CN101994549A - Method and apparatus for exhaust aftertreatment of internal combustion engine - Google Patents
Method and apparatus for exhaust aftertreatment of internal combustion engine Download PDFInfo
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- CN101994549A CN101994549A CN2010102608136A CN201010260813A CN101994549A CN 101994549 A CN101994549 A CN 101994549A CN 2010102608136 A CN2010102608136 A CN 2010102608136A CN 201010260813 A CN201010260813 A CN 201010260813A CN 101994549 A CN101994549 A CN 101994549A
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- base material
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- exhaust gas
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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
- F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
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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
- 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
- F01N13/011—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 purifying devices arranged in parallel
- F01N13/017—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 purifying devices arranged in parallel the purifying devices are arranged in a single housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
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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
- F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
Abstract
The invention relates to a method and an apparatus for exhaust aftertreatment of internal combustion engine. An exhaust gas aftertreatment device includes a single intake path for an exhaust gas feedstream from an internal combustion engine and a coated substrate including a first substrate portion fluidly in parallel with a second substrate portion. A flow modification device selectively restricts flow of the exhaust gas feedstream exclusively to the first substrate portion, exclusively to the second substrate portion, and concurrently to the first substrate portion and the second substrate portion in controllably variable proportions.
Description
Technical field
The disclosure relates to the exhaust after treatment system that is used for internal-combustion engine.
Background technique
Statement in this paragraph only provides the background information relevant with the disclosure and can not constitute prior art.
The known combustion by product that enters in the exhaust supply flow comprises carbon monoxide (CO), nitrogen oxide (NO
x) and particulate matter (PM) or the like.Unburned hydrocarbon (HC) also is present in the emissions from engines.Operate by product and the unburned HC that motor can produce different proportion with the air/fuel that changes than (comprising dense, rare and stoichiometric proportion).
Known after-treatment system can comprise a plurality of after-treatment devices.Each after-treatment device comprises coating material and/or particulate filter, in order to the composition in oxidation, absorption, desorb, reduction and the burning and gas-exhausting supply flow.Each after-treatment device is handled the by product of different by products and the different proportion that produces under different air/fuel ratios.The shortcoming that comprises the after-treatment system of a plurality of after-treatment devices is: in body bottom and engine compartment device, need additional space, the low efficiency long-pending relevant with extra thermal mass and surface for heat dissipation and since with back pressure formal compulsion exhaust supply flow through Engine torque loss that device was caused.
Summary of the invention
Exhaust gas post-treatment device comprises the single gas-entered passageway and the coating material that comprises first base material part parallel with the second base material part fluid that is used for from the exhaust supply flow of internal-combustion engine.The stream modifier optionally limits the exhaust supply flow and only flows into first base material part, only flows into second base material part, and flows into first base material part and second base material part simultaneously with controllable variable proportion.
In addition, the present invention also comprises following technological scheme.
1. 1 kinds of exhaust gas post-treatment devices of technological scheme comprise:
Be used for single gas-entered passageway from the exhaust supply flow of internal-combustion engine;
Coating material, described coating material comprise first base material part parallel with the second base material part fluid; And
Be configured to optionally limit described exhaust supply flow and only flow into described first base material part, only flow into described second base material part, and the stream modifier that flows into described first base material part and described second base material part with controllable variable proportion simultaneously.
Technological scheme 2. technological schemes 1 described exhaust gas post-treatment device is characterized in that, also comprises:
Described first base material part that comprises the washcoated layer of the exhaust supply flow that is configured to handle stoichiometric proportion; And
Comprise washcoated layer described second base material part that is configured to handle rare exhaust supply flow.
Technological scheme 3. technological schemes 1 described exhaust gas post-treatment device is characterized in that described first base material part is around described second base material part.
Technological scheme 5. technological schemes 4 described exhaust gas post-treatment devices is characterized in that, described primary importance allows exhaust only to flow through described first base material part.
Technological scheme 6. technological schemes 4 described exhaust gas post-treatment devices is characterized in that, the described second place allows exhaust only to flow through described second base material part.
Technological scheme 7. technological schemes 4 described exhaust gas post-treatment devices is characterized in that, described the 3rd position allows exhaust to flow through described first base material part and described second base material part simultaneously.
Technological scheme 8. technological schemes 1 described exhaust gas post-treatment device is characterized in that described first base material part links to each other with described second base material part.
Technological scheme 9. technological schemes 1 described exhaust gas post-treatment device is characterized in that with respect to blast air, described stream modifier is positioned at the upstream of described coating material.
