CN208718759U - Novel heavy-truck after-treatment system - Google Patents
Novel heavy-truck after-treatment system Download PDFInfo
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- CN208718759U CN208718759U CN201721517536.6U CN201721517536U CN208718759U CN 208718759 U CN208718759 U CN 208718759U CN 201721517536 U CN201721517536 U CN 201721517536U CN 208718759 U CN208718759 U CN 208718759U
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- Prior art keywords
- catalyst converter
- interlayer
- pair
- interface
- truck
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- 239000003054 catalyst Substances 0.000 claims abstract description 58
- 239000011229 interlayer Substances 0.000 claims abstract description 43
- 239000010410 layer Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 239000012783 reinforcing fiber Substances 0.000 claims description 4
- 238000003491 array Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 239000002283 diesel fuel Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000006555 catalytic reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- -1 oxynitrides Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 206010028813 Nausea Diseases 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000002173 dizziness Diseases 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 239000008275 solid aerosol Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 235000021179 potluck Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The utility model discloses a kind of Novel heavy-truck after-treatment devices, including shell, filter, conduit, first catalyst converter and the second catalyst converter, housing bottom is provided with connection frame, and shell leading flank is provided with air inlet pipe, shell trailing flank is provided with pod, and shell left side is provided with escape pipe, enclosure interior is divided into the first interlayer and the second interlayer, first interlayer and the second interlayer are arranged in parallel, and first interlayer one end connect with escape pipe, first interlayer is internally provided with the second catalyst converter, second interlayer is internally provided with filter, conduit and the first catalyst converter, and filter one end is connect by the first catalyst converter with air inlet pipe, pod leading flank is provided with first pair of interface and second pair of interface, and first pair of interface is arranged below second pair of interface, first pair of interface is connect with the filter other end, and second butt hole and conduit One end connection, the conduit other end are connect with the first interlayer other end.
Description
Technical field
The utility model belongs to tail gas disposal technique field, and in particular to a kind of Novel heavy-truck after-treatment system.
Background technique
Vehicle exhaust is the exhaust gas generated when automobile use, and containing hundreds of different compound, pollutant therein has
Solid aerosol, carbon monoxide, carbon dioxide, hydrocarbon, oxynitrides, lead and oxygen sulfur compound etc..
Tail gas can also exert far reaching influence to the environment of human lives while being directly detrimental to health.In tail gas
Sulfur dioxide have strong impulse smell, the generation of " acid rain " is easy to cause when reaching a certain concentration, causes soil and water
Source acidification, influences the growth of crops and forest.
In street corner bustling with vehicles, one strand of flue gas azury is sprayed from many motor vehicle tails, and here it is usual
Described vehicle exhaust.Not only smell is strange for this gaseous effluent, but also makes us dizzy, nauseous, influences the health of people.
In the case where vehicle is few, the self-purification capacity of atmosphere can still dissolve the toxin of automobile discharge.But sharply with automobile quantity
Increase, traffic congestion gets married normal potluck, and convenient, comfortable, the efficient advantage that automobile should have is gradually by excessive vehicle
It is offset." automobile disaster " has been formed, and thus bring vehicle exhaust is even more that no small harm is done.This gaseous effluent not only gas
Taste is strange, and makes us dizzy, nauseous, influences the health of people.Automobile exhaust gas processing apparatus is under the effect of the catalyst
It is purified tail gas, to mitigate the device of the pollution to environment.Scientific analysis shows different containing hundreds of in vehicle exhaust
Compound, pollutant therein have solid aerosol, carbon monoxide, carbon dioxide, hydrocarbon, oxynitrides,
Lead and oxygen sulfur compound etc..The harmful exhaust of one discharge in car 1 year is 3 times bigger than own wt;Existing tail gas unit device
Structure is complicated, at high cost, poor processing effect.
National 5th stage emission standard starts to carry out in China on January 1st, 2017, it is contemplated that 2022
Carry out national 6th stage emission standard year, the exhaust system of more harsh VI standard of state of a set of satisfaction of exploitation design has very much must
It wants, national 6th stage emission standard is especially made the discharge of particulate matter new due to harsh to the requirement to discharge pollutants
It is required that needing to install the basis of diesel oxidation catalyst DOC and selective catalytic reduction device SCR in diesel engine truck exhaust system
On, it to be also added diesel particulate filter (DPF), therefore design national 6th rank of the satisfaction equipped with DPF diesel particulate filter
The exhaust system of section discharge standard is necessary.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of satisfaction country the 6th
The Novel heavy-truck after-treatment system of stage emission standard, to solve the problems mentioned in the above background technology.
