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公开(公告)号:US07845166B2
公开(公告)日:2010-12-07
申请号:US11862241
申请日:2007-09-27
IPC分类号: F01N3/10
CPC分类号: F01N3/021 , F01N3/101 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N13/0097 , F01N13/011 , F01N2240/14 , F01N2590/08 , Y02T10/22
摘要: An exhaust system for an engine with a plurality of combustion chambers. The exhaust system includes a first emission treatment device in fluid communication with at least one of the combustion chambers so as to receive exhaust therefrom. The exhaust system further includes a second emission treatment device in fluid communication with at least one other of the combustion chambers so as to receive exhaust therefrom. The second emission treatment device is also in fluid communication with a downstream end of the first emission treatment device so as to receive exhaust therefrom.
摘要翻译: 一种用于具有多个燃烧室的发动机的排气系统。 排气系统包括与至少一个燃烧室流体连通以便从其接收排气的第一排放处理装置。 排气系统还包括与至少另一个燃烧室流体连通以便从其接收排气的第二排放处理装置。 第二排放处理装置也与第一排放处理装置的下游端流体连通,从而从其排出。
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公开(公告)号:US20090084093A1
公开(公告)日:2009-04-02
申请号:US11862241
申请日:2007-09-27
IPC分类号: F01N3/10
CPC分类号: F01N3/021 , F01N3/101 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N13/0097 , F01N13/011 , F01N2240/14 , F01N2590/08 , Y02T10/22
摘要: An exhaust system for an engine with a plurality of combustion chambers. The exhaust system includes a first emission treatment device in fluid communication with at least one of the combustion chambers so as to receive exhaust therefrom. The exhaust system further includes a second emission treatment device in fluid communication with at least one other of the combustion chambers so as to receive exhaust therefrom. The second emission treatment device is also in fluid communication with a downstream end of the first emission treatment device so as to receive exhaust therefrom.
摘要翻译: 一种用于具有多个燃烧室的发动机的排气系统。 排气系统包括与至少一个燃烧室流体连通以便从其接收排气的第一排放处理装置。 排气系统还包括与至少另一个燃烧室流体连通以便从其接收排气的第二排放处理装置。 第二排放处理装置也与第一排放处理装置的下游端流体连通,从而从其排出。
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公开(公告)号:US20110289906A1
公开(公告)日:2011-12-01
申请号:US13197829
申请日:2011-08-04
CPC分类号: F01N3/025 , F01N3/035 , F01N3/106 , F01N9/002 , F01N13/009 , F01N2240/14 , F01N2560/12 , F01N2610/03 , F01N2900/1402 , F23G7/065 , F23J15/025 , F23J15/08 , Y02T10/47
摘要: A system for controlling the temperature of an exhaust stream from an engine at a location upstream from an exhaust aftertreatment apparatus includes a main exhaust passageway adapted to receive the exhaust stream from the engine. A side branch is in communication with the main exhaust passageway. A regeneration unit is positioned within the side branch for combusting a fuel and heating the exhaust flowing through the main exhaust passageway. An ion sensor is operable to output a signal indicative of the presence of fuel combustion. A controller selectively operates the regeneration unit to increase the exhaust temperature. The controller is operable to control a supply of fuel to the regeneration unit based on the ion sensor signal.
摘要翻译: 用于控制来自排气后处理装置上游的发动机的排气流的温度的系统包括适于从发动机接收废气流的主排气通道。 侧分支与主排气通道连通。 再生单元位于侧分支内,用于燃烧燃料并加热流经主排气通道的排气。 离子传感器可操作以输出指示存在燃料燃烧的信号。 控制器选择性地操作再生单元以增加排气温度。 控制器可操作以基于离子传感器信号控制对再生单元的燃料供应。
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公开(公告)号:US08381514B2
公开(公告)日:2013-02-26
申请号:US12773314
申请日:2010-05-04
CPC分类号: F01N3/206 , F01N2570/14 , F01N2610/03 , F01N2610/1406 , Y02A50/2322 , Y02A50/2344
摘要: An emissions system for reducing nitrogen oxides in engine exhaust includes an emissions catalyst having an inlet adapted to receive an exhaust from the engine. A fuel tank is adapted to provide fuel for combustion within the engine. A first injector is operable to inject fuel into the exhaust upstream of the catalyst. A second injector is operable to inject supplemental reductant from a supplemental reductant tank into the exhaust upstream of the catalyst. A controller is operable to control the first and second injectors and vary the supply of fuel and supplemental reductant into the exhaust to reduce nitrogen oxides within the exhaust.
