CN209586472U - The ternary catalyzing unit and vehicle of carrier, integrated particle collection - Google Patents
The ternary catalyzing unit and vehicle of carrier, integrated particle collection Download PDFInfo
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- CN209586472U CN209586472U CN201821738454.9U CN201821738454U CN209586472U CN 209586472 U CN209586472 U CN 209586472U CN 201821738454 U CN201821738454 U CN 201821738454U CN 209586472 U CN209586472 U CN 209586472U
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- 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
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
This application provides a kind of carriers, ternary catalyzing unit applied to integrated particle collection, the carrier is wall-flow type carrier, and the multiple parallel ducts flowed through for Vehicular exhaust are offered along the axial direction of the carrier, are infiltrated with three-way catalyst coating in the cell walls in the duct；The first type of tamper evidence and the second type of tamper evidence are respectively arranged in the adjacent duct；First type of tamper evidence and second type of tamper evidence interlaced arrangement in the axial direction of the carrier, the quantity of first type of tamper evidence are at least two.The ternary catalyzing unit of above-mentioned integrated particle collection, pass through the first type of tamper evidence of interlaced arrangement and the second type of tamper evidence in the axial direction of carrier, and first type of tamper evidence quantity be at least two, so that after Vehicular exhaust is imported from duct, it will receive the ponding of the first type of tamper evidence and the second type of tamper evidence, Vehicular exhaust just flows out carrier after at least passing through two layers of cell walls, to improve the filter effect of three-element catalytic efficiency and particulate matter.
Description
Technical field
This application involves vehicle chassis technical fields, more particularly to a kind of carrier.
Background technique
It is increasingly stringent with vehicular emission standards, the pollutant catabolic gene of vehicle motor is required higher.Engine
Pollutant mainly have: particulate emission substance, hydrocarbon (HC), oxynitrides (NOx) and carbon monoxide (CO), this
By the carrier channel surfaces in catalyst converter redox reaction occurs for three kinds of pollutants, so produce harmless carbon dioxide,
Water and nitrogen.This redox catalysis process is known as three-element catalytic, which can be described as ternary catalyzing unit.Ternary catalyzing unit
Particulate emission substance can also be filtered while catalysis, but current ternary catalyzing unit is in the three-element catalytic of pollutant
The efficiency in terms of filtering with particulate matter is not high.
Summary of the invention
In view of the above problems, the application is proposed in order to provide overcoming the above problem or at least being partially solved above-mentioned ask
A kind of carrier of topic, in addition, also providing a kind of ternary catalyzing unit of integrated particle collection, and a kind of with the integrated particle
The vehicle of the ternary catalyzing unit of object trapping.
A kind of carrier, applied to the ternary catalyzing unit of integrated particle collection, the carrier is wall-flow type carrier, along described
The axial direction of carrier offers the multiple parallel ducts flowed through for Vehicular exhaust, is infiltrated with three-element catalytic in the cell walls in the duct
Agent coating；The first type of tamper evidence and the second type of tamper evidence are respectively arranged in the adjacent duct；First type of tamper evidence and described
Second type of tamper evidence interlaced arrangement in the axial direction of the carrier, the quantity of first type of tamper evidence are at least two.
In one embodiment, the quantity of first type of tamper evidence is two, is located at the carrier in the axial direction
Both ends；The quantity of second type of tamper evidence is one, positioned at the middle part of the carrier in the axial direction.
In one embodiment, the quantity of first type of tamper evidence is two, is located at the carrier in the axial direction
Both ends；The quantity of second type of tamper evidence is one, positioned at the middle part of the carrier in the axial direction.
In one embodiment, the cell walls shared between the adjacent duct are by first type of tamper evidence and described second
Type of tamper evidence is separated at least two sections in the axial direction, and described section of porosity of the cell walls is along the Vehicular exhaust flow direction
Successively reduce；And/or
The cell walls shared between the adjacent duct by first type of tamper evidence and second type of tamper evidence in the axial direction
At least two sections are separated into, described section of the three-way catalyst coating layer thickness or mass concentration of the cell walls are along the vehicle
Exhaust gas flow direction successively reduces.
In one embodiment, the wall-flow type carrier is the cordierite honeycomb ceramic carrier that porosity is 55%-65%.
