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    EXHAUST SYSTEM HAVING DOC REGENERATION STRATEGY
    1.
    发明申请
    EXHAUST SYSTEM HAVING DOC REGENERATION STRATEGY 审中-公开
    具有DOC再生策略的排气系统

    公开(公告)号：US20120144802A1

    公开(公告)日：2012-06-14

    申请号：US12965525

    申请日：2010-12-10

    申请人： James J. DRISCOLL ,  Duncan J. Arrowsmith

    发明人： James J. DRISCOLL ,  Duncan J. Arrowsmith

    IPC分类号： F01N3/20 ,  F01N3/023 ,  F01N3/18

    CPC分类号： F01N9/00 ,  F01N3/0253 ,  F01N3/103 ,  F01N3/2033 ,  F01N2610/02 ,  F01N2610/03 ,  Y02T10/26 ,  Y02T10/47

    摘要： An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage configured to receive a flow of exhaust from the combustion engine, and an oxidation catalyst disposed within the exhaust passage. The exhaust system may also have a fuel injector configured to selectively inject fuel into the exhaust at a location upstream of the oxidation catalyst, a temperature sensor configured to generate a signal indicative of a temperature of exhaust flowing through the exhaust passage, and a controller in communication with the fuel injector and the temperature sensor. The controller may be configured to make a determination based on the signal that an oxide layer has formed on the oxidation catalyst, and to regulate operation of the fuel injector to inject fuel and reduce the oxide layer based on the determination.

    摘要翻译： 公开了一种用于内燃机的排气系统。 排气系统可以具有被配置为接收来自内燃机的排气流的排气通道和设置在排气通道内的氧化催化剂。 排气系统还可以具有燃料喷射器，燃料喷射器配置成在氧化催化剂上游的位置选择性地将燃料喷射到排气中，温度传感器被配置为产生指示流过排气通道的排气的温度的信号，以及控制器 与燃油喷射器和温度传感器的通讯。 控制器可以被配置为基于在氧化催化剂上形成氧化物层的信号进行确定，并且基于该确定来调节燃料喷射器的喷射燃料和减少氧化物层的操作。

    Exhaust system implementing SCR and EGR
    2.
    发明授权
    Exhaust system implementing SCR and EGR 有权
    排气系统实施SCR和EGR

    公开(公告)号：US08151558B2

    公开(公告)日：2012-04-10

    申请号：US12010958

    申请日：2008-01-31

    申请人： Wade J. Robel ,  James J. Driscoll

    发明人： Wade J. Robel ,  James J. Driscoll

    IPC分类号： F02M25/06 ,  F01N3/00 ,  F01N3/10

    CPC分类号： F02M26/15 ,  F01N3/0821 ,  F01N2570/18 ,  F01N2610/02 ,  F02B37/00

    摘要： An exhaust system for use with an engine is disclosed. The exhaust system may have an exhaust passageway, a reduction catalyst located within the exhaust passageway, and a particulate filter located within the exhaust passageway upstream of the reduction catalyst. The exhaust system may also have an oxidation catalyst located within the exhaust passageway upstream of the reduction catalyst to provide a desired ratio of NO:NO2 to the reduction catalyst, and an exhaust gas recirculation loop. The exhaust gas recirculation loop may be situated to receive exhaust from the exhaust passageway at a location upstream of the oxidation catalyst and downstream of the particulate filter.

    摘要翻译： 公开了一种用于发动机的排气系统。 排气系统可以具有排气通道，位于排气通道内的还原催化剂和位于还原催化剂上游的排气通道内的微粒过滤器。 排气系统还可以具有位于还原催化剂上游的排气通道内的氧化催化剂，以提供NO：NO 2与还原催化剂的期望比例和排气再循环回路。 废气再循环回路可以被定位成在氧化催化剂的上游位置和微粒过滤器的下游处接收来自排气通道的排气。

    System implementing low-reductant engine operation mode
    4.
    发明申请
    System implementing low-reductant engine operation mode 有权
    系统实现低还原发动机运行模式

    公开(公告)号：US20080098726A1

    公开(公告)日：2008-05-01

    申请号：US11589822

    申请日：2006-10-31

    申请人： George E. Donaldson ,  James J. Driscoll

    发明人： George E. Donaldson ,  James J. Driscoll

    IPC分类号： F01N3/00

    CPC分类号： F02D41/401 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2900/08 ,  F01N2900/1806 ,  F01N2900/1814 ,  F02D41/0235 ,  F02D41/2422 ,  F02D2250/36 ,  G01F9/001 ,  G01F23/30 ,  Y02T10/24 ,  Y02T10/44

    摘要： A control system for a power unit having a supply of fuel and a supply of reductant is disclosed. The control system may have a first sensor associated with the supply of fuel to generate a signal indicative of a quantity of fuel remaining. The control system may also have a second sensor associated with the supply of reductant to generate a signal indicative of a quantity of the reductant remaining. The control system may further have a controller in communication with the first and second sensors. The controller may be configured to affect operation of the power unit such that the remaining fuel is consumed before consumption of the remaining reductant.

