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    Diesel particle filter with improved back pressure characteristics
    1.
    发明授权
    Diesel particle filter with improved back pressure characteristics 有权
    柴油颗粒过滤器具有改进的背压特性

    公开(公告)号：US09051857B2

    公开(公告)日：2015-06-09

    申请号：US13127326

    申请日：2009-09-11

    申请人： Franz Dornhaus ,  Stéphanie Frantz ,  Gerald Jeske

    发明人： Franz Dornhaus ,  Stéphanie Frantz ,  Gerald Jeske

    IPC分类号： B01D53/94 ,  B01D53/92 ,  F01N3/022 ,  C04B35/195 ,  C04B35/478 ,  C04B35/565 ,  C04B38/00 ,  C04B111/00

    CPC分类号： F01N3/0222 ,  B01D2279/30 ,  C04B35/195 ,  C04B35/478 ,  C04B35/565 ,  C04B38/0009 ,  C04B2111/00793 ,  C04B2111/0081 ,  F01N2510/00 ,  F01N2510/10 ,  Y02T10/20 ,  C04B38/0054 ,  C04B38/0074

    摘要： Proposed is a diesel particle filter which comprises a ceramic wall-flow filter substrate and a coating applied in the inflow ducts, which coating is composed of material with a high melting point. The coating (6) is provided such that, by means of said coating, pores (5), which connect the inflow ducts (1) and outflow ducts (2), in the wall (4) are closed off for the soot particles (7) at the inflow side without said coating thereby preventing the passage of the gaseous exhaust-gas constituents. The coating may be produced from one or more oxides with a high melting point or from fibrous material with a high melting point. In both cases, the coating has the effect that the depth filtration is considerably reduced, and therefore the back pressure increase encountered during the depth filtration phase is significantly reduced.

    摘要翻译： 提出了一种柴油颗粒过滤器，其包括陶瓷壁流过滤器基材和施加在流入管道中的涂层，该涂层由具有高熔点的材料构成。 提供涂层（6），使得通过所述涂层，将在壁（4）中连接流入管道（1）和流出管道（2）的孔（5）关闭用于烟灰颗粒（ 7）在没有所述涂层的流入侧，从而防止气体废气组分的通过。 涂层可以由一种或多种具有高熔点的氧化物或具有高熔点的纤维材料制备。 在这两种情况下，涂层具有深度过滤显着降低的效果，因此在深度过滤阶段遇到的背压增加显着降低。

    Method for cleaning internal combustion engine exhaust gases
    2.
    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。

    REDUCTION-CATALYST-COATED DIESEL PARTICLE FILTER HAVING IMPROVED CHARACTERISTICS
    3.
    发明申请
    REDUCTION-CATALYST-COATED DIESEL PARTICLE FILTER HAVING IMPROVED CHARACTERISTICS 有权
    具有改进特性的减少催化涂层的柴油颗粒过滤器

    公开(公告)号：US20130004391A1

    公开(公告)日：2013-01-03

    申请号：US13583516

    申请日：2011-03-30

    申请人： Marcus Pfeifer ,  Stephan Basso ,  Franz Dornhaus

    发明人： Marcus Pfeifer ,  Stephan Basso ,  Franz Dornhaus

    IPC分类号： B01D53/94

    CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D53/9468 ,  B01D2251/2062 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/20776 ,  B01D2255/50 ,  B01D2255/9155 ,  B01D2255/9205 ,  B01D2257/404 ,  B01D2258/012 ,  F01N3/0222 ,  F01N3/035 ,  F01N2250/02 ,  F01N2510/06 ,  Y02T10/24

    摘要： A diesel particle filter which comprises a ceramic wall flow filter substrate and two coatings is described. The first coating which is applied in the inflow channels and is composed of high-melting materials has such a nature that it closes the inflow channels and pores in the wall connecting the inflow channels and outflow channels to soot particles on the inflow side without preventing passage of the gaseous exhaust gas constituents. The second coating is introduced into the wall between inflow channels and outflow channels and is of such a nature that it can effectively catalyze the selective reduction of nitrogen oxides by means of a reducing agent. The resulting component is an SCR-catalytically active particle filter and displays excellent banking-up pressure properties combined with high filtration efficiency and good regeneration properties. Furthermore, the component displays good aging stability of the NOx conversion activity.

    摘要翻译： 描述了包括陶瓷壁流过滤器基底和两个涂层的柴油颗粒过滤器。 在流入通道中施加并且由高熔点材料构成的第一涂层具有这样的性质，即将流入通道和流出通道连接到流入侧的烟灰颗粒的壁中的流入通道和孔隙封闭，而不阻止通道 的气体废气成分。 第二涂层被引入流入通道和流出通道之间的壁中，并且具有这样的性质，即它可以有效地催化通过还原剂选择性还原氮氧化物。 所得组分是SCR催化活性颗粒过滤器，显示出优异的沉积压力特性以及高过滤效率和良好的再生性能。 此外，该组分显示出良好的NOx转化活性的老化稳定性。

    METHOD FOR CLEANING INTERNAL COMBUSTION ENGINE EXHAUST GASES
    6.
    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。

    DIESEL PARTICLE FILTER WITH IMPROVED BACK PRESSURE CHARACTERISTICS
    10.
    发明申请
    DIESEL PARTICLE FILTER WITH IMPROVED BACK PRESSURE CHARACTERISTICS 有权
    柴油颗粒过滤器具有改进的背压特性

    公开(公告)号：US20120014842A1

    公开(公告)日：2012-01-19

    申请号：US13127326

    申请日：2009-09-11

    申请人： Franz Dornhaus ,  Stéphanie Frantz ,  Gerald Jeske

    发明人： Franz Dornhaus ,  Stéphanie Frantz ,  Gerald Jeske

    IPC分类号： B01D53/94 ,  B01D46/00 ,  B01D39/20

    CPC分类号： F01N3/0222 ,  B01D2279/30 ,  C04B35/195 ,  C04B35/478 ,  C04B35/565 ,  C04B38/0009 ,  C04B2111/00793 ,  C04B2111/0081 ,  F01N2510/00 ,  F01N2510/10 ,  Y02T10/20 ,  C04B38/0054 ,  C04B38/0074

    摘要： Proposed is a diesel particle filter which comprises a ceramic wall-flow filter substrate and a coating applied in the inflow ducts, which coating is composed of material with a high melting point. The coating (6) is provided such that, by means of said coating, pores (5), which connect the inflow ducts (1) and outflow ducts (2), in the wall (4) are closed off for the soot particles (7) at the inflow side without said coating thereby preventing the passage of the gaseous exhaust-gas constituents. The coating may be produced from one or more oxides with a high melting point or from fibrous material with a high melting point. In both cases, the coating has the effect that the depth filtration is considerably reduced, and therefore the back pressure increase encountered during the depth filtration phase is significantly reduced.

    摘要翻译： 提出了一种柴油颗粒过滤器，其包括陶瓷壁流过滤器基材和施加在流入管道中的涂层，该涂层由具有高熔点的材料构成。 提供涂层（6），使得通过所述涂层，将在壁（4）中连接流入管道（1）和流出管道（2）的孔（5）关闭用于烟灰颗粒（ 7）在没有所述涂层的流入侧，从而防止气体废气组分的通过。 涂层可以由一种或多种具有高熔点的氧化物或具有高熔点的纤维材料制备。 在这两种情况下，涂层具有深度过滤显着降低的效果，因此在深度过滤阶段遇到的背压增加显着降低。