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1.发明授权Method and apparatus for controlling exhaust emissions in a spark-ignition direct-injection engine 有权用于控制火花点火直喷式发动机中的废气排放的方法和装置公开(公告)号：US08291695B2
公开(公告)日：2012-10-23
申请号：US12329162
申请日：2008-12-05
申请人： Kevin L. Perry , Thompson M. Sloane , Jong H. Lee , Kushal Narayanaswamy , Wei Li , Paul M. Najt
发明人： Kevin L. Perry , Thompson M. Sloane , Jong H. Lee , Kushal Narayanaswamy , Wei Li , Paul M. Najt
IPC分类号： F01N3/00
CPC分类号： F02D37/02 , F01N3/0814 , F01N3/2073 , F01N2240/30 , F01N2570/18 , F01N2610/02 , F02D13/02 , F02D41/0235 , F02D41/405 , Y02T10/18 , Y02T10/22 , Y02T10/24
摘要： Exhaust emissions from a spark-ignition direct-injection engine connected to an oxidation catalytic device and a selective catalyst reduction device having a capacity to store ammonia reductant are controlled. The engine operates in a first combustion mode to generate ammonia reductant, stored on the second aftertreatment device. The engine operates lean of stoichiometry and nitrides of oxygen in the exhaust gas feedstream are reduced on the second aftertreatment device.
摘要翻译： 控制连接到氧化催化装置的火花点火直喷发动机和具有储存氨还原剂能力的选择性催化剂还原装置的废气排放。 发动机以第一燃烧模式运行以产生存储在第二后处理装置上的氨还原剂。 该发动机的化学计量精度较低，而在第二后处理装置中，排气进料流中的氮的氮化物减少。
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2.发明申请METHOD AND APPARATUS FOR CONTROLLING EXHAUST EMISSIONS IN A SPARK-IGNITION DIRECT-INJECTION ENGINE 有权用于控制火花点火直喷发动机排气排放的方法和装置公开(公告)号：US20100139251A1
公开(公告)日：2010-06-10
申请号：US12329162
申请日：2008-12-05
申请人： Kevin L. Perry , Thompson M. Sloane , Jong H. Lee , Kushal Narayanaswamy , Wei Li , Paul M. Najt
发明人： Kevin L. Perry , Thompson M. Sloane , Jong H. Lee , Kushal Narayanaswamy , Wei Li , Paul M. Najt
IPC分类号： F01N9/00
CPC分类号： F02D37/02 , F01N3/0814 , F01N3/2073 , F01N2240/30 , F01N2570/18 , F01N2610/02 , F02D13/02 , F02D41/0235 , F02D41/405 , Y02T10/18 , Y02T10/22 , Y02T10/24
摘要： Exhaust emissions from a spark-ignition direct-injection engine connected to an oxidation catalytic device and a selective catalyst reduction device having a capacity to store ammonia reductant are controlled. The engine operates in a first combustion mode to generate ammonia reductant, stored on the second aftertreatment device. The engine operates lean of stoichiometry and nitrides of oxygen in the exhaust gas feedstream are reduced on the second aftertreatment device.
摘要翻译： 控制连接到氧化催化装置的火花点火直喷发动机和具有储存氨还原剂能力的选择性催化剂还原装置的废气排放。 发动机以第一燃烧模式运行以产生存储在第二后处理装置上的氨还原剂。 该发动机的化学计量精度较低，而在第二后处理装置中，排气进料流中的氮的氮化物减少。
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3.发明申请TECHNIQUE FOR PRODUCTION OF AMMONIA ON DEMAND IN A THREE WAY CATALYST FOR A PASSIVE SELECTIVE CATALYTIC REDUCTION SYSTEM 有权在三次选择性催化还原系统的三种催化剂中生产需氧量的技术公开(公告)号：US20100186390A1
公开(公告)日：2010-07-29
申请号：US12360901
申请日：2009-01-28
申请人： Kevin L. Perry , David J. Cleary , Kushal Narayanaswamy , Paul M. Najt , Wei Li , James Donald Smith , Chang H. Kim , Thompson M. Sloane
发明人： Kevin L. Perry , David J. Cleary , Kushal Narayanaswamy , Paul M. Najt , Wei Li , James Donald Smith , Chang H. Kim , Thompson M. Sloane
CPC分类号： F01N3/2073 , F01N2240/25 , F01N2570/14 , Y02A50/2344
摘要： A method for controlling a powertrain includes selectively initiating an ammonia generation cycle, including injecting fuel into a combustion chamber of an engine before a primary combustion event to a calibrated air fuel ratio in a range lean of stoichiometry based upon generation of NOx within the combustion chamber, injecting fuel into the combustion chamber after the primary combustion event based upon an overall air fuel ratio in a range rich of stoichiometry and resulting generation of molecular hydrogen, and utilizing a catalyst device between the engine and a selective catalytic reduction device to produce ammonia.
