CN107345494A - A kind of motor vehicle exhaust emission after-treatment system - Google Patents
A kind of motor vehicle exhaust emission after-treatment system Download PDFInfo
- Publication number
- CN107345494A CN107345494A CN201610295086.4A CN201610295086A CN107345494A CN 107345494 A CN107345494 A CN 107345494A CN 201610295086 A CN201610295086 A CN 201610295086A CN 107345494 A CN107345494 A CN 107345494A
- Authority
- CN
- China
- Prior art keywords
- catalyst converter
- air
- motor vehicle
- treatment system
- pumped
- 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
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Classifications
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- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/32—Arrangements for supply of additional air using air pump
-
- 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
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/10—Carbon or carbon oxides
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/12—Hydrocarbons
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a kind of motor vehicle exhaust emission after-treatment system, it includes the first catalyst converter and air secondary is pumped into device, wherein described air secondary, which is pumped into device, includes air pump, first vector is provided with first catalyst converter, after the air pump is connected to the first vector, or be connected to after the first catalyst converter, for add fresh air before other carriers or other catalyst converters are entered by the gas after the first vector.In such manner, it is possible to which enable not processed pernicious gas to obtain handles required oxygen again, so as to be converted into normal discharge gas, the exhaust emissions of vehicle is set to meet national standard.
Description
Technical field
The present invention relates to motor vehicle exhaust emission field, more particularly, to a kind of after-treatment system for motor vehicle exhaust emission.
Background technology
As automobile possesses the continuous increase of quantity, influence of the automobile to environment is increasingly valued by people.It is mainly the tail gas of motor vehicle emission wherein most by public concern, the pollution for environment, it is also more and more tighter to the regulation of motor vehicle exhaust emission that this also allows for countries in the world.
For example, for light-duty spark ignition passenger car, Europe will enter the execution stage of Europe 6c Abgasgesetzs in 2017.Its Central European 6c Abgasgesetz is than the existing Abgasgesetz of Europe 5, and mainly plus tight OBD emission limit, this failure diagnosis for allowing for catalyst converter become more difficult.And typically in vehicle application, typically using the means of monitoring catalyst converter oxygen storage capacity, the degradation of catalyst converter is diagnosed indirectly.
At present, in order to meet stricter OBD Abgasgesetzs, engine aftertreatment system typically uses two-stage catalyst converter framework, i.e., on the basis of original catalyst design, increases a catalyst converter（Close coupled type or chassis type）, so that prime catalyst converter declines in oxygen storage capacity, it is deteriorated to when meeting bright light condition, the emission limit that can still rely on rear class catalyst converter make vehicle discharge meet OBD.
Domestic then be correspondingly to have issued the draining technology draft standard of automobile state six, the mainly discharge to CO has been carried out significantly plus tight, and wherein two stages of a, b are respectively 0.5g/km, 0.3g/km, and current vehicle discharge is difficult to meet standard limited value requirement.
Further, wherein in the development strategy of the standard of state six, the main object for demarcating control is to suppress NOx.But suppress that CO can then be significantly increased while NOx, and caused CO can only be handled after engine discharge by after-treatment system, so, can cause that emission is exceeded again.Therefore, the exploitation of state six needs the after-treatment system for tackling ultralow CO discharges.
The content of the invention
It is an object of the invention to provide a kind of new motor vehicle exhaust emission after-treatment system, and it can effectively handle the pernicious gas in tail gas so that place emission from vehicles meets Standard.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of motor vehicle exhaust emission after-treatment system, it includes the first catalyst converter, device is pumped into air secondary, the multiple carriers being provided with wherein described first catalyst converter including first vector, the air secondary, which is pumped into device, includes air pump, the air pump is arranged to be connected to after the first vector, for for by the gas after the first vector enter other carriers before add fresh air.
Further, in an embodiment of the invention, the air secondary, which is pumped into device, includes air filter, and it is connected with the air pump.