Technological scheme 11. technological schemes 1 described exhaust gas post-treatment device is characterized in that described first base material part is configured to handle the oxygen enrichment exhaust.
12. 1 kinds of methods of technological scheme with exhaust gas post-treatment device disposal exhaust supply flow, described method comprises:
For described exhaust gas post-treatment device is equipped with single inlet passage, comprise the base material that is configured to the first portion parallel, be configured to control the stream modifier that described exhaust supply flow only flows through in described first portion and the described second portion and flows through described first portion and described second portion simultaneously with the second portion fluid;
The operation of monitoring motor; And
Move based on described motor and to control described stream modifier.
Technological scheme 13. technological schemes 12 described methods is characterized in that, also comprise:
When described motor during than operation, is controlled at primary importance with described stream modifier with the air/fuel of stoichiometric proportion.
Technological scheme 14. technological schemes 13 described methods is characterized in that, also comprise:
When described motor moves with rare air/fuel ratio, described stream modifier is controlled at the second place.
Technological scheme 15. technological schemes 14 described methods is characterized in that, also comprise:
When described motor moves with dense air/fuel ratio, described stream modifier is controlled at the 3rd position.
Technological scheme 16. technological schemes 12 described methods is characterized in that, also comprise:
Monitor the temperature of described exhaust supply flow; And
Control described stream modifier based on described temperature.
Technological scheme 17. technological schemes 16 described methods is characterized in that, also comprise:
Control described stream modifier based on the temperature of described exhaust supply flow, so that described exhaust supply flow only is inducted in described first portion and the described second portion one.
Description of drawings
To and one or more embodiments be described with reference to the accompanying drawings by example below, in the accompanying drawing:
Fig. 1 is the schematic representation according to exemplary engine system of the present disclosure;
Fig. 2 is the schematic representation according to the first exemplary after-treatment device of band control valve of the present disclosure;
Fig. 3 is the cross-sectional view according to the first exemplary substrate device of the present disclosure;
Fig. 4 is the schematic representation that is in the first exemplary after-treatment device of primary importance according to control valve of the present disclosure;
Fig. 5 is the schematic representation that is in the first exemplary after-treatment device of the second place according to control valve of the present disclosure;
Fig. 6 is the schematic representation that is in the first exemplary after-treatment device of the 3rd position according to control valve of the present disclosure;
Fig. 7 is the schematic representation according to the second exemplary after-treatment device of band control valve of the present disclosure; And
Fig. 8 is the cross-sectional view according to the alternative of the second exemplary substrate device of the present disclosure.
Embodiment
With reference now to accompanying drawing,, wherein diagram is just for some exemplary embodiment of graphical illustration, be not in order to limit embodiment, Fig. 1 schematically shows the exemplary spark-ignition direct-injection internal combustion engine 10 that constitutes according to embodiment of the present disclosure, subsidiary control module 5 and exhaust after treatment system 70.In an embodiment, same numeral refers to same parts.Exemplary engine 10 can optionally be moved under multiple combustion mode, comprises controlled auto-ignition combustion pattern, homogeneous spark-ignition combustion mode, stratified charge spark-ignition combustion mode and ignition by compression pattern.Exemplary engine 10 optionally is mainly operation under rare air/fuel ratio in stoichiometric proportion.The disclosure can be applicable to various burn cycle and internal-combustion engine system, and it comprises homogeneous charge compressing ignition, diesel engine, premixed charge compressing ignition and stratified charge spark-ignition direct-injection, and is not limited to these.
At least one suction valve and an outlet valve are corresponding to each cylinder and firing chamber.Preferably, suction valve and outlet valve respectively have a valve actuator.When each INO, can allow air and fuel to flow into corresponding firing chamber.When each outlet valve is opened, allow combustion by-products to flow out corresponding firing chamber and flow into after-treatment system 70 again.
Motor can comprise fuel injection system, and this fuel injection system comprises a plurality of high-pressure fuel injectors, and each fuel injector is suitable for responding from the signal of control module 5 and a large amount of fuel are directly sprayed in the firing chamber one.The pressurized fuel that comes from fuel dispensing system is provided to fuel injector.This motor can comprise spark ignition system, by this spark ignition system spark energy is offered spark plug, is used for responding from the signal of control module 5 and lights or assist to light the cylinder charging of each firing chamber.
