EP2492465A1 - Vorrichtung zum Befestigen eines Einspritzers für ein Getriebe - Google Patents

Vorrichtung zum Befestigen eines Einspritzers für ein Getriebe Download PDF

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Publication number
EP2492465A1
EP2492465A1 EP12152921A EP12152921A EP2492465A1 EP 2492465 A1 EP2492465 A1 EP 2492465A1 EP 12152921 A EP12152921 A EP 12152921A EP 12152921 A EP12152921 A EP 12152921A EP 2492465 A1 EP2492465 A1 EP 2492465A1
Authority
EP
European Patent Office
Prior art keywords
flow
exhaust
injector
wall
protective device
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.)
Withdrawn
Application number
EP12152921A
Other languages
English (en)
French (fr)
Inventor
Gautier Dekerle
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2492465A1 publication Critical patent/EP2492465A1/de
Withdrawn legal-status Critical Current

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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
    • F01N3/18—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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • 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
    • 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
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust 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
    • 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

Definitions

  • the invention relates to a device for protecting a gearbox injector in an exhaust pipe of a combustion engine, and an exhaust line comprising such a device.
  • Such an exhaust line comprising an exhaust duct, an auxiliary duct opening into the exhaust duct between an upstream portion and a downstream portion thereof, a gear injector fixed in the auxiliary duct and oriented in such a manner that generating a reductant stream in the downstream portion, an injector protection device secured in the subsidiary pipe and including a baffle wall which is adapted to prevent an exhaust gas stream from the upstream portion from entering the downstream portion; contact with the injector and which comprises an opening associated with a partition oriented so that a portion of this flow through the opening and forms in the protective device a vortex flow accompanying the downstream portion of the reducer flow, the line exhaust system also comprising a static mixer adapted to spray the drops of reductant and to homogenize them with the exhaust gases enviro nnant.
  • Such an exhaust line makes it possible to inject a reducing agent which is used for a catalytic reduction of the nitrogen oxides emitted by the combustion of a fuel by the combustion engine, to thermally protect the injection of the gas flow. exhaust (up to 600 ° C), to limit the risk of clogging of the injector, and to homogenize the reducer with the exhaust gas to improve the efficiency of the catalytic reduction.
  • the static mixer is carried by the downstream portion of the exhaust pipe and extends over the entire circumference of the latter.
  • the loss of load of such a provision is particularly important.
  • the invention aims to solve one or more of these disadvantages.
  • the invention relates to a device for protecting a gearbox injector in an exhaust line of a combustion engine, the protection device comprising a baffle wall which is adapted to prevent a flow of gas from a combustion engine. exhaust from an upstream portion of the exhaust line to contact the injector, the baffle wall including an opening which is associated with a partition oriented so that a portion of this flow passes through the opening and forms in the protective device a swirling flow accompanying the gear flow to a downstream portion of the exhaust line, characterized in that the deflecting wall carries at its downstream end a static mixer adapted to spray the drops of reducing agent and to homogenize them with the surrounding exhaust gases.
  • the mixer being carried by the baffle wall which extends substantially along the main directions of the exhaust gas flow external to the protection device and the internal flow to this device formed by the swirling flow and the gear flow ( and not carried by fasteners connecting the mixer to the wall of the exhaust pipe which extend substantially in a direction normal to the main direction of the flow of exhaust gas), the pressure losses are considerably reduced .
  • the dimensions of the mixer can be adapted to the reducer flow, and its position can be adapted to the configuration of the exhaust line to limit the pressure drops.
  • the static mixer has an annular shape. This shape optimizes the distribution of the reducer in the exhaust gas.
  • the deflecting wall has a conical shape diverging from upstream to downstream. This shape prevents the divergent flow of the gearbox from coming into contact with the wall.
  • the deflecting wall extends angularly in a sector of 120 ° minimum to 360 ° maximum.
  • the mixer is coaxial with the generator axis of the deflecting wall.
  • the deflecting wall is made of a material and is dimensioned so as to be adapted to transmit to the injector, by conduction, a thermal energy giving the latter a temperature of between 150 and 250 ° C.
  • the protection device makes it possible to limit the deterioration of the injector because of a high temperature (greater than 250 ° C.) while avoiding a fouling of the injector by maintaining it at a sufficiently high temperature (at least 150 ° C.).
  • ° C) from which the possible crystals of reducing agents which tend to accumulate melt (with regard to the urea, the melting temperature is close to 135 ° C) and are therefore driven by the suction of the vortex flow .
  • the invention relates to an exhaust line of a combustion engine, comprising a pipe an exhaust pipe, an auxiliary pipe opening into the exhaust pipe between an upstream portion and a downstream portion thereof, a gear injector fixed in the subsidiary pipe and oriented so as to generate a gear stream in the downstream portion, a protective device according to the first aspect of the present invention and attached to the subsidiary pipe, and a static mixer adapted to spray the drops of reductant and to homogenize with the surrounding exhaust gas, characterized in that the static mixer is carried by the deflecting wall.