In one embodiment, the three-way catalyst includes at least one of platinum, rhodium, palladium.
In one embodiment, type of tamper evidence is baffle, the baffle with a thickness of 8mm-10mm；The material of the baffle is
Honeycomb ceramic filter.
In one embodiment, the cross section in the duct is the polygon or round on four sides or more.
A kind of ternary catalyzing unit of integrated particle collection includes shell and the above-mentioned carrier that is placed in the shell.One
Kind vehicle, the ternary catalyzing unit with above-mentioned integrated particle collection.
Above-mentioned carrier passes through the interlaced arrangement in the axial direction of carrier applied to the ternary catalyzing unit of integrated particle collection
First type of tamper evidence and the second type of tamper evidence, and the quantity of the first type of tamper evidence is at least two, so that after Vehicular exhaust is imported from duct,
It will receive the ponding of the first type of tamper evidence and the second type of tamper evidence, Vehicular exhaust will be passed through at least just to flow out after two layers of cell walls and be carried
Body, to improve the filter effect of three-element catalytic efficiency and particulate matter.
Detailed description of the invention
It, below will be to attached needed in the description of the present application in order to illustrate more clearly of the technical solution of the application
Figure is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for this field
For those of ordinary skill, without any creative labor, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of structure chart of the ternary catalyzing unit for integrated particle collection that one embodiment of the application provides；
Fig. 2 is a kind of concrete structure diagram of the carrier of the ternary catalyzing unit of the integrated particle collection provided in Fig. 1；
Fig. 3 is the structure chart of the ternary catalyzing unit of another integrated particle collection；
Fig. 4 is a kind of structure chart of the ternary catalyzing unit for integrated particle collection that the application another embodiment provides；
Fig. 5 is the side view of carrier in Fig. 2.
Specific embodiment
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing and it is specific real
Applying mode, the present application will be further described in detail.Obviously, described embodiment is some embodiments of the present application, without
It is whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall in the protection scope of this application.
Fig. 1 is a kind of structure chart of the ternary catalyzing unit for integrated particle collection that one embodiment of the application provides.Such as Fig. 1
Shown, the ternary catalyzing unit of integrated particle collection includes shell 102 and the carrier 104 that is placed in shell 102, carrier 104
For wall-flow type carrier, the multiple parallel ducts 106 flowed through for Vehicular exhaust, the hole in duct 106 are offered along the axial direction of carrier 104
Three-way catalyst coating is infiltrated on road wall；The first type of tamper evidence and the second type of tamper evidence are respectively arranged in adjacent duct 106；The
One type of tamper evidence 108 and the second type of tamper evidence 110 interlaced arrangement in the axial direction of carrier 104, the quantity of the first type of tamper evidence 108 are extremely
It is two few.
Wherein, ternary catalyzing unit is mainly used for the three-element catalytic processing of Vehicular exhaust, and three-element catalytic refers to Vehicular exhaust
The pernicious gases such as CO, HC and NOx of discharge are changed into urging for harmless carbon dioxide, water and nitrogen by oxidation and reduction
Change.One end of vehicle inside exhaust pipe is connect with engine, the exhaust emissions that exhaust pipe is used to generate in engine to outside air
In.Ternary catalyzing unit is mounted in special exhaust pipe, so that the tail gas in exhaust pipe before being emitted into atmosphere, can be passed through first
The processing of ternary catalyzing unit, ternary catalyzing unit occur three-element catalytic and act on and filter out partial particulate pollutant, so that final row
The content for putting the pernicious gases such as CO, HC and NOx and particulate matter etc. in the tail gas into atmosphere is effectively reduced.
The material of shell 102 is unlimited, can be aluminium alloy, ceramics, plastics and organic synthesis material etc., as long as guarantor can be played
Protect the effect of interior carrier.Optionally, one layer of liner 112, lining can be set between the carrier and shell of three-way catalyst
Pad 112 can choose elastic construction, cause equipment broken to avoid collision is generated in vehicle travel process, between carrier and shell
Damage, influences service life of equipment.