Various sensing devices preferably are installed in the exemplary engine 10, are used to monitor the operation conditions and the exhaust of motor, for example, the air/fuel ratio sensor.Exhaust sensor monitoring exhaust supply flow, it can comprise the air/fuel ratio sensor in one embodiment.
Control module 5 is carried out the algorithmic code that is stored in this module and is controlled actuator with the operation of control motor, comprise: gate throttle position, ignition timing, fuel injection mass and timing, suction valve and/or outlet valve timing and phasing, and the exhaust gas recirculatioon valve position of the flow of control exhaust gas recirculation.Valve timing and phasing can comprise the lifting (heavily sucking in the strategy in exhaust) that negative valve overlap and outlet valve are opened again.Control module 5 be configured to receive come from the operator input signal (for example, accelerator pedal position and brake pedal position) determine operator's torque demand and from the input of sensor, indication engine speed and intake temperature, and coolant temperature and other environmental conditions.
Control module 5 is general purpose digital computer preferably, and this computer generally comprises: microprocessor or central processing unit; Storage medium, it comprises nonvolatile memory, comprises ROM (read-only memory) and EPROM; Random access memory; High-frequency clock; Analog to digital conversion circuit and D/A converting circuit; Input/output circuitry and device; And appropriate signals is regulated and the buffering circuit.Control module 5 has a cover control algorithm, comprises the resident program instructions and the calibration that are stored in the nonvolatile memory, and it is performed so that the function of expectation to be provided.This optimal algorithm selection ground is carried out in default cycle period.Algorithm is to be carried out by central processing unit, and can carry out the input that comes from aforementioned sensing device with monitoring, and utilizes default calibration to carry out control and diagnostics routines to control the operation of actuator.Cycle period can be carried out by the interval of rule, for example during engine operation and vehicle operating every 3.125,6.25,12.5,25 and 100 milliseconds.Perhaps, but the generation of response events and execution algorithm.
Exhaust after treatment system 70 is connected with gas exhaust manifold 39 fluids, and comprises catalyst substrates and/or trap base material, and it is operating as the composition in oxidation, absorption, desorb, reduction and the burning and gas-exhausting supply flow.Exhaust after treatment system 70 comprises one or more exhaust gas post-treatment device 48, and exhaust gas post-treatment device 48 preferably closely is connected to the gas exhaust manifold 39 of exemplary engine 10.
Fig. 2 and Fig. 3 illustrate the exhaust gas post-treatment device 48 that constitutes according to the disclosure.Exhaust gas post-treatment device 48 comprises: single entrance point 100, and its fluid is connected to gas exhaust manifold 39; With outlet end 200, be used to hold the exhaust supply flow.Exhaust gas post-treatment device 48 comprises: shell 130, it is connected to single entrance point 100 and outlet end 200.In one embodiment, shell 130 is cylindrical, and it is made of stainless steel or other material.Single entrance point 100 of shell 130 is divided into two circulation flow paths, comprises first exhaust passageway 110 and second exhaust passageway 120.Stream changes mechanism, and for example control valve 102, is to be connected to control module 5 with aspect, and is configured to change the exhaust supply flow that flows in first exhaust passageway 110 and second exhaust passageway 120.First exhaust passageway 110 is configured to first base material part, 140, the second exhaust passageways 120 that blast air is inducted into base material device 145 are configured to blast air is inducted into second base material part 150 of base material device 145.
Exhaust gas post-treatment device 48 comprises base material device 145, and this base material device 145 comprises first base material part 140 and second base material part 150.First base material part 140 is parallel with respect to the fluid ground of exhaust supply flow with second base material part 150, and respectively has a plurality of parallel stream passages that exhaust can be flow through.The fluid parallel portion is understood as that the exhaust that a part is flow through in expression can't also flow through another part.In one embodiment, base material 145 is by stupalith, and for example steinheilite forms, and has the circulation passage that density is approximately 62 to 96 grid/square centimeters (400～600 grid/square inches), and the wall thickness between the circulation road is approximately 3 to 7 mils.In one embodiment, base material 145 is to be formed by undulatory stainless steel.First base material part 140 of base material 145 and the circulation road of second base material part 150 can be coated with different washcoated layer materials respectively, for example the active material of aluminium oxide and zeolite and different densities and quality, for example platinum metal and other metal.Exemplary catalytically-active metals can comprise: platinum metal, and it comprises platinum (Pt), palladium (Pd) and rhodium (Rh); And non-platinum metal, it comprises iron (Fe), copper (Cu), thallium (T1) and vanadium (Va).In one embodiment, one in first base material part 140 and second base material part 150 comprises washcoated layer and the catalytically-active materials of handling the oxygen enrichment exhaust at a lower temperature, and another then is included in washcoated layer and the catalytically-active materials of handling exhaust under the higher temperature.
