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公开(公告)号：US20120000183A1
公开(公告)日：2012-01-05
申请号：US12828546
申请日：2010-07-01
申请人： Brad J. Adelman , Vadim Olegovich Strots , Shyam Santhanam , Edward M. Derybowski , Michael J. Miller
发明人： Brad J. Adelman , Vadim Olegovich Strots , Shyam Santhanam , Edward M. Derybowski , Michael J. Miller
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N9/005 , F01N11/00 , F01N2610/02 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： A method (10) for injecting ammonia (NH3) into exhaust gas upstream of a catalyst of an aftertreatment system includes the steps of determining whether a regeneration event is imminent (14) on the basis of predetermined parameters, and determining whether dosing parameters are met (22). The method (10) further includes the steps of calculating an amount of NH3 to fill the catalyst (18) and adjusting a quantity of NH3 dosed (22) before the regeneration event occurs.
摘要翻译： 一种用于将氨（NH 3）注入到后处理系统的催化剂上游的排气中的方法（10）包括以下步骤：基于预定参数确定再生事件是否即将到来（14），并确定是否满足配料参数 （22）。 方法（10）还包括以下步骤：在再生事件发生之前，计算填充催化剂（18）的NH 3量并调节所投入的量（22）。
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公开(公告)号：US08434298B2
公开(公告)日：2013-05-07
申请号：US12828546
申请日：2010-07-01
CPC分类号： F01N3/208 , F01N9/005 , F01N11/00 , F01N2610/02 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： A method (10) for injecting ammonia (NH3) into exhaust gas upstream of a catalyst of an aftertreatment system includes the steps of determining whether a regeneration event is imminent (14) on the basis of predetermined parameters, and determining whether dosing parameters are met (22). The method (10) further includes the steps of calculating an amount of NH3 to fill the catalyst (18) and adjusting a quantity of NH3 dosed (22) before the regeneration event occurs.
摘要翻译： 一种用于将氨（NH 3）注入到后处理系统的催化剂上游的排气中的方法（10）包括以下步骤：基于预定参数确定再生事件是否即将到来（14），并确定是否满足配料参数 （22）。 方法（10）还包括以下步骤：在再生事件发生之前，计算填充催化剂（18）的NH 3量并调节所投入的量（22）。
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公开(公告)号：US20130171050A1
公开(公告)日：2013-07-04
申请号：US13702069
申请日：2010-06-04
IPC分类号： B01D53/94
CPC分类号： B01D53/9495 , B01D53/90 , B01D53/9477 , B01D2251/2062 , F01N3/035 , F01N3/0842 , F01N3/208 , F01N13/009 , F01N2610/02 , Y02T10/24
摘要： A method for injecting ammonia into an exhaust gas stream downstream of a diesel engine includes providing an exhaust gas passageway (11) from the diesel engine to an ambient (14). The exhaust gas passageway (11) includes an NOx Slip Catalyst (NSC) 20 downstream of an NOx Particulate Filter (NPF) 18. The method includes emitting exhaust gas (EG) through the exhaust gas passageway (11), and selectively injecting ammonia (NH3) upstream of the NPF 18, upstream of the NSC (20), both upstream of the NPF and the NSC, or not injecting ammonia, depending on the temperature of the exhaust gas at the NPF and at the NSC.
摘要翻译： 将柴油喷射到柴油发动机下游的废气流中的方法包括从柴油机向环境（14）提供废气通道（11）。 废气通道（11）包括在NOx颗粒过滤器（NPF）18下游的NOx滑动催化剂（NSC）20。该方法包括通过废气通道（11）排放废气（EG），并选择性地将氨 NH3）在NPF 18上游，NSC（20）上游，NPF和NSC两个上游，或不注入氨，取决于NPF和NSC处的废气温度。
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公开(公告)号：US08551432B2
公开(公告)日：2013-10-08
申请号：US13702069
申请日：2010-06-04
CPC分类号： B01D53/9495 , B01D53/90 , B01D53/9477 , B01D2251/2062 , F01N3/035 , F01N3/0842 , F01N3/208 , F01N13/009 , F01N2610/02 , Y02T10/24
摘要： A method for injecting ammonia into an exhaust gas stream downstream of a diesel engine includes providing an exhaust gas passageway (11) from the diesel engine to an ambient (14). The exhaust gas passageway (11) includes an NOx Slip Catalyst (NSC) 20 downstream of an NOx Particulate Filter (NPF) 18. The method includes emitting exhaust gas (EG) through the exhaust gas passageway (11), and selectively injecting ammonia (NH3) upstream of the NPF 18, upstream of the NSC (20), both upstream of the NPF and the NSC, or not injecting ammonia, depending on the temperature of the exhaust gas at the NPF and at the NSC.
