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公开(公告)号：US20080118410A1
公开(公告)日：2008-05-22
申请号：US11718307
申请日：2005-10-27
CPC分类号： B01D46/50 , B01D46/0013 , B01D46/002 , B01D46/0058 , B01D46/0063 , B01D46/2407 , B01D2258/012 , B01D2259/818 , B01D2279/30 , F01N3/0892 , F01N13/011
摘要： An exhaust emission control device with a plasma generator received in a filter casing incorporated in an exhaust pipe for capturing particulates and capable of conducting electric discharge so as to generate plasma in the exhaust gas at a capturing place and with a power supply for impressing voltage on the plasma generator. The plasma generator is unitized and arranged in plurality. A control switch is provided for sequential changeover of the connection of the power supply to the plural units of the plasma generator. A processing capability comparable to a single, large-sized plasma generator is obtained while increase in size of the power supply is prevented.
摘要翻译： 一种具有等离子体发生器的废气排放控制装置，其容纳在用于捕获微粒并且能够进行放电的排气管中的过滤器壳体中，以便在捕获位置处在废气中产生等离子体，并且具有用于施加电压的电源 等离子发生器。 等离子体发生器被组合并排列成多个。 提供控制开关用于顺序地切换电源与等离子体发生器的多个单元的连接。 获得与单个大型等离子体发生器相当的处理能力，同时防止了电源的尺寸增加。
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公开(公告)号：US20070243115A1
公开(公告)日：2007-10-18
申请号：US11574072
申请日：2005-08-22
IPC分类号： F01N3/00
CPC分类号： F01N3/035 , B01D53/9431 , B01D2251/2067 , B01D2259/818 , F01N3/0814 , F01N3/206 , Y02T10/24
摘要： Excessive generation NO2 by oxidation catalyst arrangement upstream of a selective reduction catalyst is suppressed to prevent falling of NOx reduction rate. A selective reduction catalyst 4 capable of selectively reacting NOx with ammonia even in the presence of oxygen is incorporated in an exhaust pipe 3 from an engine 1. A pair of oxidation catalysts 5A and 5B are arranged in parallel with each other and upstream of the selective reduction catalyst. In an operation condition with low exhaust temperature, amounts of the exhaust gas 2 distributed to the oxidation catalysts 5A and 5B are adjusted so as to make NO/NO2 ratio in the exhaust gas 2 to about 1-1.5. In an operation condition with higher exhaust temperature where the NOx reduction rate is less affected by the NO/NO2 ratio, as a countermeasure against increasing, leaking ammonia, passage changeover is conducted to pass the exhaust gas 2 in backflow through the selective reduction catalyst 4 and the oxidation catalysts 5A and 5B, so that ammonia passing through the selective reduction catalyst 4 without reacted is oxidized in the oxidation catalysts 5A and 5B.
摘要翻译： 通过选择性还原催化剂上游的氧化催化剂配置过量产生NO 2 2被抑制，以防止NO x降低率下降。 即使在有氧的情况下也能够使NO x选择性地与氨反应的选择还原催化剂4从发动机1中引入排气管3中。 一对氧化催化剂5A和5B在选择还原催化剂的彼此并排并排配置。 在排气温度低的运转条件下，分配到氧化催化剂5A和5B的废气2的量被调整为使废气2中的NO / NO 2比率达到约 1-1.5。 在NO x NO 2比率较小的NO x NO 2还原率较小的排气温度较高的运行条件下，作为增加氨泄漏的对策，通过转换 通过选择还原催化剂4和氧化催化剂5A和BB使废气2回流通过，使得在氧化催化剂5A和5B中氧气通过选择还原催化剂4而没有反应的氨被氧化。
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公开(公告)号：US07765800B2
公开(公告)日：2010-08-03
申请号：US11574072
申请日：2005-08-22
IPC分类号： F01N3/10
CPC分类号： F01N3/035 , B01D53/9431 , B01D2251/2067 , B01D2259/818 , F01N3/0814 , F01N3/206 , Y02T10/24
摘要： Excessive generation NO2 by oxidation catalyst arrangement upstream of a selective reduction catalyst is suppressed to prevent falling of NOx reduction rate.A selective reduction catalyst 4 capable of selectively reacting NOx with ammonia even in the presence of oxygen is incorporated in an exhaust pipe 3 from an engine 1. A pair of oxidation catalysts 5A and 5B are arranged in parallel with each other and upstream of the selective reduction catalyst. In an operation condition with low exhaust temperature, amounts of the exhaust gas 2 distributed to the oxidation catalysts 5A and 5B are adjusted so as to make NO/NO2 ratio in the exhaust gas 2 to about 1-1.5. In an operation condition with higher exhaust temperature where the NOx reduction rate is less affected by the NO/NO2 ratio, as a countermeasure against increasing, leaking ammonia, passage changeover is conducted to pass the exhaust gas 2 in backflow through the selective reduction catalyst 4 and the oxidation catalysts 5A and 5B, so that ammonia passing through the selective reduction catalyst 4 without reacted is oxidized in the oxidation catalysts 5A and 5B.