Fig. 3 illustrates an embodiment's of the base material device 145 with the first parallel base material part 140 of fluid and second base material part 150 cross-sectional view.This cross-sectional view illustrates base material 145 and has the basic circular cross section that is.Second base material part 150 has circular cross section, and the diameter of this cross section is less than the diameter of base material device 145, and second base material part 150 has the annular cross section of external first base material part 140.
The embodiment of graphical illustration control valve 102 among Fig. 2, control valve 102 comprises tubular structure 105, and tubular structure 105 has porous end 106, and porous end 106 is connected to member 107, and member 107 comprises that covering shape holds 108.At the motor run duration, motor 10 produces the exhaust supply flow that comprises each constituent, and described constituent comprises hydrocarbon (HC), carbon monoxide (CO), nitrogen oxide (NOx) and particulate matter (PM) or the like.With the air/fuel ratio that changes, comprise that dense, rare 10 meetings with stoichiometric proportion operation motor produce the constituent of different proportion, therefore cause different reprocessing schemes, for example be used for the different catalysts of NOx discharging at rare motor run duration.Preferably, exhaust gas post-treatment device 48 is configured to handle the constituent that is compared the different proportion that is produced by different air/fuels.
Motor operation can be included in the variation of the air/fuel ratio of transformation between the various combustion modes and engine emission.Control valve 102 bootable exhaust supply flows flow in first exhaust passageway 110 and second exhaust passageway 120 and flow into first exhaust passageway 110 simultaneously and second exhaust passageway 120.For example,, the exhaust supply flow can be guided through second exhaust passageway 120 at rare motor run duration, and at stoichiometric proportion or dense motor run duration, can be with the guiding of exhaust supply flow through first exhaust passageway 110.
Fig. 4～Fig. 6 illustrates the control valve 102 of a plurality of positions that are positioned at exhaust gas post-treatment device 48.When control valve 102 being controlled to be when leaving first base material part 140 and second base material part 150, tubular structure 105 allows the exhaust gas to first exhaust passageway 110, the exhaust of flowing through first base material part 140 is increased gradually, and the exhaust of flowing through second base material part 150 is reduced gradually.Member 107 and lid shape end 108 stop blast air to cross second base material part 150 gradually.When control valve 102 was controlled at primary importance (being shown in Fig. 4), lid shape end stoped exhaust to flow into second base material part 150 fully, and tubular structure 105 allows the exhaust gas to first base material part 140.When control valve 102 being controlled to be towards first base material part 140 and second base material part 150, tubular structure 105 stops exhaust to flow into first exhaust passageway 110, the exhaust of flowing through second base material part 150 is increased gradually, and the exhaust of flowing through first base material part 140 is reduced gradually.When control valve 102 was controlled at the second place (being shown in Fig. 6), tubular structure 105 stoped exhaust to flow into first base material part 140 fully, and the lid shape end 108 of member 107 allows the exhaust gas to second base material part 150.
Fig. 4 illustrates the exhaust gas post-treatment device 48 that control valve 102 is positioned at primary importance, controls the exhaust supply flow thus and flows through first exhaust passageway 110.Stop the exhaust supply flow by second exhaust passageway 120.Like this, the composition in first base material part, 140 oxidations, absorption, reduction and the burning and gas-exhausting supply flow.
Fig. 5 illustrates the exhaust gas post-treatment device 48 that control valve 102 is positioned at the second place, controls the exhaust supply flow thus and flows through second exhaust passageway 120.Stop the exhaust supply flow by first exhaust passageway 110.Like this, the composition in second base material part, 150 oxidations, absorption, reduction and the burning and gas-exhausting supply flow.
Fig. 6 illustrates the exhaust gas post-treatment device 48 that control valve 102 is positioned at the 3rd position of primary importance and second place centre, allows the exhaust supply flow to flow through first exhaust passageway 110 and second exhaust passageway 120 simultaneously thus.Composition in first base material part 140 and second all oxidations of base material part 150, absorption, reduction and the burning and gas-exhausting supply flow.