摘要翻译： 将柴油喷射到柴油发动机下游的废气流中的方法包括从柴油机向环境（14）提供废气通道（11）。 废气通道（11）包括在NOx颗粒过滤器（NPF）18下游的NOx滑动催化剂（NSC）20。该方法包括通过废气通道（11）排放废气（EG），并选择性地将氨 NH3）在NPF 18上游，NSC（20）上游，NPF和NSC两个上游，或不注入氨，取决于NPF和NSC处的废气温度。
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公开(公告)号：US08940260B2
公开(公告)日：2015-01-27
申请号：US14125191
申请日：2012-04-18
CPC分类号： B01D53/92 , B01D53/90 , B01D53/9409 , B01D53/9477 , B01D53/9495 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , B01D2258/012 , F01N3/18 , F01N3/208 , F01N2610/02 , F01N2610/06 , Y02A50/2325 , Y02T10/24
摘要： An exhaust after-treatment system is described. Generally speaking, the system includes separate primary and secondary NOx reducing systems for delivering reductant (e.g. urea and ammonia) to an exhaust stream, a sensor system for determining relevant operating conditions and an electronic control module for activating the reducing systems. The two NOx reducing systems include flow control modules coupled to the electronic control module. Methods for reducing NOx in an exhaust stream are also described. Generally speaking, the methods include the steps of determining a need for NOx reduction in an exhaust stream, determining temperature of exhaust stream, and injecting at least one of a primary reductant and a secondary reductant into the exhaust stream based on the determined temperature of the exhaust stream. Typically, the primary reductant comprises urea and the secondary reductant comprises ammonia.
摘要翻译： 描述排气后处理系统。 一般来说，该系统包括用于将还原剂（例如尿素和氨）输送到排气流的分离的初级和次级NOx还原系统，用于确定相关操作条件的传感器系统和用于激活还原系统的电子控制模块。 两个NOx还原系统包括耦合到电子控制模块的流量控制模块。 还描述了用于减少废气流中的NOx的方法。 一般而言，这些方法包括以下步骤：基于所确定的温度，确定废气流中NOx还原的需要，确定废气流的温度，以及将至少一种第一还原剂和次级还原剂注入到废气流中 排气流。 通常，主还原剂包含尿素，第二还原剂包含氨。
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6.发明申请SYSTEM AND METHOD FOR MITIGATING POTENTIAL FOR FORMATION OF UREA DEPOSITS IN AN ENGINE EXHAUST SYSTEM DURING COLD AMBIENT CONDITIONS 审中-公开在冷环境条件下，在发动机排气系统中减轻潜在的尿素沉积物的系统和方法公开(公告)号：US20110131958A1
公开(公告)日：2011-06-09
申请号：US12631228
申请日：2009-12-04
CPC分类号： F01N3/2066 , F01N3/2013 , F01N2240/20 , F01N2250/02 , F01N2560/06 , F01N2570/14 , F01N2610/02 , Y02A50/2344 , Y02T10/24 , Y02T10/26
摘要： A device and method for catalytic reduction of NOx in gaseous products of a combustion process before entry into the atmosphere. The gaseous and particulate products of a combustion process flow radially through a radial flow particulate filter element (24) that is effective to trap particulate matter, and are then directed axially through a collector (26). An injector (30) introduces a reductant into an axial end of the collector for entrainment with axial flow through the collector in a direction away from the injector. Flow leaving the collector is directed through an SCR catalyst (40) where catalytic reduction of NOx occurs.