摘要翻译： 通过选择还原型催化剂上游的氧化催化剂配置产生的过量的NO 2被抑制，以防止NO x还原率下降。 即使在有氧的情况下也能够选择性地使NOx与氨反应的选择还原催化剂4从发动机1引入到排气管3中。一对氧化催化剂5A和5B彼此平行配置，并且在选择性 还原催化剂。 在排气温度低的运转条件下，分配到氧化催化剂5A，5B的废气2的量被调整为使废气2中的NO / NO2比例为约1-1.5。 在NO x NO 2比率较小的NOx还原率较高的排气温度的作业条件下，作为增加氨泄漏的对策，进行通过转换使废气2回流通过选择还原催化剂4 和氧化催化剂5A和5B，使得通过选择还原催化剂4而没有反应的氨在氧化催化剂5A和5B中被氧化。
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公开(公告)号：US20070017371A1
公开(公告)日：2007-01-25
申请号：US10558705
申请日：2004-06-02
IPC分类号： B03C3/49
CPC分类号： B03C3/363 , B03C3/366 , B03C3/49 , B03C2201/30 , F01N3/01 , Y02T10/20 , Y10S55/10 , Y10S55/30 , Y10S55/38
摘要： Arranged within a cylindrical housing 1 are capturing cells 2 each including a cylindrical outer electrode 7 capable of capturing particulates and an inner electrode 6 inserted into the outer electrode and lined at its outer surface with a dielectric 5. Exhaust divergent means 3 is arrange on an end of the housing 1 so as to guide exhaust G to interiors in the respective capturing cells 2; exhaust convergence means 4 is arranged on the other end of the housing 1 so as to communicate with a gap 14 between an inner surface of the housing and outer surfaces of the outer electrodes 7 in the respective cells 2. The inner and outer electrodes 6 and 7 are connected to an electric discharge controller 15. Thus, provided is an exhaust emission control device with high removal efficiency of particulates and with easiness in maintenance.
摘要翻译： 在圆筒形壳体1内布置有捕获单元2，每个单元包括能够捕获微粒的圆柱形外部电极7和插入到外部电极中的内部电极6，并且在其外表面上用电介质5排列。 排气扩散装置3布置在壳体1的端部上，以将排气G引导到各个捕获单元2中的内部; 排气收敛装置4布置在壳体1的另一端上，以与壳体的内表面和各电池单元2中的外电极7的外表面之间的间隙14连通。 内电极6和外电极7连接到放电控制器15.因此，提供了具有高的微粒去除效率和易于维护的排气排放控制装置。
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公开(公告)号：US07497889B2
公开(公告)日：2009-03-03
申请号：US10558705
申请日：2004-06-02
CPC分类号： B03C3/363 , B03C3/366 , B03C3/49 , B03C2201/30 , F01N3/01 , Y02T10/20 , Y10S55/10 , Y10S55/30 , Y10S55/38
摘要： Arranged within a cylindrical housing are capturing cells each including a cylindrical outer electrode capable of capturing particulates and an inner electrode inserted into the outer electrode and lined at its outer surface with a dielectric. A divergent exhaust unit is arranged on an end of the housing so as to guide exhaust to interiors in the respective capturing cells. A convergent exhaust unit is arranged on the other end of the housing so as to communicate with a gap between an inner surface of the housing and outer surfaces of the outer electrodes in the respective cells. The inner and outer electrodes are connected to an electric discharge controller.
摘要翻译： 在圆柱形壳体内布置的是每个捕获单元，每个单元包括能够捕获微粒的圆柱形外部电极和插入到外部电极中的内部电极并且在其外表面上用电介质排列。 发散排气单元设置在壳体的端部上，以将排气引导到各个捕获单元内部。 收纳排气单元设置在壳体的另一端，以便与壳体的内表面和各个单元中的外电极的外表面之间的间隙连通。 内电极和外电极连接到放电控制器。
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公开(公告)号：US20060254264A1
公开(公告)日：2006-11-16
申请号：US10558738
申请日：2004-06-02
申请人： Yoshihide Takenaka , Koichi Machida
发明人： Yoshihide Takenaka , Koichi Machida
CPC分类号： F01N9/002 , B03C3/08 , B03C3/41 , B03C2201/30 , F01N3/01 , F01N3/0275 , F01N2900/1606 , Y02T10/47
摘要： An exhaust emission control device with less electricity consumption comprises a cylindrical outer electrode 7 extending in a direction of flow of exhaust G, a plurality of inner electrodes 5 and 6 constituted by electrically conductive filters capable of capturing particulates and aligned in the direction of flow of the exhaust G within an outer electrode 7, captured particulate amount estimating means 2 for estimating captured particulate amounts of the respective inner electrodes 5 and 6 and an electric discharge controller 3 for supplying electric power for generation of electric discharge to the outer electrode 7 and any of the inner electrodes 5 and 6 on the basis of calculated values of the estimating means 2.
