CN203742729U - Catalytic converter assembly and exhaust system - Google Patents
Catalytic converter assembly and exhaust system Download PDFInfo
- Publication number
- CN203742729U CN203742729U CN201420069051.5U CN201420069051U CN203742729U CN 203742729 U CN203742729 U CN 203742729U CN 201420069051 U CN201420069051 U CN 201420069051U CN 203742729 U CN203742729 U CN 203742729U
- Authority
- CN
- China
- Prior art keywords
- catalytic converter
- discharge case
- assembly
- vent systems
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 claims abstract description 33
- 230000008569 process Effects 0.000 claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 description 12
- 239000004202 carbamide Substances 0.000 description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000010531 catalytic reduction reaction Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- XXLDWSKFRBJLMX-UHFFFAOYSA-N carbon dioxide;carbon monoxide Chemical compound O=[C].O=C=O XXLDWSKFRBJLMX-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- 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
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
-
- 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
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/08—Gas passages being formed between the walls of an outer shell and an inner chamber
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- 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)
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a catalytic converter assembly and an exhaust system. The catalytic converter assembly comprises a catalytic converter outer shell (21) and an outlet outer shell (22) of an outlet (3), wherein the catalytic converter outer shell (21) is formed to contain a catalytic converter. The outlet outer shell is formed to make the end (21b) of the catalytic converter outer shell extend into a cavity (26) formed by the outlet outer shell, wherein the outlet is arranged away from the end of the catalytic converter outer shell. In the using process, exhaust airflows flowing through the outlet outer shell flow through at least one part of the surface, facing outwards, of the catalytic converter outer shell. The utility model further discloses the exhaust system. According to the technical scheme, the catalytic converter can be shortened, so that the whole exhaust system is shortened to be applied within a large range, meanwhile, designing and verifying burdens are reduced, and the stock is reduced to the minimum.
Description
Technical field
The utility model relates to the catalytic converter assembly for internal-combustion engine.
Background technique
Vent systems for car combustion engine generally includes catalytic converter.This catalytic converter comprises catalyzer, and it reduces noxious emission by be converted into harm from the effulent of internal-combustion engine compared with little material by catalyzed chemical reaction.
Conventionally, catalytic converter must reach specified temp before it can work effectively.This temperature is known as " ignition " temperature.Therefore, catalytic converter can closely be connected to the venting gas appliance of internal-combustion engine, thus the noxious emission that reduces light-off time and reduce transition period.
But, in automobile application, under normal circumstances, near motor, almost there is no free space, therefore have to catalytic converter to Exhuster of engine near aspect make concessions.
In addition, the device of the vent systems that comprises catalytic converter is exclusively used in application-specific conventionally, for example specific vehicle.This be in the following areas less desirable: need carry out to this system additional designs and consequent parts stock's increase.
The utility model is intended to address these problems.
Model utility content
The purpose of this utility model is to provide near a kind of catalytic converter assembly and vent systems can be motor using in the application of limited space.
Provide a kind of catalytic converter assembly for internal-combustion engine according to first aspect of the present utility model, this catalytic converter assembly comprises: catalytic converter shell, and catalytic converter Shell structure becomes to hold catalytic converter; And comprise the discharge case of the outlet of catalytic converter assembly, discharge case is configured so that the end of catalytic converter shell extends in the discharge case chamber being formed by discharge case, the end that (set back from) catalytic converter shell is left in outlet at least in part arranges, in use, flow through the exhaust stream of discharge case through at least a portion of the outward surface of catalytic converter shell.
Catalytic converter assembly also can comprise spraying injector, and spraying injector can be configured to spraying to be expelled in discharge case chamber.Spraying injector can be configured to urea injection in discharge case chamber.
Catalytic converter shell and discharge case can form ring part in the overlap region of catalytic converter shell and discharge case.For example, the outer wall of the inwall of discharge case and catalytic converter shell can form ring part.Catalytic converter shell and discharge case can be roughly cylindrical shape, but both also can be other arbitrary shape.The cross-section area of ring part can equal the cross-section area of catalytic converter.
