WO2013005334A1 - Dispositif d'épuration de l'échappement pour moteur à combustion interne - Google Patents

Dispositif d'épuration de l'échappement pour moteur à combustion interne Download PDF

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Publication number
WO2013005334A1
WO2013005334A1 PCT/JP2011/065632 JP2011065632W WO2013005334A1 WO 2013005334 A1 WO2013005334 A1 WO 2013005334A1 JP 2011065632 W JP2011065632 W JP 2011065632W WO 2013005334 A1 WO2013005334 A1 WO 2013005334A1
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WO
WIPO (PCT)
Prior art keywords
dpf
ash
regeneration operation
temperature
control
Prior art date
Application number
PCT/JP2011/065632
Other languages
English (en)
Japanese (ja)
Inventor
中山　茂樹
優一 祖父江
寛真 西岡
大地 今井
菅原　康
佳久 塚本
克彦 押川
寛 大月
潤一 松尾
Original Assignee
トヨタ自動車株式会社
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 トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to PCT/JP2011/065632 priority Critical patent/WO2013005334A1/fr
Priority to CN201280032271.4A priority patent/CN103635245B/zh
Priority to JP2013535609A priority patent/JP5494893B2/ja
Priority to US14/110,811 priority patent/US8778053B2/en
Priority to US14/126,997 priority patent/US9057299B2/en
Priority to PCT/JP2012/067405 priority patent/WO2013005850A2/fr
Priority to CN201280031454.4A priority patent/CN103619439B/zh
Priority to US14/127,355 priority patent/US9080480B2/en
Priority to JP2013555657A priority patent/JP2014520227A/ja
Priority to EP12741114.8A priority patent/EP2726175B1/fr
Priority to EP12741116.3A priority patent/EP2726177B1/fr
Priority to CN201280031473.7A priority patent/CN103619441B/zh
Priority to EP12738240.6A priority patent/EP2726173B1/fr
Priority to US14/126,947 priority patent/US9057298B2/en
Priority to PCT/JP2012/067408 priority patent/WO2013005853A2/fr
Priority to JP2013555681A priority patent/JP5626487B2/ja
Priority to PCT/JP2012/067404 priority patent/WO2013005849A1/fr
Priority to PCT/JP2012/067407 priority patent/WO2013005852A1/fr
Priority to JP2013555656A priority patent/JP5655961B2/ja
Priority to JP2014514345A priority patent/JP2014520229A/ja
Priority to EP12741115.5A priority patent/EP2726176A2/fr
Priority to US14/126,904 priority patent/US9011569B2/en
Priority to EP12738239.8A priority patent/EP2726172B1/fr
Priority to CN201280031461.4A priority patent/CN103619440B/zh
Priority to CN201280030742.8A priority patent/CN103619438B/zh
Priority to PCT/JP2012/067406 priority patent/WO2013005851A2/fr
Publication of WO2013005334A1 publication Critical patent/WO2013005334A1/fr

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    • 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
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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
    • B01D53/9495—Controlling the catalytic process
    • 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
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/63—Platinum group metals with rare earths or actinides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/96—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00—Regeneration or reactivation of catalysts, in general
    • B01J38/02—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/104—Silver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters

Definitions

  • the present invention relates to an exhaust purification device for an internal combustion engine.
  • a diesel particulate filter (hereinafter referred to as “DPF”) is installed in the exhaust gas passage of the internal combustion engine, Generally, PM in exhaust gas is collected and removed.
  • PM regeneration since the PM collected in the DPF gradually accumulates, regeneration (hereinafter referred to as “PM regeneration”) is performed periodically or by detecting a decrease in the performance of the DPF and burning and removing the PM collected in the DPF. ”).
  • PM regeneration operation is usually performed by heating the DPF while supplying a reducing agent such as hydrocarbon (HC) to the DPF.
