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1.发明授权公开(公告)号：US07735312B2
公开(公告)日：2010-06-15
申请号：US10589424
申请日：2005-02-04
IPC分类号： F01N3/00
CPC分类号： F01N11/005 , B01D53/9495 , F01N3/0871 , F01N3/0885 , F01N2430/06 , F01N2550/03 , Y02T10/20 , Y02T10/47
摘要： When a nitrogen oxide storage catalyst is being regenerated, the regeneration may be terminated for example as a result of a premature load change in the engine, which can lead to incomplete emptying of the storage catalyst. The residual filling level which remains in the catalyst following an incomplete regeneration of this nature is used as the starting value for calculation of the filling level during the next storage phase. After incomplete regeneration, the nitrogen oxide conversion rate is initially greater than would be expected, on account of the residual filling level. By taking this increased conversion rate into account when calculating the filling level during the storage phase, it is possible to further improve the accuracy of the calculation.
摘要翻译： 当再生氮氧化物储存催化剂时，例如由于发动机过早的负荷变化的结果，再生可能终止，这可导致储存催化剂的不完全排空。 在这种性质的不完全再生之后残留在催化剂中的残余填充量被用作在下一个储存阶段期间计算填充量的起始值。 在不完全再生之后，氮氧化物转化率最初大于预期的，因为残留的填充量。 通过在存储阶段计算填充水平时考虑到提高的转换率，可以进一步提高计算的准确性。
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2.发明申请公开(公告)号：US20100307136A1
公开(公告)日：2010-12-09
申请号：US12815484
申请日：2010-06-15
IPC分类号： F01N11/00
CPC分类号： F01N11/005 , B01D53/9495 , F01N3/0871 , F01N3/0885 , F01N2430/06 , F01N2550/03 , Y02T10/20 , Y02T10/47
摘要： When a nitrogen oxide storage catalyst is being regenerated, the regeneration may be terminated for example as a result of a premature load change in the engine, which can lead to incomplete emptying of the storage catalyst. The residual filling level which remains in the catalyst following an incomplete regeneration of this nature is used as the starting value for calculation of the filling level during the next storage phase. After incomplete regeneration, the nitrogen oxide conversion rate is initially greater than would be expected, on account of the residual filling level. By taking this increased conversion rate into account when calculating the filling level during the storage phase, it is possible to further improve the accuracy of the calculation.
摘要翻译： 当再生氮氧化物储存催化剂时，例如由于发动机过早的负荷变化的结果，再生可能终止，这可导致储存催化剂的不完全排空。 在这种性质的不完全再生之后残留在催化剂中的残余填充量被用作在下一个储存阶段期间计算填充量的起始值。 在不完全再生之后，氮氧化物转化率最初大于预期的，因为残留的填充量。 通过在存储阶段计算填充水平时考虑到提高的转换率，可以进一步提高计算的准确性。
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3.发明申请公开(公告)号：US20090297415A1
公开(公告)日：2009-12-03
申请号：US12090936
申请日：2006-10-19
IPC分类号： B01D53/86
CPC分类号： F01N3/0871 , Y02T10/20
摘要： A nitrogen oxide storage catalytic converter which is operated for a relatively long time at low exhaust-gas temperatures in the range between 120 and 250° C. exhibits a decreasing storage capacity as a result of incomplete regeneration at said temperatures. In order to re-establish the original storage capacity of the catalytic converter which is operated in this way, two-stage regeneration is proposed, wherein the storage catalytic converter is initially partially regenerated at the low exhaust gas temperature by means of a switch from the lean mode to the rich mode, and wherein subsequently, with rich exhaust gas again, the exhaust-gas temperature of the engine is raised into a range of between 300 and 400° C. for complete regeneration.
