GB2566907B - Dual mixer for exhaust gas aftertreatment systems - Google Patents

Dual mixer for exhaust gas aftertreatment systems Download PDF

Info

Publication number
GB2566907B
GB2566907B GB1901575.9A GB201901575A GB2566907B GB 2566907 B GB2566907 B GB 2566907B GB 201901575 A GB201901575 A GB 201901575A GB 2566907 B GB2566907 B GB 2566907B
Authority
GB
United Kingdom
Prior art keywords
exhaust gas
gas aftertreatment
aftertreatment systems
dual mixer
mixer
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.)
Active
Application number
GB1901575.9A
Other versions
GB201901575D0 (en
GB2566907A (en
Inventor
Yi Yong
Fejer-Simon Stefan
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.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
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
Priority claimed from US15/204,549 external-priority patent/US10012125B2/en
Application filed by Caterpillar Inc filed Critical Caterpillar Inc
Publication of GB201901575D0 publication Critical patent/GB201901575D0/en
Publication of GB2566907A publication Critical patent/GB2566907A/en
Application granted granted Critical
Publication of GB2566907B publication Critical patent/GB2566907B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
    • B01F33/811—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles in two or more consecutive, i.e. successive, mixing receptacles or being consecutively arranged
    • 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
    • B01F25/40—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
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
    • 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
    • B01F25/431973—Mounted on a support member extending transversally through the mixing tube
    • 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
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
GB1901575.9A 2016-07-07 2017-06-08 Dual mixer for exhaust gas aftertreatment systems Active GB2566907B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/204,549 US10012125B2 (en) 2016-05-02 2016-07-07 Dual mixer for exhaust aftertreatment systems
PCT/US2017/036499 WO2018009301A1 (en) 2016-07-07 2017-06-08 Dual mixer for exhaust gas aftertreatment systems

Publications (3)

Publication Number Publication Date
GB201901575D0 GB201901575D0 (en) 2019-03-27
GB2566907A GB2566907A (en) 2019-03-27
GB2566907B true GB2566907B (en) 2021-09-22

Family

ID=59325630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1901575.9A Active GB2566907B (en) 2016-07-07 2017-06-08 Dual mixer for exhaust gas aftertreatment systems

Country Status (5)

Country Link
CN (1) CN109414662B (en)
AU (1) AU2017292601A1 (en)
DE (1) DE112017002859T5 (en)
GB (1) GB2566907B (en)
WO (1) WO2018009301A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7310676B2 (en) * 2020-03-27 2023-07-19 いすゞ自動車株式会社 mixer
CN113145007B (en) * 2021-05-26 2023-03-10 昆明珑瑞一焰气体产品配送服务有限公司 Device for mixing and conveying natural gas and additive
FR3124092B1 (en) * 2021-06-16 2023-07-07 Liebherr Aerospace Toulouse Sas TEMPERATURE GRADIENT FLUID MIXING DEVICE AND ASSOCIATED AIR CONDITIONING SYSTEM

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605399A (en) * 1995-10-17 1997-02-25 Komax Systems, Inc. Progressive motionless mixer
EP1712751A2 (en) * 2005-04-15 2006-10-18 Iveco S.p.A. Static mixer
DE102007012790A1 (en) * 2007-03-16 2008-09-18 Audi Ag Static mixer for exhaust gas system of internal combustion engine, has carrier elements arranged around mixing axis, and flow control elements formed on carrier elements in blade-like manner, where control elements comprise slot-like notch
US20110174407A1 (en) * 2010-01-21 2011-07-21 Fluid Components International Llc Flow mixer and conditioner
US20120204541A1 (en) * 2011-02-14 2012-08-16 GM Global Technology Operations LLC Exhaust mixer element and method for mixing
US20160175784A1 (en) * 2014-12-17 2016-06-23 Caterpillar Inc. Mixing system for aftertreatment system
GB2566385A (en) * 2016-05-02 2019-03-13 Caterpillar Inc Mixer for exhaust aftertreatment systems

