simultaneously to the hot combustion engine tail of high temperature
Gas plays cooling effect.
Using wall-flow honeycomb ceramic filter, there is up to 75% or more particle collection rate, is filtered in hot Combustion engine tail gas
In have excellent performance；Using the cooperation of the porous wall of venthole and wall-flow honeycomb ceramic filter in air inlet pipe,
Resonance Structure all is formed with silencer inner cavity, achievees the effect that dual noise elimination.
By being equipped with pressure alarm indicator on silencer, when wall-flow honeycomb ceramic filter is blocked pressure rising
Play the purpose for reminding the replacement to filtering body.
By the axis higher than suppressor case of the axis designs of exhaust pipe, then exhaust outlet height is improved, tail is made
H in gas2O retain in fluid form and formed it is a certain amount of, using liquid gas conversion can effectively reduce delivery temperature.
Design for split structure, using the cooperation between cover board and suppressor case so that cover board can be opened
To realize that the independence to wall-flow honeycomb ceramic filter is replaced, without replacing entire silencer, cost is reduced；And it is right
Using the cooperation realization connection of elastic card claw and turnup structure between cover board and suppressor case, without other fixed companies
Fitting so that connection enhanced convenience.
By the way that sealing ring is arranged between cover board and silencer, then avoided in order to ensure sealing performance between the two
Water or exhaust gas are flowed directly out or are discharged from gap between the two.
The efficient exhaust particulate object trapping of the silencer of the present invention and acoustic attenuation performance are suitable for all kinds of hot Combustion engine tail gas rows
Place system.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the schematic diagram of the silencer for reducing Vehicle Exhaust Particulate discharge of the present invention.
Fig. 2 is the schematic diagram of wall-flow honeycomb ceramic filter in the present invention.
Fig. 3 is the schematic diagram of cover plate of the present invention.
Specific implementation mode
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
A kind of silencer reducing Vehicle Exhaust Particulate discharge as shown in FIG. 1 to FIG. 3, including
One suppressor case 1, which is a hollow cylindrical structure, at the both ends of 1 long axis direction of suppressor case
It is connected separately with an air inlet pipe 2, an exhaust pipe 3, the other end of the one end open of air inlet pipe 2, air inlet pipe 2 is silent, and air inlet pipe 2
Silent one end stretches in suppressor case 1, is located in air inlet pipe 2 on one section that stretches into suppressor case 1 and is also provided with out
Stomata 4 is also injected with the water that liquid level is less than air inlet pipe 2 in suppressor case 1.
The both ends of exhaust pipe 3 are open, and exhaust pipe is mounted on the side of suppressor case 1, and the axis of exhaust pipe 3 is higher than
The axis of suppressor case 1.By the axis higher than suppressor case of the axis designs of exhaust pipe 3, then improves exhaust pipe 3 and go out
Open height makes H in tail gas2O retain in fluid form and formed it is a certain amount of, using liquid gas conversion can effectively reduce exhaust temperature
Degree.
One is built in the wall-flow honeycomb ceramic filter 5 in suppressor case 1, and wall-flow honeycomb ceramic filter 5 is in
It is discoid, and it is bonded the madial wall of suppressor case 1, meanwhile, it is located at wall-flow honeycomb ceramic filter 5 in suppressor case 1
Place uses split structure.
Split structure is：It is provided with a semicircle in the upper end that suppressor case 1 is located at wall-flow honeycomb ceramic filter 5
Shape notch, a while semicircle shape cover board 6 is also filled in the indentation, there, it is hinged between one end and suppressor case 1 of cover board 6 and
At the other end of cover board 6 has an elastic card claw, while having on the lateral wall of suppressor case and being matched with elastic card claw
Turnup structure.Design for split structure, using the cooperation between cover board 6 and suppressor case 1 so that cover board 6 can
The independence of wall-flow honeycomb ceramic filter 5 is replaced with opening to realize, without replacing entire silencer, reduce at
This；And for using the cooperation of elastic card claw and turnup structure to realize connection between cover board 6 and suppressor case 1, it is not necessarily to it
His fixedly connected part so that connection enhanced convenience has been also convenient for opening and has closed cover board 6.
Sealing ring 7 is additionally provided between cover board 6 and suppressor case 1.By between cover board 6 and suppressor case 1
Sealing ring 7 is set, then is to avoid water or exhaust gas direct from gap between the two in order to ensure sealing performance between the two
Outflow or discharge.
It is also provided in suppressor case 1 and holds the groove that wall-flow honeycomb ceramic filter 5 is embedded in.Pass through setting for the groove
Meter, on the one hand, Fast Installation can be carried out to wall-flow honeycomb ceramic filter 5, improve efficiency, it on the other hand also can be to wall-flow type
Honeycomb ceramic filter body 5 is limited, and avoids it that play, displacement etc. occurs in suppressor case 1 and influences filter effect.