    摘要翻译： 公开了一种具有燃料供应和还原剂供应的动力单元的控制系统。 控制系统可以具有与燃料供应相关联的第一传感器以产生指示剩余燃料量的信号。 控制系统还可以具有与还原剂供应相关联的第二传感器以产生指示残留还原剂的量的信号。 控制系统还可以具有与第一和第二传感器通信的控制器。 控制器可以被配置为影响动力单元的操作，使得剩余的燃料在消耗剩余的还原剂之前消耗。

    Exhaust treatment system
    7.
    发明授权
    Exhaust treatment system 有权
    排气处理系统

    公开(公告)号：US07762060B2

    公开(公告)日：2010-07-27

    申请号：US11412883

    申请日：2006-04-28

    申请人： William L. Easley, Jr. ,  Maarten Verkiel ,  Aaron D. Strauser ,  James J. Driscoll ,  Wade J. Robel

    发明人： William L. Easley, Jr. ,  Maarten Verkiel ,  Aaron D. Strauser ,  James J. Driscoll ,  Wade J. Robel

    IPC分类号： F01N3/00

    CPC分类号： F01N3/027 ,  F01N3/025 ,  F01N3/0821 ,  F01N13/009 ,  F01N2250/02 ,  F01N2430/00

    摘要： An exhaust treatment system is provided. The system may include a particulate trap configured to remove one or more types of particulate matter from an exhaust flow of an engine. The system may also include a catalyst configured to chemically alter at least one component of the exhaust flow. Further, the system may include an exhaust conduit configured to direct the exhaust flow from the engine to the particulate trap and the catalyst. In addition, the exhaust treatment system may include a heating system configured to maintain the temperature of the catalyst above a first predetermined temperature. The heating system may also be configured to periodically raise the temperature of the particulate trap above a higher, second predetermined temperature to thereby effectuate a regeneration of the particulate trap by oxidizing particulate matter accumulated in the particulate trap.

    摘要翻译： 提供排气处理系统。 该系统可以包括构造成从发动机的排气流中去除一种或多种类型的颗粒物质的微粒捕集器。 该系统还可以包括配置成化学改变排气流的至少一个组分的催化剂。 此外，该系统可以包括排气导管，该排气导管构造成将排气流从发动机引导到颗粒捕集器和催化剂。 此外，排气处理系统可以包括被配置为将催化剂的温度保持在第一预定温度以上的加热系统。 加热系统还可以被配置为周期性地将颗粒捕集器的温度升高到更高的第二预定温度以上，从而通过氧化颗粒捕集器中积聚的颗粒物质来实现颗粒捕集器的再生。

    Exhaust system having thermophoretic particulate agglomerator
    8.
    发明申请
    Exhaust system having thermophoretic particulate agglomerator 有权
    排气系统具有热溶胶颗粒聚结器

    公开(公告)号：US20090293463A1

    公开(公告)日：2009-12-03

    申请号：US12153947

    申请日：2008-05-28

    申请人： James J. Driscoll ,  Wade J. Robel ,  Praveen S. Chavannavar

    发明人： James J. Driscoll ,  Wade J. Robel ,  Praveen S. Chavannavar

    IPC分类号： F01N3/02

    CPC分类号： F01N3/043 ,  F01N3/01 ,  F01N3/0275 ,  F01N3/037 ,  F01N2240/06 ,  F01N2250/10 ,  F01N2260/02 ,  Y02T10/20

    摘要： An exhaust system for use with a combustion engine is disclosed. The exhaust system may have a passage connected to receive exhaust from the combustion engine, and a cooling device located external to the passage to create a thermal gradient across a flow area of the passage that causes particulates within the exhaust to agglomerate on a wall of the passage. The exhaust system may also have a filtration device located to separate agglomerated particulates from the exhaust.

    摘要翻译： 公开了一种用于内燃机的排气系统。 排气系统可以具有连接以接收来自内燃发动机的排气的通道，以及位于通道外部的冷却装置，以在通道的流动区域上产生热梯度，其导致排气内的颗粒聚集在所述通道的壁上 通道。 排气系统还可以具有一个过滤装置，用于将排出的颗粒与排气分开。