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公开(公告)号：US08978360B2
公开(公告)日：2015-03-17
申请号：US12560038
申请日：2009-09-15
申请人： Giovanni Cavataio , Jason Aaron Lupescu , Shane Elwart , James Michael Kerns , Michael James Uhrich
发明人： Giovanni Cavataio , Jason Aaron Lupescu , Shane Elwart , James Michael Kerns , Michael James Uhrich
IPC分类号： F01N3/00 , F01N1/00 , F01N3/08 , F01N3/035 , F01N3/10 , F01N3/28 , F01N9/00 , F02M25/07 , F01N13/00
CPC分类号： F01N3/0807 , F01N3/035 , F01N3/0821 , F01N3/0835 , F01N3/0842 , F01N3/085 , F01N3/101 , F01N3/103 , F01N3/2803 , F01N9/00 , F01N13/0097 , F01N2240/36 , F01N2370/04 , F01N2410/02 , F01N2510/06 , F01N2510/063 , F01N2510/0684 , F01N2560/02 , F01N2570/12 , F01N2570/14 , F02M26/35 , Y02A50/2344 , Y02T10/121 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： A hydrocarbon and NOx trap and related apparatus and methods for reducing cold-start NOx emissions from an engine are provided. In one embodiment a trap includes a first, topmost layer, exposed to an exhaust gas flow path of exhaust gases from an engine, the first layer comprising a zeolite, a second layer, substantially covered by the topmost layer, the second layer comprising a NOx adsorbing material and a monolithic substrate, directly supporting the second layer and indirectly supporting the first layer, the substrate providing a substantially rigid structure of the trap. In this way, engine emissions, such as NOx and hydrocarbons may be adsorbed over the exhaust trap at low temperature and then thermally released, limiting cold start emissions beyond engines that only include a lean NOx trap.
摘要翻译： 提供了一种碳氢化合物和NOx捕集器以及用于减少发动机的冷启动NOx排放的相关装置和方法。 在一个实施例中，捕集器包括暴露于来自发动机的废气的废气流动路径的第一最上层，所述第一层包括基本上由最顶层覆盖的沸石，第二层，第二层包含NOx 吸附材料和整体式基板，直接支撑第二层并间接地支撑第一层，衬底提供陷阱的基本上刚性的结构。 以这种方式，诸如NOx和碳氢化合物的发动机排放物可以在低温下吸附在排气阱上，然后被热释放，限制冷启动排放超过仅包括贫NOx捕集器的发动机。
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公开(公告)号：US08375701B2
公开(公告)日：2013-02-19
申请号：US12182777
申请日：2008-07-30
申请人： Jason Aaron Lupescu , Shane Elwart , James Michael Kerns , Michael James Uhrich , Harendra S. Gandhi
发明人： Jason Aaron Lupescu , Shane Elwart , James Michael Kerns , Michael James Uhrich , Harendra S. Gandhi
IPC分类号： F02M25/06
CPC分类号： F01N3/0871 , F01N3/0807 , F01N3/0835 , F01N2370/04 , F01N2550/03 , Y02T10/20
摘要： Method and systems are provided for operating an engine having a hydrocarbon retaining system coupled to an engine exhaust and an engine intake. During an engine cold start, routing exhaust gas to the hydrocarbon retaining system to store hydrocarbons in the hydrocarbon retaining system. Then, depending on temperature, the hydrocarbons are purged with varying amounts of exhaust gas and fresh air in order to maintain proper temperature control.
