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公开(公告)号：US09394837B2
公开(公告)日：2016-07-19
申请号：US13584485
申请日：2012-08-13
CPC分类号： F02D37/02 , F01N3/035 , F01N3/101 , F02D41/0005 , F02D41/0007 , F02D41/0087 , F02D41/025 , F02D41/029 , F02D41/12 , F02D2041/0022 , F02P5/1512 , Y02A50/2324 , Y02T10/22 , Y02T10/26 , Y02T10/42 , Y02T10/46
摘要： An engine system and method for operating an engine that includes a particulate filter is described. In one example, spark delivery to one or more engine cylinders is ceased while fuel is continued to be injected to the one or more cylinders to improve particulate filter regeneration. The system and method may be particularly beneficial for direct injection turbocharged engines.
摘要翻译： 描述了一种用于操作包括微粒过滤器的发动机的发动机系统和方法。 在一个示例中，停止向一个或多个发动机气缸的火花输送，同时燃料继续被喷射到一个或多个气缸以改善微粒过滤器再生。 该系统和方法对于直接喷射涡轮增压发动机可能是特别有益的。
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公开(公告)号：US20140041362A1
公开(公告)日：2014-02-13
申请号：US13584485
申请日：2012-08-13
CPC分类号： F02D37/02 , F01N3/035 , F01N3/101 , F02D41/0005 , F02D41/0007 , F02D41/0087 , F02D41/025 , F02D41/029 , F02D41/12 , F02D2041/0022 , F02P5/1512 , Y02A50/2324 , Y02T10/22 , Y02T10/26 , Y02T10/42 , Y02T10/46
摘要： An engine system and method for operating an engine that includes a particulate filter is described. In one example, spark delivery to one or more engine cylinders is ceased while fuel is continued to be injected to the one or more cylinders to improve particulate filter regeneration. The system and method may be particularly beneficial for direct injection turbocharged engines.
摘要翻译： 描述了一种用于操作包括微粒过滤器的发动机的发动机系统和方法。 在一个示例中，停止向一个或多个发动机气缸的火花输送，同时燃料继续被喷射到一个或多个气缸以改善微粒过滤器再生。 该系统和方法对于直接喷射涡轮增压发动机可能是特别有益的。
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公开(公告)号：US09964058B2
公开(公告)日：2018-05-08
申请号：US13438740
申请日：2012-04-03
申请人： Eric Kurtz , Paul Joseph Tennison , William Charles Ruona , Waheed Alashe , David A. May , Joshua Putman Styron
发明人： Eric Kurtz , Paul Joseph Tennison , William Charles Ruona , Waheed Alashe , David A. May , Joshua Putman Styron
CPC分类号： F02D41/0235 , F01N3/208 , F01N2610/142 , F01N2900/1814 , F02B39/04 , F02D21/08 , F02D41/0007 , F02D41/005 , F02D41/3836 , F02D41/401 , Y02A50/2325 , Y02T10/24 , Y02T10/44 , Y02T10/47
摘要： Methods and systems for increasing fuel economy of a vehicle including a SCR catalyst are presented. In one example, an amount of EGR provided to an engine is decreased in response to performance of the SCR being within a predetermined range of performance. The methods and systems may increase vehicle fuel economy while vehicle tailpipe emissions are achieved.
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公开(公告)号：US08667780B2
公开(公告)日：2014-03-11
申请号：US13736830
申请日：2013-01-08
申请人： Jeffrey Scott Hepburn , William Charles Ruona , Brien Lloyd Fulton , Gopichandra Surnilla , Eric Matthew Kurtz
发明人： Jeffrey Scott Hepburn , William Charles Ruona , Brien Lloyd Fulton , Gopichandra Surnilla , Eric Matthew Kurtz
CPC分类号： F01N3/035 , F01N3/021 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N2240/20 , F01N2610/02 , F01N2610/14 , F02B37/18 , F02M26/08 , F02M26/15 , F02M26/24 , Y02T10/24 , Y02T10/47
摘要： Methods and systems are provided for operating an engine including an emission control system, the emission control system comprising a catalyst downstream of a turbine of a boosting device and a reductant injector upstream of the turbine. In one example, the method comprises injecting reductant into exhaust upstream of the turbine, mixing the injected reductant with exhaust gas via the turbine, and delivering the mixed reductant to the catalyst.
