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    METHOD FOR CLEANING INTERNAL COMBUSTION ENGINE EXHAUST GASES
    4.
    发明申请
    METHOD FOR CLEANING INTERNAL COMBUSTION ENGINE EXHAUST GASES 有权
    清洁内燃机排气的方法

    公开(公告)号：US20110094207A1

    公开(公告)日：2011-04-28

    申请号：US12913218

    申请日：2010-10-27

    申请人： Anke Woerz ,  Wilfried Mueller ,  Martin Votsmeier ,  Franz Dornhaus ,  Martin Roesch

    发明人： Anke Woerz ,  Wilfried Mueller ,  Martin Votsmeier ,  Franz Dornhaus ,  Martin Roesch

    IPC分类号： F01N3/18 ,  F01N3/24

    CPC分类号： F01N3/035 ,  B01D53/945 ,  B01D2255/9155 ,  F01N3/0814 ,  F01N2430/06 ,  F01N2510/06 ,  F01N2510/0682 ,  Y02T10/22

    摘要： Described is a method for cleaning the exhaust gases of internal combustion engines, which method is suitable for reducing harmful gases and particle emissions. Here, the exhaust gas to be cleaned is conducted, under operating conditions, with a discontinuous profile of the air ratio λ across a wall-flow filter substrate which comprises a catalytically active coating containing one storage material. The storage material is suitable for temporarily storing one or more exhaust-gas components under certain operating conditions and releasing said exhaust-gas components again in a targeted fashion in the event of a suitable change in the operating conditions. The coating is configured such that the component has a gradient of the storage material concentration and/or of the total coating amount, with the highest concentration of the storage material in the longitudinal direction of the component being present on the inflow side. At least 60% by weight of the storage material in relation to its total amount is present in the walls between inflow and outflow ducts, and at least 50% by weight of the storage material in relation to its total amount is present in a first, inflow-side zone in the wall-flow filter substrate.

    摘要翻译： 描述了一种清洁内燃机废气的方法，该方法适用于减少有害气体和颗粒排放。 这里，在操作条件下，通过包含含有一种储存材料的催化活性涂层的壁流式过滤器基材的空气比λ的不连续轮廓进行待清洁废气。 储存材料适合于在某些操作条件下暂时存储一种或多种废气组分，并且在操作条件适当改变的情况下以目标方式再次释放所述废气组分。 涂层被构造成使得组分具有存储材料浓度和/或总涂布量的梯度，存储材料在组件的纵向方向上的最高浓度存在于流入侧。 存储材料相对于其总量的至少60重量％存在于流入和流出管道之间的壁中，相对于其总量，存储材料的至少50重量％存在于第一， 壁流式过滤器基板中的流入侧区域。

    Single layer high performance catalyst
    8.
    发明授权
    Single layer high performance catalyst 有权
    单层高性能催化剂

    公开(公告)号：US06524992B2

    公开(公告)日：2003-02-25

    申请号：US09818998

    申请日：2001-03-28

    申请人： Lothar Mussmann ,  Dieter Lindner ,  Martin Votsmeier ,  Egbert Lox ,  Thomas Kreuzer

    发明人： Lothar Mussmann ,  Dieter Lindner ,  Martin Votsmeier ,  Egbert Lox ,  Thomas Kreuzer

    IPC分类号： B01J2310

    CPC分类号： B01D53/945 ,  B01J23/42 ,  B01J23/464 ,  B01J23/63 ,  B01J37/0248 ,  Y02T10/22

    摘要： A single layer high performance catalyst containing on an inert carrier body a catalytic coating comprising platinum, rhodium and various oxide materials. The catalyst contains a catalytic coating having at least one first support material selected from the group having a first active alumina, a ceria rich ceria/zirconia mixed oxide and a zirconia component, said at least one first support material being catalyzed with a first part of the total platinum amount of the catalyst, and a second support material catalyzed with the second part of the total platinum amount and with rhodium said second support material being a second active alumina.

    摘要翻译： 在惰性载体上含有铂，铑和各种氧化物材料的催化涂层的单层高性能催化剂。 该催化剂含有具有至少一种选自具有第一活性氧化铝，富铈二氧化铈/氧化锆混合氧化物和氧化锆组分的第一载体材料的催化涂层，所述至少一种第一载体材料被第一部分催化 催化剂的总铂量，以及以总铂量的第二部分催化的第二载体材料，并且所述第二载体材料为第二活性氧化铝。

    Method for verifying the aging condition of a catalytic converter on board a vehicle
    10.
    发明授权
    Method for verifying the aging condition of a catalytic converter on board a vehicle 有权
    用于验证车辆上的催化转化器的老化状况的方法

    公开(公告)号：US08276438B2

    公开(公告)日：2012-10-02

    申请号：US12675341

    申请日：2008-08-29

    申请人： Martin Votsmeier ,  Juergen Gieshoff ,  Thomas Kreuzer

    发明人： Martin Votsmeier ,  Juergen Gieshoff ,  Thomas Kreuzer

    IPC分类号： G01M15/10

    CPC分类号： F01N11/002 ,  F01N11/005 ,  F01N2550/02 ,  Y02T10/47

    摘要： The invention describes a method for determining the light-off temperature of a catalytic converter on board a vehicle. The aging condition of the catalytic converter is determined by means of the method. To test the catalytic converter, the latter is loaded for example with a CO/HC test pulse. During the combustion of the additional CO and HC on the catalytic converter, an axial temperature profile is generated. The position of the maximum of said temperature profile along the catalytic converter is dependent on the current light-off temperature. The temperature profile travels through the catalytic converter and can be measured at the outlet of the catalytic converter as a time-dependent profile. The original axial temperature profile can be inferred from the time-dependent profile. Using a calculation program, the current light-off temperature of the catalytic converter on the vehicle can be determined. The method has the advantage that the test can take place at exhaust-gas temperatures considerably higher than the light-off temperature. In this way, it is ensured that the test pulse does not lead to increased pollutant emissions.

    摘要翻译： 本发明描述了一种用于确定车辆上的催化转化器的关闭温度的方法。 通过该方法确定催化转化器的老化条件。 为了测试催化转化器，后者例如用CO / HC测试脉冲加载。 在催化转化器附加CO和HC的燃烧过程中，产生轴向温度分布。 沿着催化转化器的最大温度曲线的位置取决于当前的关闭温度。 温度曲线通过催化转化器，并且可以在催化转化器的出口处测量为时间依赖的曲线。 原始轴向温度曲线可以从时间依赖曲线推断。 使用计算程序，可以确定车辆上的催化转化器的当前关闭温度。 该方法具有的优点是，该测试可以在远低于起燃温度的废气温度下进行。 这样就可以确保测试脉冲不会导致污染物排放增加。