  • the static mixer is disposed at the junction of the associated pipe with the exhaust pipe.
  • the deflecting wall extends angularly in a sector limited to the zone receiving the flow of exhaust gas from the upstream portion.
  • the injector and the protective device are coaxial.
  • the injector and the downstream portion are coaxial.
  • An exhaust line 1 of a combustion engine comprises an exhaust pipe 2.
  • the part of the exhaust pipe 2 concerned by the present invention is disposed between the engine and a catalytic device for reducing nitrogen oxides. generated by the combustion of the engine.
  • the exhaust line 1 also comprises an associated pipe 20 opening into the exhaust pipe 2 between an upstream portion 4 and a downstream portion 5 of the exhaust pipe 2.
  • the exhaust line 1 also comprises a fixing base 3 attached to the branch pipe 20 (in this case, at the bottom of this branch pipe 20).
  • the exhaust line 1 also includes a gearbox injector (not shown). This injector is fixed to the fixing base 3 and is oriented so as to generate a gear flow in the downstream portion 5. In the present examples, the injector and the downstream portion 5 are coaxial.
  • the exhaust line 1 also comprises a protection device 6 which is adapted to protect the injector and which is fixed to the fixing base 3.
  • the protection device 6 is substantially cylindrical and has a central axis 7 which is identical to the axis of the injector.
  • the attachment of the protection device 6 to the base 3 has been achieved by welding.
  • the protective device 6 comprises a deflecting wall 8 which is adapted to deflect an exhaust stream 9 from the upstream portion 4 so that the stream 9 does not come into contact with the injector.
  • the injector is protected against exhaust gas flows that would otherwise come into contact with the wall facing the upstream potion and, in part, go to the injector.
  • This protection makes it possible to avoid overheating of the injector (and thus its deterioration) by convection, the temperature of the exhaust gas being able to be greater than 600 ° C., in particular during the regeneration phases of a particulate filter disposed in the exhaust line 1.
  • the deflecting wall 8 extends angularly in a sector of 120 ° minimum to 360 ° maximum. More precisely, given its function, the deflecting wall 8 extends angularly along an angular sector which is limited to the zone receiving the flow of exhaust gas 9 coming from the upstream portion 4.
  • the deflecting wall 8 is of conical shape diverging from upstream to downstream. This makes it possible to avoid any contact with the reducer flow which is itself divergent.
  • the deflecting wall 8 comprises an opening 11 which is associated with an oriented partition 12.
  • a part 13 of the exhaust gas stream 9 coming from the upstream portion 4 passes through the opening 11 and forms in the protective device 6 a swirling flow.
  • This vortex flow flows out of the protective device 6, to the downstream portion 5 of the exhaust pipe 2, and channels the gear stream.
  • the vortex flow prevents a portion of the reducer from returning towards the injector.
  • the reducer used is urea, this makes it possible to avoid a crystallization of it at the level of the nose of the injector and don a fouling of the latter.
  • the flow rate of the vortex flow depends on the number of openings 11 and their size, as for the tangential component of the vortex flow, it depends on the orientation of the partitions 12.
  • the protective device 6 transmits thermal energy to the injector by conduction so that its temperature is between 150 and 250 ° C, a too high temperature (above 250 ° C) causing a risk of deterioration of the injector, while a temperature too low (below 150 ° C) causing a risk of crystallization of urea and thus an obstruction of the injector.
  • the control of the temperature at the injector depends, on the one hand, on the surface of the deflecting wall 8 which comes into contact with the gas flow.
  • the thickness of the deflecting wall 8 which can be all the thicker it is close to the base 3 (for example, about 4 mm at the base, and about 1 mm at its free end downstream), and secondly, the material and in particular its thermal conductivity and its heat capacity (the preferred materials being aluminum, stainless steel or cast iron).
  • the protection device 6 comprises, at the downstream end of the deflector wall 8, a static mixer 14.
  • This static mixer 14 is adapted to spray the drops of reducer so as to reduce their dimensions and to facilitate, thereby their homogenization with the surrounding exhaust gas.
  • the static mixer 14 comprises a series of fins 15 which allow this spraying. As illustrated in Figures 3 and 4 the static mixer 14 is annular. In addition, in order to improve the integration of the flow leaving the protective device 6 (the reducer flow and the vortex flow of the exhaust gas) to the flow of the gases deflected by the deflecting wall, the mixer 14 is coaxial with the generator axis of the deflecting wall 8 (which here is also coaxial with the downstream portion 5).
  • the mixer being carried by the deflecting wall and not by the exhaust pipe, the pressure losses are considerably reduced.
  • the deflector wall 8 and the mixer 14 which is the extension thereof extend mainly in the main direction of movement of the stream exhaust gas which has been deflected by the deflector wall 8 and the flow disposed on the other side of this wall 8 (swirling flow and reducer flow), which causes only a small deviation of these flows, unlike the fasteners of the prior art which connect the mixer to the wall of the exhaust pipe and which extend substantially in a direction normal to this direction of travel.
  • the dimensions of the mixer 14 can be adapted to the reducer flow, and its position can be adapted to the configuration of the exhaust line in order to limit the pressure losses. It is thus possible to arrange the mixer 14 at the junction of the associated pipe 20 with the exhaust pipe 2.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
EP12152921A 2011-02-25 2012-01-27 Vorrichtung zum Befestigen eines Einspritzers für ein Getriebe Withdrawn EP2492465A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1151524A FR2972021B1 (fr) 2011-02-25 2011-02-25 Dispositif de protection d'un injecteur de reducteur

