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    METHOD FOR CLEANING INTERNAL COMBUSTION ENGINE EXHAUST GASES
    22.
    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。

    Method for cleaning internal combustion engine exhaust gases
    23.
    发明授权
    Method for cleaning internal combustion engine exhaust gases 有权
    内燃机排气净化方法

    公开(公告)号：US08397488B2

    公开(公告)日：2013-03-19

    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： F01N3/00

    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。