摘要翻译: 用于减少发动机排气中的氮氧化物的排放系统包括具有适于接收来自发动机的排气的入口的排放催化剂。 燃料箱适于在发动机内提供用于燃烧的燃料。 第一注射器可操作以将燃料喷射到催化剂上游的排气中。 第二注射器可操作以将补充还原剂从补充的还原剂罐注入到催化剂上游的排气中。 控制器可操作以控制第一和第二喷射器,并且将燃料和补充还原剂的供应改变到排气中以减少排气中的氮氧化物。
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公开(公告)号:US20100269492A1
公开(公告)日:2010-10-28
申请号:US12430194
申请日:2009-04-27
CPC分类号: F01N3/0231 , F01N3/025 , F01N3/035 , F01N3/0807 , F01N3/0842 , F01N3/106 , F01N3/2066 , F01N13/009 , F01N2240/14 , F01N2610/02 , F01N2610/03 , F01N2610/04 , Y02T10/24
摘要: A diesel exhaust gas aftertreatment system (10) is provided to treat the exhaust (12) from a diesel combustion process (14), such as a diesel compression engine (16). The system (10) includes a burner (18) that selectively supplies the exhaust (12) at an elevated temperature to the rest of the system (10), a diesel particulate filter (20) connected downstream from the burner (18) to receive the exhaust (12) therefrom, and a NOx reducing device (22) connected downstream from the filter (20) to receive the exhaust therefrom.
摘要翻译: 提供柴油机废气后处理系统(10)以从诸如柴油压缩机(16)的柴油机燃烧过程(14)处理废气(12)。 系统(10)包括燃烧器(18),其将升高的温度的排气(12)选择性地供应到系统(10)的其余部分;柴油机微粒过滤器(20),其连接在燃烧器(18)的下游以接收 排气(12),以及连接在过滤器(20)的下游以从其排出的NOx还原装置(22)。
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公开(公告)号:US20080110164A1
公开(公告)日:2008-05-15
申请号:US11985221
申请日:2007-11-14
IPC分类号: F01N7/08
CPC分类号: F01N13/082 , F01N2270/02
摘要: A component for a vehicular exhaust pipe includes an upstream venturi forming portion for creating at least a partial vacuum interior to the component. A downstream diverter housing portion of the component has an inlet coupled to an outlet of the venturi portion. The diverter housing portion includes the diverter element positioned adjacent an output of the diverter housing portion for forcing axially central exhaust flow radially outward toward a wall of the diverter housing. The partial vacuum in the component device causes colder environmental ambient air to enter an inlet of the component. The diverter also creates a mixture of hot exhaust flow with the colder environmental air, resulting in a lower temperature of the exhaust gas exiting the component and substantial elimination of centrally disposed exhaust hot spots.
摘要翻译: 用于车辆排气管的部件包括用于向部件产生至少部分真空内部的上游文丘里形成部分。 部件的下游分流器容纳部分具有联接到文氏管部分的出口的入口。 分流器壳体部分包括位于分接器壳体部分的输出附近的分流器元件,用于迫使轴向中心排气流径向向外朝向分流器壳体的壁。 部件装置中的部分真空使较冷的环境空气进入部件的入口。 分流器还产生热排气与较冷的环境空气的混合物,导致排出组件的废气的温度较低,并且基本上消除了集中设置的排气热点。
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公开(公告)号:US20110283685A1
公开(公告)日:2011-11-24
申请号:US13197848
申请日:2011-08-04
申请人: Adam J. Kotrba , Gabriel Salanta , Timothy Jackson
发明人: Adam J. Kotrba , Gabriel Salanta , Timothy Jackson
IPC分类号: F01N3/18
CPC分类号: F01N3/0821 , F01N3/025 , F01N3/035 , F01N3/0842 , F01N3/106 , F01N3/2066 , F01N13/009 , F01N2240/14 , F01N2610/03 , Y02T10/24
摘要: A system for treating an exhaust stream from an engine includes a main exhaust passageway adapted to receive the exhaust stream from the engine. A side branch is in communication with the main exhaust passageway. A regeneration unit is positioned within the side branch for combusting a fuel and heating the exhaust flowing through the main exhaust passageway. A lean NOx catalyst is positioned within the main exhaust passageway downstream of the regeneration unit. A reductant injector is positioned downstream of the regeneration unit and upstream of the lean NOx catalyst to inject reductant particles into the exhaust stream. A controller operates the regeneration unit to increase the exhaust temperature as well as operates the reductant injector to reduce NOx within the lean NOx catalyst.