Publications (1)

Publication Number Publication Date
EP2492465A1 true EP2492465A1 (de) 2012-08-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12152921A Withdrawn EP2492465A1 (de) 2011-02-25 2012-01-27 Vorrichtung zum Befestigen eines Einspritzers für ein Getriebe

Country Status (2)

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EP (1) EP2492465A1 (de)
FR (1) FR2972021B1 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664081B2 (en) 2007-07-24 2017-05-30 Faurecia Emissions Control Technologies, Germany Gmbh Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine
US9714598B2 (en) 2015-04-30 2017-07-25 Faurecia Emissions Control Technologies, Usa, Llc Mixer with integrated doser cone
US9719397B2 (en) 2015-04-30 2017-08-01 Faurecia Emissions Control Technologies Usa, Llc Mixer with integrated doser cone
US9726064B2 (en) 2015-04-30 2017-08-08 Faurecia Emissions Control Technologies, Usa, Llc Mixer for use in a vehicle exhaust system
US9828897B2 (en) 2015-04-30 2017-11-28 Faurecia Emissions Control Technologies Usa, Llc Mixer for a vehicle exhaust system
US9995193B2 (en) 2013-07-25 2018-06-12 Faurecia Emissions Control Technologies Usa, Llc Mixer with swirl box for a vehicle exhaust system
US10227907B2 (en) 2014-06-03 2019-03-12 Faurecia Emissions Control Technologies, Usa, Llc Mixer and doser cone assembly
US10287948B1 (en) 2018-04-23 2019-05-14 Faurecia Emissions Control Technologies, Usa, Llc High efficiency mixer for vehicle exhaust system
US10316721B1 (en) 2018-04-23 2019-06-11 Faurecia Emissions Control Technologies, Usa, Llc High efficiency mixer for vehicle exhaust system
CN111472867A (zh) * 2019-01-24 2020-07-31 埃贝斯佩歇排气技术有限公司 混合器
US10787946B2 (en) 2018-09-19 2020-09-29 Faurecia Emissions Control Technologies, Usa, Llc Heated dosing mixer
US10920635B2 (en) 2019-04-23 2021-02-16 Faurecia Emissions Control Technologies, Usa, Llc Exhaust gas aftertreatment system with a reducing agent mixer having an injector tip protector
US10933387B2 (en) 2016-10-21 2021-03-02 Faurecia Emissions Control Technologies, Usa, Llc Reducing agent mixer
EP4402353A1 (de) * 2021-09-16 2024-07-24 Proventia Oy Strömungsvorrichtung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018124025A1 (de) * 2018-09-28 2020-04-02 Man Truck & Bus Se Vorrichtung zum Zumischen eines flüssigen Reduktionsmittels zum Abgas einer Brennkraftmaschine und Kraftfahrzeug
DE102019109983A1 (de) * 2019-04-16 2020-10-22 Eberspächer Exhaust Technology GmbH & Co. KG Mischer
CN112922706B (zh) * 2021-04-06 2021-09-28 宜兴市锦龙陶瓷有限公司 一种薄壁柴油机尾气净化用蜂窝陶瓷烧结装置及其使用方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0555746A1 (de) * 1992-02-10 1993-08-18 Man Nutzfahrzeuge Ag Vorrichtung zur katalytischen NOX-Reduktion
EP1314864A1 (de) * 2001-11-27 2003-05-28 Toyota Jidosha Kabushiki Kaisha Einspritzventil für eine Abgasreinigungsvorrichtung
GB2416718A (en) * 2004-07-29 2006-02-08 Eminox Ltd Gas treatment apparatus
DE102007034316A1 (de) * 2007-07-24 2009-01-29 Emcon Technologies Germany (Augsburg) Gmbh Baugruppe sowie Verfahren zur Einbringung eines Reduktionsmittels in die Abgasleitung einer Abgasanlage einer Verbrennungskraftmaschine
DE102008008564A1 (de) * 2008-02-08 2009-08-13 Robert Bosch Gmbh Dosiervorrichtung zur Schadstoffverminderung in Abgasen
US20100005790A1 (en) * 2008-07-09 2010-01-14 Xiaogang Zhang Selective Catalytic Reduction (SCR) Catalyst Injection Systems
US20100021292A1 (en) 2006-09-25 2010-01-28 Dresser-Rand Company Fluid deflector for fluid separator devices

