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WO2005073530A1 - Systeme de controle des gaz polluants d’un moteur - Google Patents

Systeme de controle des gaz polluants d’un moteur Download PDF

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Publication number
WO2005073530A1
WO2005073530A1 PCT/JP2005/001532 JP2005001532W WO2005073530A1 WO 2005073530 A1 WO2005073530 A1 WO 2005073530A1 JP 2005001532 W JP2005001532 W JP 2005001532W WO 2005073530 A1 WO2005073530 A1 WO 2005073530A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust
engine
catalyst
exhaust gas
reducing agent
Prior art date
Application number
PCT/JP2005/001532
Other languages
English (en)
Japanese (ja)
Inventor
Kiminobu Hirata
Nobuhiko Masaki
Hisashi Akagawa
Original Assignee
Nissan Diesel Motor Co., Ltd.
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 Nissan Diesel Motor Co., Ltd. filed Critical Nissan Diesel Motor Co., Ltd.
Publication of WO2005073530A1 publication Critical patent/WO2005073530A1/fr

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
    • 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
    • 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
    • F01N3/18—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
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
    • 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
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
    • F01N2340/06—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the arrangement of the exhaust apparatus relative to the turbine of a turbocharger
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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

Definitions

  • the present invention relates to an engine exhaust purification device (hereinafter referred to as "exhaust exhaust device”) for reducing and purifying nitrogen oxides (NOx) in exhaust using a liquid reducing agent.
  • exhaust exhaust device for reducing and purifying nitrogen oxides (NOx) in exhaust using a liquid reducing agent.
  • the present invention relates to a technique for promoting diffusion and mixing of a liquid reducing agent.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2000-27627
  • a powerful exhaust gas purification device injects and supplies a required amount of liquid reducing agent according to the engine operating state to an exhaust gas upstream of a reduction catalyst provided in an engine exhaust system, thereby providing a high level of exhaust gas.
  • NOx is subjected to a catalytic reduction reaction with a liquid reducing agent to purify NOx into harmless components.
  • the reduction reaction uses ammonia having a good reactivity with NOx.
  • the liquid reducing agent an aqueous urea solution that generates ammonia by hydrolysis with exhaust heat and steam in the exhaust gas is used.
  • an oxidation catalyst that oxidizes nitrogen monoxide (NO) to nitrogen dioxide (NO) in the exhaust system of the begging engine that improves the NOx purification rate of the reduction catalyst
  • a technique has been developed in which an injection nozzle for injecting and supplying a liquid reducing agent and a reduction catalyst are arranged in this order, respectively, and the ratio of NO to NO in exhaust gas is improved by an oxidation catalyst.
  • Patent Document 1 JP-A-2000-27627
  • An object of the present invention is to provide an exhaust gas purifying apparatus that promotes diffusion and mixing of a liquid reducing agent by ensuring a sufficient distance.
  • an oxidation catalyst for oxidizing nitrogen monoxide to nitrogen dioxide and a liquid reducing agent are injected and supplied to the engine exhaust system in the exhaust gas flow direction according to the operating state of the engine.
  • an exhaust gas purifying apparatus for an engine each of which is provided with an injection nozzle for performing a reduction and a reduction catalyst for reducing and purifying nitrogen oxides using a liquid reducing agent
  • an exhaust gas in which the oxidation catalyst is fixed to the engine is provided.
  • the reduction catalyst is arranged in the exhaust system fixed to the chassis while being arranged in the system.
  • the injection nozzle can be disposed in an exhaust system fixed to the chassis or the engine.
  • a turbocharger turbine that collects exhaust energy and supercharges intake air may be disposed in an exhaust system upstream of the reduction catalyst, that is, an exhaust system fixed to a chassis or an engine.
  • the oxidation catalyst is formed by a thin coat of a catalyst component on a honeycomb-type catalyst carrier in which a large number of cells formed along the exhaust gas flow direction have thin walls. Is desirable. In this way, even if the oxidation catalyst is miniaturized, the emission of the catalyst carrier is reduced. The gas flow passage area is sufficiently secured, the pressure loss can be suppressed as much as possible, and the cost can be reduced because the amount of the catalyst component is small. At this time, there is a concern that the oxidation catalyst may be reduced in size due to downsizing of the oxidation catalyst and reduction of the catalyst components. However, since the oxidation catalyst is disposed in the exhaust system fixed to the engine, the exhaust gas passing therethrough is exhausted. In addition to a sufficiently high temperature, a reduction in the amount of heat released from the peripheral wall due to the downsizing of the oxidation catalyst makes it possible to secure oxidation performance equivalent to that of the conventional configuration.
  • the oxidation catalyst is provided in the exhaust system fixed to the engine, it is possible to move the injection nozzle to the upstream of the exhaust gas. The distance between can be increased. As a result, sufficient time is allowed for the liquid reducing agent injected and supplied from the injection nozzle to diffuse and mix in the exhaust gas until the liquid reducing agent reaches the reduction catalyst, thereby promoting the diffusion and mixing of the liquid reducing agent. can do. Further, since the diffusion and mixing of the liquid reducing agent are promoted, the precipitation of the reducing agent component in the injection nozzle and the exhaust system located downstream of the exhaust nozzle can also be suppressed. At this time, if the exhaust gas of the engine is directly introduced into the oxidation catalyst, the oxidation catalyst can easily exhibit its oxidation ability easily at a temperature higher than the activation temperature.
  • FIG. 1 is a configuration diagram showing a first embodiment of an exhaust gas purification apparatus according to the present invention.
  • FIG. 2 is a configuration diagram showing a second embodiment of the exhaust gas purification apparatus according to the present invention.
  • FIG. 3 is a configuration diagram showing a third embodiment of the exhaust gas purification apparatus according to the present invention.
  • FIG. 4 is a configuration diagram showing a fourth embodiment of the exhaust gas purification apparatus according to the present invention.
  • FIG. 5 is a configuration diagram showing a fifth embodiment of the exhaust gas purification apparatus according to the present invention. Explanation of symbols
