CN102777239A - Exhaust after treatment system and method for treating exhaust - Google Patents
Exhaust after treatment system and method for treating exhaust Download PDFInfo
- Publication number
- CN102777239A CN102777239A CN2012102157906A CN201210215790A CN102777239A CN 102777239 A CN102777239 A CN 102777239A CN 2012102157906 A CN2012102157906 A CN 2012102157906A CN 201210215790 A CN201210215790 A CN 201210215790A CN 102777239 A CN102777239 A CN 102777239A
- Authority
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- China
- Prior art keywords
- exhaust
- blast air
- inlet
- suction casing
- pollutant
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- 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.)
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Classifications
-
- 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
- F01N3/106—Auxiliary oxidation catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
-
- 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
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb 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
- 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
-
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (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)
- Dispersion Chemistry (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to an exhaust after treatment system and method for treating exhaust. In one exemplary embodiment of the invention, an exhaust after treatment system is provided, including an inlet housing, an inlet in the inlet housing configured to receive an exhaust gas flow from an internal combustion engine, and an outlet in the inlet housing configured to direct the exhaust gas flow to a pollutant reduction device. The system also includes a deflector coupled to an inner surface of the inlet housing, the deflector configured to receive the exhaust gas flow from the inlet and uniformly direct the exhaust flow through the outlet and to the pollutant reduction device.
Description
Technical field
Exemplary embodiment of the present invention relates to explosive motor, and relates in particular to the exhaust after treatment system of explosive motor.
Background technique
The explosive motor particularly MANUFACTURER of DENG is faced with the challenge task: meet about the nitrogen oxide particularly nitrous oxide and the emission standard in the current and future of combustion and the release of partial oxidation hydrocarbon, carbon monoxide, particulate matter and other pollutant not.In order to reduce the pollutant emission of explosive motor, exhaust after treatment system is used for reducing the pollutant in the exhaust of flowing out from motor.
Exhaust after treatment system generally includes one or more after-treatment devices, for example oxidation catalyst, catalytic converter, mixer element and urea-spray device.The variant of blast air has a negative impact as lacking the performance that evenly fails to be convened for lack of a quorum to after-treatment system, therefore causes that the pollutant of not expecting discharges from system.Along with emission standard becomes more and more stricter, the uniformity when improving the blast air entering and flowing through after-treatment system is expected for satisfying these standards with distributing.
Summary of the invention
In one exemplary embodiment of the present invention, a kind of exhaust after treatment system is provided, it comprises: suction casing; Inlet in this suction casing, it is configured to receive blast air from explosive motor; With the outlet in this suction casing, it is configured to be directed to pollutant to blast air and reduces device.This system also comprises the inflector of the internal surface that is connected to this suction casing, and this deflector configurations will becomes from this inlet to receive blast air and guide this blast air to export to pollutant minimizing device through this equably.
In another exemplary embodiment of the present invention, a kind of method from the exhaust of explosive motor that is used to handle is provided, the step that this method comprises has: receive the blast air that comes from explosive motor via the inlet in the housing; And guide this blast air to form the outlet that even blast air is sent to housing.This method comprises that further this even exhaust of guiding flows to pollutant and reduces device.
The invention still further relates to following solution:
1. exhaust after treatment system comprises:
Suction casing;
Inlet in the said suction casing, it is configured to receive blast air from explosive motor;
Outlet in the said suction casing, it is configured to be directed to the pollutant that is arranged in the said exhaust after treatment system to blast air and reduces device; With
Be connected to the inflector of the internal surface of said suction casing, said deflector configurations will becomes to receive from the blast air of said inlet and guides said blast air to reduce device through the said pollutant that exports to equably.
2. like solution 1 described system, comprise a plurality of inflectors that extend from said internal surface perpendicular.
3. like solution 2 described systems, wherein, said a plurality of inflectors comprise bending part.
4. like solution 1 described system, comprise the side inflector that extends from the sidewall of oval-shaped shell.
5. like solution 1 described system, wherein, said housing comprises oval-shaped shell.
6. like solution 1 described system, wherein, first blast air through said inlet flows to second blast air that is substantially perpendicular to through said outlet and flows to.
7. like solution 1 described system, wherein, said deflector configurations will becomes to guide said blast air through said outlet equably with the evenness index greater than about 0.85.
8. like solution 1 described system, wherein, said pollutant reduces device and comprises oxidation catalyst.
9. like solution 1 described system, wherein, said inlet is configured to receive the blast air from the turbosupercharger of explosive motor.
10. like solution 1 described system, wherein, said oval-shaped shell forms through punching press.
11. like solution 1 described system, wherein, said inflector is connected to said internal surface through hard soldering or welding procedure.