摘要翻译： 一种用于控制动力系的方法包括选择性地启动氨生成循环，包括在初级燃烧事件之前将燃料喷射到发动机的燃烧室内，以基于燃烧室内的NOx的产生而以不足于化学计量的范围的校准空燃比 在一次燃烧事件之后，基于在大量化学计量的范围内的总体空气燃料比并且产生分子氢，并且利用发动机和选择性催化还原装置之间的催化剂装置产生氨，将燃料喷射到燃烧室中。
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4.发明授权Technique for production of ammonia on demand in a three way catalyst for a passive selective catalytic reduction system 有权用于生产氨的技术用于被动式选择性催化还原系统的三元催化剂公开(公告)号：US08091342B2
公开(公告)日：2012-01-10
申请号：US12360901
申请日：2009-01-28
申请人： Kevin L. Perry , David J. Cleary , Kushal Narayanaswamy , Paul M. Najt , Wei Li , James Donald Smith , Chang H Kim , Thompson M. Sloane
发明人： Kevin L. Perry , David J. Cleary , Kushal Narayanaswamy , Paul M. Najt , Wei Li , James Donald Smith , Chang H Kim , Thompson M. Sloane
IPC分类号： F01N3/00
CPC分类号： F01N3/2073 , F01N2240/25 , F01N2570/14 , Y02A50/2344
摘要： A method for controlling a powertrain includes selectively initiating an ammonia generation cycle, including injecting fuel into a combustion chamber of an engine before a primary combustion event to a calibrated air fuel ratio in a range lean of stoichiometry based upon generation of NOx within the combustion chamber, injecting fuel into the combustion chamber after the primary combustion event based upon an overall air fuel ratio in a range rich of stoichiometry and resulting generation of molecular hydrogen, and utilizing a catalyst device between the engine and a selective catalytic reduction device to produce ammonia.
摘要翻译： 一种用于控制动力系的方法包括选择性地启动氨生成循环，包括在初级燃烧事件之前将燃料喷射到发动机的燃烧室内，以基于燃烧室内的NOx的产生而以不足于化学计量的范围的校准空燃比 在一次燃烧事件之后，基于在大量化学计量的范围内的总体空气燃料比并且产生分子氢，并且利用发动机和选择性催化还原装置之间的催化剂装置产生氨，将燃料喷射到燃烧室中。
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5.发明授权Fuel efficient ammonia generation strategy for lean-burn engines utilizing passive NH3-SCR for the control of NOx 有权利用无源NH3-SCR用于控制NOx的稀燃燃烧发动机的燃料高效氨生成策略公开(公告)号：US09180408B2
公开(公告)日：2015-11-10
申请号：US13049973
申请日：2011-03-17
申请人： Kevin L. Perry , Wei Li , Kushal Narayanaswamy , Paul M. Najt
发明人： Kevin L. Perry , Wei Li , Kushal Narayanaswamy , Paul M. Najt
CPC分类号： B01D53/9477 , B01D53/9418 , B01D53/9445 , B01D53/9495 , B01D2251/2062 , F01N3/035 , F01N3/0807 , F01N3/0842 , F01N3/101 , F01N3/103 , F01N3/2073 , F01N13/009 , F02D41/027 , F02D41/146 , F02D41/1463 , F02D2041/1468 , F02D2200/0802 , Y02A50/2324 , Y02A50/2325 , Y02T10/22 , Y02T10/24
摘要： A method and system for operating an ammonia generation cycle in an internal combustion engine and a connected aftertreatment system includes monitoring a parameter of engine operation, comparing the parameter of engine operation to a threshold delineating operation of the engine in one of a stoichiometric operation and rich operation, and operating the ammonia generation cycle based upon the comparing indicating the parameter of engine operation exceeding the threshold.