The carrier 104 of ternary catalyzing unit is wall-flow type carrier, so that Vehicular exhaust is gone back in addition to can axially flow along duct
It can enter in adjoining cell channels 106 through cell walls.Carrier 104 can be one piece of porous ceramic film material, and claiming it is carrier, be because
Catalysis reaction is not participated in for itself, and is above and is covered with one layer of catalyst.Carrier 104 can be cylindrical structure,
The basal diameter of carrier 104 can be 118mm-144mm, highly can be 100mm-200mm, the density in duct on carrier 104
It can be 200cpsi-360cpsi, the thickness of cell walls can be 8mil-12mil.
First type of tamper evidence 108 and the second type of tamper evidence 110 play the role of blocking duct 106, so that Vehicular exhaust can not edge
Duct axially flows directly out carrier, and then Vehicular exhaust is forced to penetrate cell walls.Make with the catalyst coated in cell walls
With, realize three-element catalytic, meanwhile, the pollutant of some bulky grains will be filtered out when through cell walls.
For the catalysis to tail gas and the working principle of filter process is explained further, Fig. 2 is to carry in one embodiment of the application
The concrete structure diagram of body 104.6 parallel ducts 106 are illustratively depicted in Fig. 2, under upper come first and third,
It is provided with the second type of tamper evidence 110 in the duct 106 of five positions, comes in the duct 106 of second, four, six positions and is provided with first
Type of tamper evidence 108.For example, tail gas is flowed into from the duct of the third place 106, due to being provided with the second type of tamper evidence in the middle part of duct 106
110, ponding is generated, Vehicular exhaust cannot need to flow to directly along the axial outflow in duct 106 through the wall surface in duct 106
The duct of second, four adjacent positions.Since the first type of tamper evidence 108 and the second type of tamper evidence 110 are submitted in the axial direction of carrier 104
Mistake arrangement, flows into the Vehicular exhaust in second position duct 106, will receive the influence of the first type of tamper evidence 108, and tail gas cannot be directly along the
The axial outflow in two position duct 106, and the hole of the first and third adjacent position need to be flowed to through the wall surface in second position duct 106
Road 106.Thus, by interlaced arrangement the first type of tamper evidence 108 in the axial direction of carrier 104 and the second type of tamper evidence 110, and the
The quantity of one type of tamper evidence 108 is at least two, so that will receive 108 He of the first type of tamper evidence after Vehicular exhaust is imported from duct 106
The ponding of second type of tamper evidence 110, Vehicular exhaust just flows out carrier after at least passing through two layers of cell walls, to improve three
The filtering of first catalytic efficiency and particulate matter is imitated.
In general technology, as shown in figure 3,306 one end of duct on carrier 30 as one kind 4 is provided with for closing the stifled of duct 306
Plug member 310, the type of tamper evidence 310 of adjoining cell channels 306 is located at the different ends of carrier 30 as one kind 4 in the axial direction, in this setup
Under, tail gas can only pass through one layer of cell walls, so that the filter effect of three-element catalytic efficiency and particulate matter is poor.For example, tail gas from
The duct 306 of the third place flows into, and since 306 other end of duct of the third place is provided with type of tamper evidence 310, generates blocking and makees
With Vehicular exhaust cannot need to flow to adjacent directly along the axial outflow in the duct of the third place 306 through the wall surface in duct 306
Second, four positions duct 306, then tail gas directly from the duct 306 of second, four positions flow out carrier 30 as one kind 4.Therefore, this
Under the general set-up mode of kind, since tail gas can only pass through one layer of cell walls, so that the filtering of three-element catalytic efficiency and particulate matter
Effect can not show a candle to Fig. 1, the ternary catalyzing unit in 2.Also, the ternary catalyzing unit in Fig. 2 is on the basis of the ternary catalyzing unit of Fig. 3
On, only need to slightly change the position of type of tamper evidence and quantity can realize that tail gas is passed through twice or repeatedly coated with three-way catalyst
Wall surface of the hole, simply and effectively improve the filter effect of three-element catalytic efficiency and particulate matter.Also, compared to setting two that
This independent structure is filtered for multiple times, and the ternary catalystic device structure in the present embodiment is more compact, and the volume of occupancy is smaller.