  • a reducing agent such as hydrocarbon (HC)
  • Ash is generated when the engine oil mixed in the cylinder of the engine burns, and the generated ash particles are covered with PM in the DPF.
  • the ash particles covered with PM are exposed to high temperature conditions during the PM regeneration operation in the DPF, and the PM covering the ash particles is burned and removed.
  • Ash deposition occurs because the ash particles are agglomerated and increased in size by further applying heat to the ash particles from which the PM has been burned and removed.
  • the improvement to the conventional DPF and the improvement to the regeneration operation of the DPF are intended to improve the collection efficiency of the DPF and improve the performance of the PM regeneration operation, and not to the accumulation of ash.
  • an invention disclosed in Patent Document 1 for example, there is an invention disclosed in Patent Document 1, and Patent Document 1 shows a configuration of a DPF capable of burning PM at a relatively low temperature. Yes.
  • the structure of the DPF disclosed in Patent Document 1 is characterized in that, in the DPF and the exhaust gas purification method using the DPF, a catalyst made of a solid superacid having an active metal supported on the DPF is held on the filter surface. is there.
  • Patent Document 1 reduces the combustion temperature of PM with a solid super strong acid carrying an active metal, and regenerates DPF at a lower temperature than before, preferably continuously, and CO, HC, NO, NO 2 can be removed at the same time.
  • Patent Document 1 is intended to improve the performance of the PM regeneration operation, and does not correspond to the accumulation of ash. If the use of the DPF is continued, the PM regeneration operation is performed. However, this does not solve the problem that the pressure loss of the DPF gradually increases, and unless the PM regeneration temperature is gradually increased, sufficient regeneration cannot be performed and the fuel consumption deteriorates.
  • Patent Document 2 which is selected from platinum, palladium and rhodium as a catalyst for a diesel engine exhaust gas purification device.
  • SOF Solid Organic Fraction
  • unburned hydrocarbons, etc. contained in particulate matter in diesel engine exhaust gas from a low temperature range.
  • the invention of Patent Document 2 aims at an effect similar to the invention of Patent Document 1 and does not relate to DPF.
  • JP 2006-289175 A Japanese Patent Laid-Open No. 10-033985
  • the present invention provides an exhaust emission control device for an internal combustion engine that suppresses ash accumulation on the DPF and can suppress an increase in pressure loss, an increase in PM regeneration temperature, and a decrease in fuel consumption over a long period of time.
  • the purpose is to efficiently suppress the accumulation of ash.
  • the present invention provides a configuration in which the ash deposited on the DPF is discharged with a reduced particle size and the DPF is regenerated (hereinafter referred to as “ash regeneration”). With this configuration, an increase in pressure loss and PM regeneration over a long period of time are provided. It is an object of the present invention to provide an epoch-making DPF capable of suppressing an increase in temperature and a reduction in fuel consumption, and further having an advantageous effect that ash can be efficiently removed.
  • the accumulated ash can be discharged with a reduced particle size.
  • a DPF that is smaller than the conventional DPF can be used from the beginning of the installation of the DPF. Not only cost reduction, but also energy cost of PM regeneration operation can be reduced.
  • the fact that a small DPF can be used means that the space for mounting the DPF on the vehicle can be reduced, and the weight of the vehicle on which the DPF is mounted can be reduced.
  • the inventor of the present application studied the problem of ash accumulation inside the DPF, analyzed the cause of ash accumulation, and the main components of ash were calcium (Ca) contained in engine oil and SOx in exhaust gas. It was found that ash is ion-bonded, CaSO 4 is the main component, and Ca salt has a high melting point, so that in the exhaust gas, ash flows into the DPF as a solid and aggregates to increase the particle size.
  • Ca calcium
  • the inventors of the present application have confirmed by experiments that the size of ash is on the order of submicrons, and that the ash slips through the DPF when the ash size is reduced to the order of nanomicrons.
