Hydrocarbon adsorber regeneration system

    公开(公告)号:US09771845B2

    公开(公告)日:2017-09-26

    申请号:US12828505

    申请日:2010-07-01

    摘要: A regeneration system includes a first module, a mode selection module and an adsorber regeneration control (ARC) module. The first module monitors at least one of (i) a temperature of a first catalyst of a catalyst assembly in an exhaust system of an engine and (ii) an active catalyst volume of the first catalyst. The mode selection module is configured to select an adsorber regeneration mode and generates a mode signal based on the at least one of the temperature and the active catalyst volume. The ARC module at least one of activates an air pump and cranks the engine to regenerate an adsorber of the catalyst assembly while the engine is deactivated based on the mode signal.

    Arrangement for exhaust-gas aftertreatment system for an internal combustion engine and method for operating the exhaust-gas aftertreatment system arrangement
    2.
    发明授权
    Arrangement for exhaust-gas aftertreatment system for an internal combustion engine and method for operating the exhaust-gas aftertreatment system arrangement 有权
    用于内燃机的废气后处理系统的布置和用于操作排气后处理系统装置的方法

    公开(公告)号:US09540985B2

    公开(公告)日:2017-01-10

    申请号:US14297067

    申请日:2014-06-05

    IPC分类号: F01N3/00 F01N13/00 F01N3/08

    摘要: A method for operating an exhaust-gas aftertreatment system arrangement is provided. The method includes in a first operating state, flowing a substantial majority of an exhaust-gas stream from the internal combustion engine through a first NOx storage catalytic converter positioned in a main exhaust branch of an exhaust aftertreatment system arrangement and in a second operating state, flowing a substantial majority of the exhaust-gas stream through a first bypass branch branching off from the main exhaust branch upstream of the first NOx storage catalytic converter and which opens into the main exhaust branch downstream of the first NOx storage catalytic converter and regenerating the first NOx storage catalytic converter.

    摘要翻译: 提供了一种操作排气后处理系统装置的方法。 该方法包括处于第一操作状态,使来自内燃机的废气流的绝大部分流经位于排气后处理系统装置的主排气分支中的第一NOx存储催化转化器,并处于第二运行状态, 使绝大部分废气流通过从第一NOx存储催化转化器上游的主排气分支分支出的第一旁路分支,并且其通向第一NOx存储催化转化器下游的主排气分支并再生第一 NOx储存催化转化器。

    EXHAUST GAS SYSTEM WITH HC ADSORBER AND PARALLEL CATALYTIC CONVERTER, AND VEHICLE COMPRISING SUCH AN EXHAUST GAS SYSTEM
    3.
    发明申请
    EXHAUST GAS SYSTEM WITH HC ADSORBER AND PARALLEL CATALYTIC CONVERTER, AND VEHICLE COMPRISING SUCH AN EXHAUST GAS SYSTEM 有权
    具有HC吸附剂和并联催化转化器的排气系统以及包含这种排气系统的车辆

    公开(公告)号:US20140102083A1

    公开(公告)日:2014-04-17

    申请号:US14118823

    申请日:2012-04-16

    IPC分类号: F01N3/10

    摘要: The invention relates to an exhaust gas system (10) for an internal combustion engine (12), having an exhaust gas path which includes at least in sections two parallel exhaust gas lines (34, 36), namely a main line (34) and an auxiliary line (36), an adsorber (46) for reversible sorption of unburnt hydrocarbons (HC) and/or nitrogen oxides (NOx) being situated in the auxiliary line (36); having an adjusting means (48) for selectively guiding an exhaust gas flow into the main line (34) and/or into the auxiliary line (36) and having a main catalytic converter (44) situated downstream from the parallel exhaust gas lines (33, 36). An exhaust gas flow-conducting, gas-permeable element (58) is provided upstream from the adsorber (46), which separates the auxiliary line (36) from the remaining exhaust gas flow-conducting areas. In addition, the adsorber (46) may also be equipped with a particle filtering function and/or a catalytic function.

    摘要翻译: 本发明涉及一种用于内燃机(12)的排气系统(10),其具有排气路径,其至少包括两个平行排气管线(34,36),即主管线(34)和 辅助管线(36),用于可变吸附未燃烧的碳氢化合物(HC)和/或氮氧化物(NOx)的吸附器(46),其位于辅助管线(36)中; 具有用于选择性地将废气流引导到主管线(34)和/或进入辅助管线(36)并且具有位于平行排气管线(33)的下游的主催化转化器(44)的调节装置(48) ,36)。 排气导流的透气元件(58)设置在吸附器(46)的上游,其将辅助管线(36)与剩余废气导流区域分开。 此外,吸附器(46)也可以配备有颗粒过滤功能和/或催化功能。

    Exhaust component of gas exhaust line
    5.
    发明授权
    Exhaust component of gas exhaust line 有权
    排气管排气部件

    公开(公告)号:US08413428B2

    公开(公告)日:2013-04-09

    申请号:US12293084

    申请日:2007-01-31

    IPC分类号: F01N3/00

    摘要: The invention relates to an exhaust component in a gas exhaust line for gases produced by the combustion of a fuel in a heat engine. In the gas flow direction, there is a first connection to an upstream pipe carrying gases from the engine. There is also a first exhaust tube and a second exhaust tube, these two tubes being parallel and being connected to the first connection. There is a second connection to a downstream gas discharge pipe, connected to the parallel exhaust tubes. The component is characterized in that, firstly the first tube has a depolluting component, and the second tube has a silencer. The second connection is a three-way valve.

