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15 条记录 (耗时 0.013 秒)

    Method of operating an internal combustion engine to heat up a selective catalyst reducer
    1.
    发明授权
    Method of operating an internal combustion engine to heat up a selective catalyst reducer 有权
    操作内燃机加热选择性催化剂还原剂的方法

    公开(公告)号：US08156733B2

    公开(公告)日：2012-04-17

    申请号：US12040038

    申请日：2008-02-29

    申请人： Kevin Dean Sisken ,  Matthew Thomas Baird

    发明人： Kevin Dean Sisken ,  Matthew Thomas Baird

    IPC分类号： F01N3/00 ,  F01N3/10

    CPC分类号： F01N9/00 ,  F01N3/035 ,  F01N3/208 ,  F01N2250/02 ,  F01N2560/06 ,  Y02T10/24 ,  Y02T10/47

    摘要： In one embodiment, the present invention relates to a method to operate an internal combustion engine equipped with an Electronic Control Unit (ECU) with memory, an exhaust system including a Diesel Oxidation Catalyst (DOC), a Diesel Particulate Filter (DPF), upstream of a Selective Catalyst Reducer (SCR). A doser is in the DPF and actuated by commands from the ECU. The method includes sensors at the DPF and SCR electronically connected to the ECU to transmit data signals indicative of operating conditions at the DPF and SCR. The method includes sensing the temperature at an outlet of the DPF and an inlet at the SCR, determining whether that temperature is at least a predetermined temperature for a predetermined period of time, and introducing heat to the SCR to raise its temperature to a predetermined level for a predetermined period of time, such as light off temperature, to operate more efficiently. Heat may be introduced in the exhaust stream by engine thermal management strategies as well.

    摘要翻译： 在一个实施例中，本发明涉及一种操作配备有具有存储器的电子控制单元（ECU）的内燃机，包括柴油氧化催化剂（DOC），柴油微粒过滤器（DPF），上游 的选择性催化剂还原剂（SCR）。 加料器位于DPF中，由ECU的命令启动。 该方法包括在DPF和SCR处的电子连接到ECU的传感器，以传送指示在DPF和SCR处的操作条件的数据信号。 该方法包括检测DPF出口处的温度和SCR处的入口，确定该温度是否至少达到预定温度达预定时间段，并将热量引导到SCR以将其温度升高到预定水平 在预定的时间内，例如熄灭温度，以更有效地操作。 也可以通过发动机热管理策略在排气流中引入热量。

    Method for controlling an engine with an EGR system
    2.
    发明授权
    Method for controlling an engine with an EGR system 失效
    用EGR系统控制发动机的方法

    公开(公告)号：US06820600B1

    公开(公告)日：2004-11-23

    申请号：US10474884

    申请日：2003-10-15

    申请人： Kevin Dean Sisken ,  Xuetong Fan

    发明人： Kevin Dean Sisken ,  Xuetong Fan

    IPC分类号： F02M2507

    CPC分类号： F02D41/0072 ,  F02B29/0406 ,  F02D41/1405 ,  F02D41/18 ,  F02D2200/0411 ,  F02M26/02 ,  F02M26/23 ,  Y02T10/47

    摘要： A method for controlling an internal combustion engine (10) is provided. The engine (10) includes an exhaust gas recirculation (EGR) system (18, 20). The method includes determining an air mass flow rate through the intake manifold at a location upstream of the exhaust gas introduction, and determining an engine volumetric efficiency based on an engine speed and an intake manifold air density. An EGR flow rate is determined based on the volumetric efficiency, the intake manifold air density, an engine displacement volume, the engine speed, and the intake manifold air mass flow rate. The engine (10) is controlled based on the EGR flow rate. Preferred techniques for determining engine volumetric efficiency and EGR flow rate are also provided.

    摘要翻译： 提供了一种用于控制内燃机（10）的方法。 发动机（10）包括废气再循环（EGR）系统（18,20）。 该方法包括：在废气引入的上游位置处确定通过进气歧管的空气质量流量，以及基于发动机速度和进气歧管空气密度确定发动机容积效率。 基于体积效率，进气歧管空气密度，发动机排量，发动机转速和进气歧管空气质量流量来确定EGR流量。 基于EGR流量来控制发动机（10）。 还提供了用于确定发动机体积效率和EGR流量的优选技术。

    Apparatus and method for monitoring oxidation catalyst functionality
    6.
    发明授权
    Apparatus and method for monitoring oxidation catalyst functionality 有权
    用于监测氧化催化剂功能的装置和方法