  • Ca ions associated with stronger acid than SO 3 on the surface of the DPF is different from the stronger acid than SO 3 on the surface of the DPF, if a stronger acid is present in the atmosphere It was confirmed by an experiment that it binds to a stronger acid in the atmosphere, is released from the DPF, and passes through the DPF to be discharged.
  • the particle size will be submicron.
  • CaSO 4 deposited in the DPF turned into, in a reducing atmosphere becomes CaSO 3 SO 4 is reduced in CaSO 4
  • Ca ions CaSO 3 is bonded with the acid on the surface of the DPF, on the surface of the DPF Disperse in atomic form.
  • SO 4 is present in the atmosphere, the Ca on the surface of the DPF combines with the SO 4 in the atmosphere and becomes sub-nanometer-sized CaSO 4 and is released from the DPF.
  • the exhaust gas atmosphere is a stoichiometric or rich atmosphere, it is the above-described reducing atmosphere, and when it is a lean atmosphere, the lean atmosphere contains SO 4 . Therefore, if control for making the atmosphere stoichiometric or rich and control for making the lean atmosphere next are performed on the above-mentioned DPF, ash Ca ions deposited on the DPF in the stoichiometric or rich atmosphere are converted to DPF. Then, in a lean atmosphere, Ca on the surface of the DPF is combined with SO 4 in the lean atmosphere and released from the DPF, and the fine particle size is reduced to a sub-nanometer size. CaSO 4 is converted to pass through the DPF and discharged.
  • the first CaSO 4 having a large particle size of submicron and deposited on the DPF is finally released again from the DPF as CaSO 4.
  • No. 4 is reduced in size to a sub-nanometer size and passes through the DPF and is discharged.
  • the ash regeneration operation and the PM regeneration operation are performed in accordance with the ash accumulation state and the PM accumulation state, respectively.
  • the frequency of the ash regeneration operation may be less than the frequency of the PM regeneration operation.
  • the temperature of the ash regeneration operation and the temperature of the PM regeneration operation are both about 600 ° C., as shown in FIG. 5, the ash regeneration operation uses the temperature increase of the PM regeneration operation to perform PM regeneration. It is efficient to carry out following operation.
  • the temperature increase in the PM regeneration operation may be made lower than the temperature increase in the conventional PM regeneration operation.
  • PM can be burned and removed at about 300 ° C. to about 500 ° C.
  • the execution time of the ash regeneration operation and the execution time of the PM regeneration operation are related well.
  • an exhaust purification device for an internal combustion engine in which a DPF is disposed in an exhaust system of the internal combustion engine, wherein the DPF is a DPF made of a Ce-Ag catalyst, and further, the DPF is A PM having a surface coated with a solid acid, and the acid strength of the solid acid is larger than the acid strength of SO 3 and smaller than the acid strength of SO 4 , and the PM deposited in the DPF by raising the temperature of the DPF A control for increasing the temperature of the DPF, a control for increasing the temperature of the DPF, and a control for increasing the temperature of the DPF.
  • An air-fuel ratio control of the atmosphere in the DPF, and the control of the air-fuel ratio of the atmosphere in the DPF first sets the stoichiometric or air-fuel ratio rich atmosphere during the control to increase the temperature of the DPF, and then the air-fuel ratio lean Exhaust gas purification for an internal combustion engine, which is control for changing to ambient, and control for increasing the DPF temperature in the ash regeneration operation is control for further increasing the temperature from the DPF temperature in the PM regeneration operation following the PM regeneration operation
  • An apparatus is provided.
  • the DPF is a DPF made of a Ce—Ag-based catalyst, and a solid acid having an acid strength stronger than SO 3 and weaker than SO 4 is applied onto the surface of the DPF.
  • the DPF is configured by A PM regeneration operation and an ash regeneration operation are performed on the DPF configured in this manner in accordance with the PM accumulation state and the ash accumulation state, and the DPF PM regeneration operation of the Ce-Ag catalyst is performed. Since the temperature is lower than the temperature of the ash regeneration operation, when performing the ash regeneration operation, the control is performed after the PM regeneration operation, and the temperature of the DPF is further increased from the temperature of the PM regeneration operation. .