  • FIG. 1 shows the configuration of an exhaust gas purifying apparatus according to a first embodiment of the present invention.
  • An exhaust pipe 14 connected to an exhaust manifold 12 of the engine 10 includes at least a turbocharger bin 16 for collecting exhaust energy and supercharging intake air along an exhaust flow direction, An oxidation catalyst 18 that oxidizes NO to NO, and a liquid
  • An injection nozzle 20 for injecting and supplying a body reducing agent and a NOx reduction catalyst 22 for reducing and purifying NOx using a liquid reducing agent are provided respectively. More specifically, the turbine 16 and the oxidation catalyst 18 are respectively disposed in an upstream exhaust pipe 14A fixed to the engine 10 and the exhaust manifold 12, while the injection nozzle 20 and the NOx reduction catalyst 22 are mounted on a chassis (not shown). Each is fixed to the fixed downstream exhaust pipe 14B. The upstream exhaust pipe 14A and the downstream exhaust pipe 14B are connected to each other via a flexible tube 14C that absorbs the relative movement between the engine 10 and the chassis, thereby forming an exhaust system.
  • At least one of the turbine 16 and the oxidation catalyst 18 be directly supported by the engine 10 via a bracket.
  • Reference numeral 24 in the drawing denotes a reducing agent oxidation catalyst that oxidizes and purifies the liquid reducing agent that has passed through the NOx reduction catalyst 22.
  • the oxidation catalyst 18 since the oxidation catalyst 18 is provided in the engine room, it is desirable to reduce the size while minimizing the pressure loss due to the increase in exhaust resistance. For this reason, the oxidation catalyst 18 has a structure in which a large number of cells formed along the exhaust gas flow direction have a thin-walled honeycomb-type catalyst carrier, and a thin layer of a noble metal such as platinum as a catalyst component is wash-coated with a thin layer. Use something. In this way, despite the size reduction, the exhaust gas flow area in the catalyst carrier is sufficiently ensured, the pressure loss can be suppressed as much as possible, and the cost can be reduced because the catalyst component can be reduced. Can be done.
  • the oxidation capacity may be reduced due to the downsizing of the medium 18 and the reduction of the catalyst components.However, since the oxidation catalyst 18 is provided in the engine room, the temperature of the exhaust passing therethrough is sufficiently high. The reduction in the amount of heat radiated from the peripheral wall due to the downsizing of the oxidation catalyst 18 makes it possible to ensure the same oxidation performance as in the conventional configuration.
  • the oxidation catalyst 18 is disposed in the engine room, so that the injection nozzle 20 can be moved upstream of the exhaust gas. The distance between them can be lengthened. For this reason, a sufficient time for the liquid reducing agent injected and supplied from the injection nozzle 20 to diffuse and mix in the exhaust gas until the liquid reducing agent reaches the NOx reduction catalyst 22 can be secured, and the diffusion and mixing of the liquid reducing agent can be performed. Can be promoted. Further, since the diffusion and mixing of the liquid reducing agent are promoted, the precipitation of the reducing agent component in the injection nozzle 20 and the downstream exhaust pipe 14B located downstream of the exhaust nozzle can be suppressed.
  • FIG. 2 shows a configuration of an exhaust gas purification apparatus according to a second embodiment of the present invention. Note that the following embodiments have the same basic configuration as the first embodiment, and therefore, the same components will be denoted by the same reference characters and description thereof will be omitted.
  • a configuration is adopted in which the oxidation catalyst 18 and the turbine 16 are arranged in this order along the exhaust gas flow direction in the upstream exhaust pipe 14A.
  • the exhaust gas from the exhaust manifold 12 is directly introduced into the oxidation catalyst 18, so that the oxidation catalyst 18 can sufficiently exhibit its oxidizing ability so that the catalyst components easily reach the activation temperature or higher.
  • Note that other operations and effects are the same as those of the first embodiment, and a description thereof will be omitted (the same applies hereinafter).
  • FIG. 3 shows a configuration of a third embodiment of the exhaust gas purification apparatus according to the present invention.
  • An exhaust pipe 14 connected to an exhaust manifold 12 of the engine 10 has at least an oxidation catalyst 18, an injection nozzle 20, a turbine 16, a NOx reduction catalyst 22, , Respectively.
  • the oxidation catalyst 18 is provided in the upstream exhaust pipe 14A, while the injection nozzle 20, the turbine 16 and the NOx reduction catalyst 22 are provided in the downstream exhaust pipe 14B.
  • FIG. 4 shows the configuration of a fourth embodiment of the exhaust gas purification apparatus according to the present invention.
  • the oxidation catalyst 18, the injection nozzle 20, and the turbine 16 are provided in the upstream exhaust pipe 14A along the exhaust gas flow direction, while the downstream exhaust pipe 14B is provided.
  • a configuration in which a NOx reduction catalyst 22 is provided is adopted. This makes it possible to maximize the distance between the injection nozzle 20 and the NOx reduction catalyst 22 as much as possible while sufficiently exhibiting the oxidation ability of the oxidation catalyst 18 as in the second embodiment. The time required for the liquid reducing agent injected and supplied from to diffuse and mix can be maximized.
  • FIG. 5 shows the configuration of a fifth embodiment of the exhaust gas purification apparatus according to the present invention.
  • the present invention exerts its functions and effects even in a configuration in which the turbine 16 is not provided in the exhaust system. It goes without saying that the exhaust system power turbine 16 in the first to third embodiments may be removed.
  • the oxidation catalyst 18 By disposing the NOx reduction catalyst 22 in the downstream exhaust pipe 14B while disposing the NOx reduction catalyst 22 in the upstream exhaust pipe 14A, the distance between the injection nozzle 20 and the NOx reduction catalyst 22 can be increased. Therefore, the time required for the liquid reducing agent injected and supplied from the injection nozzle 20 to reach the NOx reduction catalyst 22 becomes longer, and sufficient time for the liquid reducing agent to diffuse and mix is secured. By effectively utilizing the liquid reducing agent, NOx in exhaust gas can be purified. Further, since there is no need to inject and supply the liquid reducing agent more than necessary, it is also possible to suppress the deposition of the reducing agent component in the injection nozzle 20 and the downstream exhaust pipe 14B located downstream of the exhaust nozzle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)
  • Supercharger (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