摘要翻译： 在进入大气之前，将燃烧过程的气态产物中的NOx催化还原的装置和方法。 燃烧过程的气态和颗粒产物径向地流过径向流微粒过滤元件（24），其有效地捕获颗粒物质，然后轴向地引导通过收集器（26）。 注射器（30）将还原剂引入收集器的轴向端部，以夹带轴向流动通过收集器远离注射器的方向。 离开集电器的流量被引导通过SCR催化剂（40），其中NOx的催化还原发生。
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公开(公告)号：US20130216459A1
公开(公告)日：2013-08-22
申请号：US13882927
申请日：2010-11-01
IPC分类号： B01D53/92
CPC分类号： B01D53/92 , F01N3/0226 , F01N3/0821 , F01N3/108 , F01N3/2073 , F01N13/009 , F01N2240/20 , F01N2570/18 , F01N2610/02 , Y02A50/2325 , Y02T10/20
摘要： A method fluidly coupling components of an exhaust gas treatment system to an exhaust gas system, then injecting gaseous ammonia into the gas treatment system, beginning reaction of gaseous ammonia with exhaust gas at a temperature of less than about 180° C., preferably about 150° C., and then continuing reaction of gaseous ammonia with exhaust gas during operation of the vehicle, is disclosed. The gas treatment system includes a mixing chamber for reacting gaseous ammonia with exhaust gas to reduce NOx in the exhaust gas. Other components of the system include a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), a NOx slip catalyst (NSC) canister, wherein the DOC, DPF and NSC are all fluidly coupled together and to the mixing chamber, an injection port for adding gaseous ammonia to the mixing chamber, and a solid ammonia source for supplying gaseous ammonia to the injection port.
摘要翻译： 一种将废气处理系统的部件流体耦合到废气系统，然后将气态氨注入气体处理系统中的方法，在低于约180℃，优选约150℃的温度下开始气态氨与废气的反应 ℃，然后在车辆操作期间气态氨与废气的持续反应。 气体处理系统包括用于使氨气与废气反应的混合室，以减少废气中的NOx。 该系统的其它组分包括柴油氧化催化剂（DOC），柴油微粒过滤器（DPF），NOx滑动催化剂（NSC）罐，其中DOC，DPF和NSC都流体耦合在一起并连接到混合室， 用于向混合室中加入气态氨的注入口，以及用于向注入口供应气态氨的固体氨源。
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公开(公告)号：US20140112851A1
公开(公告)日：2014-04-24
申请号：US14125191
申请日：2012-04-18
CPC分类号： B01D53/92 , B01D53/90 , B01D53/9409 , B01D53/9477 , B01D53/9495 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , B01D2258/012 , F01N3/18 , F01N3/208 , F01N2610/02 , F01N2610/06 , Y02A50/2325 , Y02T10/24
摘要： An exhaust after-treatment system is described. Generally speaking, the system includes separate primary and secondary NOx reducing systems for delivering reductant (e.g. urea and ammonia) to an exhaust stream, a sensor system for determining relevant operating conditions and an electronic control module for activating the reducing systems. The two NOx reducing systems include flow control modules coupled to the electronic control module. Methods for reducing NOx in an exhaust stream are also described. Generally speaking, the methods include the steps of determining a need for NOx reduction in an exhaust stream, determining temperature of exhaust stream, and injecting at least one of a primary reductant and a secondary reductant into the exhaust stream based on the determined temperature of the exhaust stream. Typically, the primary reductant comprises urea and the secondary reductant comprises ammonia.