Export configurablely in catalytic converter shell and the overlapping region of discharge case, for example, so make this outlet to be communicated with ring part fluid.This outlet is configurable in the outer wall of discharge case.
The bootable exhaust stream from catalytic converter of discharge case is through outlet.Discharge case can comprise end wall.End wall can comprise the perforate of the end for holding the catalytic converter shell that extends to discharge case chamber.This end wall can be arranged by adjacent rings part.The end that this end wall can leave catalytic converter shell arranges.
Catalytic converter assembly can be configured to closely be connected with internal-combustion engine.This catalytic converter assembly can closely be connected to the outlet relevant to motor, for example enmgine exhaust outlet or turbosupercharger outlet.
Provide on the other hand a kind of vent systems for internal-combustion engine according to of the present utility model, it can comprise aforementioned catalytic converter assembly.
Vent systems also can comprise pump-down process assembly.This pump-down process assembly can be constructed the arranged downstream that is formed in catalytic converter assembly.
Vent systems also can comprise connecting tube.This connecting tube can be constructed to be formed between the outlet of catalytic converter assembly and pump-down process assembly and be settled.
Pump-down process assembly can comprise other catalytic converter.Pump-down process assembly can comprise diesel particulate filter.Pump-down process assembly can comprise selective catalytic reduction system operating.This pump-down process assembly can comprise the combination of selective catalytic reduction system operating and diesel particulate filter.Pump-down process assembly can comprise the combination in any of above-mentioned parts.
Pump-down process assembly is adjustable dimensionally, for example length.Exhaust after treatment system can be for application-specific specialized designs.
Vent systems also can comprise urea measuring apparatus.This urea measuring apparatus can be and urea is dispensed in discharge case chamber and is connected to discharge case.
This vent systems can be modular.One or more parts of this vent systems can be common in a series of vehicle platform.One or more component models of common vent systems in vent systems and a series of vehicle platform.
By the technical solution of the utility model, can shorten catalytic converter and shorten thus whole vent systems, applying in wider scope, can alleviate design and checking burden simultaneously and stock is down to minimum.
Brief description of the drawings
For understanding better the utility model and more clearly showing how to implement the utility model, existing by example with reference to accompanying drawing, wherein:
Fig. 1 shows the vent systems according to example of the present utility model;
Fig. 2 a and Fig. 2 b show according to the side cross-sectional, view of the catalytic converter assembly respectively and have without spraying injector of example of the present utility model;
Fig. 3 shows according to the end view cross-section of the catalytic converter assembly of example of the present utility model.
Embodiment
With reference to Fig. 1, the utility model relates to for automobile and in particular for the vent systems 10 of the internal-combustion engine of automobile.In particular instance, the utility model can be applicable to diesel engine, but it can similarly be applied to the motor of petrol engine or any other type.Vent systems 10 comprises catalytic converter assembly 20.As described in, vent systems 10 also can comprise pump-down process assembly 40, it can be placed in the downstream of catalytic converter assembly 20.
Connecting tube 50 is configurable between catalytic converter assembly 20 and pump-down process assembly 40.For example should be appreciated that, from the exhaust of internal-combustion engine (, from gas exhaust manifold or turbosupercharger, both are all not shown) and can flow into catalytic converter assembly 20 via entrance 24, then flow into pump-down process assembly 40 via connecting tube 50.Exhaust from pump-down process assembly 40 can be discharged from pump-down process assembly outlet 42.Then this exhaust can for example discharge from automobile via other conduit (not shown).
Catalytic converter assembly 20 can comprise catalytic converter (not shown), and it is configured to, by catalyzed chemical reaction, emissions from engines is changed into the less material of harm.For example, catalytic converter can change into carbon dioxide by carbon monoxide; Unburned hydrocarbon conversion is become to carbon dioxide and water; Conversion of nitrogen oxides is become to nitrogen; And/or the mixing of these reactions.But in specific device, catalytic converter can change into carbon monoxide carbon dioxide and/or unburned hydrocarbon is changed into carbon dioxide and water.The catalyzer of catalytic converter is configurable in cellular structure, and this structure can be pottery or metal.This catalyzer can comprise the combination of material or the above-mentioned material of platinum, palladium, rhodium, cerium, iron, manganese, nickel, copper, any appropriate.
