US20110258987A1 - Vaporizer - Google Patents

Vaporizer Download PDF

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Publication number
US20110258987A1
US20110258987A1 US13/140,264 US200913140264A US2011258987A1 US 20110258987 A1 US20110258987 A1 US 20110258987A1 US 200913140264 A US200913140264 A US 200913140264A US 2011258987 A1 US2011258987 A1 US 2011258987A1
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US
United States
Prior art keywords
recited
exhaust
exhaust duct
fuel
exhaust gas
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.)
Abandoned
Application number
US13/140,264
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English (en)
Inventor
Rolf Miebach
Stephan Schraml
Peter Broll
Dirk Schlueter
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.)
Deutz AG
Original Assignee
Deutz AG
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 Deutz AG filed Critical Deutz AG
Assigned to DEUTZ AKTIENGESELLSCHAFT reassignment DEUTZ AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHLUETER, DIRK, BROLL, PETER, MIEBACH, ROLF, SCHRAML, STEPHAN
Publication of US20110258987A1 publication Critical patent/US20110258987A1/en
Abandoned 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
    • F01N3/24—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
    • F01N3/36—Arrangements for supply of additional fuel
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • F01N2240/14—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 fuel burner
    • 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
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • 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
    • F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
    • 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 vaporizer device which works together with an exhaust pipe carrying process exhaust gas, wherein an exhaust duct of the evaporator device opens into said exhaust pipe.
  • the evaporator device has a burner comprising an injection device for fuel and air, a combustion chamber, and said exhaust duct.
  • An exhaust gas aftertreatment device is inserted into the exhaust pipe downstream of the junction with the exhaust duct.
  • the invention also relates to a method for the operation of such a vaporizer device.
  • Such a vaporizer device is known from DE 10 2004 048 336 A1.
  • the vaporizer is inserted into the exhaust system of an internal combustion engine, wherein the internal combustion engine exhaust is discharged, and undesired emissions are reduced, by means of said exhaust system.
  • a fuel feed device, an oxidative catalytic converter, and a particulate filter are arranged in the exhaust system.
  • a recirculation unit is provided which also functions as a vaporizer, which is connected to the exhaust system, and to which the fuel feed device is connected, such that the fuel is introduced into the exhaust via or through the recirculation unit.
  • air can also be supplied to the recirculation device in addition to the fuel, and the resulting mixture in the recirculation device, which works as a burner, can be ignited and burned.
  • the amount of fuel can be adjusted for the purpose of regulating the power of the burner.
  • the power of the burner must be determined in accordance with the working of the oxidative catalytic converter in such a manner that it is possible to carry out a regeneration of the particulate filter in all possible operating conditions.
  • vaporizers for an exhaust system of an internal combustion engine which directly obtain energy for the purposes of heating and vaporization from the process exhaust gas. Such vaporizers are not entirely functional in cases where process exhaust gas temperatures are low.
  • vaporizers for an exhaust system of an internal combustion engine which obtain energy for the purposes of heating and vaporization from electric heating devices. In many such cases, it is difficult or impossible, or is undesirable due to reasons of efficiency, to make the required amount of electrical energy available.
  • the present invention provides an introduction device for a vaporizable liquid is inserted into the exhaust duct of a burner.
  • the corresponding method is characterized in that the burner provides sufficient thermal energy, wherein the lower limit thereof is prespecified by the provision of an amount of energy which is sufficient for the vaporization of an amount of vaporizable liquid which is larger than the amount of vaporizable liquid introduced into the exhaust duct.
  • the configuration according to the invention is characterized in that the vaporizer device can be used for any vaporizable liquid.
  • an incombustible liquid such as an aqueous solution of urea for example, can be vaporized.
  • said fuel is preferably the same fuel which is injected by means of the supply device of the burner, for example diesel fuel.
  • One implementation of the invention has an atomizer nozzle in the opening of the introduction device in the exhaust duct, particularly a pressure atomizer nozzle or an air atomizing nozzle.
  • the vaporizable liquid is atomized simply by means of the pressure of the vaporizable liquid.
  • the introduction device can also be designed as an air atomizing nozzle.
  • the air atomizing nozzle is operated in such a manner that a vaporizable liquid is introduced into the exhaust duct with a small amount of air. If the vaporizable liquid is fuel, in cases of normal operation of an air atomizing nozzle, 20 L air/min. and 2 cm 3 /min.
  • a venturi device is arranged in the exhaust duct near an opening of the introduction device. This effects a rapid mixing of the partial streams of exhaust gas and vaporizable liquid encountering each other.
  • the burner with the combustion chamber, the exhaust duct, and the introduction device are integrated into a housing, and the housing is adapted on the exhaust duct.