摘要翻译： 描述排气后处理系统。 一般来说，该系统包括用于将还原剂（例如尿素和氨）输送到排气流的分离的初级和次级NOx还原系统，用于确定相关操作条件的传感器系统和用于激活还原系统的电子控制模块。 两个NOx还原系统包括耦合到电子控制模块的流量控制模块。 还描述了用于减少废气流中的NOx的方法。 一般而言，这些方法包括以下步骤：基于所确定的温度，确定废气流中NOx还原的需要，确定废气流的温度，以及将至少一种第一还原剂和次级还原剂注入到废气流中 排气流。 通常，主还原剂包含尿素，第二还原剂包含氨。
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公开(公告)号：US20110047968A1
公开(公告)日：2011-03-03
申请号：US12546717
申请日：2009-08-25
申请人： Shyam Santhanam , Brad J. Adelman
发明人： Shyam Santhanam , Brad J. Adelman
CPC分类号： F01N3/2033 , F01N3/103 , F01N3/2053 , F01N13/0093 , F01N2410/00 , Y02A50/2322 , Y02T10/26
摘要： A diesel exhaust after-treatment system (110, 210) for a vehicle includes a precious metal primary diesel oxidation catalyst (DOC1) and a precious metal secondary diesel oxidation catalyst (DOC2). The primary diesel oxidation catalyst (DOC1) is located on an exhaust pipe (116, 250) and in fluid communication with and between an engine (12) and an exhaust gas outlet (126, 226). The secondary diesel oxidation catalyst (DOC2) is disposed in fluid communication with the primary diesel oxidation catalyst (DOC1) on a second exhaust pipe (130, 230, 232) and in fluid communication with the engine (12). At least one valve (128, 228, 246) is disposed on the exhaust pipe (116, 216) for selectively permitting the continuous, positive flow of exhaust gas through the secondary diesel oxidation catalyst (DOC2). When the primary diesel oxidation catalyst (DOC1) has a pre-determined amount of sulfur saturation, the valve (128, 228, 246) is switched to permit the continuous, positive flow of exhaust gas through the secondary diesel oxidation catalyst (DOC2).
摘要翻译： 用于车辆的柴油机废气后处理系统（110,210）包括贵金属一级柴油氧化催化剂（DOC1）和贵金属二级柴油氧化催化剂（DOC2）。 主柴油氧化催化剂（DOC1）位于排气管（116,250）上并与发动机（12）和排气出口（126,226）流体连通并且在发动机（12）和废气出口（126,226）之间流体连通。 二次柴油氧化催化剂（DOC2）在第二排气管（130,230,232）上与主柴油机氧化催化剂（DOC1）流体连通并与发动机（12）流体连通地设置。 至少一个阀（128,228,246）设置在排气管（116,216）上，用于选择性地允许废气通过二次柴油机氧化催化剂（DOC2）的连续的正向流动。 当初级柴油氧化催化剂（DOC1）具有预定量的硫饱和时，阀（128,228,246）被切换以允许废气通过二次柴油氧化催化剂（DOC2）的连续的正向流动。
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10.发明申请PARTIAL COATING OF PLATINUM GROUP METALS ON FILTER FOR INCREASED SOOT MASS LIMIT AND REDUCED COSTS 审中-公开过滤器上的白金组合金属部分涂层增加了大量限制和降低成本公开(公告)号：US20110047992A1
公开(公告)日：2011-03-03
申请号：US12546994
申请日：2009-08-25
申请人： Brad J. Adelman , Vadim Strots , Shyam Santhanam
发明人： Brad J. Adelman , Vadim Strots , Shyam Santhanam
IPC分类号： F01N3/28
CPC分类号： F01N3/0231 , B01D53/9454 , B01D53/9472 , B01D2255/1021 , B01D2255/1023 , B01D2255/9032 , F01N3/035 , F01N3/106 , F01N13/009 , F01N13/0097 , F01N2370/02 , F01N2510/0682 , Y02T10/22
摘要： A diesel particulate filter has a thin band of washcoated filter material either on the inlet of the upstream side or the outlet of the downstream side. The washcoating is with platinum group metals (PGM), e.g., Pt and Pd added to the surface and pore structure of a DPF. The PDF should provide comparable or improved distance between active regeneration and/or should prevent HC/CO slip during active DPF regeneration.
摘要翻译： 柴油颗粒过滤器在上游侧的入口或下游侧的出口处具有薄带的涂布过滤材料。 洗涂是用铂族金属（PGM），例如添加到DPF的表面和孔结构中的Pt和Pd。 PDF应在主动再生之间提供可比较或改进的距离和/或在主动DPF再生期间防止HC / CO滑动。
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