摘要翻译： 具有较少耗电量的废气排放控制装置包括沿排气G流动方向延伸的圆柱形外电极7，由能够捕获微粒并沿流动方向排列的导电过滤器构成的多个内电极5和6 外部电极7中的排气G，用于估计各个内部电极5和6的捕获颗粒量的捕获微粒量估计装置2和用于向外部电极7提供放电产生电力的放电控制器3和任何 基于估计装置2的计算值来测量内部电极5和6。
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公开(公告)号：US07913486B2
公开(公告)日：2011-03-29
申请号：US11721057
申请日：2005-12-07
CPC分类号： B01D53/9431 , B01D53/9477 , B01D2255/91 , B01D2259/818 , F01N3/0814 , F01N3/0842 , F01N13/009 , F01N2240/28 , F01N2240/30 , F01N2260/02 , F01N2410/00 , F01N2610/03 , F01N2610/04 , F01N2610/05 , Y02T10/24
摘要： An exhaust emission control device is disclosed. The device includes an NOx-occlusion reduction catalyst incorporated in an exhaust passage for reduction and purification of NOx, a fuel reforming catalyst structure and plasma fuel reforming unit for decomposition of the fuel into H2 and CO is arranged in the exhaust passage upstream of the reduction catalyst, so that the fuel is decomposed into H2 and CO such that NOx on the surface of the NOx-occlusion reduction catalyst can be efficiently reduced into N2. Thus, high NOx reduction ratio can be always obtained irrespective of variety of operational conditions.
摘要翻译： 公开了一种废气排放控制装置。 该装置包括结合在用于还原和净化NOx的排气通道中的NOx吸收还原催化剂，用于将燃料分解成H 2和CO的燃料重整催化剂结构和等离子体燃料重整单元布置在排气通道的上游的还原 催化剂，使得燃料分解成H 2和CO，使得NOx吸留还原催化剂的表面上的NOx可以有效地还原成N2。 因此，无论各种操作条件如何，都可以始终获得高NOx还原率。
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公开(公告)号：US20090266061A1
公开(公告)日：2009-10-29
申请号：US12158705
申请日：2006-12-26
申请人： Yoshihide Takenaka
发明人： Yoshihide Takenaka
CPC分类号： F01N3/0807 , B01D53/9431 , B01D2255/91 , F01N3/0814 , F01N3/28 , F01N3/281 , F01N13/009 , F01N13/0097 , F01N2240/30 , F01N2610/03 , Y02T10/24
摘要： An exhaust emission control device is provided which can effectively regenerate a NOx absorption reduction catalyst even in a relatively low temperature region to improve NOx reduction ratio while minimizing deterioration of fuel economy.Incorporated in an exhaust pipe 4 through which exhaust gas 3 discharged from a diesel engine 1 via an exhaust manifold 2 flows is a reformer 8 having a fuel adding device 5, a heater 6 and a reforming catalyst 7. Arranged downstream of the reformer is a NOx absorption reduction catalyst 9.
摘要翻译： 本发明提供一种排气排放控制装置，即使在较低的温度区域也能够有效地再生NOx吸收还原催化剂，从而提高NOx还原率，同时将燃油经济性的劣化降至最低。 结合在通过排气歧管2从柴油发动机1排出的废气3流过的排气管4中的是具有燃料添加装置5，加热器6和重整催化剂7的重整器8.在重整器的下游配置为 NOx吸收还原催化剂9。
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公开(公告)号：US20090293454A1
公开(公告)日：2009-12-03
申请号：US11721057
申请日：2005-12-07
CPC分类号： B01D53/9431 , B01D53/9477 , B01D2255/91 , B01D2259/818 , F01N3/0814 , F01N3/0842 , F01N13/009 , F01N2240/28 , F01N2240/30 , F01N2260/02 , F01N2410/00 , F01N2610/03 , F01N2610/04 , F01N2610/05 , Y02T10/24
摘要： In an exhaust emission control device with NOx-occlusion reduction catalyst 5 incorporated in an exhaust passage 2,4 for reduction and purification of NOx, a fuel reforming catalyst structure 7 or plasma fuel reforming means 8 for decomposition of the fuel into H2 and CO is arranged in the exhaust passage 2,4 upstream of the reduction catalyst 5, so that the fuel is decomposed into and CO. By such H2 and CO, NOx on the surface of the NOx-occlusion reduction catalyst can be efficiently reduced into N2. Thus, high NOx reduction ratio can be always obtained irrespective of variety of operational conditions.
摘要翻译： 在具有NOx吸收还原催化剂5的废气排放控制装置中，其结合在用于还原和净化NOx的排气通道2,4中，用于将燃料分解成H 2和CO的燃料重整催化剂结构7或等离子体燃料重整装置8是 排放在还原催化剂5上游的排气通道2,4中，使得燃料分解成CO，通过这样的H 2和CO，可以将NOx吸留还原催化剂的表面上的NOx有效地还原成N2。 因此，无论各种操作条件如何，都可以始终获得高NOx还原率。
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