CN106414929B - Three-way catalyst and exhaust line, internal combustion engine and motor vehicles comprising it - Google Patents
Three-way catalyst and exhaust line, internal combustion engine and motor vehicles comprising it Download PDFInfo
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- CN106414929B CN106414929B CN201580012100.9A CN201580012100A CN106414929B CN 106414929 B CN106414929 B CN 106414929B CN 201580012100 A CN201580012100 A CN 201580012100A CN 106414929 B CN106414929 B CN 106414929B
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- way catalyst
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- internal combustion
- exhaust line
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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
- F01N3/101—Three-way catalysts
-
- 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
- F01N13/0093—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 of the same type
-
- 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
- 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
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
-
- 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
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2825—Ceramics
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/11—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hybrid vehicles
-
- 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
-
- 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
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to a kind of three-way catalyst (8), it can be realized three different reactions, wherein there is nitrogen oxides reduction to generate the oxidation reaction that the reaction of nitrogen and carbon dioxide, the oxidation reaction of carbon monoxide generation carbon dioxide and imperfect combustion hydrocarbon generate carbon dioxide and water, and the three-way catalyst is for assembling the exhaust line (4) that the internal combustion engine (1) of motor vehicles is equipped with.The three-way catalyst (8) includes the first basic three-way catalyst (8a) comprising metallic substrates and the second basic three-way catalyst (8b) comprising ceramic bases.
Description
Technical field
The present invention relates to a kind of three-way catalysts, can be realized three different reactions, wherein there is nitrogen oxides reduction
Generate the reaction of nitrogen and carbon dioxide, the oxidation reaction of carbon monoxide generation carbon dioxide and imperfect combustion nytron
Object generates the oxidation reaction of carbon dioxide and water, and the exhaust pipe that its internal combustion engine for being used to assemble motor vehicles is equipped with
Line.
Background technique
Hybrid vehicle is equipped with the internal combustion engine for that can move.Hybrid vehicle is also equipped with
There are the accessory drives of motor vehicles, such as electric motor or similar engine.
Internal combustion engine generates discharge gas, and discharge gas passes through exhaust line to the external rings outside internal combustion engine
Border discharge.Discharge gas includes the nitrogen oxides for wishing to restore in advance before its external environment discharges.Discharge gas also includes
Wish the carbon monoxide aoxidized in advance before its external environment discharges.Discharge gas finally includes wishing at it to outside
The imperfect combustion hydrocarbon aoxidized in advance before environmental emission.
By three-way catalyst a kind of known to file WO2013153081, three differences are realized inside the three-way catalyst
Reaction, wherein having, nitrogen oxides reduction generates the reaction of nitrogen and carbon dioxide, carbon monoxide generates the oxidation of carbon dioxide
Reaction and imperfect combustion hydrocarbon generate the oxidation reaction of carbon dioxide and water.
In order to work, three-way catalyst needs discharge gas to have specific temperature, faces so that three-way catalyst itself reaches
Boundary's temperature.However, the internal combustion engine of hybrid vehicle is typically placed to stop being substituted by accessory drives.At this
In the case of kind, exhaust line does not reboot the circulation of discharge gas, this causes the nocuousness of three-way catalyst cooling.
Summary of the invention
It is an object of the invention to propose a kind of three-way catalyst, three different reactions are allowed for, wherein there is nitrogen
Oxide reduction generates the reaction of nitrogen and carbon dioxide, carbon monoxide generates the oxidation reaction of carbon dioxide and imperfect combustion
Hydrocarbon generate carbon dioxide and water oxidation reaction, three-way catalyst assemble for assembling hybrid vehicle
The exhaust line that internal combustion engine is equipped with, three-way catalyst are effectively, including the internal combustion engine in hybrid vehicle
After stopping, three-way catalyst is light, it is fine and close, be easily achieved and at low cost.
Catalyst of the invention is three-way catalyst, can be realized three different reactions, wherein having nitrogen oxides also
The primary oxidation reaction and imperfect combustion hydrocarbonization that carbon dioxide is generated at the reaction of nitrogen and carbon dioxide, carbon monoxide
The oxidation reaction that object generates carbon dioxide and water is closed, and three-way catalyst is for assembling set by the internal combustion engine of motor vehicles
Some exhaust lines.