Pump-down process assembly 40 can comprise another catalytic converter.The feature of describing with reference to last catalytic converter is equally applicable to another catalytic converter.Particularly, pump-down process assembly 40 can comprise conversion of nitrogen oxides being become to nitrogen or changing into nitrogen and the catalytic converter of water.For example, pump-down process assembly can comprise selective catalytic reduction system operating.
Additionally or alternatively, for another catalytic converter, pump-down process assembly 40 can comprise diesel particulate filter.In particular instance, pump-down process assembly 40 can comprise the combination of selective catalytic reduction system operating and diesel particulate filter, and for example, selective catalytic reduction system operating is configurable on the surface of diesel particulate filter.
Vent systems 10 can modularization.For example, catalytic converter assembly 20 and/or pump-down process assembly 40 are common in a series of vehicle platform.In this way, can alleviate the burden of design and checking and stock is down to minimum.In addition, by the function of difference catalytic converter and pump-down process assembly, the vent systems that configurable applicability is stronger.
But, pump-down process assembly 40 adjustable sizes, for example length.For example, the different a series of pump-down process assemblies 40 of configurable length.Pump-down process assembly is length difference only.In this way, exhaust after treatment system can for example, for application-specific (, specific vehicle) and custom-made.Design and checking to long or shorter pump-down process assembly can be realized easily, and the pump-down process assembly different with memory length can be supplied simply.
Connecting tube 50 can for example, for application-specific (, specific vehicle) and specialized designs.More easier than designing specific catalytic converter for every kind of vehicle for application-specific design connecting tube.Compared to the specific catalytic converter for every kind of vehicle, supply and to store a series of connecting tubes equally more simple.
With reference to Fig. 2 and Fig. 3, catalytic converter assembly 20 comprises: catalytic converter shell 21 and comprise the discharge case 22 of the outlet 23 of catalytic converter assembly.Just as mentioned above, catalytic converter assembly 20 can comprise catalytic converter, and recall converter shell 21 can be configured to hold catalytic converter 19.The bootable exhaust from catalytic converter 19 of discharge case 22 is through outlet 23.
Catalytic converter assembly 20 can be configured to closely be connected to internal-combustion engine.Catalytic converter assembly 20 can closely be connected to the outlet relevant to motor, for example, is connected to enmgine exhaust outlet or turbosupercharger outlet.
Catalytic converter assembly 20 can comprise entrance 24, and it is configured in entrance cone 25.Entrance cone 25 can be connected to the entry end 21a of catalytic converter shell 21.Entrance cone 25 can increase the cross-section area of the air-flow of the entry end 21a from entrance 24 to catalytic converter shell.
As described in, the outlet end 21b of catalytic converter shell 21 may extend in the chamber 26 being formed by discharge case 22.Therefore, the size of discharge case 22 (for example diameter) can be greater than the size of catalytic converter shell 21, at least like this in both overlap regions.The outlet end 21b that outlet 23 can be left catalytic converter shell 21 at least in part arranges.For example, a part for the perforate of formation outlet 23 can be left the outlet end 21b setting of catalytic converter shell 21.Alternatively, the whole perforate of formation outlet 23 can be left the outlet end 21b setting of catalytic converter shell 21.
Therefore, should expect, in use, the exhaust of flowing through discharge case 22 can be flow through the ring part 31(being formed by catalytic converter shell 21 and discharge case 22 as shown in arrow in Fig. 2 a and Fig. 2 b).Exhaust can be flow through at least a portion of the outward surface 27 of catalytic converter shell 21.