Technical solution: to achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of Novel heavy-truck after-treatment system meeting national 6th stage emission standard, including shell and its internal setting
Sequentially connected first catalyst converter, filter and the second catalyst converter, wherein it is parallel arrangement of that the enclosure interior is divided into left and right
Two interlayers, respectively the first interlayer and the second interlayer;It is disposed with the first catalyst converter from front to back in second interlayer
With diesel particulate filter (DPF), the second catalyst converter is provided in first interlayer;There is connection cavity between two interlayers,
For the first cavity, there is connection cavity between the first interlayer and shell, is the second cavity;Second catalyst converter is fixed on two companies
It connects between cavity, both ends are each passed through two connection cavities and are located on the partition of inside, and are supported by it fixation, and the second catalysis
The entrance and exit that device is located at both ends is respectively placed in the first cavity and the second cavity respectively;
Second catalyst converter is SCR catalyst (selective catalytic reduction device), and first catalyst converter is DOC catalyst converter
(diesel oil oxidation catalyst converter);
Outside is provided with air inlet pipe and connect with the first catalyst converter input end before second interlayer, on the outside of first interlayer
It is provided with escape pipe connection to connect with the second catalyst converter, first catalyst converter connects filter, the diesel particulate filter
The second catalyst converter is connected by conduit.
Further, the trailing flank of the shell is provided with pod, and the pod leading flank is provided with the first docking
Mouthful and second pair of interface, and first pair of interface is arranged below second pair of interface, and first pair of interface and setting are described the
The diesel particulate filter that two interlayer low insides are set is correspondingly connected with, second butt hole and setting position on the housing
The arrival end for the conduit set connects, and the conduit other end connects first cavity.Gas enters cavity by conduit, then into
Enter catalyst converter, catalyst converter is divided into about two arrangements, can increase through area, reduce exhaust back pressure.Form two of interlayer
Partition is for supporting catalyst converter, so gas must enter cavity by catalyst converter.
Further, the pod inner wall is provided with diversion trench, and diversion trench is spiral shape.
Further, the pod inner wall is also coated with heat resistant coating, and the heat resistant coating is from the inside to the outside successively by liquid
State adhesive layer, solid composite and phenolic coating composition, the solid composite from the inside to the outside successively by fire clay layer,
Carbon fiber layer and reinforcing fiber layer close-packed arrays composition.
Further, perforation was evenly arranged on the conduit, the penetration hole diameter of crossing is 2mm-5mm.
Further, second catalyst converter is a pair of of setting up and down, and along the center of short transverse in the first interlayer
Axis is symmetrical above and below.Second catalyst converter, which is divided into two, reduces back to increase the cross-sectional area passed through in limited installation space
Pressure.
Further, the housing bottom is provided with connection frame.
A method of the Novel heavy-truck after-treatment system meeting national 6th stage emission standard is urged using by DOC
Change device, then by diesel particulate filter, finally passes through bilayer SCR, specifically includes the following steps:
1) vehicle exhaust is entered in the second interlayer by air inlet pipe, carries out leading oxidation catalysis through the first catalyst converter first;
2) tail gas after step 1) oxidation enters in the diesel particulate filter connecting with the first catalyst converter, carries out gas
Filtering;
3) through the filtered tail gas of step 2) by pod water conservancy diversion, from the lower part uplink of shell, by catheter drainage from
The top of first interlayer enters;
4) enter the second catalyst converter in the first interlayer from the tail gas that the top of the first interlayer enters by the first cavity, into
Promoting the circulation of qi body catalyst converter and noise reduction processing, treated, and gas enters the second cavity, the outlet being finally arranged on the outside of the first interlayer
Pipe discharge.
The utility model has the advantages that the Novel heavy-truck after-treatment system provided by the utility model for meeting national 6th stage emission standard
And method has the advantage that compared with prior art
(1) the utility model structure is simple, install convenient, using safe, can effectively improve vehicle exhaust filter effect.
(2) the utility model is designed for national 6th stage emission standard, meets national 6th stage emission mark
Standard, and can satisfy noise and lower the requirement.
(3) in the utility model, in order to ensure to meet six exhaust emission standard of state, using by DOC catalyst converter into
The leading oxidation catalysis of row, then carries out gas filtration by DPF diesel particulate filter, is finally carrying out gas by bilayer SCR
Body catalyst converter and noise reduction.
(4) it in the utility model, in order to reduce the pollution of noise, is worn using being evenly arranged on conduit
Hole, while the diameter of perforation is crossed between 2mm-5mm.
(5) in the utility model, in order to improve the heat-resisting effect of pod, using the inner wall in water conservancy diversion over body case
It is coated with heat resistant coating, heat resistance, flame resistance, water resistance, the insulating properties having using phenolic coating are excellent, acid resistance
It is good;There is biggish rigidity and excellent rotproofness using fibrous layer;With excellent chemical stability and electrical insulating property;To
Improve its fire resistance.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the utility model side structure schematic view.