Un système de contrôle des gaz polluants d’un moteur comprenant, disposés respectivement dans un système d’échappement de moteur dans le sens du débit d’échappement, au moins un catalyseur d’oxydation permettant d’oxyder le monoxyde d’azote en dioxyde d’azote, une buse d’injection permettant d’injecter et d’envoyer un agent réducteur liquide selon une condition de fonctionnement du moteur, et un catalyseur de réduction permettant de réduire et de purifier les oxydes d’azote en utilisant l’agent réducteur liquide, dans lequel, dans la mesure où le catalyseur d’oxydation est disposé dans un système d’échappement fixé au moteur et le catalyseur de réduction est disposé dans un système d’échappement fixé au châssis pour ainsi allonger la distance entre la buse d’injection et le catalyseur de réduction, une durée suffisante est garantie pour diffuser et mélanger un agent réducteur liquide, injecté et envoyé depuis le buse d’injection, dans/avec l’échappement jusqu’à ce qu’il atteigne le catalyseur de réduction pour ainsi faciliter la diffusion et le mélange de l’agent réducteur liquide.
PCT/JP2005/001532 2004-02-02 2005-02-02 Systeme de controle des gaz polluants d’un moteur WO2005073530A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-025753 2004-02-02
JP2004025753A JP4290026B2 (ja) 2004-02-02 2004-02-02 排気浄化装置

