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    CATALYST SUPPORTING BODY AND METHOD OF MANUFACTURING THE SAME
    24.
    发明申请
    CATALYST SUPPORTING BODY AND METHOD OF MANUFACTURING THE SAME 审中-公开
    催化剂支撑体及其制造方法

    公开(公告)号：US20140220294A1

    公开(公告)日：2014-08-07

    申请号：US14240930

    申请日：2012-07-26

    申请人： Yoshihisa Ono ,  Yasunari Hanaki ,  Shinichi Iio

    发明人： Yoshihisa Ono ,  Yasunari Hanaki ,  Shinichi Iio

    IPC分类号： B01J23/10

    CPC分类号： B01J23/10 ,  B01D53/945 ,  B01D2046/2433 ,  B01D2255/9155 ,  B01D2255/9205 ,  B01J23/002 ,  B01J23/38 ,  B01J23/63 ,  B01J35/04 ,  B01J35/1014 ,  B01J37/0036 ,  B01J37/0215 ,  B01J37/04 ,  B01J2523/00 ,  F01N2510/0684 ,  Y02T10/22 ,  Y10T428/24149 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/48

    摘要： A catalyst supporting body has a porous honeycomb base body having a porosity within a range of 40 to 60 vol. %. The body has a plurality of cells partitioned by cell walls arranged in a lattice-like shape. A coated catalyst layer made of a porous body having a void fraction of void spaces within a range of 53 to 63 vol. % is particularly supported on surfaces of the cell walls and in pores formed in the cell walls by a filling rate of not less than 40 vol. %. In an immersing step of a manufacturing method, a combination of a kind of catalyst slurry and the porous honeycomb base body is selected so that a cumulative-frequency at an intersection point between a pore distribution map and a particle size distribution map becomes not less than 80%. The pore distribution map indicates a relationship between pore sizes of pores in the porous honeycomb base body and a cumulative-frequency of the pores. The particle size distribution map indicates a relationship between particle size in the catalyst slurry and a cumulative-frequency of the particles.

    摘要翻译： 催化剂负载体具有孔隙率在40〜60体积％范围内的多孔蜂窝体基体。 ％。 身体具有由格子状形状排列的细胞壁分隔开的多个细胞。 由多孔体制成的涂层催化剂层，其空隙率为53〜63体积％。 ％的细胞壁表面和细胞壁形成的细孔的填充率不低于40体积，特别是被支撑。 ％。 在制造方法的浸渍步骤中，选择一种催化剂浆料和多孔蜂窝体基体的组合，使得孔分布图和粒度分布图之间的交点处的累积频率不小于 80％。 孔分布图表示多孔蜂窝基体的孔的孔径与孔的累积频率的关系。 粒度分布图表示催化剂浆料中的粒径与粒子的累积频率之间的关系。

    Exhaust gas purifying system
    25.
    发明授权
    Exhaust gas purifying system 失效
    废气净化系统

    公开(公告)号：US06823662B1

    公开(公告)日：2004-11-30

    申请号：US09692470

    申请日：2000-10-20

    申请人： Shinji Yamamoto ,  Hiroyuki Kanesaka ,  Hitoshi Onodera ,  Yasunari Hanaki ,  Katsuo Suga ,  Hiroshi Morita ,  Yoshiaki Hiramoto ,  Hiroaki Kaneko

    发明人： Shinji Yamamoto ,  Hiroyuki Kanesaka ,  Hitoshi Onodera ,  Yasunari Hanaki ,  Katsuo Suga ,  Hiroshi Morita ,  Yoshiaki Hiramoto ,  Hiroaki Kaneko

    IPC分类号： F01N300

    CPC分类号： B01J35/0006 ,  B01D53/8631 ,  B01D53/8696 ,  B01D53/9431 ,  B01D53/9495 ,  B01J23/58 ,  B01J23/60 ,  B01J23/63 ,  B01J37/0244 ,  B01J37/0248 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/206 ,  F01N13/009 ,  F01N2240/30 ,  F01N2330/06 ,  F01N2610/04 ,  F01N2610/08 ,  F02D41/0275

