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公开(公告)号：US09157356B2
公开(公告)日：2015-10-13
申请号：US14115695
申请日：2011-12-09
IPC分类号： F01N3/00 , F01N3/20 , F01N3/023 , F01N3/30 , F01N9/00 , F02D41/00 , F02D41/02 , F02M25/07 , F01N13/00 , F02B29/04 , F02M35/10
CPC分类号： F01N3/2066 , F01N3/023 , F01N3/30 , F01N9/002 , F01N13/009 , F01N2430/06 , F02B29/0418 , F02D41/0055 , F02D41/029 , F02M26/08 , F02M26/15 , F02M26/24 , F02M26/35 , F02M35/1038 , Y02A50/2324 , Y02A50/2325 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： A method for operating a motor vehicle diesel engine having an exhaust emission control system is provided. The emission control system includes an oxidation catalytic converter, a particle filter, and an SCR catalytic converter, in which the exhaust gas that is discharged from the diesel engine is passed through the oxidation catalytic converter before passing through the particle filter and the SCR catalytic converter. A regeneration of the particle filter with thermal soot burn-off is occasionally carried out, during which the diesel engine is operated at an air-fuel ratio having a lambda value (λ) of at least approximately 1.0, and air is added to the exhaust gas after it exits the oxidation catalytic converter and before it enters the particle filter air, so that soot deposited on the particle filter is burnt-off.
摘要翻译： 提供一种具有废气排放控制系统的机动车用柴油发动机的运转方法。 排放控制系统包括氧化催化转化器，颗粒过滤器和SCR催化转化器，其中从柴油发动机排出的废气在通过颗粒过滤器和SCR催化转化器之前通过氧化催化转化器 。 偶尔进行具有热烟灰燃烧的颗粒过滤器的再生，在此期间柴油发动机以λ值（λ）至少约为1.0的空燃比操作，并且将空气添加到排气 气体在其离开氧化催化转化器之后并且在其进入颗粒过滤器空气之前，使得沉积在颗粒过滤器上的烟灰被烧掉。
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公开(公告)号：US09458799B2
公开(公告)日：2016-10-04
申请号：US13883464
申请日：2011-10-18
IPC分类号： F01N3/02 , F01N3/10 , F02B29/00 , F02B29/04 , F02D41/00 , F02D41/02 , F02M25/07 , F01N3/023 , F01N3/035 , F02B37/013 , F02B37/00 , F01N13/00 , F01N3/20
CPC分类号： F02M26/08 , F01N3/023 , F01N3/0231 , F01N3/035 , F01N3/103 , F01N3/2066 , F01N13/009 , F01N2240/36 , F01N2510/06 , F01N2550/02 , F01N2610/02 , F02B29/00 , F02B29/0418 , F02B37/004 , F02B37/013 , F02D41/0007 , F02D41/0055 , F02D41/0235 , F02M26/00 , F02M26/15 , F02M26/24 , F02M26/35 , F02M26/38 , Y02A50/2325 , Y02T10/144 , Y02T10/146 , Y02T10/24 , Y02T10/47
摘要： A method for operating a motor vehicle internal combustion engine that has an exhaust tract with an exhaust gas purification unit acting catalytically and/or by filtration with which combustion air supplemented by exhaust gas diverging from the exhaust tract is fed to the combustion chambers of the internal combustion engine by exhaust gas branching off from the exhaust tract at a total exhaust gas recirculation rate. The total exhaust gas recirculation rate has a low-pressure proportion diverging downstream from the exhaust gas purification unit and a high-pressure proportion diverging upstream from an exhaust gas turbocharger turbine arranged in the exhaust tract. An essentially decreasing low pressure proportion is set with at least approximately the same operating points of the internal combustion engine with an increasing operating period of the exhaust gas purification unit.
摘要翻译： 一种用于操作机动车辆内燃机的方法，该汽车内燃机具有排气净化单元，其具有催化作用和/或通过过滤进行作用，所述排气净化单元通过其被从排气道分流的排气补充的燃烧空气供给到内部燃烧室 内燃机通过废气以总废气再循环速率从排气道分支出。 总废气再循环率具有从排气净化单元向下游扩散的低压比例，以及布置在排气道中的排气涡轮增压器涡轮上游扩散的高压比。 随着废气净化单元的运行周期的增加，基本上降低的低压比例被设定为内燃机的至少大致相同的操作点。
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公开(公告)号：US20150316004A1
公开(公告)日：2015-11-05
申请号：US13883464
申请日：2011-10-18
申请人： Ortwin BALTHES
发明人： Ortwin BALTHES
CPC分类号： F02M26/08 , F01N3/023 , F01N3/0231 , F01N3/035 , F01N3/103 , F01N3/2066 , F01N13/009 , F01N2240/36 , F01N2510/06 , F01N2550/02 , F01N2610/02 , F02B29/00 , F02B29/0418 , F02B37/004 , F02B37/013 , F02D41/0007 , F02D41/0055 , F02D41/0235 , F02M26/00 , F02M26/15 , F02M26/24 , F02M26/35 , F02M26/38 , Y02A50/2325 , Y02T10/144 , Y02T10/146 , Y02T10/24 , Y02T10/47
摘要： A method for operating a motor vehicle internal combustion engine that has an exhaust tract with an exhaust gas purification unit acting catalytically and/or by filtration with which combustion air supplemented by exhaust gas diverging from the exhaust tract is fed to the combustion chambers of the internal combustion engine by exhaust gas branching off from the exhaust tract at a total exhaust gas recirculation rate. The total exhaust gas recirculation rate has a low-pressure proportion diverging downstream from the exhaust gas purification unit and a high-pressure proportion diverging upstream from an exhaust gas turbocharger turbine arranged in the exhaust tract. An essentially decreasing low pressure proportion is set with at least approximately the same operating points of the internal combustion engine with an increasing operating period of the exhaust gas purification unit.