摘要翻译： 一种用于在内燃机和连接的后处理系统中运行氨生成循环的方法和系统包括监测发动机运转参数，将发动机运行参数与化学计量运行中的一种运算和发动机的阈值描绘操作进行比较 基于指示发动机运转的参数超过阈值的比较来操作和运行氨生成循环。
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6.发明申请TECHNIQUE FOR PRODUCTION OF AMMONIA ON DEMAND IN A THREE WAY CATALYST FOR A PASSIVE SELECTIVE CATALYTIC REDUCTION SYSTEM 审中-公开在三次选择性催化还原系统的三种催化剂中生产需氧量的技术公开(公告)号：US20100186391A1
公开(公告)日：2010-07-29
申请号：US12360908
申请日：2009-01-28
申请人： Paul M. Najt , Kushal Narayanaswamy , Kevin L. Perry , David J. Cleary , James Donald Smith , Wei Li , Chang H. Kim
发明人： Paul M. Najt , Kushal Narayanaswamy , Kevin L. Perry , David J. Cleary , James Donald Smith , Wei Li , Chang H. Kim
CPC分类号： B01D53/9431 , B01D53/8696 , B01D53/9477 , B01D2251/2062 , B01D2251/2067 , F01N3/2073 , F01N2240/25 , F01N2570/14 , Y02A50/2344
摘要： A method for controlling a powertrain includes selectively initiating an ammonia generation cycle including injecting fuel into a combustion chamber of an engine before a primary combustion event to a calibrated air fuel ratio in a range lean of stoichiometry based upon generation of NOx within the combustion chamber, injecting fuel into the powertrain after the primary combustion event based upon an overall air fuel ratio in a range rich of stoichiometry and resulting generation of molecular hydrogen, utilizing a hydrogen forming catalyst to reform the injected fuel, and utilizing a catalyst device between the engine and the selective catalytic reduction device to produce ammonia.
摘要翻译： 一种用于控制动力系的方法包括选择性地启动氨生成循环，包括基于燃烧室内的NOx的产生，在一次燃烧事件之前将燃料喷射到发动机的燃烧室内，使其在基于化学计量的范围内的校准空燃比， 在一次燃烧事件之后，基于总体空燃比在大量化学计量的范围内将燃料喷射到动力总成中，并产生分子氢，利用形成氢的催化剂来重整喷射的燃料，并且利用在发动机和 选择性催化还原装置产生氨。
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7.发明授权Catalyst materials for NOx oxidation in an exhaust aftertreatment system that uses passive ammonia SCR 有权在使用无源氨SCR的排气后处理系统中用于NOx氧化的催化剂材料公开(公告)号：US08539760B2
公开(公告)日：2013-09-24
申请号：US12881233
申请日：2010-09-14
申请人： Wei Li , Chang H Kim , Kevin L. Perry , Paul M. Najt , Kushal Narayanaswamy
发明人： Wei Li , Chang H Kim , Kevin L. Perry , Paul M. Najt , Kushal Narayanaswamy
IPC分类号： F01N3/00
CPC分类号： B01D53/9445 , B01D53/9422 , B01D53/944 , B01D53/9477 , B01D2255/204 , B01D2255/2063 , B01D2255/20746 , B01D2255/402 , B01D2255/911 , B01D2258/012 , F01N3/101 , F01N3/103 , F01N3/2066 , F01N3/2073 , F01N13/009 , F01N2370/02 , Y02T10/22 , Y02T10/24
摘要： An exhaust aftertreatment system that receives an exhaust flow from a lean-burn engine and a method for treating the exhaust flow are described. The exhaust aftertreatment system may include a three-way-catalyst, an oxidation catalyst, and a NH3—SCR catalyst. The three-way-catalyst passively generates NH3 from native NOX contained in the exhaust flow when an A/F mixture supplied to the engine is cycled from lean to rich. The generated NH3 is then stored in the NH3—SCR catalyst to facilitate NOX reduction when the A/F mixture supplied to the engine is cycled back to lean. The oxidation catalyst is located upstream of the NH3—SCR catalyst and operates to lower the NO to NO2 molar ratio of the NOX fed to the NH3—SCR catalyst. The oxidation catalyst comprises perovskite oxide particles.
摘要翻译： 描述了从贫燃发动机接收废气流的排气后处理系统和排气流处理方法。 排气后处理系统可以包括三元催化剂，氧化催化剂和NH 3 -SCR催化剂。 当提供给发动机的A / F混合物从稀释循环到浓缩时，三元催化剂被动地从排气流中包含的天然NOX产生NH 3。 然后将生成的NH 3储存在NH3-SCR催化剂中，以便当提供给发动机的A / F混合物循环回稀释时促进NO x还原。 氧化催化剂位于NH3-SCR催化剂的上游，并可以降低进料到NH3-SCR催化剂的NOX的NO2摩尔比。 氧化催化剂包括钙钛矿氧化物颗粒。
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8.发明授权Passive ammonia-selective catalytic reduction for NOx control in internal combustion engines 有权用于内燃机NOx控制的被动氨选择性催化还原公开(公告)号：US08381512B2
公开(公告)日：2013-02-26
申请号：US12430819
申请日：2009-04-27
申请人： Norman D. Brinkman , Paul M. Najt , Kushal Narayanaswamy , David B. Brown , Wei Li , Kevin L. Perry , Gongshin Qi , Orgun A. Guralp
发明人： Norman D. Brinkman , Paul M. Najt , Kushal Narayanaswamy , David B. Brown , Wei Li , Kevin L. Perry , Gongshin Qi , Orgun A. Guralp
CPC分类号： H04L29/0809 , B01D53/9418 , B01D53/944 , B01D53/9477 , B01D53/9495 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/20776 , F01N3/035 , F01N3/0807 , F01N3/0842 , F01N3/101 , F01N3/103 , F01N3/2073 , F01N13/009 , F02D41/027 , F02D41/146 , F02D41/1463 , F02D2041/1468 , F02D2200/0802 , Y02T10/22 , Y02T10/24
摘要： Engine exhaust gas feedstream NOx emissions aftertreatment includes a catalytic device connected upstream of an ammonia-selective catalytic reduction device including a base metal. Engine operation can be modulated to generate an engine-out exhaust gas feedstream that converts to ammonia on the catalytic device. The ammonia is stored on the ammonia-selective catalytic reduction device, and used to reduce NOx emissions in the exhaust gas feedstream.
