GB2500059B - A mixer for an exhaust after-treatment system - Google Patents

A mixer for an exhaust after-treatment system

Info

Publication number
GB2500059B
GB2500059B GB1204186.9A GB201204186A GB2500059B GB 2500059 B GB2500059 B GB 2500059B GB 201204186 A GB201204186 A GB 201204186A GB 2500059 B GB2500059 B GB 2500059B
Authority
GB
United Kingdom
Prior art keywords
mixer
exhaust
treatment system
treatment
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 - Fee Related
Application number
GB1204186.9A
Other versions
GB2500059A (en
GB201204186D0 (en
Inventor
Spatafora Domenico
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Priority to GB1204186.9A priority Critical patent/GB2500059B/en
Publication of GB201204186D0 publication Critical patent/GB201204186D0/en
Publication of GB2500059A publication Critical patent/GB2500059A/en
Application granted granted Critical
Publication of GB2500059B publication Critical patent/GB2500059B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • 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
    • B01F25/4315—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
    • 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
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • 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
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
    • 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
    • B01F25/4311—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being adjustable
    • 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
    • B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F25/431972—Mounted on an axial support member, e.g. a rod or bar
    • 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
    • B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F25/431974—Support members, e.g. tubular collars, with projecting baffles fitted inside the mixing tube or adjacent to the inner wall
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • 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
    • B01F2025/93—Arrangements, nature or configuration of flow guiding elements
    • B01F2025/931—Flow guiding elements surrounding feed openings, e.g. jet nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2215/00—Auxiliary or complementary information in relation with mixing
    • B01F2215/04—Technical information in relation with mixing
    • B01F2215/0413—Numerical information
    • B01F2215/0418—Geometrical information
    • B01F2215/0431—Numerical size values, e.g. diameter of a hole or conduit, area, volume, length, width, or ratios thereof
    • 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
    • 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
    • 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
GB1204186.9A 2012-03-09 2012-03-09 A mixer for an exhaust after-treatment system Expired - Fee Related GB2500059B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1204186.9A GB2500059B (en) 2012-03-09 2012-03-09 A mixer for an exhaust after-treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1204186.9A GB2500059B (en) 2012-03-09 2012-03-09 A mixer for an exhaust after-treatment system

Publications (3)

Publication Number Publication Date
GB201204186D0 GB201204186D0 (en) 2012-04-25
GB2500059A GB2500059A (en) 2013-09-11
GB2500059B true GB2500059B (en) 2017-05-03

Family

ID=46026282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1204186.9A Expired - Fee Related GB2500059B (en) 2012-03-09 2012-03-09 A mixer for an exhaust after-treatment system

Country Status (1)

Country Link
GB (1) GB2500059B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108167051A (en) * 2017-12-23 2018-06-15 无锡威孚力达催化净化器有限责任公司 A kind of SCR aftertreatment mixers structure

