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    EXHAUST GAS TREATMENT SYSTEM
    1.
    发明公开
    EXHAUST GAS TREATMENT SYSTEM 审中-公开

    公开(公告)号：EP3408010A1

    公开(公告)日：2018-12-05

    申请号：EP16816761.7

    申请日：2016-12-13

    申请人： Scania CV AB

    发明人： RAYMAND, David

    IPC分类号： B01D53/94 ,  B01D53/96

    CPC分类号： B01D53/9477 ,  B01D53/944 ,  B01D53/96 ,  B01D2251/20 ,  B01D2255/1021 ,  B01D2255/20723 ,  B01D2255/9032 ,  B01D2257/404 ,  B01D2257/702 ,  Y02C20/10

    摘要： The invention relates to an exhaust gas treatment system (4) and a method for regenerating such an exhaust gas treatment system. The exhaust gas treatment system comprises: an oxidation catalyst assembly (10); a particulate filter (12) arranged downstream of the oxidation catalyst assembly; a reducing agent dosing device (14) arranged downstream of the particulate filter (12); and a selective catalytic reduction device (16) arranged downstream of the reducing agent dosing device (14). The oxidation catalyst assembly (10) comprises a first oxidation catalyst (18) arranged to selectively oxidise hydrocarbons present in the exhaust stream, at least partially, with substantially no concomitant oxidation of sulfur oxides present in the exhaust stream; and a second oxidation catalyst (20) arranged downstream of the first oxidation catalyst (18), arranged to oxidise hydrocarbons or partially oxidized hydrocarbons having slipped through the first oxidation catalyst (18), as well as to concomitantly oxidise NO to NO2. The system can be fuel-effectively regenerated when running on high-sulfur fuels in order to regenerate the particulate filter (12) as well as remove sulfur species deposited on the system catalysts. The invention further relates to a vehicle comprising such an exhaust gas treatment system.

    Unit capable of judging condition of reducing agent injection used in exhaust purification system
    7.
    发明公开
    Unit capable of judging condition of reducing agent injection used in exhaust purification system 有权
    用于评估所述还原剂喷射，这是在排气净化系统中使用的条件部

    公开(公告)号：EP2685059A1

    公开(公告)日：2014-01-15

    申请号：EP13188168.2

    申请日：2005-10-03

    申请人： Nissan Diesel Motor Co., Ltd.

    发明人： Hirata, Kiminobu ,  Masaki, Nobuhiko ,  Yano, Masakazu

    IPC分类号： F01N3/18 ,  B01D53/94 ,  F01N3/04 ,  F01N3/08

    CPC分类号： F01N11/00 ,  B01D53/9431 ,  B01D2251/20 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2900/0418 ,  F01N2900/08 ,  F01N2900/102 ,  F01N2900/1812 ,  F01N2900/1814 ,  F01N2900/1824 ,  Y02C20/10 ,  Y02T10/47

    摘要： An apparatus for judging a condition of injection of reducing agent in an exhaust gas purification system comprising a reduction catalyst (20) disposed in an exhaust system of an engine to reduce and purify nitrogen oxide in an exhaust gas, and a reducing agent injection supply means (28) that mixes liquid reducing agent in an amount required depending on an engine operating state with air and injection-supplies this air-mixed reducing agent into the exhaust gas flowing on an upstream side of the reduction catalyst (20), wherein there is provided such a configuration that a condition of injection of the liquid reducing agent is judged by using at least a judgment means that judges that the condition of injection of the liquid reducing agent is abnormal,when a difference between a supply indicated value (A1) of the liquid reducing agent determined based on the engine operating state and instructed to the reducing agent injection supply means (28) and an actual supply amount (A2) of the liquid reducing agent actually injection- supplied is not within a predetermined range.

    摘要翻译： 用于判断在排气净化系统中的还原剂包括还原催化剂的注入的条件的设备（20），其设置在发动机的排气系统上以减少和在排气净化氮氧化物和还原剂喷射供给装置 （28）做了混合液体还原剂在量的发动机的运转状态需要根据与空气和喷射供给该空气混合还原剂到流上的还原催化剂（20）的上游侧的排气气体worin有 提供检查的结构做了液体还原剂的喷射的条件是通过使用至少一个判决bedeutet来看，DASS判断所做的液体还原剂的喷射的状态异常时的供给指示值（A1）之间的差 确定性液体还原剂矿洞基于发动机运行状态和的指示给还原剂喷射供给装置（28）和实际供给量（A2） 液体还原剂喷射壳实际供给不在预定范围之内。

    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
    8.
    发明授权
    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号：EP2148054B1

    公开(公告)日：2012-04-25

    申请号：EP08738737.9

    申请日：2008-03-17

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： OHASHI, Nobumoto ,  HAYASHI, Atsushi ,  IIDA, Masahide ,  HAYASHI, Kotaro

    IPC分类号： F01N3/24 ,  B01D53/86 ,  B01D53/94 ,  F01N3/02 ,  F01N3/20 ,  F01N3/28 ,  F02D41/38 ,  F02D41/02

    CPC分类号： F02D41/024 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/20 ,  B01D2258/012 ,  F01N3/208 ,  F01N9/00 ,  F01N13/009 ,  F01N2550/02 ,  F02D41/028 ,  F02D41/029 ,  F02D2250/26 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

    摘要： Functions of an exhaust purification device provided in an exhaust path of an internal combustion engine is more reliably recovered. The exhaust purification device has recovery control execution means for supplying a reduction agent to a pre-catalyst to raise the temperature of an exhaust purification device, thereby executing recovery control for recovering functions of the exhaust purification device, and also has prohibition region setting means for setting a recovery control prohibition region that is an internal combustion engine operation region where the execution of the recovery control by the recovery control execution means is prohibited. The values of the maximum speed and torque of the engine for the recovery control prohibition region is set so that higher the degree of deterioration of the pre-catalyst, the greater the values.

    摘要翻译： 设置在内燃机的排气通路中的排气净化装置的功能被更可靠地回收。 该排气净化装置具有回收控制执行单元，该回收控制执行单元向还原催化剂供给还原剂，使排气净化装置的温度上升而执行用于回收排气净化装置的功能的回收控制，还具有禁止区域设定单元， 设定作为禁止恢复控制执行单元执行恢复控制的内燃机运行区域的恢复控制禁止区域。 用于回收控制禁止区域的发动机的最大速度和扭矩的值被设定为使得预催化剂的劣化程度越高，值越大。