  • an ash regeneration configuration is provided, and the ash is completely removed in the ash regeneration operation, and an increase in pressure loss, an increase in PM regeneration temperature, and a decrease in fuel consumption are suppressed over a long period of time. Further, there is an effect of providing an exhaust gas purification apparatus for an internal combustion engine that can efficiently remove ash.
  • FIG. 1 is a diagram illustrating a schematic configuration of an embodiment when the present invention is applied to an exhaust gas purification apparatus for an internal combustion engine.
  • FIG. 2 is a flowchart of control when the present invention is applied to an exhaust gas purification apparatus for an internal combustion engine.
  • FIG. 3 is a diagram for explaining the back pressure of the DPF when the present invention is applied to an exhaust gas purification apparatus for an internal combustion engine.
  • FIG. 4 is a diagram illustrating a schematic configuration of an embodiment of the device arrangement when the present invention is applied to an exhaust gas purification device for an internal combustion engine.
  • FIG. 5 is a diagram for explaining a schematic configuration of the embodiment in the case where the conventional invention by the inventor of the present invention is applied to an exhaust gas purification apparatus for an internal combustion engine.
  • FIG. 4 is a diagram showing the basic arrangement of the apparatus according to the present invention.
  • the acid strength is higher than SO 3 on the surface of the DPF 2 made of Ce—Ag catalyst, specifically on the surface of the DPF substrate of DPF 2.
  • the solid acid corresponding to SO 4 or less is applied.
  • the exhaust gas from the internal combustion engine is guided to the DPF 2, and the PM in the exhaust gas is collected and removed by the DPF 2, and the exhaust gas from which the PM has been removed is discharged. Since the PM collected in the DPF gradually accumulates, PM regeneration operation is performed periodically or by detecting a decrease in the performance of the DPF and burning and removing the PM collected in the DPF.
  • the ash regeneration operation is further performed in which the ash 3 deposited in the DPF 2 is reduced in size and discharged, and when the DPF composed of a Ce-Ag-based catalyst is used as the DPF, PM Since there arises a problem that the temperature rise in the regeneration operation and the temperature of the ash regeneration operation do not coincide with each other, the present invention favorably relates the execution time of the ash regeneration operation and the execution time of the PM regeneration operation.
  • FIG. 1 is a diagram showing the relationship between the execution timing, temperature control, and atmosphere control of the PM regeneration operation and the ash regeneration operation of the present invention.
  • the ash regeneration operation is usually performed less frequently than the PM regeneration operation.
  • temperatures T 1 required for PM regeneration operation is lower than the temperature T 2 required for ash regeneration operation, T 1 is about 300 ° C. ⁇ about 500 ° C., T 2 is about 600 ° C.
  • the ash regeneration operation is subsequently performed after the PM regeneration operation at a timing when the ash regeneration operation is necessary, and further from the PM regeneration operation temperature T1 to the ash regeneration operation T2. Control the temperature to be raised.
  • the PM regeneration operation can be performed at a relatively low temperature, and the CaSO 4 having a large particle size that has been buried in the PM is exposed to a reducing atmosphere and is reduced.
  • the ash Ca ions that have become CaSO 3 can bind to the acid sites of the solid acid on the surface of the DPF, and the ash regeneration operation is performed at the temperature required for the ash regeneration operation following the PM regeneration operation. Proceed efficiently.
  • FIG. 2 is a flowchart showing temperature control in the present invention.
  • step 100 it is determined whether PM regeneration is necessary. The determination is made, for example, by detecting a decrease in DPF performance. If PM regeneration is necessary, the process proceeds to step 200 to determine whether ash regeneration is necessary.
  • FIG. 3 is a diagram for explaining the back pressure of the DPF in the present invention.