According to the present invention, three-way catalyst include comprising metallic substrates first foundation three-way catalyst and comprising ceramic base
The basic three-way catalyst of the second of bottom.
The present invention is particularly advantageous for forcing the working method for repeating the Thermal Motor for stopping and restarting, this is especially
It is to be known as " Stop in English in the case where having the hybrid vehicle using the driving method of Thermal Motor and motor
And Star (stop and starting) " abbreviation " STT " or be also known as being automatically stopped and resetting automatically in French start
In the case where machine, and for the work side of referred to as one-way clutch (being known as " free wheeling (one-way clutch) " in English)
The case where formula.In fact, metallic substrates are due to its thermally conductive metalline, connect when engine starts every time with discharge gas
Touching can quickly increase temperature, and therefore compared with the substrate of thermally conductive weaker Types of Pottery, metallic substrates can be more
Its three-way catalyst for being supported of early underground heat triggering (amorcer).Once the startup stage of engine terminates, by ceramic bases branch
The catalyst held is more and more as a part in the work of catalysis: synergistic effect is shown in conjunction with two kinds of substrates, according to
The stage (starting or stable travel phase) one " connecting " of engine another.The advantage is extremely important, particularly with
In accordance with following 6 standard of Chinese capital, which forces the driving pattern of the stopping of integrated engine.
According to the first variant embodiment, first foundation three-way catalyst and the second basic three-way catalyst are placed in respective
The inside of shell.
According to the second variant embodiment, first foundation three-way catalyst and the second basic three-way catalyst are placed in common
Enclosure interior.
According to third variant embodiment, first foundation three-way catalyst does not have shell.
In fact, substrate is metal, it can be designed to integrated metal outer enclosure, do not need additional point
From shell.Therefore substrate can be directly connected to exhaust line, do not need to be placed in the separation itself being connected on pipeline
Shell in.It is this to be configured with another advantage, in addition to the extra cost of the simplicity and shell installed on pipeline: utilizing
Direct connection, does not need that material is arranged between substrate and isolated shell, which, which absorbs, vibrates and be generally positioned
Interface to be formed between the substrate of Types of Pottery and the outer enclosure of substrate: no longer needing such boundary material, this
Also the advantages of embodying in terms of installing with cost, and this also allows metallic substrates bigger under selecting in equal volume on pipeline
Section (because no longer with the thickness of boundary material and outer enclosure).
First foundation three-way catalyst and the second basic three-way catalyst are preferably separated from each other with the distance being not zero.
Preferably, the volume of the first catalyst and the volume of the second catalyst are limited according to the following method of salary distribution :-for
One catalyst, by volume between 15 and 35%, especially near 25%, and-for the second catalyst, exist by volume
Between 85% and 65%, especially near 75%.
It is in fact possible to accurately quantify the part of every kind of catalyst shared, then exist after start-up so as to whole
It works as quickly as possible in duration.(jouer sur) every kind of substrate and/or the ruler of these substrates can simply be adjusted
The usual catalyst quantified in the form of volume of very little measurement is impregnated with rate.It, can be with here, for example under the isoconcentration of catalytic specie
Think that the volume ratio of about a quarter (metallic substrates)/3/4ths (ceramic bases) has been brought starting as a result, having
Catalytic effect from 20 seconds afterwards.Catalyst on the metallic substrate quickly works after the start of engine, because
Catalyst temperature increases discharge gas to be processed that is fast and there was only smaller flow when starting, then metallic substrates relative to
" small " size of ceramic bases is harmless, because than having less gas to be processed under stable traveling revolving speed, it is ceramic thus
Catalyst " connecting " in substrate, such as from after 100 seconds.
As explanation, 0.7 liter of metallic substrates can be then set for 2.5 liters of ceramic bases.
It is entire herein, precisely, catalyst include one or more compounds with photocatalysis property or
The formula of element, catalyst is by substrate (such as in known manner by being impregnated with) bearing.It is related to the size of catalyst, therefore can
It is a part of device in a broad sense indistinguishably to refer to catalyst or substrate.
Exhaust line of the invention is the exhaust line for being mounted with this three-way catalyst.
Internal combustion engine of the invention is equipped with the internal combustion engine of this exhaust line.