Publications (1)

Publication Number Publication Date
WO2005073530A1 true WO2005073530A1 (fr) 2005-08-11

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WO (1) WO2005073530A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2916250A1 (fr) * 2007-05-14 2008-11-21 Renault Sas Raccord d'un turbocompresseur avec un catalyseur d'oxydation d'une ligne d'echappement d'un moteur a combustion interne
WO2009014035A1 (fr) * 2007-07-20 2009-01-29 Toyota Jidosha Kabushiki Kaisha Système de purification des gaz d'échappement pour moteur à combustion interne
FR2925936A1 (fr) * 2008-01-02 2009-07-03 Peugeot Citroen Automobiles Sa Circuit de gaz d'echappement d'un moteur a combustion interne
GB2462798A (en) * 2008-06-03 2010-02-24 Johnson Matthey Plc Emission control

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5166848B2 (ja) * 2007-12-17 2013-03-21 三菱ふそうトラック・バス株式会社 排気浄化装置
FR2970297B1 (fr) * 2011-01-07 2015-04-24 Peugeot Citroen Automobiles Sa Ligne d'echappement equipant un moteur thermique d'un vehicule automobile et methode d'epuration des gaz d'echappement
JP6108847B2 (ja) * 2013-01-28 2017-04-05 ヤンマー株式会社 発電システム
JP6162519B2 (ja) * 2013-07-23 2017-07-12 ヤンマー株式会社 トラクタ
WO2015012169A1 (fr) * 2013-07-23 2015-01-29 ヤンマー株式会社 Engin de chantier
KR101795402B1 (ko) * 2016-04-29 2017-11-08 현대자동차 주식회사 배기 시스템
GB201610407D0 (en) * 2016-06-15 2016-07-27 Jaguar Land Rover Ltd Vehicle Exhaust system
KR101846906B1 (ko) * 2016-09-02 2018-04-09 현대자동차 주식회사 배기 가스 정화 시스템
CN111617635A (zh) * 2020-06-16 2020-09-04 浙江天地环保科技股份有限公司 一种新型的脱硝还原剂直喷混合装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932009U (fr) * 1972-06-29 1974-03-20
JPH0430220U (fr) * 1990-07-05 1992-03-11
JPH05195756A (ja) * 1992-01-21 1993-08-03 Hino Motors Ltd エンジンの排ガス浄化装置
JPH05256130A (ja) * 1992-03-12 1993-10-05 Mazda Motor Corp エンジンの排気系配設構造
JP2002371835A (ja) * 2001-06-15 2002-12-26 Komatsu Ltd 内燃機関の排気ガス浄化装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932009U (fr) * 1972-06-29 1974-03-20
JPH0430220U (fr) * 1990-07-05 1992-03-11
JPH05195756A (ja) * 1992-01-21 1993-08-03 Hino Motors Ltd エンジンの排ガス浄化装置
JPH05256130A (ja) * 1992-03-12 1993-10-05 Mazda Motor Corp エンジンの排気系配設構造
JP2002371835A (ja) * 2001-06-15 2002-12-26 Komatsu Ltd 内燃機関の排気ガス浄化装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2916250A1 (fr) * 2007-05-14 2008-11-21 Renault Sas Raccord d'un turbocompresseur avec un catalyseur d'oxydation d'une ligne d'echappement d'un moteur a combustion interne
WO2008145886A1 (fr) * 2007-05-14 2008-12-04 Renault S.A.S. Raccord d'un turbocompresseur avec un catalyseur d'oxydation d'une ligne d'echappement d'un moteur a combustion interne
US8584450B2 (en) 2007-05-14 2013-11-19 Renault S.A.S. Coupling of a turbocharger with an oxidation catalyst of an exhaust line of an internal combustion engine
WO2009014035A1 (fr) * 2007-07-20 2009-01-29 Toyota Jidosha Kabushiki Kaisha Système de purification des gaz d'échappement pour moteur à combustion interne
FR2925936A1 (fr) * 2008-01-02 2009-07-03 Peugeot Citroen Automobiles Sa Circuit de gaz d'echappement d'un moteur a combustion interne
EP2077377A1 (fr) * 2008-01-02 2009-07-08 Peugeot Citroën Automobiles S.A. Circuit de gaz d'échappement d'un moteur à combustion interne
GB2462798A (en) * 2008-06-03 2010-02-24 Johnson Matthey Plc Emission control

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Publication number Publication date
JP2005214170A (ja) 2005-08-11
JP4290026B2 (ja) 2009-07-01

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