  • step 200 when it is determined in step 200 that ash regeneration is not necessary, the process proceeds to step 350, where the temperature of the DPF is increased to the temperature T 1 of the PM regeneration operation, the PM regeneration operation is performed, and the regeneration operation of the DPF is performed. Exit.
  • step 200 If it is determined in step 200 that ash regeneration is necessary, the process proceeds to step 300, the temperature of the DPF is increased to the temperature T 1 of the PM regeneration operation, the PM regeneration operation is performed, and the process proceeds to step 400. Further increasing the temperature of the DPF to a temperature T 2 of the regeneration operation, it performs ash regeneration operation to end the playback operation of the DPF.
  • the back pressure of the DPF shown in FIG. 3 changes as a curve D P1.
  • the back pressure of the DPF is the curve D P1. It changes like P2 .
  • FIG. 5 is a timing chart showing the PM regeneration operation and the ash regeneration operation, the temperature control, and the atmosphere control when the solid acid of the present invention is applied to the DPF made of the conventional material and the ash regeneration operation is performed.
  • the ash regeneration operation is efficiently performed following the PM regeneration operation by using the temperature increase of the PM regeneration operation.
  • a solid acid corresponding to an acid strength of SO 3 or more and SO 4 or less is applied on the DPF base material of the DPF comprising the Ce—Ag-based catalyst, and the atmosphere in the DPF during the ash regeneration operation
  • the air-fuel ratio of the engine is first controlled to be a stoichiometric or air-fuel ratio rich atmosphere and then changed to an air-fuel ratio lean atmosphere. After performing PM regeneration operation several times, the ash regeneration operation is performed at a timing when the ash regeneration operation is necessary.
  • a DPF smaller than the conventional one can be used from the beginning of the installation of the DPF, which not only reduces the manufacturing cost of the DPF but also reduces the energy cost of the PM regeneration operation. be able to.
  • the fact that a small DPF can be used has the effect that the space for mounting the DPF on the vehicle can be reduced, and the weight of the vehicle on which the DPF is mounted can be reduced. It should be noted.

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  • Chemical & Material Sciences (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Materials Engineering (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
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  • Sustainable Development (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un dispositif d'épuration de l'échappement pour un moteur à combustion interne équipé d'un DPF (filtre à particules diesel) comprenant un catalyseur Ce-Ag disposé dans un système d'échappement du moteur à combustion interne de sorte que l'accumulation de cendres sur le DPF peut être supprimée, les accroissements de la perte de pression et de la température de régénération des PM (particules) ainsi que la diminution du rendement en carburant peuvent être supprimés sur une longue période, et les cendres peuvent être évacuées efficacement. Une surface du DPF comprenant le catalyseur Ce-Ag est revêtue d'un acide solide ayant une acidité supérieure à l'acidité du SO3 et inférieure à l'acidité du SO4. Une commande destinée à accroître la température du DPF pour une opération de régénération des cendres comprend en outre un accroissement de la température du DPF à la suite d'une opération de régénération des PM.