12. one kind is used to handle the method from the exhaust of explosive motor, said method comprises:
Receive blast air via the inlet in the housing from explosive motor;
Guide said blast air to form the outlet that even blast air is sent to said housing; With
Guide said even exhaust to flow to pollutant and reduce device.
13., wherein, guide said blast air to comprise: through making said blast air deflection from the vertically extending a plurality of inflectors of the internal surface of said housing like solution 12 described methods.
14. like solution 13 described methods, wherein, guide said blast air to comprise: the side inflector that extends through the sidewall from said housing makes said blast air deflection.
15., wherein, guide said blast air to comprise: to make said blast air deflection through the said a plurality of inflectors that comprise a plurality of bending parts like solution 13 described methods.
16. like solution 12 described methods, wherein, said housing comprises oval-shaped shell.
17., wherein, receive blast air and comprise like solution 12 described methods: through said inlet receive first-class to blast air, said first-class to second gas flow that is substantially perpendicular to through said outlet.
18. like solution 12 described methods, wherein, said blast air deflection is comprised: the evenness index with greater than about 0.85 guides said even blast air through said outlet.
19., wherein, guide said even blast air to comprise: to guide said even exhaust to flow to oxidation catalyst like solution 12 described methods.
20., wherein, receive blast air and comprise: receive blast air from the turbosupercharger of explosive motor like solution 12 described methods.
Through below in conjunction with the accompanying drawing detailed description of the present invention, above-mentioned feature and advantage of the present invention and other feature and advantage are conspicuous easily.
Description of drawings
In the following detailed description to embodiment, only by way of example mode presents further feature, advantage and details, detailed description, wherein:
Fig. 1 is the embodiment's of engine system a schematic representation;
Fig. 2 is the embodiment's of exhaust after treatment system a detailed cross sectional view;
Fig. 3 is the detail sections end elevation of exemplary suction casing; With
Fig. 4 is the side cross-sectional view of the suction casing shown in Fig. 3.
Embodiment
Following description only is exemplary in essence, and never intention limits invention, its application, or uses.Should be appreciated that in whole accompanying drawing corresponding reference character is represented identical or corresponding part and characteristic.
Fig. 1 is the embodiment's of engine system 100 a schematic representation.Engine system 100 comprises explosive motor 102, vent systems 104 and engine controller 106.Vent systems 104 comprises gas exhaust manifold 108, exhaust aftertreatment equipment 110 and exhaust duct 112.Cylinder 116 is arranged in the explosive motor 102, and wherein, cylinder receives the mixture of combustion air and fuel.Combustion air/fuel mixture burns, and causes the to-and-fro motion of the piston (not shown) that is arranged in the cylinder 116.The to-and-fro motion of piston makes bent axle (not shown) rotation give vehicle powertrain (not shown) or generator with transferring power or other fixing receiver (not shown) of this power under the fixation application situation of explosive motor 102.The burning of air/fuel mixture is facilitated exhaust 118 to flow through gas exhaust manifold 108 and is got into exhaust aftertreatment equipment 110; Wherein, exhaust aftertreatment equipment 110 comprises suction casing 119, first catalyst treatment device for example oxidation catalyst 120, mixer element 122 and second device for catalytic treatment 124.Before exhaust is discharged into atmosphere, 110 reduction of exhaust aftertreatment equipment, oxidation, seizure or otherwise handle the various control compositions of exhaust 118, as reduced shown in the blast air 126 of pollutant.
In addition, exhaust aftertreatment equipment 110 operationally is connected to engine controller 106 and controlled by it with fluid supply machine 125.Engine controller 106 is collected the information relevant with the running of explosive motor 102 for example temperature (gas handling system, vent systems, engine coolant, environment or the like), pressure, exhaust flow rate, NOx concentration from sensor 128a-128n; And therefore, can adjust the fluid amount of urea for example that sprays into mixer element 122.The term " controller " that this paper uses refers to processor (shared, special-purpose or group) and storage, the combinational logic circuit of ASIC (ASIC), electronic circuit, the one or more softwares of execution or firmware program and/or other suitable parts of said function is provided.In one exemplary embodiment, suction casing 119 receives diesel engine exhaust stream 118 and guides it to get into oxidation catalyst 120 and makes its compliant with emissions regulations with destroy contaminants.Uniformity and the performance that distributes with raising after-treatment system 110 when suction casing 119 improves blast air 118 inflow oxidation catalysts.