In one embodiment, the first type of tamper evidence and the second type of tamper evidence can also use set-up mode as shown in Figure 4,
That is, the quantity of the first type of tamper evidence 410 is two, one of them is located at the one end of carrier in the axial direction；The number of second type of tamper evidence 408
Amount is two, one of them is located at the other end of carrier in the axial direction.So realize that tail gas is passed through three times coated with three-element catalytic
The wall surface of the hole of agent further improves the filter effect of three-element catalytic efficiency and particulate matter.For example, tail gas is from the third place
Duct 406 flow into, due in the duct 406 of the third place be equipped with type of tamper evidence 408, generate ponding, Vehicular exhaust cannot
Directly along the axial outflow in the duct of the third place 406, and adjacent second, four positions need to be flowed to through the wall surface in duct 406
Duct 406.Then, due to being equipped with type of tamper evidence 410 in the duct 406 of the second position, ponding is generated, Vehicular exhaust cannot be straight
Connect the axial outflow in duct 406 along the second position, and need to be flowed to through the wall surface in the duct 406 of the second position adjacent first,
The duct 406 of three positions.Further, due to being equipped with type of tamper evidence 408 in the duct 406 of first position, ponding, vehicle are generated
Tail gas cannot need to flow to adjacent second through the wall surface in duct 406 directly along the axial outflow in duct 406 of first position
Carrier 404 is flowed out in turn in the duct 406 of position.
The ternary catalyzing unit of integrated particle collection in the present embodiment, passes through interlaced arrangement first in the axial direction of carrier
Type of tamper evidence and the second type of tamper evidence, and the quantity of the first type of tamper evidence and the first type of tamper evidence is two, so that Vehicular exhaust is from duct
After importing, the ponding of the first type of tamper evidence and the second type of tamper evidence will receive, after Vehicular exhaust will at least pass through three layers of cell walls
Carrier is just flowed out, to improve the filter effect of three-element catalytic efficiency and particulate matter.
In one embodiment, referring again to Fig. 2, the quantity of the first type of tamper evidence 108 is two, is located at carrier in axis
Upward both ends；The quantity of second type of tamper evidence 110 is one, positioned at the middle part of carrier in the axial direction.
Wherein, in the range of the second type of tamper evidence 110 can be set 1/3 or 1/2 among carrier shaft is upward.Fig. 5 is in Fig. 2
The side view of carrier.The cross section view of carrier 104 can be the polygon of round, quadrangle etc.Due to exhaust pipe
Cross section is generally circular, and carrier 104 is provided in round and is conducive to for carrier being arranged in exhaust pipe, is contacted to maximum area
Tail gas in exhaust pipe.
The ternary catalyzing unit of integrated particle collection in the present embodiment, by setting two the first type of tamper evidence 108 respectively
The both ends upward in carrier shaft are set, second type of tamper evidence 110 is arranged in the upward middle part of carrier shaft, can make Vehicular exhaust
Carrier is flowed out after just passing through two layers of cell walls, passes through particulate emission substance, hydrocarbon in two layers of duct rear vehicle tail gas
(HC), the content of the pollutants such as oxynitrides (NOx) and carbon monoxide (CO), which has already decreased to, meets national emission standard, because
And the ternary catalyzing unit in the present embodiment has taken into account simplified structure and improves two aspect factors of vent gas treatment efficiency, has preferable
Practicability.
In one embodiment, the cell walls shared between adjoining cell channels 106 are by the first type of tamper evidence 108 and the second type of tamper evidence
110 are separated at least two sections in the axial direction, and along Vehicular exhaust flow direction, the porosity of the section of cell walls is successively reduced.
Wherein, as shown in Fig. 2, cell walls the first type of tamper evidence 108 and the second type of tamper evidence that are shared between adjoining cell channels 106
110 are separated into two sections in the axial direction.Along Vehicular exhaust flow direction, the porosity of the last period cell walls can be 70%-80%,
The porosity of latter section of cell walls is 60%-70%, and therefore, the last period cell walls can filter out the particulate emission being relatively large in diameter
Object, latter section of cell walls can filter out the lesser particle emission of diameter and can effectively improve particle by two layers of classified filtering
Emission filter effect, and the cell walls of first segment is avoided to be blocked since hole is too small by particle emission.
In one embodiment, the cell walls shared between adjoining cell channels are by the first type of tamper evidence and the second type of tamper evidence in axial direction
On be separated at least two sections, along Vehicular exhaust flow direction, the three-way catalyst coating layer thickness or mass concentration of the section of cell walls
Successively reduce.