    摘要翻译: 本发明涉及一种用于通过燃烧在发动机中燃烧而产生的气体的排气管线中的排气部件。 在气体流动方向上,存在与从发动机输送气体的上游管道的第一连接。 还有第一排气管和第二排气管,这两个管并联并连接到第一连接。 连接到并联排气管的下游气体排出管有第二连接。 该部件的特征在于,首先,第一管具有去污部件,第二管具有消音器。 第二个连接是一个三通阀。

    HYBRID VEHICLE THERMAL MANAGEMENT USING A BYPASS PATH IN A CATALYTIC CONVERTER UNIT
    6.
    发明申请
    HYBRID VEHICLE THERMAL MANAGEMENT USING A BYPASS PATH IN A CATALYTIC CONVERTER UNIT 审中-公开
    混合车辆热管理使用旁路路径在催化转换器单元

    公开(公告)号:US20120204539A1

    公开(公告)日:2012-08-16

    申请号:US13024417

    申请日:2011-02-10

    IPC分类号: F01N3/00 F01N9/00

    摘要: A hybrid vehicle includes an exhaust gas treatment system having a bypass valve for directing a flow of air or exhaust gas through a bypass path or through a primary catalyst. The hybrid vehicle includes an internal combustion engine and an electric motor, each selectively engageable with a transmission to provide a drive torque. The electric motor spins the internal combustion engine when engaged to provide the drive torque, thereby creating a flow of unheated air from the internal combustion engine that flows through the exhaust gas treatment system. The bypass valve directs the flow of air through the bypass path when the engine is spinning and not fueled to prevent cooling of the primary catalyst. The bypass valve directs the flow of exhaust gas through the primary catalyst when the internal combustion engine is spinning and is being fueled, i.e., running, to treat the flow of exhaust gas.

    摘要翻译: 混合动力车辆包括排气处理系统,其具有用于引导空气或废气流通过旁通路径或通过主催化剂的旁通阀。 混合动力车辆包括内燃机和电动机,每个可选择地与变速器接合以提供驱动转矩。 电动机在接合时旋转内燃机以提供驱动扭矩,从而产生流过废气处理系统的来自内燃机的未加热空气的流动。 当发动机旋转并且不燃料时,旁通阀引导空气流通过旁路,以防止主催化剂的冷却。 当内燃机正在旋转并被燃料即运行时,旁通阀引导废气流通过主催化剂,以处理废气流。

    Method, device and computer program product for diagnosing of at least one exhaust emission control unit
    8.
    发明授权
    Method, device and computer program product for diagnosing of at least one exhaust emission control unit 有权
    用于诊断至少一个废气排放控制单元的方法,装置和计算机程序产品

    公开(公告)号:US08156728B2

    公开(公告)日:2012-04-17

    申请号:US11915406

    申请日:2005-07-07

    IPC分类号: F01N3/00

    摘要: A method, device and computer program product are provided for diagnosing of a NOx-reducing catalyzer that can be regenerated and/or of a three-way valve for directing the flow of exhaust gases into a bypass pipe, and/or of a clean-up catalyzer. All the components can be included in one and the same exhaust emission control system. The diagnosing of the NOx-reducing catalyzer and of the three-way valve is carried out by method steps comprising measurement of the drop in pressure across the NOx-reducing catalyzer. The diagnosing of the clean-up catalyzer is carried out by method steps comprising measurement of the increase in temperature in the clean-up catalyzer. In the event of reduced functionality of the NOx catalyzer, a deSOx is carried out. A fault code is generated in the event of reduced functionality of the three-way valve or of the clean-up catalyzer.

    摘要翻译: 提供了一种方法,装置和计算机程序产品,用于诊断可再生的NOx还原催化剂和/或用于将废气流引导到旁通管中的三通阀,和/或清洁 - 催化剂。 所有组件都可以包含在同一废气排放控制系统中。 NOx还原催化剂和三通阀的诊断是通过包括测量跨越NOx还原催化剂的压力降的方法步骤进行的。 清洁催化剂的诊断是通过包括测量清洁催化剂中温度升高的方法步骤进行的。 在NOx催化剂的功能降低的情况下,进行脱硫。 在三通阀或清洁催化器的功能减少的情况下,产生故障代码。

    Optimized rhodium usage in LNT SCR system
    9.
    发明授权
    Optimized rhodium usage in LNT SCR system 有权
    LNT SCR系统中优化的铑用量

    公开(公告)号:US08069654B2

    公开(公告)日:2011-12-06

    申请号:US11653745

    申请日:2007-01-16

    IPC分类号: F01N3/00

    摘要: Rhodium utilization in LNT/SCR-based exhaust after treatment systems for medium and heavy duty trucks is reduced by operating inline fuel reformers in a certain manner. The fuel processors are operated at steam reforming temperatures to produce a reformate-containing exhaust having a hydrogen to CO ratio of at least about 3:2 or at least about 3% hydrogen, This generally involves operating the fuel reformers at temperatures from about 500 to about 625° C. and with an overall fuel to air ratio from about 1.10 to about 1.40. In this manner, regeneration can be efficiently carried out while limiting the catalyst loading of the fuel processors to no more than about 1.0 grams rhodium per liter maximum displacement of the diesel engine and the catalyst loading of the LNTs to no more than about 0.50 grams rhodium per liter maximum displacement of the diesel engine.

    摘要翻译: 通过以某种方式运行直列式燃料重整器,减少了中型和重型卡车处理系统后的LNT / SCR型尾气中的铑利用。 燃料处理器在蒸汽重整温度下运行以产生具有至少约3:2或至少约3%氢的氢至CO比的重整油含量排气。这通常涉及在约500至 约625℃,总燃料空气比约为1.10至约1.40。 以这种方式,可以有效地进行再生,同时将燃料处理器的催化剂负载限制在不超过约1.0克铑/升柴油发动机的最大排量和催化剂负载量至不超过约0.50克的铑 每升最大排量的柴油发动机。