摘要翻译： 发动机废气进料NOx排放后处理包括连接在包括贱金属的氨选择性催化还原装置的上游的催化装置。 发动机操作可被调制以产生发动机排出的废气进料流，其转化为催化装置上的氨。 氨存储在氨选择性催化还原装置上，用于减少废气进料流中的NOx排放。
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9.发明申请PASSIVE AMMONIA-SELECTIVE CATALYTIC REDUCTION FOR NOx CONTROL IN INTERNAL COMBUSTION ENGINES 有权内燃机中NOx控制的被动氨选择性催化还原公开(公告)号：US20100107606A1
公开(公告)日：2010-05-06
申请号：US12430825
申请日：2009-04-27
CPC分类号： F01N3/2073 , B01D53/9418 , B01D53/9477 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/20776 , B01D2255/911 , F01N13/0093 , F01N13/0097 , F01N2560/021 , F01N2560/026 , F01N2570/14 , F01N2570/18 , F02B23/104 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02D13/0253 , F02D41/0235 , F02D41/027 , F02D41/146 , F02D2200/0802 , Y02T10/123 , Y02T10/22 , Y02T10/24
摘要： Engine exhaust gas feedstream NOx emissions aftertreatment includes a catalytic device and first and second ammonia selective catalytic reduction devices. The first and second ammonia-selective catalytic reduction devices each includes a base metal. Engine operation can be modulated to generate an engine-out exhaust gas feedstream that converts to ammonia. The ammonia is stored on the first and second ammonia selective catalytic reduction devices and used to reduce NOx emissions in the exhaust gas feedstream.
摘要翻译： 发动机废气进料NOx排放后处理包括催化装置和第一和第二氨选择性催化还原装置。 第一和第二氨选择性催化还原装置各自包括贱金属。 可以调节发动机运行，以产生转换成氨的发动机排出的废气进料流。 氨存储在第一和第二氨选择性催化还原装置上，并用于减少废气进料流中的NOx排放。
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10.发明授权Method and apparatus for controlling operation of a spark-ignition direct-injection engine 有权用于控制火花点火直喷发动机的操作的方法和装置公开(公告)号：US08448423B2
公开(公告)日：2013-05-28
申请号：US12330587
申请日：2008-12-09
申请人： Paul M. Najt , Kushal Narayanaswamy , Kevin L. Perry , Wei Li , David J. Cleary , James Donald Smith
发明人： Paul M. Najt , Kushal Narayanaswamy , Kevin L. Perry , Wei Li , David J. Cleary , James Donald Smith
IPC分类号： F01N3/00
CPC分类号： F01N3/2073 , F01N3/021 , F01N3/106 , F01N3/208 , F01N13/009 , F01N2610/02 , F02D37/02 , F02D41/0275 , F02D41/029 , F02D41/1475
摘要： Operation of a spark ignition, direct injection engine having an aftertreatment system including an oxidation catalyst and a selective catalyst reduction device is described. The method includes controlling to a stoichiometric air/fuel ratio and retarding spark ignition timing. Engine fueling is then controlled to a lean air/fuel ratio and spark is retarded. The engine is then operated to generate ammonia reductant. Engine operation then comprises operating at a preferred air/fuel ratio and controlling spark ignition timing to a preferred timing.
摘要翻译： 描述具有包括氧化催化剂和选择性催化剂还原装置的后处理系统的火花点火的直喷式发动机的操作。 该方法包括控制化学计量空气/燃料比并延迟火花点火正时。 然后将发动机加油控制到贫空燃比，并且火花被延迟。 然后运行发动机以产生氨还原剂。 发动机操作然后包括以优选的空气/燃料比操作并且将火花点火正时控制到优选的时间。
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