Exhaust system for a vehicle having a “stop-start” compression ignition engine
    24.
    发明授权
    Exhaust system for a vehicle having a “stop-start” compression ignition engine 有权
    具有“停止启动”压燃式发动机的车辆排气系统

    公开(公告)号:US09273583B2

    公开(公告)日:2016-03-01

    申请号:US12974556

    申请日:2010-12-21

    摘要: A vehicle comprises a compression ignition engine provided with engine management means and having a catalyst for exhaust gas aftertreatment, wherein the engine management means is configured, when in use, to detect idle conditions and upon determining that idle conditions exist, stops the engine entirely, wherein the catalyst comprises a honeycomb substrate monolith coated with a catalytic washcoat comprising one or more precious metal, which catalytic washcoat being arranged between a first, upstream washcoat zone and a second, downstream washcoat zone, wherein a thermal mass in the first washcoat zone is different from a thermal mass in the second washcoat zone and wherein a washcoat layer in the first, upstream washcoat zone is substantially contiguous with a washcoat layer in the second, downstream washcoat zone.

    摘要翻译: 车辆包括具有发动机管理装置并具有用于排气后处理的催化剂的压缩点火式发动机,其中,在使用时,所述发动机管理装置被配置为检测空转状态,并且在确定存在空转状况时,完全停止发动机, 其中所述催化剂包括涂覆有包含一种或多种贵金属的催化修补基面涂层的蜂窝基体整料,所述催化修补基面涂层布置在第一上游涂层区和第二下游修补基面涂层区之间,其中第一修补基面涂层区中的热质量为 不同于第二洗涂层区域中的热质量,并且其中第一上游修补基面涂层区域中的修补基面涂层基本上与第二下游修补基面涂层区域中的修补基面涂层相邻。

    Exhaust system comprising zoned oxidation catalyst
    26.
    发明授权
    Exhaust system comprising zoned oxidation catalyst 有权
    排气系统包括分区氧化催化剂

    公开(公告)号:US07998424B2

    公开(公告)日:2011-08-16

    申请号:US12160068

    申请日:2007-01-03

    IPC分类号: B01D53/94 F01N3/28

    摘要: An exhaust system for a lean-burn internal combustion engine comprises a catalyst for oxidising carbon monoxide and hydrocarbons comprising a flow-through substrate monolith comprising a first platinum group metal (PGM) zone containing at least one PGM supported on a surface area-increasing washcoat component, a second PGM zone containing at least one PGM supported on a surface area-increasing washcoat component, a third PGM zone containing at least one PGM supported on a surface area-increasing washcoat component wherein both the PGM loading in the first PGM zone and the PGM loading in the third PGM zone is greater than the PGM loading in the second PGM zone and wherein the first PGM zone comprises a washcoat loading that is less than a washcoat loading of the third PGM zone.

    摘要翻译: 用于贫燃内燃机的排气系统包括用于氧化一氧化碳和烃的催化剂,其包括流过基材整料,其包含第一铂族金属(PGM)区,该第一铂族金属(PGM)区含有至少一个PGM, 包含至少一个PGM的第二PGM区域,所述第二PGM区域包含在增加表面积的修补基面涂层组分上的载体,包含至少一个PGM的第三PGM区域,所述第三PGM区域支持在增加表面积的修补基面涂层组分上,其中PGM负载在第一PGM区域和 第三PGM区中的PGM负载大于第二PGM区中的PGM负载,并且其中第一PGM区包含小于第三PGM区的修补基面涂层负载的修补基面涂层负载。

    Exhaust System Comprising Zoned Oxidation Catalyst
    28.
    发明申请
    Exhaust System Comprising Zoned Oxidation Catalyst 有权
    排气系统包括分区氧化催化剂

    公开(公告)号:US20090217652A1

    公开(公告)日:2009-09-03

    申请号:US12160068

    申请日:2007-01-03

    IPC分类号: F01N3/28

    摘要: An exhaust system for a lean-burn internal combustion engine comprises a catalyst for oxidising carbon monoxide and hydrocarbons comprising a flow-through substrate monolith comprising a first platinum group metal (PGM) zone containing at least one PGM supported on a surface area-increasing washcoat component, a second PGM zone containing at least one PGM supported on a surface area-increasing washcoat component, a third PGM zone containing at least one PGM supported on a surface area-increasing washcoat component wherein both the PGM loading in the first PGM zone and the PGM loading in the third PGM zone is greater than the PGM loading in the second PGM zone and wherein the first PGM zone comprises a washcoat loading that is less than a washcoat loading of the third PGM zone.

    摘要翻译: 用于贫燃内燃机的排气系统包括用于氧化一氧化碳和烃的催化剂,其包括流过基材整料,其包含第一铂族金属(PGM)区,该第一铂族金属(PGM)区含有至少一个PGM, 包含至少一个PGM的第二PGM区域,所述第二PGM区域包含在增加表面积的修补基面涂层组分上的载体,包含至少一个PGM的第三PGM区域,所述第三PGM区域支持在增加表面积的修补基面涂层组分上,其中PGM负载在第一PGM区域和 第三PGM区中的PGM负载大于第二PGM区中的PGM负载,并且其中第一PGM区包含小于第三PGM区的修补基面涂层负载的修补基面涂层负载。