Fig. 3 is the utility model heat resistant coating schematic structural cross-sectional view.
Fig. 4 is the utility model interior three-dimensional space structure schematic diagram.
Fig. 5 is the utility model three-dimensional structure front view.
Fig. 6 is the utility model three-D space structure schematic diagram.
Specific embodiment
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.
According to following embodiments, the utility model can be better understood.However, those skilled in the art is easy reason
Solution, specific material proportion, process conditions and its result described in embodiment are merely to illustrate the utility model, without should
The utility model described in detail in claims will not be limited.
Fig. 1-2 and Fig. 4-6 is please referred to, the utility model provides a kind of technical solution: a kind of national 6th stage row of satisfaction
Put the Novel heavy-truck after-treatment system of standard, including shell 1, diesel particulate filter 2, conduit 3, the first catalyst converter 4 and second
Catalyst converter 5,1 bottom of shell are provided with connection frame 6, and for installing on the car body, the mounting rack of sufficient intensity can prevent cabinet
In vehicle traveling process since vibration is fallen.And 1 leading flank of shell is provided with air inlet pipe 7,1 trailing flank of shell is provided with water conservancy diversion
Cover 8, and 1 left side of shell is provided with escape pipe 9, and the first interlayer 10 and the second interlayer 11, the first interlayer are divided into inside shell 1
10 and second interlayer 11 be arranged in parallel, and 10 one end of the first interlayer is connect with escape pipe 9, and the first interlayer 10 is internally provided with
Two catalyst converters 5, the second interlayer 11 are internally provided with diesel particulate filter 2, conduit 3 and the first catalyst converter 4, and filter 2 one
End is connect by the first catalyst converter 4 with air inlet pipe 7, and 8 leading flank of pod is provided with first pair of interface 12 and second pair of interface
13, and first pair of interface 12 is arranged below second pair of interface 13, height design herein is so that gas needs after passing through DOC and DPF
To enter SCR i.e. the first cavity 21, the first cavity 21 is entered by conduit 3 again by pod 8, can enter to avoid gas whole
Body cavity 11, so that wall surface gas flows and the vibration of shell 1 is caused to cause radiated noise;First pair of interface 12 and diesel particulate filter
The connection of 2 other end of device, and the second butt hole 13 is connect with 3 one end of conduit, 3 other end of conduit and 10 other end of the first interlayer connect
It connects.Pod 8 will can enter 11 wall surface of large cavity by the air-flow of DPF the first cavity 21 of importing to avoid gas to be vibrated
Radiated noise.
The utility model structure is simple, install convenient, using safe, can effectively improve vehicle exhaust filter effect, together
When ensure to meet six exhaust emission standard of state, and can effectively carry out noise reduction process.
It was evenly arranged with perforation on conduit 3, and crosses penetration hole diameter between 2mm-5mm.It, can using this design structure
Effectively carry out noise reduction process, it is ensured that reduce the pollution of noise.
In the utility model, 8 inner wall of pod is provided with diversion trench, and diversion trench is spiral shape.Diversion trench is that arc is set
Meter, can reduce the resistance that air-flow passes through, while avoiding air-flow from directly impacting pod wall surface and Wall Vibration is caused to generate radiation
Noise.
As shown in figure 3,8 inner wall of pod is also coated with heat resistant coating 14, heat resistant coating 14 is solid composite 15, phenolic aldehyde
Resinous coat 16 and liquid adhesive layer 17, liquid adhesive layer 17 are coated in the lower section of solid composite 15, phenolic coating 16
Coated in 15 top of solid composite, solid composite 15 includes reinforcing fiber layer 18, carbon fiber layer 19 and fire clay layer
20, reinforcing fiber layer 18, carbon fiber layer 19 and fire clay layer 20 successively close-packed arrays;Using the inner wall in water conservancy diversion over body case
It is coated with heat resistant coating, heat resistance, flame resistance, water resistance, the insulating properties having using phenolic coating are excellent, acid resistance
It is good;There is biggish rigidity and excellent rotproofness using fibrous layer;With excellent chemical stability and electrical insulating property;To
Improve its fire resistance.
In addition, in the utility model, the second catalyst converter 5 is a pair of of setting up and down, and being designed to two, can to increase gas logical
Crossing area reduces exhaust back pressure, and excessive design will increase the volume of whole system, increase design cost, and multilayer is mounted on
Diaphragm strength can be reduced on partition, since the road surface of running car is very complicated, can generate vibration, these structural members require centainly
Endurance, should not weaken, therefore select two to form a pair of of symmetrical structure up and down;And second catalyst converter 5 be SCR catalysis
Device, first catalyst converter 4 are DOC catalyst converter;Filter 2 is diesel particulate filter;Using this design structure, can imitate really
Guarantor meets six exhaust emission standard of state, carries out leading oxidation catalysis using by DOC catalyst converter, is then filtered by diesel particulate
Device carries out gas filtration, is finally carrying out gas catalysis device and noise reduction by bilayer SCR.