Further, in an embodiment of the invention, the air secondary, which is pumped into device, includes air valve, and it is connected with the air filter and the air pump.
Further, in an embodiment of the invention, the multiple carrier in first catalyst converter includes Second support, the first vector connects with the Second support, the air pump is connected between the first vector and the Second support, and fresh air is added to enter the gas in the Second support.
Further, in an embodiment of the invention, multiple carriers in first catalyst converter are configured to cascaded structure, between two carriers of the medium position that the air valve that the air secondary is pumped into device is arranged on the multiple carrier cascaded structure.
Further, in an embodiment of the invention, first catalyst converter is connected with least one second catalyst converter, the air pump is connected between first catalyst converter and the second catalyst converter, for via the gas after the first vector of first catalyst converter, fresh air is added before second catalyst converter is entered.
The present invention also provides a kind of motor vehicle exhaust emission after-treatment system, it includes the first catalyst converter, device is pumped into air secondary, also include being connected at least one catalyst converter after first catalyst converter, the air secondary, which is pumped into device, includes air pump, the air pump is arranged to be connected to after first catalyst converter, is to add fresh air before catalyst converter thereafter is entered via the gas of first catalyst converter.
Further, in an embodiment of the invention, second catalyst converter is connected with after first catalyst converter, the air pump is arranged to be connected between first catalyst converter and the second catalyst converter.
Further, in an embodiment of the invention, multiple catalyst converters are connected with after first catalyst converter, the multiple catalyst converter is arranged to cascaded structure, and the air valve that the air secondary is pumped into device is arranged to be connected between two catalyst converters of the medium position of the multiple catalyst converter cascaded structure.
Relative to prior art, the beneficial effects of the invention are as follows：The motor vehicle exhaust emission after-treatment system of the present invention sets air secondary to be pumped into device, not processed pernicious gas is obtained and handles required oxygen again, so as to be converted into normal discharge gas so that the exhaust emissions of place vehicle meets national standard.
Brief description of the drawings
Fig. 1 is a kind of building-block of logic of the motor vehicle exhaust emission after-treatment system provided according to an embodiment of the invention.
Fig. 2 is a kind of building-block of logic of the motor vehicle exhaust emission after-treatment system provided according to another embodiment of the invention.
Fig. 3 is a kind of building-block of logic of the motor vehicle exhaust emission after-treatment system provided according to the further embodiment of the present invention.
Fig. 4 is a kind of building-block of logic of the motor vehicle exhaust emission after-treatment system provided according to yet further embodiment of the invention.
Embodiment
Below with reference to drawings and examples, a kind of technical scheme of motor vehicle exhaust emission after-treatment system of the present invention is described in further detail.
An embodiment of the invention provides a kind of motor vehicle exhaust emission after-treatment system, and it includes air secondary and is pumped into device, wherein the air secondary is pumped into air filter, air pump and the air valve that device includes being sequentially connected by pipeline.
Wherein described air secondary is pumped into device, and it is mainly used on demand being pumped into fresh air in the ternary catalyzing unit or carrier after the first catalyst converter or its carrier, is to add fresh air via the gas after first catalyst converter or its carrier.
So, the unconverted CO of leading portion or other pernicious gases, for example, HC, NOx etc., in the presence of fresh air, can rapidly be oxidized in the ternary catalyzing unit or carrier after first piece of catalyst converter or carrier, change into CO2Or other nominal gas, for example, being converted into H2O、N2Etc..In this way, the CO discharges or the discharge of other pernicious gases of vehicle are reduced, so that overall exhaust emissions of vehicle meets national standard where it.
Refer to shown in Fig. 1, which illustrates a kind of motor vehicle exhaust emission after-treatment system provided according to an embodiment of the invention, the wherein catalyst system of vehicle where it includes multiple catalyst converters such as the first catalyst converter, the second catalyst converter ... N catalyst converters.