One is mounted on the pressure alarm 8 of 1 upper end of suppressor case.By installing pressure alarm on suppressor case 1
Device 8 is blocked in wall-flow honeycomb ceramic filter 5 and plays the purpose for reminding the replacement to filtering body when pressure rises.
When handling tail gas, tail gas can enter suppressor case 1 from air inlet pipe 2, and because in suppressor case 1
The presence of water, tail gas can pass through from the Partial filtration on the liquid level that wall-flow honeycomb ceramic filter 5 is located at water, and work as wall stream
After being blocked to hot Combustion engine tail gas particle collection, inlet chamber air pressure increases for part on 5 water surface of formula honeycomb ceramic filter body
Pressure alarm indicator 8 is caused to alarm, the tail gas pressure raised simultaneously can go out the interior intracavitary flow of suppressor case 1 toward exhaust pipe 3
Mouth squeezes, and such tail gas can pass through from the underwater portion of wall-flow honeycomb ceramic filter 5, releases silencer inlet chamber air pressure liter
Influence of the height to automobile dynamic quality, and the flow at silencer chamber bottom not only can filtering body blocking after release silencer into
Air cavity air pressure increases the influence to automobile dynamic quality, also plays cooling effect to the hot Combustion engine tail gas of high temperature simultaneously, and
Due to the presence of this part water, when jolting when the vehicle is running, water can teetertotter, to wall-flow honeycomb
Ceramic filtering body 5 is cleaned, and the granule foreign of wall-flow honeycomb ceramic filter 5 is blocked with removal.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of silencer reducing Vehicle Exhaust Particulate discharge, it is characterised in that：Including
One suppressor case, the suppressor case is a hollow cylindrical structure, at the both ends of suppressor case long axis direction
Be connected separately with an air inlet pipe, an exhaust pipe, the one end open of the air inlet pipe, the other end is silent, and air inlet pipe it is silent one
End stretches in suppressor case, is located in air inlet pipe on one section that stretches into suppressor case and is also provided with venthole, described to disappear
The water that liquid level is less than air inlet pipe and exhaust pipe is also injected in sound device shell；
One is built in the wall-flow honeycomb ceramic filter in suppressor case, and the wall-flow honeycomb ceramic filter is in disk
Shape, and it is bonded the madial wall of suppressor case, meanwhile, it is located to use at wall-flow honeycomb ceramic filter in suppressor case and divides
Body formula structure；
One is mounted on the pressure alarm of suppressor case upper end.
2. the silencer according to claim 1 for reducing Vehicle Exhaust Particulate discharge, it is characterised in that：The exhaust pipe
Axis be higher than suppressor case axis.
3. the silencer according to claim 1 for reducing Vehicle Exhaust Particulate discharge, it is characterised in that：The silencer
The groove for holding filtering body insertion is also provided in shell.
4. the silencer according to claim 1 for reducing Vehicle Exhaust Particulate discharge, it is characterised in that：It is described split type
Structure is：It is located at the upper end at wall-flow honeycomb ceramic filter in suppressor case and is provided with a semicircle shape notch, while at this
Indentation, there is also filled with a semicircle shape cover board, is hingedly formed between one end and suppressor case of the cover board, the other end has
One elastic card claw, while having and the matched turnup structure of elastic card claw on the lateral wall of suppressor case.
5. the silencer according to claim 4 for reducing Vehicle Exhaust Particulate discharge, it is characterised in that：The cover board with
Sealing ring is additionally provided between silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456922.1A CN108457732A (en) | 2018-05-14 | 2018-05-14 | Silencer for reducing particulate matter emission of automobile exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456922.1A CN108457732A (en) | 2018-05-14 | 2018-05-14 | Silencer for reducing particulate matter emission of automobile exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457732A true CN108457732A (en) | 2018-08-28 |
Family
ID=63214780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810456922.1A Pending CN108457732A (en) | 2018-05-14 | 2018-05-14 | Silencer for reducing particulate matter emission of automobile exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457732A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439576A (en) * | 2022-01-05 | 2022-05-06 | 东风柳州汽车有限公司 | Noise elimination structure and car |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453460A (en) * | 2002-04-22 | 2003-11-05 | 姚生浩 | Exhaust purifying system and exhaust purifying and silencing method for diesel engine |
| CN102606257A (en) * | 2010-11-25 | 2012-07-25 | 现代自动车株式会社 | Exhaust gas filtering apparatus |
| CN105673143A (en) * | 2016-01-27 | 2016-06-15 | 张朋 | Automobile noise reducing, dedusting and cooling device |
| CN205382977U (en) * | 2016-03-16 | 2016-07-13 | 杨艳云 | A discharging equipment for treating motor vehicle exhaust gases |
| CN208236488U (en) * | 2018-05-14 | 2018-12-14 | 南通理工学院 | Silencer for reducing particulate matter emission of automobile exhaust |
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| CN208236488U (en) * | 2018-05-14 | 2018-12-14 | 南通理工学院 | Silencer for reducing particulate matter emission of automobile exhaust |
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