摘要翻译： 提供了用于操作包括排放控制系统的发动机的方法和系统，所述排放控制系统包括在升压装置的涡轮机下游的催化剂和在涡轮机上游的还原剂喷射器。 在一个实例中，该方法包括将还原剂注入到涡轮机上游的排气口中，通过涡轮将注入的还原剂与废气混合，并将混合的还原剂输送到催化剂。
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5.发明申请SYSTEM AND METHOD FOR INCREASING FUEL ECONOMY OF A VEHICLE INCLUDING A SCR CATALYST 有权增加包括SCR催化剂在内的车辆燃料经济性的系统和方法公开(公告)号：US20130261930A1
公开(公告)日：2013-10-03
申请号：US13438740
申请日：2012-04-03
申请人： Eric Kurtz , Paul Joseph Tennison , William Charles Ruona , Waheed Alashe , David A. May , Joshua Putman Styron
发明人： Eric Kurtz , Paul Joseph Tennison , William Charles Ruona , Waheed Alashe , David A. May , Joshua Putman Styron
CPC分类号： F02D41/0235 , F01N3/208 , F01N2610/142 , F01N2900/1814 , F02B39/04 , F02D21/08 , F02D41/0007 , F02D41/005 , F02D41/3836 , F02D41/401 , Y02A50/2325 , Y02T10/24 , Y02T10/44 , Y02T10/47
摘要： Methods and systems for increasing fuel economy of a vehicle including a SCR catalyst are presented. In one example, an amount of EGR provided to an engine is decreased in response to performance of the SCR being within a predetermined range of performance. The methods and systems may increase vehicle fuel economy while vehicle tailpipe emissions are achieved.
摘要翻译： 提出了包括SCR催化剂在内的用于提高燃料经济性的方法和系统。 在一个示例中，响应于SCR的性能在预定的性能范围内，提供给发动机的EGR量减小。 方法和系统可以提高车辆燃料经济性，同时实现车辆尾气排放。
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公开(公告)号：US20120117963A1
公开(公告)日：2012-05-17
申请号：US13351188
申请日：2012-01-16
申请人： Jeffrey Scott Hepburn , William Charles Ruona , Brien Lloyd Fulton , Gopichandra Surnilla , Eric Matthew Kurtz
发明人： Jeffrey Scott Hepburn , William Charles Ruona , Brien Lloyd Fulton , Gopichandra Surnilla , Eric Matthew Kurtz
IPC分类号： F02M25/07
CPC分类号： F01N9/002 , F01N3/021 , F01N2250/02 , F01N2570/10 , F02B29/0406 , F02D41/0007 , F02D41/0055 , F02D41/029 , F02D2200/0802 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/23 , Y02A50/2325 , Y02T10/144 , Y02T10/20 , Y02T10/47
摘要： Methods and systems are provided for operating a turbocharged engine including a particulate filter positioned upstream of a turbocharger turbine, a catalyst positioned downstream of the turbine, and an EGR passage coupled between an engine exhaust and engine intake. In one example, the method comprises, diverting exhaust gas from downstream of the filter to the engine intake via the EGR passage, and adjusting an amount of diverted exhaust gas based on filter operating conditions.
摘要翻译： 提供了用于操作涡轮增压发动机的方法和系统，所述涡轮增压发动机包括位于涡轮增压器涡轮机上游的微粒过滤器，位于涡轮机下游的催化剂，以及联接在发动机排气和发动机进气口之间的EGR通道。 在一个示例中，该方法包括：经由EGR通道将废气从过滤器的下游转向发动机进气口，并且基于过滤器操作条件来调节排出的排气量。
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公开(公告)号：US20120023937A1
公开(公告)日：2012-02-02
申请号：US13239137
申请日：2011-09-21
IPC分类号： F02B33/44
CPC分类号： F02D41/005 , F02B29/0406 , F02B37/007 , F02D9/02 , F02D41/0065 , F02D41/0077 , F02D2041/0017 , F02M26/05 , F02M26/06 , F02M26/08 , F02M26/24 , F02M26/28 , F02M26/38 , F02M26/42 , Y02T10/47
摘要： A method is provided for controlling EGR flow in turbocharged engine. The method comprises operating a low-pressure exhaust gas recirculation (LP-EGR) system at a fixed EGR percentage rate of fresh airflow from mid-load down to a minimum engine load, even as load changes. In this way, errors in the delivered LP-EGR rate during transient conditions may be alleviated by providing a fixed EGR percentage of fresh airflow at all engine loads within a fixed mode range.