Wherein described air secondary is pumped into the air valve of device, it is arranged between first catalyst converter and second catalyst converter, so as to the gas to be treated via first catalyst converter, before second catalyst converter is entered, add fresh air so that the gas can be effectively addressed in second catalyst converter.
Further, in other embodiments, the air secondary is pumped into the air valve of device, may also be arranged between multiple catalyst converters.Such as, refer to shown in Fig. 2, in another embodiment, wherein described air secondary is pumped into the air valve of device, it is arranged between two catalyst converters of the medium position of multiple catalyst converter cascaded structures, and be not necessarily provided in whole cascaded structure between most the first two catalyst converter, or between most latter two catalyst converter.Its specific set location, can be depending on need to specifically needing, and unrestrictedly.
Further, in some cases, in the exhaust emissions processing catalyst converter of some vehicles, it can be provided with multiple carriers, and air secondary of the present invention is pumped into device, equally also it is applicable in this case.
Refer to shown in Fig. 3, in further embodiment, wherein being provided with multiple carriers such as first vector, Second support ... N carriers in the first catalyst converter of place vehicle.
Wherein described air secondary is pumped into the air valve of device, it is arranged between the first vector and the Second support, so as to the gas to be treated via the first vector, before the Second support is entered, add fresh air so that the gas can be effectively addressed in the Second support.
Further, in other embodiments, the air secondary is pumped into the air valve of device, may also be arranged between multiple carriers.Such as, refer to shown in Fig. 4, in another embodiment, wherein described air secondary is pumped into the air valve of device, it is arranged between two carriers of the medium position of multiple carrier cascaded structures, and be not necessarily provided in whole cascaded structure between most the first two carrier, or between most latter two carrier.Its specific set location, can be depending on need to specifically needing, and unrestrictedly.
A kind of motor vehicle exhaust emission after-treatment system disclosed by the invention, it sets air secondary to be pumped into device, not processed pernicious gas is obtained and handles required oxygen again, so as to be converted into normal discharge gas so that the exhaust emissions of place vehicle meets national standard.
The technical scope of the present invention is not limited solely to the content in described above, those skilled in the art can be on the premise of the technology of the present invention thought not be departed from, many variations and modifications are carried out to above-described embodiment, and these deformations and modification ought all should be within the scope of the present invention.
Claims (9)
- A kind of 1. motor vehicle exhaust emission after-treatment system, it is characterized in that, it includes the first catalyst converter, device is pumped into air secondary, the multiple carriers being provided with wherein described first catalyst converter including first vector, the air secondary, which is pumped into device, includes air pump, and the air pump is arranged to be connected to after the first vector, for for by the gas after the first vector enter other carriers before add fresh air.
- 2. a kind of motor vehicle exhaust emission after-treatment system according to claim 1, it is characterised in that wherein described air secondary, which is pumped into device, includes air filter, and it is connected with the air pump.
- 3. a kind of motor vehicle exhaust emission after-treatment system according to claim 2, it is characterised in that wherein described air secondary, which is pumped into device, includes air valve, and it is connected with the air filter and the air pump.
- A kind of 4. motor vehicle exhaust emission after-treatment system according to claim 1, it is characterized in that, the multiple carrier in wherein described first catalyst converter includes Second support, the first vector connects with the Second support, the air pump is connected between the first vector and the Second support, and fresh air is added to enter the gas in the Second support.
- A kind of 5. motor vehicle exhaust emission after-treatment system according to claim 1, it is characterized in that, multiple carriers in first catalyst converter are configured to cascaded structure, between two carriers of the medium position that the air valve that the air secondary is pumped into device is arranged on the multiple carrier cascaded structure.
- A kind of 6. motor vehicle exhaust emission after-treatment system according to claim 1, it is characterized in that, wherein described first catalyst converter is connected with least one second catalyst converter, the air pump is connected between first catalyst converter and the second catalyst converter, for via the gas after the first vector of first catalyst converter, fresh air is added before second catalyst converter is entered.