PCT/JP2011/065632 2011-07-01 2011-07-01 Dispositif d'épuration de l'échappement pour moteur à combustion interne WO2013005334A1 (fr)

Priority Applications (26)

Application Number Priority Date Filing Date Title
PCT/JP2011/065632 WO2013005334A1 (fr) 2011-07-01 2011-07-01 Dispositif d'épuration de l'échappement pour moteur à combustion interne
CN201280032271.4A CN103635245B (zh) 2011-07-01 2012-06-29 颗粒过滤器
JP2013535609A JP5494893B2 (ja) 2011-07-01 2012-06-29 パティキュレートフィルタからアッシュを除去する方法
US14/110,811 US8778053B2 (en) 2011-07-01 2012-06-29 Method of removing ash from particulate filter
US14/126,997 US9057299B2 (en) 2011-07-01 2012-06-29 Exhaust purification system for internal combustion engine
PCT/JP2012/067405 WO2013005850A2 (fr) 2011-07-01 2012-06-29 Système d'épuration des gaz d'échappement d'un moteur à combustion interne
CN201280031454.4A CN103619439B (zh) 2011-07-01 2012-06-29 用于内燃机的排气净化系统
US14/127,355 US9080480B2 (en) 2011-07-01 2012-06-29 Exhaust purification system for internal combustion engine
JP2013555657A JP2014520227A (ja) 2011-07-01 2012-06-29 内燃機関の排気浄化装置
EP12741114.8A EP2726175B1 (fr) 2011-07-01 2012-06-29 Système d'épuration des gaz d'échappement d'un moteur à combustion interne
EP12741116.3A EP2726177B1 (fr) 2011-07-01 2012-06-29 Système d'épuration des gaz d'échappement d'un moteur à combustion interne
CN201280031473.7A CN103619441B (zh) 2011-07-01 2012-06-29 用于内燃机的排气净化系统
EP12738240.6A EP2726173B1 (fr) 2011-07-01 2012-06-29 Procédé pour retirer les poussières d'un filtre à particules
US14/126,947 US9057298B2 (en) 2011-07-01 2012-06-29 Exhaust purification system for internal combustion engine
PCT/JP2012/067408 WO2013005853A2 (fr) 2011-07-01 2012-06-29 Procédé pour retirer les poussières d'un filtre à particules
JP2013555681A JP5626487B2 (ja) 2011-07-01 2012-06-29 パティキュレートフィルタ
PCT/JP2012/067404 WO2013005849A1 (fr) 2011-07-01 2012-06-29 Système d'épuration des gaz d'échappement d'un moteur à combustion interne
PCT/JP2012/067407 WO2013005852A1 (fr) 2011-07-01 2012-06-29 Filtre à particules
JP2013555656A JP5655961B2 (ja) 2011-07-01 2012-06-29 内燃機関の排気浄化装置
JP2014514345A JP2014520229A (ja) 2011-07-01 2012-06-29 内燃機関の排気浄化装置
EP12741115.5A EP2726176A2 (fr) 2011-07-01 2012-06-29 Système d'épuration des gaz d'échappement d'un moteur à combustion interne
US14/126,904 US9011569B2 (en) 2011-07-01 2012-06-29 Particulate filter
EP12738239.8A EP2726172B1 (fr) 2011-07-01 2012-06-29 Filtre à particules
CN201280031461.4A CN103619440B (zh) 2011-07-01 2012-06-29 用于内燃机的排气净化系统
CN201280030742.8A CN103619438B (zh) 2011-07-01 2012-06-29 从颗粒过滤器去除灰分的方法
PCT/JP2012/067406 WO2013005851A2 (fr) 2011-07-01 2012-06-29 Système d'épuration des gaz d'échappement d'un moteur à combustion interne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/065632 WO2013005334A1 (fr) 2011-07-01 2011-07-01 Dispositif d'épuration de l'échappement pour moteur à combustion interne

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1054268A (ja) * 1996-08-08 1998-02-24 Toyota Motor Corp ディーゼル機関の排気浄化装置
JP2004513771A (ja) * 2001-05-16 2004-05-13 ケイエイチ　ケミカルズ　カンパニー、リミテッド ディーゼルエンジン排気ガスの浄化用触媒
JP2010007639A (ja) * 2008-06-30 2010-01-14 Toyota Motor Corp 内燃機関の排気浄化装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1054268A (ja) * 1996-08-08 1998-02-24 Toyota Motor Corp ディーゼル機関の排気浄化装置
JP2004513771A (ja) * 2001-05-16 2004-05-13 ケイエイチ　ケミカルズ　カンパニー、リミテッド ディーゼルエンジン排気ガスの浄化用触媒
JP2010007639A (ja) * 2008-06-30 2010-01-14 Toyota Motor Corp 内燃機関の排気浄化装置

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