The utility model is based on the diesel engine exhaust system design for meeting national 5th stage emission standard in order to full
The exhaust system of the 6th stage emission standard of foot country.Relative to five standard of state, state six makes exhaust emissions more harsh
It is required that specific to DPF diesel particulate filter is added in the design of exhaust system.So discharge mark should be met in the design
Standard will also guarantee installation strength and low exhaust back pressure.
The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (7)
1. a kind of Novel heavy-truck after-treatment system, it is characterised in that: sequentially connected the including shell (1) and its internal setting
One catalyst converter (4), diesel particulate filter (2) and the second catalyst converter (5), wherein it is parallel to be divided into left and right inside the shell (1)
Two interlayers being arranged, respectively the first interlayer (10) and the second interlayer (11);In second interlayer (11) from front to back according to
It is secondary to be provided with the first catalyst converter (4) and diesel particulate filter (2), the second catalyst converter is provided in first interlayer (10)
(5);There is connection cavity between two interlayers, is the first cavity (21), has connecting cavity between the first interlayer (10) and shell (1)
Body, for the second cavity (22);Second catalyst converter (5) is fixed between two connection cavities, and both ends are each passed through two companies
It connects cavity to be located on the partition of inside, and is supported by it fixation, and the second catalyst converter (5) is located at the entrance and exit difference at both ends
It is respectively placed in the first cavity (21) and the second cavity (22);
Second catalyst converter (5) is SCR catalyst, and first catalyst converter (4) is DOC catalyst converter;
Outside is provided with air inlet pipe (7) and connect with the first catalyst converter (4) input end before second interlayer (11), described first every
It is provided with escape pipe (9) connection on the outside of layer (10) to connect with the second catalyst converter (5), first catalyst converter (4) connects diesel oil
Grain filter (2), the diesel particulate filter (2) pass through conduit (3) connection the second catalyst converter (5).
2. Novel heavy-truck after-treatment system according to claim 1, it is characterised in that: the trailing flank of the shell (1) is set
It is equipped with pod (8), pod (8) leading flank is provided with first pair of interface (12) and second pair of interface (13), and first
To interface (12) setting below second pair of interface (13), first pair of interface (12) and setting are in second interlayer (11)
The diesel particulate filter (2) that low inside is set is correspondingly connected with, and second pair of interface (13) and setting are on the shell (1)
The arrival end of the conduit (3) of portion position connects, and conduit (3) other end connects first cavity (21).
3. Novel heavy-truck after-treatment system according to claim 2, it is characterised in that: pod (8) the inner wall setting
There is diversion trench, and diversion trench is spiral shape.
4. Novel heavy-truck after-treatment system according to claim 2, it is characterised in that: pod (8) inner wall also sprays
It is coated with heat resistant coating (14), the heat resistant coating (14) is from the inside to the outside successively by liquid adhesive layer (17), solid composite (15)
It is formed with phenolic coating (16), the solid composite (15) is from the inside to the outside successively by fire clay layer (20), carbon fiber
Layer (19) and reinforcing fiber layer (18) close-packed arrays composition.
5. Novel heavy-truck after-treatment system according to claim 1, it is characterised in that: be uniformly arranged on the conduit (3)
There is perforation, the penetration hole diameter of crossing is 2mm-5mm.
6. Novel heavy-truck after-treatment system according to claim 1, it is characterised in that: second catalyst converter (5) is upper
Lower a pair of of setting, and the central axis in the first interlayer (10) along short transverse is symmetrical above and below.
7. Novel heavy-truck after-treatment system according to claim 1, it is characterised in that: shell (1) bottom is provided with
Connection frame (6).
Priority Applications (1)
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CN201721517536.6U CN208718759U (en) | 2017-11-15 | 2017-11-15 | Novel heavy-truck after-treatment system |
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CN201721517536.6U CN208718759U (en) | 2017-11-15 | 2017-11-15 | Novel heavy-truck after-treatment system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107905873A (en) * | 2017-11-15 | 2018-04-13 | 南京航空航天大学 | Meet the Novel heavy-truck after-treatment system and method for national 6th stage emission standard |
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2017
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107905873A (en) * | 2017-11-15 | 2018-04-13 | 南京航空航天大学 | Meet the Novel heavy-truck after-treatment system and method for national 6th stage emission standard |
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