Fig. 7 illustrates the alternative of exhaust gas post-treatment device 48.In this alternative, base material 145 comprises first base material part 140, and it links to each other with second base material part 150.Control valve 102 is connected to control module 5 with aspect, and control valve 102 is configured to control the exhaust supply flow and flows into first base material part 140 and second base material part 150.When control valve 102 was positioned at primary importance, blast air was crossed first exhaust passageway, 110 to first base material parts 140 and is stoped exhaust to flow into second base material part 150.When control valve 102 was positioned at the second place, blast air was crossed second exhaust passageway, 120 to second base material parts 150 and is stoped exhaust to flow into first base material part 140.When control valve 102 was positioned at the 3rd position of primary importance and second place centre, blast air was crossed first exhaust passageway 110 and second exhaust passageway, 120 to first base material parts 140 and second base material part 150.
Fig. 8 illustrates the cross-sectional view of the base material that is described with reference to Fig. 7, and wherein first base material part 140 links to each other with second base material part 150.
The disclosure has been described some preferred embodiment and modification thereof.Other people can read and understand on the basis of this specification and make further modification and change.Therefore, the disclosure should not be restricted to realize the contemplated disclosed specific embodiment of optimal mode of the disclosure, and the disclosure will comprise falling all embodiments within the scope of the claims.
Claims (10)
1. exhaust gas post-treatment device comprises:
Be used for single gas-entered passageway from the exhaust supply flow of internal-combustion engine;
Coating material, described coating material comprise first base material part parallel with the second base material part fluid; And
Be configured to optionally limit described exhaust supply flow and only flow into described first base material part, only flow into described second base material part, and the stream modifier that flows into described first base material part and described second base material part with controllable variable proportion simultaneously.
2. the described exhaust gas post-treatment device of claim 1 is characterized in that, also comprises:
Described first base material part that comprises the washcoated layer of the exhaust supply flow that is configured to handle stoichiometric proportion; And
Comprise washcoated layer described second base material part that is configured to handle rare exhaust supply flow.
3. the described exhaust gas post-treatment device of claim 1 is characterized in that, described first base material part is around described second base material part.
4. the described exhaust gas post-treatment device of claim 1 is characterized in that, described stream modifier can be controlled to a plurality of positions, comprising: primary importance makes described exhaust supply flow only flow into described first base material part; The second place makes described exhaust supply flow only flow into described second base material part; And the 3rd position in the middle of the described primary importance and the second place, make described exhaust supply flow flow into described first base material part and described second base material part simultaneously with ratio corresponding to described the 3rd position.
5. the described exhaust gas post-treatment device of claim 4 is characterized in that, described primary importance allows exhaust only to flow through described first base material part.
6. the described exhaust gas post-treatment device of claim 4 is characterized in that, the described second place allows exhaust only to flow through described second base material part.
7. the described exhaust gas post-treatment device of claim 4 is characterized in that, described the 3rd position allows exhaust to flow through described first base material part and described second base material part simultaneously.
8. the described exhaust gas post-treatment device of claim 1 is characterized in that, described first base material part links to each other with described second base material part.
9. the described exhaust gas post-treatment device of claim 1 is characterized in that, described first base material part is configured to handle the oxygen enrichment exhaust.
10. dispose the method for exhaust supply flow with exhaust gas post-treatment device for one kind, described method comprises:
For described exhaust gas post-treatment device is equipped with single inlet passage, comprise the base material that is configured to the first portion parallel, be configured to control the stream modifier that described exhaust supply flow only flows through in described first portion and the described second portion and flows through described first portion and described second portion simultaneously with the second portion fluid;
The operation of monitoring motor; And
Move based on described motor and to control described stream modifier.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/544,532 US20110041482A1 (en) | 2009-08-20 | 2009-08-20 | Method and apparatus for exhaust aftertreatment of an internal combustion engine |
| US12/544532 | 2009-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101994549A true CN101994549A (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102608136A Pending CN101994549A (en) | 2009-08-20 | 2010-08-20 | Method and apparatus for exhaust aftertreatment of internal combustion engine |
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| Country | Link |
|---|---|
| US (1) | US20110041482A1 (en) |
| CN (1) | CN101994549A (en) |
| DE (1) | DE102010034104A1 (en) |
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- 2010-08-20 CN CN2010102608136A patent/CN101994549A/en active Pending
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979795A (en) * | 2017-06-02 | 2018-12-11 | 通用汽车环球科技运作有限责任公司 | The system and method for controlling exhaust stream by double after-treatment devices |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110041482A1 (en) | 2011-02-24 |
| DE102010034104A1 (en) | 2011-04-21 |
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Application publication date: 20110330 |