摘要翻译： 一种用于操作机动车辆内燃机的方法，该汽车内燃机具有排气净化单元，其具有催化作用和/或通过过滤进行作用，所述排气净化单元通过其被从排气道分流的排气补充的燃烧空气供给到内部燃烧室 内燃机通过废气以总废气再循环速率从排气道分支出。 总废气再循环率具有从排气净化单元向下游扩散的低压比例，以及布置在排气道中的排气涡轮增压器涡轮上游扩散的高压比。 随着废气净化单元的运行周期的增加，基本上降低的低压比例被设定为内燃机的至少大致相同的操作点。
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4.发明申请Operating Method for a Motor Vehicle Diesel Engine Having an Exhaust Emission Control System 审中-公开具有排气排放控制系统的汽车柴油发动机的操作方法公开(公告)号：US20140041367A1
公开(公告)日：2014-02-13
申请号：US14112819
申请日：2011-12-07
IPC分类号： F01N3/10
CPC分类号： F01N3/10 , F01N3/035 , F01N3/101 , F01N3/2013 , F01N3/208 , F01N13/009 , F01N13/0097 , F01N2240/16 , F01N2430/085 , F01N2560/026 , F01N2610/02 , F01N2900/0412 , F01N2900/1402 , F02B29/0418 , F02B37/013 , F02D23/02 , F02D41/0235 , F02D41/024 , F02D41/029 , F02D41/1461 , F02D2200/0802 , F02M26/05 , F02M26/06 , F02M26/08 , F02M26/10 , F02M26/15 , F02M26/24 , Y02A50/2324 , Y02A50/2325 , Y02T10/144 , Y02T10/146 , Y02T10/22 , Y02T10/24 , Y02T10/26
摘要： An operating method is provided for a motor vehicle diesel engine having an exhaust emission control system that includes a three-way catalytic converter and an SCR catalytic converter situated one behind the other in the flow direction of the exhaust gas. The diesel engine is operated, at least intermittently, with an air-fuel ratio of approximately λ=1.0 in a first operating range in which the SCR catalytic converter falls below a predefinable minimum temperature and with excess air that is typical for normal diesel engine operation in a second operating range in which the SCR catalytic converter exceeds the predefinable minimum temperature. An output signal of an exhaust gas sensor situated downstream from the three-way catalytic converter and which is correlated with a NOx concentration of the exhaust gas is used to set the air-fuel ratio in the first operating range.
摘要翻译： 本发明提供了一种具有废气排放控制系统的机动车柴油发动机的操作方法，所述排气排放控制系统包括在排气的流动方向上一个接一个地设置的三元催化转化器和SCR催化转化器。 柴油发动机在SCR催化转化器低于可预定的最低温度的第一工作范围内，至少间歇地运行，其空燃比约为λ= 1.0，并且具有通常的柴油发动机运行的典型的过量空气 在SCR催化转化器超过可预定的最低温度的第二工作范围内。 使用位于三元催化转化器下游并与废气的NOx浓度相关联的排气传感器的输出信号，将空燃比设定在第一运行范围内。
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公开(公告)号：US20140109554A1
公开(公告)日：2014-04-24
申请号：US14115695
申请日：2011-12-09
IPC分类号： F01N3/20
CPC分类号： F01N3/2066 , F01N3/023 , F01N3/30 , F01N9/002 , F01N13/009 , F01N2430/06 , F02B29/0418 , F02D41/0055 , F02D41/029 , F02M26/08 , F02M26/15 , F02M26/24 , F02M26/35 , F02M35/1038 , Y02A50/2324 , Y02A50/2325 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： A method for operating a motor vehicle diesel engine having an exhaust emission control system is provided. The emission control system includes an oxidation catalytic converter, a particle filter, and an SCR catalytic converter, in which the exhaust gas that is discharged from the diesel engine is passed through the oxidation catalytic converter before passing through the particle filter and the SCR catalytic converter. A regeneration of the particle filter with thermal soot burn-off is occasionally carried out, during which the diesel engine is operated at an air-fuel ratio having a lambda value (λ) of at least approximately 1.0, and air is added to the exhaust gas after it exits the oxidation catalytic converter and before it enters the particle filter air, so that soot deposited on the particle filter is burnt-off.
摘要翻译： 提供一种具有废气排放控制系统的机动车用柴油发动机的运转方法。 排放控制系统包括氧化催化转化器，颗粒过滤器和SCR催化转化器，其中从柴油发动机排出的废气在通过颗粒过滤器和SCR催化转化器之前通过氧化催化转化器 。 偶尔进行具有热烟灰燃烧的颗粒过滤器的再生，在此期间柴油发动机以λ值（λ）至少约为1.0的空燃比操作，并且将空气添加到排气 气体在其离开氧化催化转化器之后并且在其进入颗粒过滤器空气之前，使得沉积在颗粒过滤器上的烟灰被烧掉。
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