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6484891B2 (en) * 2015-09-30 2019-03-20 ヤンマー株式会社 Exhaust purification equipment
US10272398B2 (en) * 2015-11-06 2019-04-30 Ford Global Technologies, Llc Static flow mixer with multiple open curved channels
US10138789B1 (en) * 2017-07-18 2018-11-27 GM Global Technology Operations LLC Exhaust gas treatment systems utilizing a plurality of reduced-resistance mixers
SE541337C2 (en) * 2017-09-14 2019-07-09 Scania Cv Ab Cyclone separator and devices comprising such a cyclone separator
EP3793708B1 (en) * 2018-05-18 2023-01-18 Donaldson Company, Inc. Precleaner arrangement for use in air filtration
CN109351184B (en) * 2018-11-30 2024-04-09 浙江大维高新技术股份有限公司 Composite mixing device, SCR denitration equipment and composite ammonia spraying mixing method
CN111561379B (en) * 2020-06-02 2021-08-03 山东交通学院 Dynamic mixer for diesel engine tail gas aftertreatment and treatment method
CN112523843B (en) * 2020-11-17 2022-03-22 江苏大学 Control device and method for actively regulating and controlling working environment of diesel engine SDPF system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416123A2 (en) * 2002-10-29 2004-05-06 Bayerische Motoren Werke Aktiengesellschaft Vortex inlet vanes
US20070051097A1 (en) * 2005-09-02 2007-03-08 Emitec Gesellschaft Fur Emissionstechnologie Mbh Method and apparatus for adding a reactant to an exhaust gas from an internal combustion engine
WO2009131666A1 (en) * 2008-04-25 2009-10-29 Tenneco Automotive Operating Company, Inc. Exhaust gas additive/treatment system and mixer for use therein
FR2950105A1 (en) * 2009-09-14 2011-03-18 Coutier Moulage Gen Ind Vortex system for creating vortex movement of air at air inlet duct of turbo compressor of heat engine of motor vehicle, has flexible blades projected into central recess of body such that blades engage in recess based on flow of air stream
JP2011106360A (en) * 2009-11-18 2011-06-02 Mitsubishi Fuso Truck & Bus Corp Urea reduction type scr device for internal combustion engine
US20110283686A1 (en) * 2010-05-19 2011-11-24 Rolf Jebasinski Mixer and exhaust system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416123A2 (en) * 2002-10-29 2004-05-06 Bayerische Motoren Werke Aktiengesellschaft Vortex inlet vanes
US20070051097A1 (en) * 2005-09-02 2007-03-08 Emitec Gesellschaft Fur Emissionstechnologie Mbh Method and apparatus for adding a reactant to an exhaust gas from an internal combustion engine
WO2009131666A1 (en) * 2008-04-25 2009-10-29 Tenneco Automotive Operating Company, Inc. Exhaust gas additive/treatment system and mixer for use therein
FR2950105A1 (en) * 2009-09-14 2011-03-18 Coutier Moulage Gen Ind Vortex system for creating vortex movement of air at air inlet duct of turbo compressor of heat engine of motor vehicle, has flexible blades projected into central recess of body such that blades engage in recess based on flow of air stream
JP2011106360A (en) * 2009-11-18 2011-06-02 Mitsubishi Fuso Truck & Bus Corp Urea reduction type scr device for internal combustion engine
US20110283686A1 (en) * 2010-05-19 2011-11-24 Rolf Jebasinski Mixer and exhaust system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108167051A (en) * 2017-12-23 2018-06-15 无锡威孚力达催化净化器有限责任公司 A kind of SCR aftertreatment mixers structure

Also Published As

Publication number Publication date
GB2500059A (en) 2013-09-11
GB201204186D0 (en) 2012-04-25

Similar Documents

Publication Publication Date Title
GB2521576B (en) Close-coupled SCR system
EP2917531A4 (en) Exhaust-gas turbocharger
EP2686532A4 (en) Emissions measuring system
EP2601413A4 (en) Exhaust system
GB2500059B (en) A mixer for an exhaust after-treatment system
EP2573345A4 (en) Scr system
GB2487747B (en) An engine system
EP2578829A4 (en) Scr system
EP2902601A4 (en) Exhaust gas denitration device
PL2838336T3 (en) Starter system for an engine
EP2860366A4 (en) Engine system
GB2497669B (en) Automotive catalytic aftertreatment system
EP2889338A4 (en) Paint for exhaust system component and exhaust system component
EP2578830A4 (en) Scr system
EP2894311A4 (en) Muffler
EP2884064A4 (en) Muffler
GB2493987B (en) An engine system
GB2504713B (en) Turbocharger by-pass system
GB201301152D0 (en) mixing device for an exhaust system of a vehicle
GB2503080B (en) An engine system
EP2835524A4 (en) System for recirculating engine exhaust gas
EP2875234A4 (en) Diagnostics for a start system
GB201223357D0 (en) Auxiliary cooling means for a dosing mocule in an exhaust treatment system
EP2735714A4 (en) Engine exhaust purification device
GB201322570D0 (en) Exhaust system for a diesel engine

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180309