Motor vehicles of the invention are equipped with the motor vehicles of this internal combustion engine.
Motor vehicles are for example equipped with accessory drives.
Motor vehicles are for example equipped with stopping-activation system.
Detailed description of the invention
Further features and advantages of the invention are enable to show with the associated description as embodiment of attached drawing by reading
It is existing, in the accompanying drawings:
Fig. 1 to Fig. 3 is the schematic diagram for being mounted with the respective exhaust line of three-way catalyst of the invention.
Specific embodiment
On the diagram, hybrid vehicle allows it to move equipped with internal combustion engine 1.Internal combustion engine 1 is preferred
Ground is controlled ignition formula petrol engine.Internal combustion engine 1 generates pollutant, wherein having nitrogen oxides, carbon monoxide and not complete
The hydrocarbon to burn entirely.Hybrid vehicle equipped with unshowned accessory drives, such as electric motor or
Similar engine.
Internal combustion engine 1 generates discharge gas 2, passes through external environment 3 of the exhaust line 4 to 1 outside of internal combustion engine
Discharge.Discharge gas 2 includes nitrogen oxides, carbon monoxide and imperfect combustion hydrocarbon, should be in external environment 3
Discharge the content for minimizing them before them in advance.Therefore, exhaust line 4 disposes the after-treatment system 5 of discharge gas 2.After
Reason system 5 includes the three-way catalyst 8 for allowing for three different reactions, wherein reaction has nitrogen oxides reduction to generate nitrogen
Reaction, carbon monoxide with carbon dioxide generate the oxidation reaction of carbon dioxide and imperfect combustion hydrocarbon generates two
The oxidation reaction of carbonoxide and water.
Three-way catalyst 8 includes cylindrical or ovoid substrate, and substrate by being commonly referred to as coating
The compound of " washcoat (coating) " is impregnated with.Compound includes noble metal, allows catalytic CO and imperfect combustion
Hydrocarbon oxidation reaction and nitrogen oxides reduction reaction.
In order to work, three-way catalyst 8 needs to be increased to critical-temperature.Three-effect catalysis between around 300 ° and 350 °
Agent 8 reaches 50% efficiency and reaches its complete efficiency from 600 °.In order to optimize the raising of 8 temperature of three-way catalyst,
The three-way catalyst 8 is directly placed in the inside of the exhaust line 4 exported in internal combustion engine 1.
According to the inertia of used substrate and the substrate, under the action of passing through discharge gas 2 of three-way catalyst 8,
Even under the action of the heating device of three-way catalyst 8, three-way catalyst 8 more or less quickly increases temperature.
According to the present invention, three-way catalyst 8 include comprising metallic substrates first foundation three-way catalyst 8a and comprising pottery
The basic three-way catalyst 8b of the second of porcelain substrate.
First foundation three-way catalyst 8a with metallic substrates has weaker thermal inertia and rapidly increases temperature, this
Allow greater efficiency very early when specifying measurement and user job recycle and allow to optimize pollutant earlier to turn
It changes.Metallic substrates are covered by the compound, and wherein compound includes to allow catalytic CO and imperfect combustion hydrocarbon
The noble metal of the reduction reaction of the oxidation reaction and nitrogen oxides of compound.
The second basic three-way catalyst 8b with such as ceramic bases made of cordierite or similar material, has
Relatively stronger thermal inertia and therefore need more times with increase temperature and in specifying measurement and user's operation cycle more
Start to convert pollutant lately.Ceramic bases are also covered by the compound, and wherein compound includes to allow catalytic CO
With the noble metal of the reduction reaction of the oxidation reaction and nitrogen oxides of imperfect combustion hydrocarbon.
Not the case where it is not the working stage of extreme heat that motor vehicles, which have discharge gas 2, this may be when foot lifts,
Foot is cut off during lifting to 1 internal spray hydrocarbon fuel of internal combustion engine.There is also the idle work ranks of internal combustion engine 1
Section, for example, when motor vehicles equipped with it is commonly known in anglo Shandong-Anglo-Saxon family of languages be known as " Stop&Start (stop and
Starting) " be automatically stopped-starter when.This be for hybrid vehicle it is more appropriate, because of internal combustion engine 1
It is connected with the accessory drives of electric power type of engine or other types (such as compressed gas) engine.