  • the housing can be designed in an ideal case in such a manner that the same can be installed on the exhaust system, preferably near to the internal combustion engine in applications involving an internal combustion engine, for example directly behind the exhaust manifold or an exhaust turbo loader of the internal combustion engine.
  • the exhaust duct projects into the exhaust pipe with at least one port thereof.
  • the exhaust duct is preferably inserted concentrically into the exhaust pipe in such a manner that the port of the exhaust duct is arranged in the direction of the process exhaust gas stream, that is, for example, the internal combustion engine exhaust stream.
  • This configuration achieves an increase in the velocity of flow of the process exhaust gas, which leads to a rapid mixing of the gas mixture, the same including the burner exhaust and the vapor (vaporized liquid), and the process exhaust. In this way, ignition of the gas mixture can be prevented if the process exhaust gas contains oxygen.
  • auxiliary means can be provided which facilitate the same.
  • auxiliary means are, for example, a plate or a cone which is arranged before the port of the exhaust duct, wherein the tip of the cone is oriented facing the port of the exhaust duct.
  • This configuration also provides a narrowing of the flow area in the region of the port, in addition or as an alternative to a further increase in the flow velocity, said narrowing being provided in the form of a venturi device or a venturi nozzle, for example.
  • the configuration should quench a possible reaction between the process exhaust gas and the burner exhaust, the latter being prepared with vaporizable liquid.
  • a gas feed device opens into the exhaust duct and carries a process exhaust. In this way, process exhaust gas is fed to the burner exhaust and the vaporizable liquid.
  • the burner exhaust is cooled down in a controlled manner (where the feed is configured upstream from the opening of the feed inlet device in the direction of flow), and in such a manner that sufficient energy is provided for the purpose of vaporizing the vaporizable liquid, although the combustion of the same is prevented (if the vaporizable liquid is fuel).
  • the feed can also be configured in the region of the opening, or downstream from the opening in the direction of flow.
  • a chemical reaction between the vaporizable liquid and the burner exhaust and/or the process exhaust gas can be either facilitated or inhibited depending on requirements by means of appropriately selecting the described auxiliary means.
  • the exhaust gas aftertreatment device has a catalytic converter which selectively catalytically reduces oxides of nitrogen, and/or has an NO x storage catalytic converter, and/or an oxidative catalytic converter, and/or at least one particulate filter.
  • a catalytic converter which selectively catalytically reduces oxides of nitrogen
  • the vaporizer device can be operated with the vaporizer device according to the invention, either alone or in any possible combination thereof, as is explained in greater detail below in the context of the method for operation.
  • the scope of the invention also includes a configuration wherein the oxidative catalytic converter is a multi-purpose catalytic converter particularly containing vanadium, the same also being suitable for catalytically facilitating the selective reduction of nitrogen oxides.
  • the burner is operated in a lambda range from 0.75 to 1.75, preferably at a lambda of 1.
  • the burner is designed in such a manner that it can be operated in a power range up to 20 kW, preferably up to 15 kW, and most preferably up to 5 kW. It is one aim of the invention to operate the burner at the lower possible power, because particularly the air supply device required for the supply of (combustion-) air can then be designed with a relatively simple construction.
  • vaporizable liquid (optionally along with the direct addition of a partial volume of the process exhaust gas) is vaporized by means of the burner exhaust gas, and is directed into the exhaust aftertreatment device together with the burner exhaust gas and the entire volume of the process exhaust gas, for the purpose of inciting the intended reactions at that point.
  • NH 3 which is generated from a vaporized solution of urea effects a chemical reaction in an SCR catalytic converter wherein the nitrogen oxide and the NH 3 are converted to nitrogen and water vapor.
  • the vaporizable liquid is a combustible fuel
  • the same is fed to an oxidative catalytic converter and a downstream particulate filter via the exhaust pipe together with the burner exhaust and the process exhaust, and is oxidized in the oxidative catalytic converter and/or in a catalyst-coated particulate filter.
  • a particular advantage of this configuration is that the oxidation reaction therefore occurs only in the oxidative catalytic converter, and as a result, the temperatures required for the regeneration of the particulate filter are only generated at that point in the system.
  • a temperature of up to 650° C. is generated by the oxidation of the vaporized fuel in the oxidative catalytic converter, and the same is required for the regeneration of particulate filters.
  • different vaporizable liquids can be introduced into the exhaust duct via one or multiple introduction devices.
  • the supply of vaporizable liquid is controlled in an alternating manner via a corresponding switching device, whereas no switching device is necessary in cases where two introduction devices are included.
  • Such a case also normally includes the alternating supply of vaporizable liquid.
  • This alternating supply can be used advantageously, for example, if the oxidative catalytic converter is a multi-purpose catalytic converter particularly containing vanadium, the same also being suitable for facilitating the catalytic reduction of NO x .
  • the oxidative catalytic converter is alternatingly used for various different functions.