摘要翻译： 提供了用于操作具有耦合到发动机排气和发动机进气口的烃保持系统的发动机的方法和系统。 在发动机冷启动期间，将废气排放到烃保留系统以将碳氢化合物储存在烃保持系统中。 然后，根据温度，用不同量的废气和新鲜空气吹扫碳氢化合物，以保持适当的温度控制。
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公开(公告)号：US20120204544A1
公开(公告)日：2012-08-16
申请号：US13454450
申请日：2012-04-24
申请人： Michael James Uhrich , Stephen B. Smith , James Michael Kerns , Shane Elwart , Jason Aaron Lupescu
发明人： Michael James Uhrich , Stephen B. Smith , James Michael Kerns , Shane Elwart , Jason Aaron Lupescu
CPC分类号： F01N3/0807 , F01N3/0835 , F01N3/0871 , F01N2240/36 , F01N2410/03 , F01N2410/12 , F01N2470/30 , Y02T10/20 , Y02T10/22
摘要： Methods and systems are provided for operating an engine having a hydrocarbon retaining system and an emission control device coupled to an engine exhaust, the engine exhaust comprising a venturi. One example method comprises, during a storing condition, routing exhaust gas through the venturi without generating a venturi action, and then to the hydrocarbon retaining system, while bypassing the emission control device, to store hydrocarbons in the hydrocarbon retaining system, and during a purging condition, routing exhaust gas through the venturi while generating venturi action, then to the emission control device, and then to the hydrocarbon retaining system, to purge stored hydrocarbons, wherein a flow of purged hydrocarbons is drawn back to the venturi via venturi action.
摘要翻译： 提供了用于操作具有碳氢化合物保持系统的发动机和耦合到发动机排气的排放控制装置的方法和系统，所述发动机排气包括文氏管。 一个示例性方法包括在储存条件期间，通过文丘里管排出废气而不产生文丘里管作用，然后在绕过排放控制装置的同时，将碳氢化合物储存在碳氢化合物保留系统中并在清洗期间 条件是，通过文丘里管排出废气，同时产生文氏管作用，然后排放到排放控制装置，然后到烃保留系统，以清除储存的碳氢化合物，其中通过文丘里作用将清除的烃流引导回文丘里管。
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公开(公告)号：US20090120071A1
公开(公告)日：2009-05-14
申请号：US12147292
申请日：2008-06-26
申请人： Harendra S. Gandhi , Michael James Uhrich , Shane Elwart , James Michael Kerns , Jason Aaron Lupescu
发明人： Harendra S. Gandhi , Michael James Uhrich , Shane Elwart , James Michael Kerns , Jason Aaron Lupescu
IPC分类号： F01N9/00
CPC分类号： F02D41/0025 , F01N5/02 , F02B23/104 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02D19/084 , F02D19/088 , F02D41/062 , F02M25/0809 , F02M25/0854 , F02M25/089 , Y02T10/123 , Y02T10/16 , Y02T10/36
摘要： Systems, methods, and computer readable storage media are described in which exhaust gas is routed to a hydrocarbon retaining device during starting, and purged to the engine intake manifold. Various alternative approaches are described for controlling operation and diagnosing degradation. Further, various interrelated configurations are described.
摘要翻译： 描述了系统，方法和计算机可读存储介质，其中废气在启动期间被引导到碳氢化合物保持装置，并被清除到发动机进气歧管。 描述了用于控制操作和诊断降解的各种替代方法。 此外，描述了各种相关的配置。
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公开(公告)号：US20120137659A1
公开(公告)日：2012-06-07
申请号：US13396394
申请日：2012-02-14
IPC分类号： F02M25/06
CPC分类号： F01N5/02 , F01N3/035 , F01N3/2832 , F02B23/104 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02D19/084 , F02D41/0025 , F02D41/062 , F02M25/0809 , F02M25/0854 , F02M25/089 , Y02T10/16 , Y02T10/36
摘要： Systems, methods, and computer readable storage media are described in which exhaust gas is routed to a hydrocarbon retaining device during starting, and purged to the engine intake manifold. Various alternative approaches are described for controlling operation and diagnosing degradation. Further, various interrelated configurations are described.
摘要翻译： 描述了系统，方法和计算机可读存储介质，其中废气在启动期间被引导到碳氢化合物保持装置，并被清除到发动机进气歧管。 描述了用于控制操作和诊断降解的各种替代方法。 此外，描述了各种相关的配置。
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公开(公告)号：US07913672B2
公开(公告)日：2011-03-29
申请号：US12147251
申请日：2008-06-26
CPC分类号： F01N5/02 , F02B23/104 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02D19/084 , F02D41/0025 , F02D41/062 , F02M25/0809 , F02M25/0854 , F02M25/089 , Y02T10/16 , Y02T10/36
摘要： Systems, methods, and computer readable storage media are described in which exhaust gas is routed to a hydrocarbon retaining device during starting, and purged to the engine intake manifold. Various alternative approaches are described for controlling operation and diagnosing degradation. Further, various interrelated configurations are described.