In the case that internal combustion engine 1 it is idle these, be not passed through three-way catalyst 8 heat discharge gas 2 or
Person therefore this be cold discharge gas 2.
The second basic three-effect catalysis from the first foundation three-way catalyst 8a for including metallic substrates and including ceramic bases
The combination of agent 8b is to be collectively form three-way catalyst 8 of the invention, the work of the purification of discharge gas 2 in internal combustion engine 1
All situations under it is optimised.
When internal combustion engine 1 starts, the first foundation three-way catalyst 8a with weaker thermal inertia is rapidly increased
Temperature and permission handle the discharge of pollutant quickly to minimize it.
The second basis three-way catalyst 8b with stronger thermal inertia more slowly increases temperature and reaches after the several seconds
Its complete efficiency.
When the injection for cutting off hydrocarbon fuel or when internal combustion engine 1 stops, due to the implementation of stopping-starter
And/or the implementation of accessory drives, the first foundation three-way catalyst 8a with weaker thermal inertia rapidly reduce temperature
And its efficiency is lost, but when internal combustion engine 1 restarts or when restoring the injection of hydrocarbon fuel, has stronger
Second basis three-way catalyst 8b of thermal inertia keeps the higher temperature for allowing to handle the discharge of all contaminants.
First variant embodiment according to figure 1, the basic three-way catalyst of first foundation three-way catalyst 8a and second
8b is placed in the inside of respective shell 11a, 11b.Shell 11a, 11b for example respectively include the inorganic endothermic comprising ceramic fibre
Material layer.
Second according to Fig.2, implements variation example, the basic three-way catalyst of first foundation three-way catalyst 8a and second
8b is placed in the inside of common shell 12.Common shell 12 is also for example including the inorganic endothermic material comprising ceramic fibre
Layer.The basis first foundation three-way catalyst 8a and second three-way catalyst 8b is for example not to be between 10mm and 50mm
Zero distance D is separated from each other.These configurations allow to avoid the basic three-way catalyst 8b of first foundation three-way catalyst 8a and second
Between vibration propagation.These configurations also allow having for the basis three-way catalyst 8b of first foundation three-way catalyst 8a and second
The expansion of difference, without keeping any one of basic three-way catalyst 8a, 8b rotten.These configurations are last to allow detector 9
It is inserted between the basic three-way catalyst 8b of first foundation three-way catalyst 8a and second, detector 9 is for example to be known as lambda to visit
Survey the oxygen sensor of device.Secondly, according to discharge gas 2 in the flow direction 6 of the inside of exhaust line 4, exhaust line 4 also exists
8 upstream of three-way catalyst and/or in 8 arranged downstream detector 9 of three-way catalyst.
Third according to Fig.3, implements variation example, and first foundation three-way catalyst 8a does not have shell.
Claims (11)
1. a kind of three-way catalyst (8), can be realized three different reactions, wherein have nitrogen oxides reduction generate nitrogen and
The reaction of carbon dioxide, carbon monoxide generate the oxidation reaction of carbon dioxide and imperfect combustion hydrocarbon generates dioxy
Change the oxidation reaction of carbon and water, and the three-way catalyst is used to assemble what the internal combustion engines (1) of motor vehicles was equipped with
Exhaust line (4), which is characterized in that the three-way catalyst (8) includes the first foundation three-way catalyst comprising metallic substrates
(8a) and the second basic three-way catalyst (8b) comprising ceramic bases, the volume of the first foundation three-way catalyst (8a) and
The volume of described second basic three-way catalyst (8b) is limited according to the following method of salary distribution :-the first foundation triple effect is urged
Agent (8a), by volume between 15 and 35%, and-for the second basis three-way catalyst (8b), by volume
Between 85 and 65%.
2. three-way catalyst (8) according to claim 1, which is characterized in that the first foundation three-way catalyst (8a)
The inside of respective shell (11a, 11b) is placed in the described second basic three-way catalyst (8b).
3. three-way catalyst (8) according to claim 1, which is characterized in that the first foundation three-way catalyst (8a)
The inside of common shell (12) is placed in the described second basic three-way catalyst (8b).
4. three-way catalyst (8) according to claim 1, which is characterized in that the first foundation three-way catalyst (8a)
There is no shell.
