Method for reducing emission of nitrogen oxide in a motor vehicle having a lean burning internal combustion engine
    1.
    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
    2.
    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。

    Multifuel fuel cell system and a method for its operation
    3.
    发明授权
    Multifuel fuel cell system and a method for its operation 失效
    多燃料燃料电池系统及其运行方法

    公开(公告)号:US06713202B2

    公开(公告)日:2004-03-30

    申请号:US09796712

    申请日:2001-03-02

    IPC分类号: H01M804

    摘要: A multifuel fuel cell system includes a hydrogen production unit; at least one fuel cell; means for heating a first catalytic converter element in the hydrogen production unit to an operating temperature which can be preset; means for metering liquid fuel, air, and optionally water to the catalytic converter element to produce a synthetic gas mixture containing hydrogen or a reformate; and means for passing the synthetic gas or reformate to further components of the hydrogen production unit which are connected between the catalytic converter element and the at least one fuel cell. The fuel cell system also contains means for switching the fuel cell system between a first and a second operating mode. Separation occurs between the hydrogen production unit and the at least one fuel cell during the first operating mode, and a communicating connection occurs between the hydrogen production unit and the at least one fuel cell during the second operating mode, so that reformate can be transferred from the hydrogen production unit to the at least one fuel cell only during the second operating mode.

    摘要翻译: 多燃料燃料电池系统包括氢气生产单元; 至少一个燃料电池; 用于将氢气生产单元中的第一催化转化元件加热至可预设的工作温度的装置; 用于将液体燃料,空气和任选的水计量到催化转化器元件以产生包含氢气或重整产物的合成气体混合物的装置; 以及用于将合成气体或重整产物转移到连接在催化转化器元件和至少一个燃料电池之间的氢气产生单元的另外部件的装置。 燃料电池系统还包括用于在第一和第二操作模式之间切换燃料电池系统的装置。 在第一操作模式期间在氢气产生单元和至少一个燃料电池之间发生分离,并且在第二操作模式期间在氢气产生单元和至少一个燃料电池之间发生连通连接,使得重整产物可以从 氢气产生单元仅在第二操作模式期间连接到至少一个燃料电池。

    Method For Operating a Motor Vehicle Diesel Engine
    5.
    发明申请
    Method For Operating a Motor Vehicle Diesel Engine 有权
    运行汽车柴油发动机的方法

    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

    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。

    Method and apparatus for operating an internal combustion engine having exhaust gas turbocharging
    8.
    发明申请
    Method and apparatus for operating an internal combustion engine having exhaust gas turbocharging 审中-公开
    用于操作具有废气涡轮增压的内燃机的方法和装置

    公开(公告)号:US20070062189A1

    公开(公告)日:2007-03-22

    申请号:US11522491

    申请日:2006-09-15

    IPC分类号: F01N3/00 F02B33/44

    摘要: in a method for operating a supercharged internal combustion engine and an internal combustion engine including an exhaust gas treatment system which comprises a catalytic converter arranged close to the engine, an exhaust gas turbocharger which is arranged downstream of the catalytic converter, and a post-injection device for introducing additional fuel into the exhaust gas flow upstream of the catalytic converter, wherein the heat energy of the exhaust gas mass flow which acts on the exhaust gas turbocharger is varied by controlling the fuel quantity which is additionally introduced into the exhaust gas flow by means of the post-injection device resulting in an improvement in the response behavior of the internal combustion engine, excess energy which is generated by the exhaust gas turbocharger by means of a motor generator connected to the exhaust gas turbocharger is stored in a storage device and is returned to the motor generator for rapidly accelerating the turbocharger when an increased power output is demanded from the engine.

    摘要翻译: 在一种用于操作增压内燃机和包括排气处理系统的内燃机的方法中,该排气处理系统包括靠近发动机设置的催化转化器,布置在催化转化器下游的排气涡轮增压器和后喷射 用于将附加燃料引入到催化转化器上游的废气流中的装置,其中作用在废气涡轮增压器上的废气质量流的热能通过控制另外被引入排气流中的燃料量而变化 后喷射装置的装置导致内燃机的响应行为的改善,由排气涡轮增压器通过连接到排气涡轮增压器的电动发电机产生的过量的能量被存储在存储装置中, 返回到电动发电机,以便在加速涡轮增压器时 从发动机要求增加功率输出。

    DEVICE FOR MONITORING AN EXHAUST GAS CATALYTIC CONVERTER FOR AN INTERNAL COMBUSTION ENGINE
    10.
    发明申请
    DEVICE FOR MONITORING AN EXHAUST GAS CATALYTIC CONVERTER FOR AN INTERNAL COMBUSTION ENGINE 审中-公开
    用于监测用于内燃机的排气变换器的装置

    公开(公告)号:US20100005783A1

    公开(公告)日:2010-01-14

    申请号:US12296817

    申请日:2007-04-03

    IPC分类号: F01N11/00

    摘要: A device for monitoring an exhaust gas catalytic converter in the exhaust system of an internal combustion engine, includes a measuring apparatus that is arranged in the exhaust system in such a way that, in the greatest part of the operating range of the internal combustion engine, it assumes a temperature that is correlated with a temperature of the exhaust gas catalytic converter. The measuring apparatus has a temperature-sensitive component with a temperature-dependent characteristic component parameter that changes either abruptly at a predetermined transition temperature or temperature range, or continuously in a predetermined way as a function of the temperature. A control and evaluation unit connected to the measuring arrangement detects the characteristic component parameter and/or a change in the latter, and correlates it with an aging state of the exhaust gas catalytic converter.

    摘要翻译: 一种用于监测内燃机的排气系统中的废气催化转化器的装置,包括:排气系统中设置的排气系统的测量装置,其特征在于,在所述内燃机的工作范围的最大部分, 它假定与废气催化转化器的温度相关的温度。 该测量装置具有温度敏感性部件,该温度敏感部件具有在预定的转变温度或温度范围内突然变化的温度依赖特性成分参数,或以预定方式连续地作为温度的函数。 连接到测量装置的控制和评估单元检测特征成分参数和/或后者的变化,并将其与废气催化转化器的老化状态相关联。