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    Catalyst Component of a Motor Vehicle Exhaust Gas Cleaning System and Use of a Catalyst Component
    2.
    发明申请
    Catalyst Component of a Motor Vehicle Exhaust Gas Cleaning System and Use of a Catalyst Component 有权
    汽车尾气净化系统的催化剂组分和催化剂组分的使用

    公开(公告)号：US20150071839A1

    公开(公告)日：2015-03-12

    申请号：US14385649

    申请日：2013-01-29

    申请人： Daimler AG

    发明人： Alexander Massner ,  Inderpal Singh ,  Frank Zimmermann

    IPC分类号： B01D53/94

    CPC分类号： B01D53/94 ,  B01D53/945 ,  B01D53/9472 ,  B01D2255/102 ,  B01D2255/9035 ,  B01J21/04 ,  B01J21/066 ,  B01J23/40 ,  B01J29/072 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0246 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2510/0682 ,  Y02A50/2324 ,  Y02A50/2325 ,  Y02T10/22 ,  Y02T10/24

    摘要： A motor vehicle emission control system includes a three zone catalytic converter component having a honeycomb support body with catalytically active coating having a precious metal content applied on the channel walls. The first coating zone extends in the longitudinal direction from the inlet-side end to a first coating boundary and has a first precious metal content. The second coating zone extends in the longitudinal direction from the first coating boundary to a second coating boundary situated downstream from the first coating boundary and has a second precious metal content that is lower than the first precious metal content. The third coating zone extends from the second coating boundary to the outlet-side end and has a third precious metal content that is lower than the second precious metal content. The coating has oxidation catalyst activity and is free of rhodium.

    摘要翻译： 机动车辆排放物控制系统包括三区催化转化器组件，其具有蜂窝状支撑体，其具有涂覆在通道壁上的贵金属含量的催化活性涂层。 第一涂层区域在纵向方向上从入口侧端部延伸到第一涂覆边界并且具有第一贵金属含量。 第二涂层区域在纵向方向上从第一涂层边界延伸到位于第一涂层边界下游的第二涂层边界，并且具有低于第一贵金属含量的第二贵金属含量。 第三涂层区域从第二涂层边界延伸到出口侧端部并且具有低于第二贵金属含量的第三贵金属含量。 涂层具有氧化催化剂活性，不含铑。

    Exhaust gas after-treatment unit for an internal combustion engine
    6.
    发明授权
    Exhaust gas after-treatment unit for an internal combustion engine 有权

    公开(公告)号：US10287939B2

    公开(公告)日：2019-05-14

    申请号：US16064813

    申请日：2016-12-12

    申请人： Daimler AG

    发明人： Johannes Bleckmann ,  Claudia Essmann ,  Uwe Gaertner ,  Alexander Massner ,  Michael Stiller

    IPC分类号： F01N3/035 ,  F01N3/20 ,  F01N3/10 ,  F01N13/00 ,  B01D46/00 ,  F01N3/023 ,  B01D53/94

    摘要： An exhaust gas after-treatment unit includes a first catalytic converter, a particle filter arranged downstream of the first catalytic converter, and a second catalytic converter arranged downstream of the particle filter and which is a selective catalytic reduction (SCR) catalytic converter. The first catalytic converter is a combination catalytic converter including a first catalytic converter part which is an SCR catalytic converter, a second catalytic converter part arranged downstream of the first catalytic converter part which is an ammonia slip catalytic converter and has a noble metal layer with a first noble metal content, a third catalytic converter part arranged downstream of the second catalytic converter part which is an oxidation catalytic converter and has a noble metal layer with a second noble metal content, and an SCR layer arranged on the noble metal layers and extending over the entire length of the second and third catalytic converter parts.