- A kind of 7. motor vehicle exhaust emission after-treatment system, it is characterized in that, it includes the first catalyst converter, device is pumped into air secondary, also include being connected at least one catalyst converter after first catalyst converter, the air secondary, which is pumped into device, includes air pump, and the air pump is arranged to be connected to after first catalyst converter, is to add fresh air before catalyst converter thereafter is entered via the gas of first catalyst converter.
- 8. a kind of motor vehicle exhaust emission after-treatment system according to claim 7, it is characterised in that be connected with second catalyst converter after first catalyst converter, the air pump is arranged to be connected between first catalyst converter and the second catalyst converter.
- A kind of 9. motor vehicle exhaust emission after-treatment system according to claim 7, it is characterized in that, multiple catalyst converters are connected with after first catalyst converter, the multiple catalyst converter is arranged to cascaded structure, and the air valve that the air secondary is pumped into device is arranged to be connected between two catalyst converters of the medium position of the multiple catalyst converter cascaded structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295086.4A CN107345494A (en) | 2016-05-06 | 2016-05-06 | A kind of motor vehicle exhaust emission after-treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295086.4A CN107345494A (en) | 2016-05-06 | 2016-05-06 | A kind of motor vehicle exhaust emission after-treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN107345494A true CN107345494A (en) | 2017-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295086.4A Pending CN107345494A (en) | 2016-05-06 | 2016-05-06 | A kind of motor vehicle exhaust emission after-treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322145A (en) * | 2020-03-31 | 2020-06-23 | 广西玉柴机器股份有限公司 | Control method and system for realizing ultralow emission of gas engine |
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| CN101559325A (en) * | 2008-04-16 | 2009-10-21 | 福特全球技术公司 | Catalyst system for reducing emission in exhaust flow of gas engine and method thereof |
| CN101684743A (en) * | 2008-09-26 | 2010-03-31 | 雅马哈发动机株式会社 | Saddle-riding type vehicle |
| CN101845981A (en) * | 2009-03-25 | 2010-09-29 | 雅马哈发动机株式会社 | Saddle-riding type vehicle |
| CN104847455A (en) * | 2015-06-05 | 2015-08-19 | 北京航空航天大学 | Gasoline engine particulate matter filter regeneration system and gasoline engine particulate matter filter regeneration method |
| CN206205958U (en) * | 2016-08-23 | 2017-05-31 | 浙江吉利罗佑发动机有限公司 | Air injection reaction cleaning system and vehicle |
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2016
- 2016-05-06 CN CN201610295086.4A patent/CN107345494A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2921308Y (en) * | 2006-06-23 | 2007-07-11 | 吕志兴 | Two-section reduction locomotive engine waste gas discharge apparatus |
| CN101559325A (en) * | 2008-04-16 | 2009-10-21 | 福特全球技术公司 | Catalyst system for reducing emission in exhaust flow of gas engine and method thereof |
| CN101684743A (en) * | 2008-09-26 | 2010-03-31 | 雅马哈发动机株式会社 | Saddle-riding type vehicle |
| CN101845981A (en) * | 2009-03-25 | 2010-09-29 | 雅马哈发动机株式会社 | Saddle-riding type vehicle |
| CN104847455A (en) * | 2015-06-05 | 2015-08-19 | 北京航空航天大学 | Gasoline engine particulate matter filter regeneration system and gasoline engine particulate matter filter regeneration method |
| CN206205958U (en) * | 2016-08-23 | 2017-05-31 | 浙江吉利罗佑发动机有限公司 | Air injection reaction cleaning system and vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322145A (en) * | 2020-03-31 | 2020-06-23 | 广西玉柴机器股份有限公司 | Control method and system for realizing ultralow emission of gas engine |
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Application publication date: 20171114 |