According to one exemplary embodiment of the present invention, Fig. 2 illustrates the detailed cross sectional view of exhaust after treatment system 110.After-treatment system 110 comprises suction casing 119 and rigid cartridge 204.After-treatment system 110 receives the exhaust 118 that comes from explosive motor 102, and in certain embodiments, explosive motor can comprise the super charge system (for example turbosupercharger) that forces.Blast air 126 has been described and has been eliminated the air-flow that pollutant comes out from rigid cartridge 204 afterwards.Suction casing 119 comprises inlet 210, inflector 212 and exports 214.Suction casing forms the equal uniform flow of exhaust 118 to flow into rigid cartridge 204.
In one embodiment, exhaust after treatment system 110 comprises oxidation catalyst 120, mixer element 122 and second device for catalytic treatment 124 that is supported in the rigid cartridge 204.These exemplary unit architectures become from exhaust 118 destroy contaminants.The equal uniform flow of the exhaust 118 of coming out from suction casing 119 improves the performance of each catalytic member (122,124) of exhaust after treatment system 110.For example, inflector 212 has improved exhaust from exporting 214 airflow homogeneities when flowing to the inlet surface 218 of oxidation catalyst 120.The equal uniform flow that passes surface 218 and the exhaust through oxidation catalyst 120 provides the air-flow that passes through these parts of improvement and makes and is arranged in the catalyst compounds that pollutant reduces in the device 110 and obtains more effective use.In addition; Pass the blast air of inlet surface 218 through distributing equably; Basically the entire body of DENG oxidation catalyst 120 obtains utilizing, and has improved pollutant thus and has reduced and flowing and make explosive motor 102 can satisfy Abgasgesetz wherein.
Fig. 3 is the detail sections end elevation of exemplary suction casing 119.Suction casing 119 can have inhomogeneity any suitable structure and the geometrical construction that is used for improving blast air, the ellipse shown in for example.Inflector 212 is the directed curved deflector devices of inlet stream with respect to inlet 210 and exhaust 118.As shown in the figure, inflector substantially perpendicularly extends from the internal surface 299 of the wall 300 of suction casing 119.In an embodiment, suction casing comprises the one or more inflectors 212 that extend from wall 300.In addition, sidewall 302 also substantially perpendicularly extends from wall 300, forms the outer wall of suction casing 119.In the embodiment shown, inflector 304 extends to control the air-flow in the suction casing 119 further from the internal surface 301 of sidewall 302.Inflector 212 and 304 can have any suitable shapes and the orientation of may command air-flow, for example with respect to exhaust 118 inlet stream and/or get into rigid cartridge 204 and the bent member or the straight member of the air-flow alignment of oxidation catalyst 120.According to the stream condition of expectation, inflector 212 and 304 can also be alignment or do not line up, and/or have similar or different geometric structure and/or size.Suction casing 119 is formed by any appropriate method, for example punching press or casting.Inflector 212 and 304 is formed by appropriate method, for example through arriving wall 300 with suction casing 119 punching presses or with inflector 212 and 304 welding (welding)/hard soldering (brazing).Suction casing 119 comprises the suitable durable material that can bear high temperature, for example any metal alloy (for example alloy steel or stainless steel).
Fig. 4 is the side cross-sectional view of suction casing 119.As shown in the figure, exhaust 118 flows into inlet 210 and is controlled and the change direction by inflector 212.Inflector 212 is arranged to facilitate even blast air 400 to get in the matrix that is supported on the oxidation catalyst 120 in the rigid cartridge 204 through exporting 214.In one embodiment, inflector 212 is connected to the surface through joiner 402, and this joiner can be any suitable joiner.For example, joiner 402 can comprise in order to be attached in inflector 212 in hard soldering seam, weld seam or other tackiness agent on the wall 300.Shown in Fig. 1-4, the exemplary embodiment of suction casing 119 provides the uniformity of the improvement of the blast air 118 that gets into exhaust after treatment system 110.The airflow homogeneity that improves has improved the performance of after-treatment system 110.In one embodiment, inhomogeneity about 0.80 to about 0.90 the airflow homogeneity index that is characterised in that of the improvement of the blast air 400 at outlet 214 places of suction casing 119.In other embodiments, the airflow homogeneity index is greater than about 0.90.The airflow homogeneity index is widely used in the automotive industry air-flow distributed degrees with expression matrix the place ahead, in one embodiment as give a definition:
In the formula, Φ=|| U|-U
Avg| and U
Avg=∫ U dA/A
OOther numerical value is following: the instantaneous velocity of U=regional area surface; U
AvgThe lip-deep mean velocity at=exploration airflow homogeneity index place; Absolute difference between Φ=instantaneous velocity and the mean velocity (always be on the occasion of); A
0The gross area at=exploration airflow homogeneity index place.According to above-mentioned definition, uniformity is the highest can to reach 1.0 of expression ideal distribution stream.High more evenness index (near 1.0) is normally to the sign of stream with uniform distribution more.