摘要翻译： 提供了一种用于控制涡轮增压发动机中的EGR流量的方法。 该方法包括在负载变化的情况下以新的气流从中负载降低至最小发动机负荷的固定EGR率来操作低压排气再循环（LP-EGR）系统。 以这种方式，通过在固定模式范围内的所有发动机负载下提供新鲜气流的固定EGR百分比可以减轻瞬态条件下输送的LP-EGR率的误差。
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公开(公告)号：US08096125B2
公开(公告)日：2012-01-17
申请号：US12645793
申请日：2009-12-23
申请人： Jeffrey Scott Hepburn , William Charles Ruona , Brien Lloyd Fulton , Gopichandra Surnilla , Eric Matthew Kurtz
发明人： Jeffrey Scott Hepburn , William Charles Ruona , Brien Lloyd Fulton , Gopichandra Surnilla , Eric Matthew Kurtz
CPC分类号： F01N9/002 , F01N3/021 , F01N2250/02 , F01N2570/10 , F02B29/0406 , F02D41/0007 , F02D41/0055 , F02D41/029 , F02D2200/0802 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/23 , Y02A50/2325 , Y02T10/144 , Y02T10/20 , Y02T10/47
摘要： Methods and systems are provided for operating a turbocharged engine including a particulate filter positioned upstream of a turbocharger turbine, a catalyst positioned downstream of the turbine, and an EGR passage coupled between an engine exhaust and engine intake. In one example, the method comprises, diverting exhaust gas from downstream of the filter to the engine intake via the EGR passage, and adjusting an amount of diverted exhaust gas based on filter operating conditions.
摘要翻译： 提供了用于操作涡轮增压发动机的方法和系统，所述涡轮增压发动机包括位于涡轮增压器涡轮机上游的微粒过滤器，位于涡轮机下游的催化剂，以及联接在发动机排气和发动机进气口之间的EGR通道。 在一个示例中，该方法包括：经由EGR通道将废气从过滤器的下游转向发动机进气口，并且基于过滤器操作条件来调节排出的排气量。
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公开(公告)号：US20110137542A1
公开(公告)日：2011-06-09
申请号：US12765081
申请日：2010-04-22
CPC分类号： F02D41/1439 , F02D9/04 , F02D41/0065 , F02D41/1408 , F02D41/146 , F02D41/1466 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , Y02T10/47
摘要： A method of operating an engine system is described in which a back-pressure valve of a low pressure EGR system can be modulated at a lower frequency during an EGR operation, and at a higher frequency when additional exhaust gas sensing is requested. Back-pressure valve modulation can therefore be used to promote exhaust gas mixing while providing EGR. Exhaust gas constituents in the mixed exhaust gas can then be sensed with higher accuracy by downstream exhaust gas sensors.
摘要翻译： 描述了一种操作发动机系统的方法，其中在EGR操作期间可以以较低的频率调制低压EGR系统的背压阀，并且在需要额外的废气感测时以较高的频率进行调节。 因此，背压阀调节可用于在提供EGR时促进排气混合。 然后可以通过下游排气传感器以更高的精度感测混合废气中的废气成分。
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公开(公告)号：US07000383B2
公开(公告)日：2006-02-21
申请号：US10999618
申请日：2004-11-29
IPC分类号： F01N3/00
CPC分类号： F01N3/035 , B01D53/9431 , B01D53/9495 , F01N3/023 , F01N3/2066 , F01N13/009 , F01N2240/16 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F01N2610/03 , F01N2610/08 , F01N2610/10 , F01N2610/107 , F02D41/1475 , Y02A50/2325 , Y02A50/2344 , Y02T10/24
摘要： A method and a system for improved reductant delivery to an exhaust gas aftertreatment device for a lean burn internal combustion engine exhaust are presented. The system includes a heated evaporator unit into which a mixture of reductant and air in injected, wherein the mixture is vaporized and introduced into the exhaust gas aftertreatment device. Introducing the reductant mixed with air into the heated evaporator unit prevents lacquering and soot deposits on the heated element housed inside the unit, and also speeds up the vaporization process due to better reductant distribution thus reducing system response delays and improving conversion efficiency of the exhaust gas aftertreatment device. The reductant delivery system is further improved by adding a catalyst to it, and by preventing the reductant and air mixture from coming into direct contact with the surface of the heating element.
摘要翻译： 提出了一种用于改善还原剂输送到贫燃燃烧内燃机排气废气后处理装置的方法和系统。 该系统包括加热的蒸发器单元，其中注入的还原剂和空气的混合物，其中混合物蒸发并引入废气后处理装置。 将与空气混合的还原剂引入加热的蒸发器单元防止在容纳在单元内的加热元件上的涂漆和烟灰沉积，并且还由于更好的还原剂分布而加速蒸发过程，从而减少系统响应延迟并提高废气的转化效率 后处理装置。 通过向其中加入催化剂，并且通过防止还原剂和空气混合物与加热元件的表面直接接触来进一步改进还原剂递送系统。
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