    摘要： An exhaust gas purifying system for an automotive internal combustion engine includes a NOx treating catalyst for reducing NOx disposed in an exhaust gas passageway of a combustion device, to reduce NOx in presence of reducing components in exhaust gas. Additionally, a hydrogen enriching device is disposed upstream of said NOx treating catalyst with respect to flow of exhaust gas from the combustion device and arranged to increase a ratio of hydrogen to total reducing components in at least one of combustion gas and exhaust gas so as to meet relations represented by following formulae (1) and (2), when reduction of NOx is carried out by the NOx treating catalyst: [H2/TR]d>[H2/TR]u  (1) [H2/TR]d≧0.3  (2) where [H2/TR]u is a ratio between a concentration [H2]u of hydrogen and a concentration [TR]u of total reducing components in at least one of exhaust gas in the exhaust gas passageway upstream of the hydrogen enriching device and combustion gas in a state before undergoing the hydrogen ratio increasing by said hydrogen enriching means; and [H2/TR]d is a ratio between a concentration [H2]d of hydrogen and a concentration [TR]d of total reducing components in exhaust gas in the exhaust gas passageway upstream of the NOx treating catalyst and downstream of the hydrogen enriching device.

    摘要翻译： 用于汽车内燃机的废气净化系统包括用于减少设置在燃烧装置的废气通道中的NOx的NOx处理催化剂，以在废气中的还原组分存在的情况下减少NOx。 此外，相对于来自燃烧装置的废气的流动，将氢富集装置设置在所述NOx处理催化剂的上游，并且布置成增加燃烧气体和废气中的至少一种中的氢与总还原成分的比例，以便 满足下述式（1）和（2）所示的关系：当NO x处理催化剂进行NOx的还原时：其中[H 2 / TR] u是氢的浓度[H 2] u与浓度[ 在富氢装置上游的废气通道中的废气中的至少一种中的总还原成分和燃烧气体在经历由所述氢富集装置增加的氢气比之前的状态下的TR] 并且[H 2 / TR] d是氢的浓度[H 2] d与NOx排放气体通道上游排气中的总还原成分浓度[TR] d之间的比例， 设备。

    Exhaust gas purifying system
    27.
    发明授权
    Exhaust gas purifying system 失效
    废气净化系统

    公开(公告)号：US06557342B2

    公开(公告)日：2003-05-06

    申请号：US09948876

    申请日：2001-09-10

    申请人： Katsuo Suga ,  Yasunari Hanaki ,  Maki Shimada ,  Hiroshi Akama ,  Motohisa Kamijo

    发明人： Katsuo Suga ,  Yasunari Hanaki ,  Maki Shimada ,  Hiroshi Akama ,  Motohisa Kamijo

    IPC分类号： F01N310

    CPC分类号： B01D53/9454 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/16 ,  F01N2610/04 ,  Y02A50/2324 ,  Y02T10/22

    摘要： An exhaust gas purifying system for an internal combustion engine mounted on an automotive vehicle. The exhaust gas purifying system may include an exhaust gas component concentration regulating device disposed in an exhaust gas passageway of the engine, for regulating concentrations of gas components in exhaust gas discharged from the engine such that the concentrations of carbon monoxide and hydrogen are respectively not more than 2.0% by volume and not less than 0.5 by volume and such that a volume concentration ratio of hydrogen/carbon monoxide is not smaller than 0.5, in a first exhaust gas condition in which air/fuel ratio of exhaust gas is within a range of from a rich value and a stoichiometric value. Additionally, a NOx adsorbing and reducing catalyst is disposed in the exhaust gas passageway downstream of the exhaust gas component concentration regulating device, for adsorbing nitrogen oxides in a second exhaust gas condition in which the air/fuel ratio of exhaust gas is at a lean value, and reducing the nitrogen oxides into nitrogen in the first exhaust gas condition.

    摘要翻译： 一种用于安装在机动车辆上的内燃机的废气净化系统。 排气净化系统可以包括设置在发动机的排气通道中的排气成分浓度调节装置，用于调节从发动机排出的废气中的气体成分的浓度，使得一氧化碳和氢气的浓度分别不多 在排气的空气/燃料比在排气的空气/燃料比的范围内的氢气/一氧化碳的体积浓度比不大于0.5的第一废气条件下， 从丰富的价值和化学计量的价值。 另外，在废气成分浓度调节装置的下游的废气通路内配置有NOx吸附还原催化剂，用于在废气的空气/燃料比处于稀薄值的第二废气条件下吸附氮氧化物 并且在第一废气条件下将氮氧化物还原成氮气。