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0555746A1 (de) * 1992-02-10 1993-08-18 Man Nutzfahrzeuge Ag Vorrichtung zur katalytischen NOX-Reduktion
EP1314864A1 (de) * 2001-11-27 2003-05-28 Toyota Jidosha Kabushiki Kaisha Einspritzventil für eine Abgasreinigungsvorrichtung
GB2416718A (en) * 2004-07-29 2006-02-08 Eminox Ltd Gas treatment apparatus
US20100021292A1 (en) 2006-09-25 2010-01-28 Dresser-Rand Company Fluid deflector for fluid separator devices
DE102007034316A1 (de) * 2007-07-24 2009-01-29 Emcon Technologies Germany (Augsburg) Gmbh Baugruppe sowie Verfahren zur Einbringung eines Reduktionsmittels in die Abgasleitung einer Abgasanlage einer Verbrennungskraftmaschine
DE102008008564A1 (de) * 2008-02-08 2009-08-13 Robert Bosch Gmbh Dosiervorrichtung zur Schadstoffverminderung in Abgasen
US20100005790A1 (en) * 2008-07-09 2010-01-14 Xiaogang Zhang Selective Catalytic Reduction (SCR) Catalyst Injection Systems

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664081B2 (en) 2007-07-24 2017-05-30 Faurecia Emissions Control Technologies, Germany Gmbh Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine
US9995193B2 (en) 2013-07-25 2018-06-12 Faurecia Emissions Control Technologies Usa, Llc Mixer with swirl box for a vehicle exhaust system
US10294843B2 (en) 2014-06-03 2019-05-21 Faurecia Emissions Control Technologies, Usa, Llc Mixer and doser cone assembly
US10227907B2 (en) 2014-06-03 2019-03-12 Faurecia Emissions Control Technologies, Usa, Llc Mixer and doser cone assembly
US9828897B2 (en) 2015-04-30 2017-11-28 Faurecia Emissions Control Technologies Usa, Llc Mixer for a vehicle exhaust system
US9726064B2 (en) 2015-04-30 2017-08-08 Faurecia Emissions Control Technologies, Usa, Llc Mixer for use in a vehicle exhaust system
US9719397B2 (en) 2015-04-30 2017-08-01 Faurecia Emissions Control Technologies Usa, Llc Mixer with integrated doser cone
US9714598B2 (en) 2015-04-30 2017-07-25 Faurecia Emissions Control Technologies, Usa, Llc Mixer with integrated doser cone
US10933387B2 (en) 2016-10-21 2021-03-02 Faurecia Emissions Control Technologies, Usa, Llc Reducing agent mixer
US10287948B1 (en) 2018-04-23 2019-05-14 Faurecia Emissions Control Technologies, Usa, Llc High efficiency mixer for vehicle exhaust system
US10316721B1 (en) 2018-04-23 2019-06-11 Faurecia Emissions Control Technologies, Usa, Llc High efficiency mixer for vehicle exhaust system
US10787946B2 (en) 2018-09-19 2020-09-29 Faurecia Emissions Control Technologies, Usa, Llc Heated dosing mixer
CN111472867A (zh) * 2019-01-24 2020-07-31 埃贝斯佩歇排气技术有限公司 混合器
CN111472867B (zh) * 2019-01-24 2022-04-26 普瑞姆有限公司 混合器
US10920635B2 (en) 2019-04-23 2021-02-16 Faurecia Emissions Control Technologies, Usa, Llc Exhaust gas aftertreatment system with a reducing agent mixer having an injector tip protector
EP4402353A1 (de) * 2021-09-16 2024-07-24 Proventia Oy Strömungsvorrichtung

Also Published As

Publication number Publication date
FR2972021B1 (fr) 2013-03-15
FR2972021A1 (fr) 2012-08-31

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