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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：US08635852B2
公开(公告)日：2014-01-28
申请号：US12579618
申请日：2009-10-15
CPC分类号： F02D41/029 , F01N3/031 , F01N3/035 , F01N3/0821 , F01N3/0878 , F02D41/0057 , F02D41/0065 , F02D41/064 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , Y02T10/47
摘要： Methods and systems are provided for operating an engine including an exhaust treatment system coupled to an engine exhaust, the exhaust treatment system further coupled to an engine intake via an exhaust gas recirculation (EGR) system. One example method comprises, operating in a first mode including routing exhaust gas through the exhaust treatment system to an exhaust tailpipe; operating in a second mode including routing exhaust gas through the exhaust treatment system to an engine intake via the EGR system, and operating in a third mode including routing exhaust gas to an engine intake through the EGR system while bypassing the exhaust treatment system.
摘要翻译： 提供了用于操作发动机的方法和系统，所述发动机包括耦合到发动机排气的排气处理系统，所述排气处理系统还经由排气再循环（EGR）系统耦合到发动机进气口。 一个示例性方法包括：以第一模式操作，包括将排气通过排气处理系统排向排气尾管; 在第二模式中操作，包括经由排气处理系统将废气排出到经由EGR系统的发动机进气口，并且在第三模式下操作，包括在旁路排气处理系统的同时通过EGR系统将排气排放到发动机进气口。
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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：US08926910B2
公开(公告)日：2015-01-06
申请号：US13367673
申请日：2012-02-07
申请人： Jason Aaron Lupescu , Hungwen Jen
发明人： Jason Aaron Lupescu , Hungwen Jen
IPC分类号： B01D50/00
CPC分类号： B01D53/04 , B01D53/9486 , B01D2253/108 , B01D2253/1124 , B01D2257/70 , F01N3/0807 , F01N3/0835 , F01N13/16 , F01N2370/24 , Y02T10/20
摘要： A hydrocarbon trap is provided for reducing cold-start hydrocarbon emissions. The trap contains an acidic absorption material for improving absorption of low molecular weight hydrocarbons. The acidic absorption materials may be used either alone or in combination with zeolites which are integrated into and/or supported on a monolithic substrate. The hydrocarbon trap may be positioned in the exhaust gas passage of a vehicle such that hydrocarbons are adsorbed on the trap and stored until the engine and exhaust reach a sufficient temperature for desorption.
摘要翻译： 提供了一种用于减少冷启动碳氢化合物排放的烃阱。 该捕集阱含有用于改善低分子量烃吸收的酸性吸收材料。 酸性吸收材料可以单独使用，也可以与整体式和/或支撑在整体式基材上的沸石组合使用。 烃捕集器可以位于车辆的废气通道中，使得烃被吸附在捕集器上并储存，直到发动机和排气达到足够的温度以便解吸。
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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：US20110072801A1
公开(公告)日：2011-03-31
申请号：US12579618
申请日：2009-10-15
CPC分类号： F02D41/029 , F01N3/031 , F01N3/035 , F01N3/0821 , F01N3/0878 , F02D41/0057 , F02D41/0065 , F02D41/064 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , Y02T10/47
摘要： Methods and systems are provided for operating an engine including an exhaust treatment system coupled to an engine exhaust, the exhaust treatment system further coupled to an engine intake via an exhaust gas recirculation (EGR) system. One example method comprises, operating in a first mode including routing exhaust gas through the exhaust treatment system to an exhaust tailpipe; operating in a second mode including routing exhaust gas through the exhaust treatment system to an engine intake via the EGR system, and operating in a third mode including routing exhaust gas to an engine intake through the EGR system while bypassing the exhaust treatment system.
摘要翻译： 提供了用于操作发动机的方法和系统，所述发动机包括耦合到发动机排气的排气处理系统，所述排气处理系统还经由排气再循环（EGR）系统耦合到发动机进气口。 一个示例性方法包括：以第一模式操作，包括将排气通过排气处理系统排向排气尾管; 在第二模式中操作，包括经由排气处理系统将废气排出到经由EGR系统的发动机进气口，并且在第三模式下操作，包括在旁路排气处理系统的同时通过EGR系统将排气排放到发动机进气口。
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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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