Though described the present invention with reference to exemplary embodiment, one skilled in the art will appreciate that under the situation that does not depart from the scope of the invention, various variations and equivalent can be made and its element can be replaced.In addition, under the situation that does not depart from essential scope of the present invention, can make a lot of modifications so that particular case or material adapt to instruction of the present invention.Therefore, intention is, the present invention is not restricted to the disclosed specific embodiment of the present invention that is used for realizing, but the present invention will comprise that all fall into the embodiment in the application's scope.
Claims (10)
1. exhaust after treatment system comprises:
Suction casing;
Inlet in the said suction casing, it is configured to receive blast air from explosive motor;
Outlet in the said suction casing, it is configured to be directed to the pollutant that is arranged in the said exhaust after treatment system to blast air and reduces device; With
Be connected to the inflector of the internal surface of said suction casing, said deflector configurations will becomes to receive from the blast air of said inlet and guides said blast air to reduce device through the said pollutant that exports to equably.
2. the system of claim 1 comprises a plurality of inflectors that extend from said internal surface perpendicular.
3. system as claimed in claim 2, wherein, said a plurality of inflectors comprise bending part.
4. the system of claim 1 comprises the side inflector that extends from the sidewall of oval-shaped shell.
5. the system of claim 1, wherein, said housing comprises oval-shaped shell.
6. the system of claim 1, wherein, first blast air through said inlet flows to second blast air that is substantially perpendicular to through said outlet and flows to.
7. the system of claim 1, wherein, said deflector configurations will becomes to guide said blast air through said outlet equably with the evenness index greater than about 0.85.
8. the system of claim 1, wherein, said pollutant reduces device and comprises oxidation catalyst.
9. the system of claim 1, wherein, said inlet is configured to receive the blast air from the turbosupercharger of explosive motor.
10. one kind is used to handle the method from the exhaust of explosive motor, and said method comprises:
Receive blast air via the inlet in the housing from explosive motor;
Guide said blast air to form the outlet that even blast air is sent to said housing; With
Guide said even exhaust to flow to pollutant and reduce device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/107,367 US20120285144A1 (en) | 2011-05-13 | 2011-05-13 | Exhaust after treatment system and method for treating exhaust |
| US13/107367 | 2011-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102777239A true CN102777239A (en) | 2012-11-14 |
Family
ID=47070737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102157906A Pending CN102777239A (en) | 2011-05-13 | 2012-05-13 | Exhaust after treatment system and method for treating exhaust |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20120285144A1 (en) |
| CN (1) | CN102777239A (en) |
| DE (1) | DE102012207827A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT514228B1 (en) * | 2013-04-15 | 2015-02-15 | Ibiden Porzellanfabrik Frauenthal Gmbh | catalyst module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009007775A1 (en) * | 2007-07-12 | 2009-01-15 | Renault Trucks | Exhaust arrangement for a vehicle exhaust line |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5693295A (en) * | 1996-01-16 | 1997-12-02 | General Motors Corporation | Catalytic converter |
| US6449947B1 (en) * | 2001-10-17 | 2002-09-17 | Fleetguard, Inc. | Low pressure injection and turbulent mixing in selective catalytic reduction system |
| JP4928304B2 (en) * | 2007-02-23 | 2012-05-09 | 日野自動車株式会社 | Exhaust purification device |
| JP4928409B2 (en) * | 2007-10-23 | 2012-05-09 | 日野自動車株式会社 | Exhaust purification device |
| JP5017065B2 (en) * | 2007-11-21 | 2012-09-05 | 日野自動車株式会社 | Exhaust purification device |
| US8079211B2 (en) * | 2008-11-06 | 2011-12-20 | Ford Global Technologies, Llc | Bypass purge for protecting against formation of reductant deposits |
| US20120124983A1 (en) * | 2010-11-23 | 2012-05-24 | Haiping Hong | Exhaust system having reductant nozzle flow diverter |
-
2011
- 2011-05-13 US US13/107,367 patent/US20120285144A1/en not_active Abandoned
-
2012
- 2012-05-10 DE DE102012207827A patent/DE102012207827A1/en not_active Withdrawn
- 2012-05-13 CN CN2012102157906A patent/CN102777239A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009007775A1 (en) * | 2007-07-12 | 2009-01-15 | Renault Trucks | Exhaust arrangement for a vehicle exhaust line |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012207827A1 (en) | 2012-11-15 |
| US20120285144A1 (en) | 2012-11-15 |
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Application publication date: 20121114 |