5. three-way catalyst (8) according to claim 1, which is characterized in that the three-way catalyst (8) is directly connected to
The exhaust line.
6. three-way catalyst (8) according to claim 1, which is characterized in that the first foundation three-way catalyst (8a)
It is separated from each other with the described second basic three-way catalyst (8b) with the distance (D) being not zero.
7. three-way catalyst (8) according to claim 1, which is characterized in that the first foundation three-way catalyst (8a)
By volume near 25%, the described second basic three-way catalyst (8b) is by volume near 75%.
8. a kind of exhaust line (2), is mounted with three-way catalyst according to any one of claim 1 to 7 (8).
9. a kind of internal combustion engine (1), equipped with exhaust line according to claim 8 (4).
10. a kind of motor vehicles, equipped with internal combustion engine according to claim 9 (1).
11. motor vehicles according to claim 10, which is characterized in that the motor vehicles equipped with Thermal Motor/
Motor mixed type or stopping-activation system accessory drives.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1451728 | 2014-03-04 | ||
| FR1451728A FR3018310B1 (en) | 2014-03-04 | 2014-03-04 | THREE-WAY CATALYST |
| PCT/FR2015/050308 WO2015132491A1 (en) | 2014-03-04 | 2015-02-09 | Three-way catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106414929A CN106414929A (en) | 2017-02-15 |
| CN106414929B true CN106414929B (en) | 2019-07-12 |
Family
ID=50933320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580012100.9A Active CN106414929B (en) | 2014-03-04 | 2015-02-09 | Three-way catalyst and exhaust line, internal combustion engine and motor vehicles comprising it |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3114330A1 (en) |
| CN (1) | CN106414929B (en) |
| FR (1) | FR3018310B1 (en) |
| WO (1) | WO2015132491A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019101576A1 (en) * | 2019-01-23 | 2020-07-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Device and method for exhaust gas aftertreatment of an internal combustion engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1900427A1 (en) * | 2006-09-15 | 2008-03-19 | Daiichi Kigenso Kagaku Kogyo Co., Ltd. | Catalyst system for vehicle exhaust gas purification devices, exhaust gas purification device using the same, and method for purification of exhaust gases |
| CN101994550A (en) * | 2009-08-07 | 2011-03-30 | 通用汽车环球科技运作公司 | Electrically heated catalyst control system and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3603328B2 (en) * | 1993-10-01 | 2004-12-22 | マツダ株式会社 | Exhaust gas purification device |
| US6568179B2 (en) * | 2001-03-01 | 2003-05-27 | Engelhard Corporation | Apparatus and method for vehicle emissions control |
| JP3706075B2 (en) * | 2002-02-15 | 2005-10-12 | 本田技研工業株式会社 | O2 sensor and air-fuel ratio control device |
| JP4591240B2 (en) * | 2005-07-06 | 2010-12-01 | 日産自動車株式会社 | Exhaust characteristic detector and exhaust sensor heating method |
| EP2650042B2 (en) * | 2012-04-13 | 2020-09-02 | Umicore AG & Co. KG | Pollutant abatement system for gasoline vehicles |
-
2014
- 2014-03-04 FR FR1451728A patent/FR3018310B1/en active Active
-
2015
- 2015-02-09 EP EP15706900.6A patent/EP3114330A1/en not_active Ceased
- 2015-02-09 WO PCT/FR2015/050308 patent/WO2015132491A1/en active Application Filing
- 2015-02-09 CN CN201580012100.9A patent/CN106414929B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1900427A1 (en) * | 2006-09-15 | 2008-03-19 | Daiichi Kigenso Kagaku Kogyo Co., Ltd. | Catalyst system for vehicle exhaust gas purification devices, exhaust gas purification device using the same, and method for purification of exhaust gases |
| CN101994550A (en) * | 2009-08-07 | 2011-03-30 | 通用汽车环球科技运作公司 | Electrically heated catalyst control system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106414929A (en) | 2017-02-15 |
| FR3018310B1 (en) | 2020-07-31 |
| FR3018310A1 (en) | 2015-09-11 |
| EP3114330A1 (en) | 2017-01-11 |
| WO2015132491A1 (en) | 2015-09-11 |
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