Discharge case 22 can comprise the first end wall 28a.The first end wall 28a can be approximately perpendicular to the longitudinal axis of catalytic converter shell 21, or as shown, the first end wall 28a can be with respect to the longitudinal axis of catalytic converter shell 21 at angle.The first end wall 28a can comprise perforate 29, for holding the outlet end 21b of the catalytic converter shell 21 that extends to discharge case chamber 26.In other words, the extensible perforate 29 of passing in the first end wall 28a of catalytic converter shell 21.The outlet end 21b that end wall 28a can leave catalytic converter shell 21 arranges.
Discharge case 22 can comprise the second end wall 28b.The second end wall 28b can extend across the end of discharge case 22.The second end wall 28b can be at the junction rounding of itself and discharge case 22.The second end wall 28b(for example, rounded edges) air-flow can be guided towards the ring part 31 being formed by catalytic converter shell 21 and discharge case 22 from catalytic converter.
Lining 18 can be arranged between catalytic converter 19 and catalytic converter shell 21.Lining 18 can leave one or two setting in entry end and outlet end 21a, the 21b of catalytic converter shell 21.
With reference to Fig. 2 b, catalytic converter assembly 20 also can comprise with the spraying injector 30 shown in schematic form.Spraying injector 30 can be configured to spraying (for example, drop spraying) to be expelled in discharge case chamber 26.In particular instance, spraying injector 30 can be configured to urea to be injected in discharge case chamber.The injection of urea can be used for the selective catalytic reduction reaction in pump-down process assembly 40.Therefore, can expect, vent systems 10 also can comprise urea measuring apparatus (not shown).This urea measuring apparatus can be connected to discharge case 22, for by urea dispensing to discharge case chamber.For example, due to air-flow turn to and/or this region in any turbulent flow, spraying is expelled to and in discharge case chamber 26, can makes spraying mix in a larger amount with exhaust.
As shown in Figure 3, catalytic converter shell 21 and discharge case 22 can form ring part 31 in both overlapping regions.For example, the inwall 32 of discharge case 22 and the outward surface 27 of catalytic converter shell 21 can form ring part 31.As shown, catalytic converter shell 21 and discharge case 22 can be roughly cylindrical shape, in the region of ring part 31, be at least cylindrical shape, but catalytic converter shell 21 and discharge case 22 can be any other shape.Catalytic converter shell 21 and discharge case 22 can be roughly coaxial, at least like this in the region of ring part 31.
Outlet 23 can be arranged in catalytic converter shell 21 and the overlapping region of discharge case 22.Therefore, outlet 23 can be communicated with ring part 31 fluids.Outlet 23 can be arranged in the outer wall 33 of discharge case 22.Outlet 23 can be connected to the connecting tube 50 of vent systems 10.
The cross-section area 34 of ring part 31 can be roughly equal with the cross-section area of catalytic converter 35.In this way, the flow that passes the exhaust of discharge case can not can be excessively subject to the impact of the exhaust that flows into ring part 31, and can make the pressure drop at catalytic converter assembly 20 two ends minimize.
Discharge case of the present utility model can shorten catalytic converter and can not affect the pressure drop at catalytic converter assembly two ends.This is because the sectional area of ring part and the exhaust stream holdup time in discharge case increases.
Should be appreciated that compared with shot-catalyst converter component and can in the application of relative broad range, use, especially in the application of the limited space of adjacent engine.Therefore, identical catalytic converter assembly 20 can use in a series of application, for example, in a series of vehicles, use.In this way, can alleviate design and checking burden and stock is down to minimum.
In addition, exhaust directly flows into catalytic converter and can guarantee to reach fast the initiation temperature of catalytic converter from motor.The outward surface that exhaust stream is crossed catalytic converter shell also can reclaim heat from exhaust, and auxiliary catalysis converter heats up more rapidly.In other words, the heat of exhaust can be passed to catalytic converter by the bedded position of catalytic converter shell and discharge case.
Claims (10)
1. for a catalytic converter assembly for internal-combustion engine, it is characterized in that, described catalytic converter assembly comprises:
Catalytic converter shell, described catalytic converter Shell structure becomes to hold catalytic converter; And
Comprise the discharge case of the outlet of described catalytic converter assembly, described discharge case is configured so that the end of described catalytic converter shell extends in the discharge case chamber being formed by described discharge case,
Wherein, the end that described catalytic converter shell is left in described outlet at least in part arranges, and in use, flows through the exhaust stream of described discharge case through at least a portion of the outward surface of described catalytic converter shell.