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006055036B4 (en) 2006-11-22 2023-03-02 Faurecia Emissions Control Technologies, Germany Gmbh Mixing element and exhaust system for an internal combustion engine
DE102006058715B3 (en) * 2006-12-13 2008-01-10 Audi Ag Static mixer for an exhaust gas unit on a vehicle operated by an internal combustion engine has flow-control elements influencing exhaust gas flow and slanted at a preset angle against a mixer surface
DE102007048558A1 (en) * 2007-10-09 2009-04-16 Audi Ag Static mixer for an exhaust system of an internal combustion engine-driven vehicle, in particular of a motor vehicle
US9429058B2 (en) * 2008-12-01 2016-08-30 GM Global Technology Operations LLC Mixing devices for selective catalytic reduction systems
CN102725056B (en) * 2009-12-18 2014-08-20 雷诺卡车公司 Mixing system for an exhaust gases after-treatment arrangement
CN201776091U (en) * 2010-08-17 2011-03-30 广西玉柴机器股份有限公司 Mixer
DE102010056314A1 (en) * 2010-12-27 2012-06-28 Friedrich Boysen Gmbh & Co. Kg Device for distributing fluids in exhaust systems
KR101340889B1 (en) * 2012-09-20 2013-12-13 부산대학교 산학협력단 Mixer for fluid mixing in the pipe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605399A (en) * 1995-10-17 1997-02-25 Komax Systems, Inc. Progressive motionless mixer
EP1712751A2 (en) * 2005-04-15 2006-10-18 Iveco S.p.A. Static mixer
DE102007012790A1 (en) * 2007-03-16 2008-09-18 Audi Ag Static mixer for exhaust gas system of internal combustion engine, has carrier elements arranged around mixing axis, and flow control elements formed on carrier elements in blade-like manner, where control elements comprise slot-like notch
US20110174407A1 (en) * 2010-01-21 2011-07-21 Fluid Components International Llc Flow mixer and conditioner
US20120204541A1 (en) * 2011-02-14 2012-08-16 GM Global Technology Operations LLC Exhaust mixer element and method for mixing
US20160175784A1 (en) * 2014-12-17 2016-06-23 Caterpillar Inc. Mixing system for aftertreatment system
GB2566385A (en) * 2016-05-02 2019-03-13 Caterpillar Inc Mixer for exhaust aftertreatment systems

Also Published As

Publication number Publication date
CN109414662A (en) 2019-03-01
GB201901575D0 (en) 2019-03-27
CN109414662B (en) 2021-09-17
DE112017002859T5 (en) 2019-02-28
AU2017292601A1 (en) 2019-02-07
WO2018009301A1 (en) 2018-01-11
GB2566907A (en) 2019-03-27

Similar Documents

Publication Publication Date Title
ZA201704022B (en) Exhaust gas purifying catalyst
EP3513873A4 (en) Exhaust gas purifying catalyst
EP3254758A4 (en) Catalyst for exhaust gas purification
EP3377220A4 (en) Exhaust gas treatment catalyst
EP3427824A4 (en) Catalyst for exhaust gas purification
EP3254757A4 (en) Exhaust gas purification catalyst
EP3207989A4 (en) Exhaust gas purification catalyst
EP3207990A4 (en) Exhaust gas purification catalyst
EP3207987A4 (en) Exhaust gas purification catalyst
ZA201704023B (en) Exhaust gas purifying catalyst
EP3254759A4 (en) Exhaust gas purification catalyst
EP3466536A4 (en) Exhaust gas purifying catalyst
EP3466541A4 (en) Exhaust gas purifying catalyst
ZA201704021B (en) Exhaust gas purifying catalyst
EP3364005A4 (en) Exhaust gas purification device for ship
EP3275545A4 (en) Exhaust gas purification catalyst
EP3434363A4 (en) Exhaust gas purifying catalyst
EP3275542A4 (en) Exhaust gas purification catalyst
EP3231511A4 (en) Exhaust gas purifying catalyst
EP3192584A4 (en) Exhaust gas purification catalyst
PL3097977T3 (en) Exhaust-gas purifying catalyst for lean-burn engine
ZA201706506B (en) Exhaust gas purification catalyst
EP3275546A4 (en) Exhaust gas purification catalyst
GB2566385B (en) Mixer for exhaust aftertreatment systems
EP3364004A4 (en) Exhaust gas purification device for ship