    公开(公告)号：US08375700B2

    公开(公告)日：2013-02-19

    申请号：US12750088

    申请日：2010-03-30

    申请人： Kevin Dean Sisken ,  Yi Liu

    发明人： Kevin Dean Sisken ,  Yi Liu

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  F01N2560/021 ,  F01N2900/1616 ,  F01N2900/1621 ,  Y02T10/24

    摘要： Method and apparatus for evaluating an ammonia conversion efficiency of an ammonia oxidation (AMOX) catalyst for reducing ammonia and hydrocarbons present in an exhaust gas stream. The AMOX associated with an exhaust gas after-treatment system has a selective catalytic reduction (SCR) catalyst for reducing nitrogen oxides (NOX) present in the exhaust gas stream and a dosing system for introducing a reductant into the exhaust gas stream for reacting with the nitrogen oxides in the presence of the SCR catalyst. The AMOX catalyst is arranged downstream of the SCR catalyst.

    摘要翻译： 用于评估氨氧化（AMOX）催化剂用于还原存在于废气流中的氨和烃的氨转化效率的方法和装置。 与废气后处理系统相关联的AMOX具有用于还原废气流中存在的氮氧化物（NOX）的选择性催化还原（SCR）催化剂和用于将还原剂引入废气流中以与 在SCR催化剂存在下的氮氧化物。 AMOX催化剂布置在SCR催化剂的下游。

    Internal combustion engine with NOx adsorber
    8.
    发明授权
    Internal combustion engine with NOx adsorber 失效
    内燃机与NOx吸附器

    公开(公告)号：US06934622B2

    公开(公告)日：2005-08-23

    申请号：US10700903

    申请日：2003-11-04

    申请人： Kevin Dean Sisken

    发明人： Kevin Dean Sisken

    IPC分类号： F01N3/00 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  F01N13/04 ,  G06G7/70

    CPC分类号： F01N3/0878 ,  F01N3/0842 ,  F01N13/011 ,  F01N2610/03

    摘要： An internal combustion engine includes first and second exhaust paths, and a first NOx adsorber located in the first exhaust path. A flow control valve controls the relative amounts of exhaust gas flowing through the first and second exhaust paths. A first injector injects a reductant into the exhaust gas stream. The injector is located so as to inject the reductant at a location adjacent to the flow control valve to cause mixing of the reductant and the exhaust gas and to allow regeneration of the first NOx adsorber.

    摘要翻译： 内燃机包括位于第一排气路径中的第一和第二排气路径以及第一NO x吸附器。 流量控制阀控制流过第一和第二排气路径的废气的相对量。 第一喷射器将还原剂喷射到废气流中。 注射器被定位成在与流量控制阀相邻的位置处注入还原剂，以引起还原剂和废气的混合并允许第一NO x吸附剂的再生。

    METHOD AND SYSTEM TO DETERMINE THE EFFICIENCY OF A DIESEL OXIDATION CATALYST
    9.
    发明申请
    METHOD AND SYSTEM TO DETERMINE THE EFFICIENCY OF A DIESEL OXIDATION CATALYST 审中-公开
    测定柴油氧化催化剂效率的方法和系统

    公开(公告)号：US20100050757A1

    公开(公告)日：2010-03-04

    申请号：US12199882

    申请日：2008-08-28

    申请人： Yi Liu ,  Kevin Dean Sisken

    发明人： Yi Liu ,  Kevin Dean Sisken

    IPC分类号： G01M15/04

    CPC分类号： F01N11/002 ,  F01N3/0253 ,  F01N3/106 ,  F01N13/0097 ,  F01N2430/085 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/03 ,  F01N2900/1602 ,  F02B37/00 ,  Y02T10/47

    摘要： A method for determining the efficiency of a diesel oxidation catalyst (DOC) having an inlet and an outlet for the flow of an exhaust gas stream in an exhaust system used in conjunction with an electronic controlled internal combustion engine equipped with an Electronic Control Unit (ECU) having memory, comprising:determining temperature of the exhaust gas stream at the DOC inlet;determining temperature of the exhaust gas stream at the DOC outlet;determining the energy released from the DOC; andcomparing an actual change in temperature of the DOC out to a virtual temperature of the DOC out to determine whether the combustion efficiency of the DOC is below a predetermined value.

    摘要翻译： 一种用于确定具有用于与配备有电子控制单元（ECU）的电子控制内燃机一起使用的排气系统中的排气流的入口和出口的柴油氧化催化剂（DOC）的效率的方法 ），包括：确定所述DOC入口处的废气流的温度; 确定DOC出口处的废气流的温度; 确定从DOC释放的能量; 并将DOC的实际温度变化与DOC的虚拟温度进行比较，以确定DOC的燃烧效率是否低于预定值。