2. catalytic converter assembly according to claim 1, is characterized in that, described catalytic converter shell and described discharge case form ring part in described catalytic converter shell and the overlapping region of described discharge case.
3. catalytic converter assembly according to claim 2, is characterized in that, the cross-section area of described ring part equals the cross-section area of described catalytic converter.
4. according to the catalytic converter assembly described in claim 2 or 3, it is characterized in that, described outlet is configured in described catalytic converter shell and the overlapping region of described discharge case, and described outlet is communicated with described ring part fluid.
5. according to the catalytic converter assembly described in any one in claims 1 to 3, it is characterized in that, described discharge case comprises end wall, and described end wall comprises the perforate of the end for holding the catalytic converter shell that extends to described discharge case chamber.
6. for a vent systems for internal-combustion engine, it is characterized in that, described vent systems comprises the catalytic converter assembly described in aforementioned arbitrary claim.
7. vent systems according to claim 6, is characterized in that, described vent systems also comprises pump-down process assembly, and described pump-down process component structure is formed in the arranged downstream of described catalytic converter assembly.
8. vent systems according to claim 7, is characterized in that, described vent systems also comprises connecting tube, and described connecting tube structure is formed between the outlet of catalytic converter assembly and described pump-down process assembly to be settled.
9. according to the vent systems described in claim 7 or 8, it is characterized in that, described pump-down process assembly is adjustable dimensionally.
10. according to the vent systems described in claim 7 or 8, it is characterized in that one or more component models of common vent systems in described vent systems and a series of vehicle platform.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1302777.6A GB2510888A (en) | 2013-02-18 | 2013-02-18 | A catalytic converter assembly |
| GB1302777.6 | 2013-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742729U true CN203742729U (en) | 2014-07-30 |
Family
ID=48048534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420069051.5U Expired - Lifetime CN203742729U (en) | 2013-02-18 | 2014-02-17 | Catalytic converter assembly and exhaust system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN203742729U (en) |
| DE (1) | DE102014202727A1 (en) |
| GB (1) | GB2510888A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3037615B1 (en) * | 2015-06-17 | 2019-08-23 | Renault S.A.S | OPTIMIZED EXHAUST GAS CLEANING SYSTEM |
| DE102016122769A1 (en) * | 2016-11-25 | 2018-05-30 | Eberspächer Exhaust Technology GmbH & Co. KG | Exhaust gas treatment arrangement |
| DE102018133634A1 (en) * | 2018-12-27 | 2020-07-02 | Volkswagen Aktiengesellschaft | Exhaust aftertreatment system for an internal combustion engine |
| WO2020145050A1 (en) * | 2019-01-09 | 2020-07-16 | マレリ株式会社 | Exhaust gas treatment device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE291154T1 (en) * | 1999-12-09 | 2005-04-15 | Eminox Ltd | DEVICE FOR TREATING GAS FLOW |
| GB2381220B (en) * | 2001-10-25 | 2004-01-14 | Eminox Ltd | Gas treatment apparatus |
| GB0721528D0 (en) * | 2007-11-02 | 2007-12-12 | T Baden Hardstaff Ltd | Exhaust system |
| DE102010034705A1 (en) * | 2010-08-18 | 2012-02-23 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Compact exhaust treatment unit with addition of reactant |
-
2013
- 2013-02-18 GB GB1302777.6A patent/GB2510888A/en not_active Withdrawn
-
2014
- 2014-02-14 DE DE102014202727.6A patent/DE102014202727A1/en active Pending
- 2014-02-17 CN CN201420069051.5U patent/CN203742729U/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014202727A1 (en) | 2014-08-21 |
| GB201302777D0 (en) | 2013-04-03 |
| GB2510888A (en) | 2014-08-20 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
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| CX01 | Expiry of patent term |