Wherein, as shown in Fig. 2, the cell walls shared between adjoining cell channels 106 are by the first type of tamper evidence 108 and the second blocking
Part 110 is separated into two sections in the axial direction.Pd tenor can be in coating along Vehicular exhaust flow direction, the last period cell walls
It is 6-7g/ft3, Pd tenor can be 3-4g/ft in coating in latter section of cell walls3.For example, tail gas is from the third place
Duct 106 flows into, and due to being provided with the second type of tamper evidence 110 in the middle part of duct 106, tail gas flows to adjacent through the wall surface in duct 106
Second, four positions duct.When tail gas penetrates cell walls for the first time, most CO, HC and NOx etc. are harmful in tail gas
It is harmless carbon dioxide, water and nitrogen that gas, which has passed through three-element catalytic role transformation,.Therefore, second position duct is flowed into
106 Vehicular exhaust flows to the duct of the first and third adjacent position in its wall surface for followed by penetrating second position duct 106
When 106, the pernicious gases content such as remaining CO, HC and NOx is not high in tail gas, and catalyst content needed for catalytic process subtracts therewith
It is few.Therefore, by making cell walls along Vehicular exhaust flow direction, each section of three-way catalyst coating layer thickness or mass concentration is successively
It reduces, can not only ensure going on smoothly for catalytic process, but also save the dosage of catalyst, save the cost.
In one embodiment, wall-flow type carrier is the cordierite honeycomb ceramic carrier that porosity is 55%-65%.
Wherein, cell walls the first type of tamper evidence 108 and the second type of tamper evidence 110 shared between adjoining cell channels 106 is in the axial direction
It is separated into two sections.Wall-flow type carrier uses unified porosity for the cordierite honeycomb ceramic carrier of 55%-65%, in this way can be with
Simplify the manufacturing process of carrier.Meanwhile although the porosity difference of the porosity of latter section of cell walls and latter section of cell walls not
Greatly, but since tail gas breaks through two layers of cell walls, the means that carrier 104 can be filtered by this two layers stop or have adsorbed tail
Particulate matter and ash content in gas, and then improve particle emission filter effect.
In one embodiment, three-way catalyst includes at least one of platinum, rhodium, palladium.
Wherein, it is infiltrated with three-way catalyst coating on the duct wall surface in carrier 104, which can wrap
Palladium (Pd) coating and rhodium (Rh) coating are included, so that the aperture in the wall surface of the hole in duct 106 becomes smaller, porosity becomes smaller, and due to tail
Gas is secondary to pass through wall surface, and more raising particulate matter penetrates difficulty, further reduces granular material discharged.It is secondary to be also due to tail gas
It passes through, tail gas has secondary and palladium (Pd) coating and rhodium (Rh) coating layer touch chance, is more advantageous to and improves ternary catalyzing unit to carbon
The transformation efficiency of hydrogen compound (HC), nitrogen oxides (NOX) and carbon monoxide (CO), reduces these gas pollutants, so that this
Invention, which is more advantageous to, to be arranged at engine exhaust port.
In one embodiment, type of tamper evidence is baffle, baffle with a thickness of 8mm-10mm.
In one embodiment, the material of baffle is honeycomb ceramic filter.
Wherein, by setting honeycomb ceramic filter for the material of baffle, so that baffle can both play blocking duct
The effect of the vehicle exhaust axially to circulate in 104, but can make partial automobile tail gas through baffle when, generates three-element catalytic effect
And stop or adsorb particle contamination substance, improve the whole efficiency of ternary catalyzing unit.
In one embodiment, the cross section in duct is the polygon of quadrangle or pentagon or more.
Wherein, when penetrating into three-way catalyst coating in the cell walls in duct 106, accumulation is easy in the angle of cell walls
Excessive coating causes the filtering of duct angle cell walls and catalytic effect bad, influences the overall performance of ternary catalyzing unit.
Also, it is got over hour in the angle of cell walls, this coating accumulation is more serious.The cross section in the duct in the present embodiment avoids using
Triangle, because the angle of triangle is too small, the accumulation situation of coating material is more serious.When the cross section in duct use four sides with
On polygon when, this accumulation situation can greatly improve.
