Method for the operation of an internal combustion engine comprising an emission control system that includes an SCR catalyst
    1.
    发明授权
    Method for the operation of an internal combustion engine comprising an emission control system that includes an SCR catalyst 有权
    一种内燃机的运转方法,其特征在于,具备包含SCR催化剂的排放控制系统

    公开(公告)号:US08498798B2

    公开(公告)日:2013-07-30

    申请号:US13148155

    申请日:2010-01-26

    IPC分类号: F02D41/14 F02D41/04

    摘要: A method for operating an internal combustion engine comprising an exhaust gas cleaning system that includes a SCR catalyst. In conjunction with a cold start and/or a warm-up of the internal combustion engine, the internal combustion engine is operated using a cold start engine operation method having predefineable values for predefineable operating parameters of the internal combustion engine. An amount of nitrogen oxides stored in the SCR catalyst is estimated, and the cold start engine operation method is activated when the estimation indicates that the nitrogen oxide storage amount exceeds a predefineable nitrogen oxide storage amount limit value.

    摘要翻译: 一种用于操作内燃机的方法,其包括包括SCR催化剂的废气净化系统。 结合内燃机的冷启动和/或预热,内燃机使用具有用于内燃机的可预定操作参数的可预定值的冷启动发动机运行方法来操作。 估计存储在SCR催化剂中的氮氧化物的量,并且当估计表明氮氧化物存储量超过可预定的氮氧化物存储量限制值时,启动冷启动发动机运行方法。

    Method for operating an internal combustion engine with an emission control system
    3.
    发明授权
    Method for operating an internal combustion engine with an emission control system 有权
    用排放控制系统操作内燃机的方法

    公开(公告)号:US09322351B2

    公开(公告)日:2016-04-26

    申请号:US13148060

    申请日:2010-01-26

    摘要: A method for operating an internal combustion engine comprising an emission control system that includes at least one catalytic and/or filter-effective emission control component. In conjunction with a cold start and/or a warm-up of the internal combustion engine, the internal combustion engine is operated using a cold start engine operation process having predefined values for predefined operating parameters of the internal combustion engine. An amount of hydrocarbons (HC) stored in one or more of the at least one emission control component is estimated, and the cold start engine operation process is activated when the estimation indicates that the amount of stored HC exceeds a predefined maximum amount of stored HC.

    摘要翻译: 一种用于操作内燃机的方法,其包括排放控制系统,其包括至少一个催化和/或过滤器有效的排放控制组件。 结合内燃机的冷启动和/或预热,使用具有用于内燃机的预定义操作参数的预定值的冷启动发动机操作过程来操作内燃机。 估计存储在所述至少一个排放控制部件中的一个或多个中的碳氢化合物(HC)的量,并且当所述估计指示存储的HC的量超过预定的最大量的存储的HC时,启动冷启动引擎操作处理 。

    Method for Operating an Internal Combustion Engine with an Emission Control System
    4.
    发明申请
    Method for Operating an Internal Combustion Engine with an Emission Control System 有权
    使用排放控制系统操作内燃机的方法

    公开(公告)号:US20120004833A1

    公开(公告)日:2012-01-05

    申请号:US13148060

    申请日:2010-01-26

    IPC分类号: F02D28/00 F01N3/18 F02D41/30

    摘要: A method for operating an internal combustion engine comprising an emission control system that includes at least one catalytic and/or filter-effective emission control component. In conjunction with a cold start and/or a warm-up of the internal combustion engine, the internal combustion engine is operated using a cold start engine operation process having predefined values for predefined operating parameters of the internal combustion engine. An amount of hydrocarbons (HC) stored in one or more of the at least one emission control component is estimated, and the cold start engine operation process is activated when the estimation indicates that the amount of stored HC exceeds a predefined maximum amount of stored HC.