摘要翻译： 在120-250℃的低废气温度下操作较长时间的氮氧化物储存催化转化器，由于在所述温度下的不完全再生，表现出降低的储存能力。 为了重新建立以这种方式运行的催化转化器的原始储存能力，提出了两级再生，其中储存催化转化器最初在低废气温度下部分地通过从 稀模式到富模式，并且随后再次具有浓排气，发动机的排气温度升高到300-400℃之间，以完全再生。
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4.发明申请Nitrogen oxide storage material and nitrogen oxide storage catalyst produced therefrom 审中-公开氮氧化物储存材料和由其制备的氮氧化物储存催化剂公开(公告)号：US20090062117A1
公开(公告)日：2009-03-05
申请号：US10593986
申请日：2005-03-23
申请人： Juliane Kluge , Ulrich Goebel , Meike Wittrock , Markus Kogel , Thomas Kreuzer
发明人： Juliane Kluge , Ulrich Goebel , Meike Wittrock , Markus Kogel , Thomas Kreuzer
CPC分类号： B01D53/9422 , B01D2255/102 , B01D2255/202 , B01D2255/204 , B01D2255/2063 , B01D2255/2065 , B01D2255/2066 , B01D2255/2068 , B01D2255/91 , B01J21/10 , B01J23/02 , B01J23/10 , B01J23/63 , B01J37/0205 , B01J37/0207 , B01J37/0248
摘要： A nitrogen oxide storage material which is based on storage compounds of elements selected from the group consisting of magnesium, calcium, strontium, barium, the alkali metals, the rare earth metals and mixtures thereof and has a homogeneous magnesium-aluminium mixed oxide doped with cerium oxide as support material for the storage compounds is described. Nitrogen oxide storage catalysts using this storage material display a broad working range, a high storage efficiency and good ageing resistance.
摘要翻译： 一种氮氧化物储存材料，其基于选自镁，钙，锶，钡，碱金属，稀土金属及其混合物的元素的储存化合物，并且具有掺杂有铈的均匀的镁 - 铝混合氧化物 描述了作为储存化合物的载体材料的氧化物。 使用该储存材料的氮氧化物储存催化剂具有广泛的工作范围，高储存效率和良好的耐老化性。
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5.发明授权公开(公告)号：US07670577B2
公开(公告)日：2010-03-02
申请号：US12090936
申请日：2006-10-19
CPC分类号： F01N3/0871 , Y02T10/20
摘要： A nitrogen oxide storage catalytic converter which is operated for a relatively long time at low exhaust-gas temperatures in the range between 120 and 250° C. exhibits a decreasing storage capacity as a result of incomplete regeneration at said temperatures. In order to re-establish the original storage capacity of the catalytic converter which is operated in this way, two-stage regeneration is proposed, wherein the storage catalytic converter is initially partially regenerated at the low exhaust gas temperature by means of a switch from the lean mode to the rich mode, and wherein subsequently, with rich exhaust gas again, the exhaust-gas temperature of the engine is raised into a range of between 300 and 400° C. for complete regeneration.
摘要翻译： 在120-250℃的低废气温度下操作较长时间的氮氧化物储存催化转化器，由于在所述温度下的不完全再生，表现出降低的储存能力。 为了重新建立以这种方式运行的催化转化器的原始储存能力，提出了两级再生，其中储存催化转化器最初在低废气温度下部分地通过从 稀模式到富模式，并且随后再次具有浓排气，发动机的排气温度升高到300-400℃之间，以完全再生。
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6.发明申请公开(公告)号：US20070199303A1
公开(公告)日：2007-08-30
申请号：US10589424
申请日：2005-02-04
CPC分类号： F01N11/005 , B01D53/9495 , F01N3/0871 , F01N3/0885 , F01N2430/06 , F01N2550/03 , Y02T10/20 , Y02T10/47
摘要： When a nitrogen oxide storage catalyst is being regenerated, the regeneration may be terminated for example as a result of a premature load change in the engine, which can lead to incomplete emptying of the storage catalyst. The residual filling level which remains in the catalyst following an incomplete regeneration of this nature is used as the starting value for calculation of the filling level during the next storage phase. After incomplete regeneration, the nitrogen oxide conversion rate is initially greater than would be expected, on account of the residual filling level. By taking this increased conversion rate into account when calculating the filling level during the storage phase, it is possible to further improve the accuracy of the calculation.
摘要翻译： 当再生氮氧化物储存催化剂时，例如由于发动机过早的负荷变化的结果，再生可能终止，这可导致储存催化剂的不完全排空。 在这种性质的不完全再生之后残留在催化剂中的残余填充量被用作在下一个储存阶段期间计算填充量的起始值。 在不完全再生之后，氮氧化物转化率最初大于预期的，因为残留的填充量。 通过在存储阶段计算填充水平时考虑到提高的转换率，可以进一步提高计算的准确性。
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