A kind of vehicle, the ternary catalyzing unit including above-mentioned integrated particle collection.Above-mentioned integrated of vehicle outfit
The ternary catalyzing unit of grain object trapping, by the first type of tamper evidence of interlaced arrangement and the second type of tamper evidence in the axial direction of carrier, and first
The quantity of type of tamper evidence is at least two, so that will receive the first type of tamper evidence and the second type of tamper evidence after Vehicular exhaust is imported from duct
Ponding, Vehicular exhaust just flows out carrier after at least passing through two layers of cell walls, thus improve three-element catalytic efficiency and
The filter effect of particulate matter.Therefore, the vehicle more clean and environmental protection, meets national emission standard.
Although preferred embodiments of the embodiments of the present application have been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and all change and modification within the scope of the embodiments of the present application.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above to the method and terminal device, input equipment of a kind of unlock provided herein, it is described in detail,
Specific examples are used herein to illustrate the principle and implementation manner of the present application, and the explanation of above embodiments is only used
The present processes and its core concept are understood in help；At the same time, for those skilled in the art, according to the application's
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitation to the application.
Claims (10)
1. a kind of carrier, the ternary catalyzing unit applied to integrated particle collection, which is characterized in that the carrier is wall-flow type load
Body offers the multiple parallel ducts flowed through for Vehicular exhaust along the axial direction of the carrier, penetrates into the cell walls in the duct
There is three-way catalyst coating；The first type of tamper evidence and the second type of tamper evidence are respectively arranged in the adjacent duct；Described first is stifled
Plug member and second type of tamper evidence interlaced arrangement in the axial direction of the carrier, the quantity of first type of tamper evidence is at least two
It is a.
2. carrier according to claim 1, which is characterized in that the quantity of first type of tamper evidence is two, is located at
The both ends of the carrier in the axial direction；The quantity of second type of tamper evidence is one, positioned at the middle part of the carrier in the axial direction.
3. carrier according to claim 1, which is characterized in that the quantity of first type of tamper evidence is two, one of them
Positioned at the one end of the carrier in the axial direction；The quantity of second type of tamper evidence is two, one of them is located at the carrier and exists
The other end in axial direction.
4. carrier according to claim 1, which is characterized in that the cell walls shared between the adjacent duct are by described the
One type of tamper evidence and second type of tamper evidence are divided at least two sections in the axial direction, and described section of porosity of the cell walls is described in
Vehicular exhaust flow direction successively reduces；And/or
The cell walls shared between the adjacent duct are divided into the axial direction by first type of tamper evidence and second type of tamper evidence
At least two sections, described section of the three-way catalyst coating layer thickness or mass concentration of the cell walls are along the Vehicular exhaust stream
Dynamic direction successively reduces.
5. carrier according to claim 1, which is characterized in that it is 55%-65%'s that the wall-flow type carrier, which is porosity,
Cordierite honeycomb ceramic carrier.
6. carrier according to claim 1, which is characterized in that the three-way catalyst includes platinum, rhodium, at least one in palladium
Kind.
7. carrier according to claim 1, which is characterized in that type of tamper evidence is baffle, the baffle with a thickness of 8mm-
10mm；The material of the baffle is honeycomb ceramic filter.
8. carrier according to claim 1, which is characterized in that the cross section in the duct be four sides more than polygon or
It is round.
9. a kind of ternary catalyzing unit of integrated particle collection, which is characterized in that including shell and be placed in the shell
The described in any item carriers of claim 1-8.
10. a kind of vehicle, which is characterized in that including the described in any item carriers of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821738454.9U CN209586472U (en) | 2018-10-25 | 2018-10-25 | The ternary catalyzing unit and vehicle of carrier, integrated particle collection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821738454.9U CN209586472U (en) | 2018-10-25 | 2018-10-25 | The ternary catalyzing unit and vehicle of carrier, integrated particle collection |
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|---|---|
| CN209586472U true CN209586472U (en) | 2019-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206978A (en) * | 2020-02-09 | 2020-05-29 | 太仓丹妮尔模塑汽配有限公司 | Automobile exhaust pipe with high purification efficiency and low air resistance |
-
2018
- 2018-10-25 CN CN201821738454.9U patent/CN209586472U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206978A (en) * | 2020-02-09 | 2020-05-29 | 太仓丹妮尔模塑汽配有限公司 | Automobile exhaust pipe with high purification efficiency and low air resistance |
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