摘要翻译： 描述了系统，方法和计算机可读存储介质，其中废气在启动期间被引导到碳氢化合物保持装置，并被清除到发动机进气歧管。 描述了用于控制操作和诊断降解的各种替代方法。 此外，描述了各种相关的配置。
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公开(公告)号：US20110061371A1
公开(公告)日：2011-03-17
申请号：US12560038
申请日：2009-09-15
申请人： Giovanni Cavataio , Jason Aaron Lupescu , Shane Elwart , James Michael Kerns , Michael James Uhrich
发明人： Giovanni Cavataio , Jason Aaron Lupescu , Shane Elwart , James Michael Kerns , Michael James Uhrich
CPC分类号： F01N3/0807 , F01N3/035 , F01N3/0821 , F01N3/0835 , F01N3/0842 , F01N3/085 , F01N3/101 , F01N3/103 , F01N3/2803 , F01N9/00 , F01N13/0097 , F01N2240/36 , F01N2370/04 , F01N2410/02 , F01N2510/06 , F01N2510/063 , F01N2510/0684 , F01N2560/02 , F01N2570/12 , F01N2570/14 , F02M26/35 , Y02A50/2344 , Y02T10/121 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： A hydrocarbon and NOx trap and related apparatus and methods for reducing cold-start NOx emissions from an engine are provided. In one embodiment a trap includes a first, topmost layer, exposed to an exhaust gas flow path of exhaust gases from an engine, the first layer comprising a zeolite, a second layer, substantially covered by the top most layer, the second layer comprising a NOx adsorbing material and a monolithic substrate, directly supporting the second layer and indirectly supporting the first layer, the substrate providing a substantially rigid structure of the trap.
摘要翻译： 提供了一种碳氢化合物和NOx捕集器以及用于减少发动机的冷启动NOx排放的相关装置和方法。 在一个实施方案中，捕集器包括暴露于来自发动机的废气的排气流动路径的第一最上层，所述第一层包括沸石，基本上被最顶层覆盖的第二层，第二层包括 NOx吸附材料和整体式基板，直接支撑第二层并间接地支撑第一层，基板提供陷阱的基本上刚性的结构。
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公开(公告)号：US20100223921A1
公开(公告)日：2010-09-09
申请号：US12396782
申请日：2009-03-03
申请人： Michael James Uhrich , Stephen B. Smith , James Michael Kerns , Shane Elwart , Jason Aaron Lupescu
发明人： Michael James Uhrich , Stephen B. Smith , James Michael Kerns , Shane Elwart , Jason Aaron Lupescu
IPC分类号： F01N3/021
CPC分类号： F01N3/0807 , F01N3/0835 , F01N3/0871 , F01N2240/36 , F01N2410/03 , F01N2410/12 , F01N2470/30 , Y02T10/20 , Y02T10/22
摘要： Methods and systems are provided for operating an engine having a hydrocarbon retaining system and an emission control device coupled to an engine exhaust, the engine exhaust comprising a venturi. One example method comprises, during a storing condition, routing exhaust gas through the venturi without generating a venturi action, and then to the hydrocarbon retaining system, while bypassing the emission control device, to store hydrocarbons in the hydrocarbon retaining system, and during a purging condition, routing exhaust gas through the venturi while generating venturi action, then to the emission control device, and then to the hydrocarbon retaining system, to purge stored hydrocarbons, wherein a flow of purged hydrocarbons is drawn back to the venturi via venturi action.