    摘要翻译: 一种用于操作内燃机的方法,其包括排放控制系统,其包括至少一个催化和/或过滤器有效的排放控制组件。 结合内燃机的冷启动和/或预热,使用具有用于内燃机的预定义操作参数的预定值的冷启动发动机操作过程来操作内燃机。 估计存储在所述至少一个排放控制部件中的一个或多个中的碳氢化合物(HC)的量,并且当所述估计指示存储的HC的量超过预定的最大量的存储的HC时,启动冷启动引擎操作处理 。

    Method for reducing emission of nitrogen oxide in a motor vehicle having a lean burning internal combustion engine
    5.
    发明授权
    Method for reducing emission of nitrogen oxide in a motor vehicle having a lean burning internal combustion engine 有权
    具有稀燃内燃机的机动车辆中的氮氧化物排放的方法

    公开(公告)号:US08806851B2

    公开(公告)日:2014-08-19

    申请号:US12680338

    申请日:2008-09-09

    IPC分类号: F01N3/00

    摘要: In a method for reducing the emission of nitrogen dioxide in a motor vehicle having an exhaust gas purification system having an SCR catalytic converter with adsorption centers for nitrogen oxides, an exhaust gas enriched with ammonia is supplied to the SCR catalytic converter above an operating temperature. Below the operating temperature, the exhaust gas supplied to the SCR catalytic converter is enriched with a material such that an adsorption of nitrogen oxides is inhibited at corresponding adsorption centers of the SCR catalytic converter. In order to reduce the overall NOx emissions below a first, predeterminable amount, an exhaust gas enriched with ammonia is supplied to the SCR catalytic converter and the NO2 portion of the total NOx emissions is reduced below a second, predeterminable amount in that NO2 is converted with hydrocarbons stored in the SCR catalytic converter.

    摘要翻译: 在具有具有SCR催化转化器的排气净化系统的具有氮氧化物吸附中心的机动车辆的二氧化氮排放的方法中,将富含氨的废气在工作温度以上供给SCR催化剂。 低于工作温度,供应给SCR催化转化器的废气富含一种材料,使得在SCR催化转化器的相应吸附中心抑制氮氧化物的吸附。 为了将总体NOx排放量降低到低于第一可预定量的条件下,向SCR催化转化器供给富含氨的废气,并且将总NO x排放的NO 2部分降低到可转换的NO2以下的可预定量 碳氢化合物储存在SCR催化转化器中。

    Method for Reducing Emission of Nitrogen Oxide in a Motor Vehicle Having a Lean Burning Internal Combustion Engine
    6.
    发明申请
    Method for Reducing Emission of Nitrogen Oxide in a Motor Vehicle Having a Lean Burning Internal Combustion Engine 有权
    具有精益燃烧内燃机的机动车辆中减少氮氧化物排放的方法

    公开(公告)号:US20110005199A1

    公开(公告)日:2011-01-13

    申请号:US12680338

    申请日:2008-09-09

    IPC分类号: F01N3/00

    摘要: In a method for reducing the emission of nitrogen dioxide in a motor vehicle having an exhaust gas purification system having an SCR catalytic converter with adsorption centers for nitrogen oxides, an exhaust gas enriched with ammonia is supplied to the SCR catalytic converter above an operating temperature. Below the operating temperature, the exhaust gas supplied to the SCR catalytic converter is enriched with a material such that an adsorption of nitrogen oxides is inhibited at corresponding adsorption centers of the SCR catalytic converter. In order to reduce the overall NOx emissions below a first, predeterminable amount, an exhaust gas enriched with ammonia is supplied to the SCR catalytic converter and the NO2 portion of the total NOx emissions is reduced below a second, predeterminable amount in that NO2 is converted with hydrocarbons stored in the SCR catalytic converter.

    摘要翻译: 在具有具有SCR催化转化器的排气净化系统的具有氮氧化物吸附中心的机动车辆的二氧化氮排放的方法中,将富含氨的废气在工作温度以上供给SCR催化剂。 低于工作温度,供应给SCR催化转化器的废气富含一种材料,使得在SCR催化转化器的相应吸附中心抑制氮氧化物的吸附。 为了将总体NOx排放量降低到低于第一可预定量的条件下,向SCR催化转化器供给富含氨的废气,并且将总NO x排放的NO 2部分降低到可转换的NO2以下的可预定量 碳氢化合物储存在SCR催化转化器中。