摘要翻译: 用于处理来自发动机的废气流的系统包括适于从发动机接收废气流的主排气通道。 侧分支与主排气通道连通。 再生单元位于侧分支内,用于燃烧燃料并加热流经主排气通道的排气。 贫NOx催化剂位于再生单元下游的主排气通道内。 还原剂喷射器位于再生单元的下游和贫NOx催化剂的上游,以将还原剂颗粒注入废气流中。 控制器操作再生单元以增加排气温度,并且操作还原剂喷射器以减少贫NOx催化剂内的NOx。
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公开(公告)号:US07913489B2
公开(公告)日:2011-03-29
申请号:US11985221
申请日:2007-11-14
IPC分类号: F01N1/00
CPC分类号: F01N13/082 , F01N2270/02
摘要: A component for a vehicular exhaust pipe includes an upstream venturi forming portion for creating at least a partial vacuum interior to the component. A downstream diverter housing portion of the component has an inlet coupled to an outlet of the venturi portion. The diverter housing portion includes the diverter element positioned adjacent an output of the diverter housing portion for forcing axially central exhaust flow radially outward toward a wall of the diverter housing. The partial vacuum in the component device causes colder environmental ambient air to enter an inlet of the component. The diverter also creates a mixture of hot exhaust flow with the colder environmental air, resulting in a lower temperature of the exhaust gas exiting the component and substantial elimination of centrally disposed exhaust hot spots.
摘要翻译: 用于车辆排气管的部件包括用于向部件产生至少部分真空内部的上游文丘里形成部分。 部件的下游分流器容纳部分具有联接到文氏管部分的出口的入口。 分流器壳体部分包括位于分接器壳体部分的输出附近的分流器元件,用于迫使轴向中心排气流径向向外朝向分流器壳体的壁。 部件装置中的部分真空使较冷的环境空气进入部件的入口。 分流器还产生热排气与较冷的环境空气的混合物,导致排出组件的废气的温度较低,并且基本上消除了集中设置的排气热点。
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公开(公告)号:US20120090304A1
公开(公告)日:2012-04-19
申请号:US12907342
申请日:2010-10-19
申请人: Adam J. Kotrba , Jeremy Popovich , Guanyu Zheng , Timothy Gardner , Argun Yetkin
发明人: Adam J. Kotrba , Jeremy Popovich , Guanyu Zheng , Timothy Gardner , Argun Yetkin
IPC分类号: F01N3/10
CPC分类号: F01N3/0211 , F01N3/103 , F01N3/2066 , F01N13/009 , F01N13/011 , F01N2410/00 , F01N2590/02 , F01N2590/08 , F01N2590/10 , Y02A50/2325 , Y02T10/20
摘要: A vehicle exhaust system for an engine having a plurality of combustion chambers includes a first emission treatment device, a second emission treatment device and a housing defining a first exhaust passageway in fluid communication with the combustion chambers and containing the first emission treatment device. A second parallel exhaust passageway is in fluid communication with the combustion chambers and contains the second emission treatment device. The first and second passageways share a common wall having a serpentine shape such that the cross-sectional area of the passageways varies along a direction of exhaust flow. The first emission treatment device is positioned at a location of increased cross-sectional area in the first passageway and the second emission treatment device is positioned at an axially offset location of increased cross-sectional area in the second passageway.
摘要翻译: 一种用于具有多个燃烧室的发动机的排气系统,包括:第一排放处理装置,第二排放处理装置和限定与燃烧室流体连通并且容纳第一排放处理装置的第一排气通道的壳体。 第二平行排气通道与燃烧室流体连通并且包含第二排放处理装置。 第一通道和第二通道共用具有蛇形形状的共同的壁,使得通道的横截面积沿着排气流的方向变化。 第一排放处理装置位于第一通道中的横截面积增加的位置,第二排放处理装置位于第二通道中横截面积增加的轴向偏移位置。
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公开(公告)号:US20110197569A1
公开(公告)日:2011-08-18
申请号:US12773314
申请日:2010-05-04
CPC分类号: F01N3/206 , F01N2570/14 , F01N2610/03 , F01N2610/1406 , Y02A50/2322 , Y02A50/2344
摘要: An emissions system for reducing nitrogen oxides in engine exhaust includes an emissions catalyst having an inlet adapted to receive an exhaust from the engine. A fuel tank is adapted to provide fuel for combustion within the engine. A first injector is operable to inject fuel into the exhaust upstream of the catalyst. A second injector is operable to inject supplemental reductant from a supplemental reductant tank into the exhaust upstream of the catalyst. A controller is operable to control the first and second injectors and vary the supply of fuel and supplemental reductant into the exhaust to reduce nitrogen oxides within the exhaust.
摘要翻译: 用于减少发动机排气中的氮氧化物的排放系统包括具有适于接收来自发动机的排气的入口的排放催化剂。 燃料箱适于在发动机内提供用于燃烧的燃料。 第一注射器可操作以将燃料喷射到催化剂上游的排气中。 第二注射器可操作以将补充还原剂从补充的还原剂罐注入到催化剂上游的排气中。 控制器可操作以控制第一和第二喷射器,并且将燃料和补充还原剂的供应改变到排气中以减少排气中的氮氧化物。
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