摘要翻译： 提供了用于操作具有碳氢化合物保持系统的发动机和耦合到发动机排气的排放控制装置的方法和系统，所述发动机排气包括文氏管。 一个示例性方法包括在储存条件期间，通过文丘里管排出废气而不产生文丘里管作用，然后在绕过排放控制装置的同时，将碳氢化合物储存在碳氢化合物保留系统中并在清洗期间 条件是，通过文丘里管排出废气，同时产生文氏管作用，然后排放到排放控制装置，然后到烃保留系统，以清除储存的碳氢化合物，其中通过文丘里作用将清除的烃流引导回文丘里管。
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公开(公告)号：US20100024396A1
公开(公告)日：2010-02-04
申请号：US12182777
申请日：2008-07-30
申请人： Jason Aaron Lupescu , Shane Elwart , James Michael Kerns , Michael James Uhrich , Harendra S. Gandhi
发明人： Jason Aaron Lupescu , Shane Elwart , James Michael Kerns , Michael James Uhrich , Harendra S. Gandhi
CPC分类号： F01N3/0871 , F01N3/0807 , F01N3/0835 , F01N2370/04 , F01N2550/03 , Y02T10/20
摘要： Method and systems are provided for operating an engine having a hydrocarbon retaining system coupled to an engine exhaust and an engine intake. One example method comprises, during an engine cold start, routing exhaust gas to the hydrocarbon retaining system to store hydrocarbons in the hydrocarbon retaining system. The method further comprises, during a first purging condition where the exhaust gas is at a first temperature, purging the hydrocarbon retaining system with at least exhaust gas, and during a second purging condition where the exhaust gas is at a second temperature, said second temperature being higher than said first temperature, mixing the exhaust gas with an amount of fresh air to form a purging gas mixture, and purging the hydrocarbon retaining system with said purging gas mixture.
摘要翻译： 提供了用于操作具有耦合到发动机排气和发动机进气口的烃保持系统的发动机的方法和系统。 一个示例性方法包括在发动机冷启动期间将排气排放到烃保持系统以将碳氢化合物储存在烃保持系统中。 该方法还包括在排气处于第一温度的第一净化条件下，至少排出气体来清除烃保留系统，并且在废气处于第二温度的第二吹扫条件期间，所述第二温度 高于所述第一温度，将废气与一定量的新鲜空气混合以形成净化气体混合物，并用所述吹扫气体混合物吹扫所述烃保留系统。
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公开(公告)号：US08707683B2
公开(公告)日：2014-04-29
申请号：US13454450
申请日：2012-04-24
申请人： Michael James Uhrich , Stephen B. Smith , James Michael Kerns , Shane Elwart , Jason Aaron Lupescu
发明人： Michael James Uhrich , Stephen B. Smith , James Michael Kerns , Shane Elwart , Jason Aaron Lupescu
CPC分类号： F01N3/0807 , F01N3/0835 , F01N3/0871 , F01N2240/36 , F01N2410/03 , F01N2410/12 , F01N2470/30 , Y02T10/20 , Y02T10/22
摘要： Methods and systems are provided for operating an engine having a hydrocarbon retaining system and an emission control device coupled to an engine exhaust, the engine exhaust comprising a venturi. One example method comprises, during a storing condition, routing exhaust gas through the venturi without generating a venturi action, and then to the hydrocarbon retaining system, while bypassing the emission control device, to store hydrocarbons in the hydrocarbon retaining system, and during a purging condition, routing exhaust gas through the venturi while generating venturi action, then to the emission control device, and then to the hydrocarbon retaining system, to purge stored hydrocarbons, wherein a flow of purged hydrocarbons is drawn back to the venturi via venturi action.
摘要翻译： 提供了用于操作具有碳氢化合物保持系统的发动机和耦合到发动机排气的排放控制装置的方法和系统，所述发动机排气包括文氏管。 一个示例性方法包括在储存条件期间，通过文丘里管排出废气而不产生文丘里管作用，然后在绕过排放控制装置的同时，将碳氢化合物储存在碳氢化合物保留系统中并在清洗期间 条件是，通过文丘里管排出废气，同时产生文氏管作用，然后排放到排放控制装置，然后到烃保留系统，以清除储存的碳氢化合物，其中通过文丘里作用将清除的烃流引导回文丘里管。
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