  • a partial volume of the total volume of combustible fuel is oxidized within the exhaust duct and/or in the place where the same is brought together with the process exhaust, releasing heat.
  • the total thermal energy provision is increased, coincident with burner performance adjusted to a minimal setting, to such a degree that the startup of a catalytic converter is ensured.
  • an oxidative catalytic converter In order to initiate the activity thereof, that is, in order to start a catalytic reaction of the introduced, vaporized fuel, an oxidative catalytic converter must achieve a prespecified minimum temperature, for example 300° C. This temperature is achieved by means of the total sum of energy from the burner and the energy generated by the combusted partial volume.
  • the oxidized partial volume of the total volume of vaporized fuel is kept at least essentially constant, independent of the total volume of vaporized fuel.
  • This embodiment also includes the discontinuation of the partial conversion of the fuel once a threshold volume of the partially converted fuel has been reached, at which point the total fuel volume is vaporized in its entirety.
  • Additional influencing variables are the location of the attachment of the opening of the introduction device, and the feed of a partial volume of process exhaust gas (for the purpose of cooling the burner exhaust and consequently the vaporizable liquid), likewise with respect to the location of said feed.
  • FIG. 1 shows a first embodiment of the vaporizer device which works together with an exhaust pipe
  • FIG. 2 shows a second embodiment of the vaporizer device which works together with an exhaust pipe
  • FIG. 3 shows a third embodiment of the vaporizer device which works together with an exhaust pipe.
  • the vaporizer device has a housing 1 , in which a burner 2 , a combustion chamber 3 , an exhaust duct 4 , and an introduction device 5 for a vaporizable liquid are integrated.
  • the housing 1 likewise in all embodiments, is connected to an exhaust pipe 6 in such a manner that the exhaust duct 4 , having a port 7 , is inserted concentrically into the exhaust pipe 6 , and the port 7 is arranged in the direction of the flow of the process exhaust gas flowing through the exhaust pipe 6 .
  • the burner 2 has a supply device 8 a for a gaseous or liquid combustible fuel, as well as a supply device 8 b for air.
  • the fuel and the air are mixed with each other in a suitable manner and introduced into the combustion chamber 3 , for example via an air atomizing nozzle 9 .
  • the mixture is then combusted in the combustion chamber 3 .
  • the combustion chamber 3 is inserted into the housing 1 and insulated as extensively as possible.
  • the combustion chamber 3 has an exhaust opening 10 through which the burner exhaust enters into the exhaust duct 4 , then flows along the exhaust duct 4 to the port 7 .
  • said burner exhaust mixes with the process exhaust gas flowing in the exhaust pipe 6 , which in the embodiment is the exhaust of an internal combustion engine.
  • the mixture of burner exhaust and air is adjusted in such a manner that the oxidation reaction is largely completed in the region of the exhaust opening 10 of the combustion chamber 3 , and as a result, a heated stream of exhaust gas flows into the exhaust duct 4 .
  • the introduction device 5 opens with an opening 11 into the exhaust duct 4 , preferably concentrically with respect to the exhaust duct 4 .
  • An atomizer nozzle 16 is arranged at the location of the opening 11 , and vaporizable liquid supplied via the introduction device 5 is finely atomized by means of the same. The vaporizable liquid introduced in this manner is consequently heated and vaporized.
  • a venturi device 12 a is inserted into the exhaust duct 4 in the region of the opening 11 .
  • the venturi device 12 a effects an additional mixing of the vaporizable liquid with the exhaust gas.
  • a quenching device 13 is arranged in the region of the port 7 , wherein said quenching device 13 is designed as a baffle plate in the embodiment and functions to mix the exhaust gases, the same flowing out of the port 7 and being mixed with the vaporized vaporizable liquid, with the process exhaust gas. At the same time, the quenching device 13 can be used to prevent ignition of the full mixture formed at this point.
  • a venturi device 12 b is installed in the exhaust pipe 6 in the region of the port 7 and/or the quenching device 13 for the purpose of increasing the flow velocity of the process exhaust gas.
  • the full mixture formed in the described manner is then fed to an exhaust gas aftertreatment device 17 , shown schematically, which has a catalytic converter 18 which catalytically reduces nitrogen oxides, and/or has an NO x storage catalytic converter, and/or an oxidative catalytic converter, and has a particulate filter 19 .
  • a catalytic converter 20 shown schematically, can also be provided in exhaust duct 4 .
  • the embodiment according to FIG. 2 differs from the embodiment according to FIG. 1 in that additionally a gas feed device 14 in the form of drilled holes arranged on the periphery of the exhaust duct 4 and opening approximately in the center of the venturi device 12 a is arranged in the region of the venturi device 12 a. A partial volume of the process exhaust gas is inserted into the exhaust duct 4 through this gas feed device 14 . In addition, no venturi device 12 b is installed in the region of the port 7 in this embodiment.
  • the embodiment according to FIG. 3 differs from the embodiment according to FIG. 2 in that here the gas feed device 14 is inserted into the exhaust duct 4 in the region which is downstream from the venturi device 12 a.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
US13/140,264 2008-12-18 2009-12-12 Vaporizer Abandoned US20110258987A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008063515A DE102008063515A1 (de) 2008-12-18 2008-12-18 Verdampfer
DE102008063515.4 2008-12-18
PCT/EP2009/008912 WO2010069528A1 (fr) 2008-12-18 2009-12-12 Evaporateur

Publications (1)

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US20110258987A1 true US20110258987A1 (en) 2011-10-27

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US13/140,264 Abandoned US20110258987A1 (en) 2008-12-18 2009-12-12 Vaporizer

Country Status (5)

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US (1) US20110258987A1 (fr)
EP (1) EP2368024B1 (fr)
DE (1) DE102008063515A1 (fr)
DK (1) DK2368024T3 (fr)
WO (1) WO2010069528A1 (fr)

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WO2014208841A1 (fr) * 2013-06-28 2014-12-31 두산엔진주식회사 Système de pyrolyse de réducteur pour appareil de réduction catalytique sélectif
US20170292422A1 (en) * 2016-04-06 2017-10-12 Ford Global Technologies, Llc Emission control system and reductant injector
WO2019203453A1 (fr) * 2018-04-18 2019-10-24 최정선 Dispositif d'alimentation en agent réducteur de système scr pour traitement d'oxyde d'azote
US10788000B2 (en) 2016-03-22 2020-09-29 Cnh Industrial America Llc System and method for aspirating a pre-cleaner of a work vehicle using a double-walled flow pipe
CN114375367A (zh) * 2019-07-15 2022-04-19 弗劳恩霍夫应用研究促进协会 用于废气后处理的设备和方法及其应用
US20220316383A1 (en) * 2019-07-15 2022-10-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Exhaust gas aftertreatment

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SE535235C2 (sv) * 2010-10-22 2012-06-05 Scania Cv Abp Arrangemang för att införa ett vätskeformigt medium i avgaser från en förbränningsmotor
DE102010062755B4 (de) * 2010-12-09 2015-05-28 Bosch Emission Systems Gmbh & Co. Kg Abgasanlage
DE102010055548A1 (de) * 2010-12-22 2012-06-28 Deutz Ag Verbrennungskraftmaschine und Verfahren zum Betreiben derselben
EP2568137B1 (fr) * 2011-09-08 2015-08-05 Ford Global Technologies, LLC Système d'injection chauffé pour systèmes de gaz d'échappement de moteurs diesel
DE102012024800A1 (de) * 2012-12-19 2014-06-26 Bombardier Transportation Gmbh Abgasrohrleitungssystem für ein Schienenfahrzeug

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US3884037A (en) * 1969-02-17 1975-05-20 Texaco Inc Internal combustion engine system for exhaust emissions control utilizing an acoustic catalytic muffler
US4033123A (en) * 1973-08-17 1977-07-05 Nissan Motor Co., Ltd. Internal combustion engine exhaust gas after-burning system
US4651524A (en) * 1984-12-24 1987-03-24 Arvin Industries, Inc. Exhaust processor
US5038562A (en) * 1988-08-19 1991-08-13 Webasto Ag Fahrgeutechnik Burner for regeneration of a particle filter device
US5829248A (en) * 1997-06-19 1998-11-03 Environmental Engineering Corp. Anti-pollution system
US7337607B2 (en) * 2003-06-12 2008-03-04 Donaldson Company, Inc. Method of dispensing fuel into transient flow of an exhaust system
US7275366B2 (en) * 2004-09-14 2007-10-02 Advanced Cleanup Technologies, Inc. High thermal efficiency Selective Catalytic Reduction (SCR) system

Cited By (14)

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Publication number Priority date Publication date Assignee Title
EP3015669B1 (fr) 2013-06-28 2018-05-02 Doosan Engine Co. Ltd. Système de pyrolyse de réducteur pour appareil de réduction catalytique sélectif
CN105339619B (zh) * 2013-06-28 2019-01-11 斗山发动机株式会社 选择性催化还原装置的还原剂热分解系统
JP2016528424A (ja) * 2013-06-28 2016-09-15 ドゥーサン エンジン カンパニー リミテッド 選択的触媒還元装置の還元剤熱分解システム
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DE102008063515A1 (de) 2010-06-24
EP2368024B1 (fr) 2015-11-11
WO2010069528A1 (fr) 2010-06-24
EP2368024A1 (fr) 2011-09-28
DK2368024T3 (en) 2016-02-01

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