Exhaust system comprising catalysed soot filter
    5.
    发明授权
    Exhaust system comprising catalysed soot filter 有权
    排气系统包括催化烟尘过滤器

    公开(公告)号:US08327632B2

    公开(公告)日:2012-12-11

    申请号:US12280932

    申请日:2007-02-13

    IPC分类号: F01N9/00

    摘要: An exhaust system which has a catalysed soot filter (CSF), a control unit, and a catalyzed sensor. The exhaust system, controllable by the control unit, can increase hydrocarbon (HC) and/or carbon monoxide (CO) content in an exhaust gas flowing into the CSF resulting in combustion of the HC and/or CO in the CSF, a temperature increase of the CSF, and combustion of particulate matter collected on the CSF. The catalyzed sensor is disposed between an engine manifold and the CSF, and combusts CO and/or HC in the exhaust gas and inputs the control unit with a datum correlating with an enthalpy of combustion of HC and/or CO in the exhaust gas, thereby controlling the content of the combustible HC and/or CO in the exhaust gas flowing into the CSF. The catalysed sensor is the only catalysed component in the exhaust system disposed between the engine and the CSF.

    摘要翻译: 具有催化烟尘过滤器(CSF),控制单元和催化传感器的排气系统。 由控制单元控制的排气系统可以增加流入CSF中的排气中的碳氢化合物(HC)和/或一氧化碳(CO)含量,导致CSF中HC和/或CO的燃烧,温度升高 的CSF,以及在CSF上收集的颗粒物质的燃烧。 催化传感器设置在发动机歧管和CSF之间,并且在排气中燃烧CO和/或HC,并将控制单元输入与废气中HC和/或CO的燃烧焓相关的基准,由此 控制流入CSF的排气中的可燃HC和/或CO的含量。 催化传感器是布置在发动机和CSF之间的排气系统中唯一的催化组分。

    Diesel engine and a catalysed filter therefor
    7.
    发明授权
    Diesel engine and a catalysed filter therefor 有权
    柴油发动机和催化过滤器

    公开(公告)号:US09169753B2

    公开(公告)日:2015-10-27

    申请号:US10547834

    申请日:2004-03-05

    摘要: A diesel engine includes an exhaust system having a particulate filter made from a porous material having a mean pore diameter of from 5 μm to 40 μm, a porosity of at least 40% and a bulk volumetric heat capacity of at least 0.50 J cm−3 K−1 at 500° C. The filter includes a diesel oxidation catalyst (DOC) located in a first catalyst zone on the front end of the filter and at least one catalyst zone located downstream thereof, for oxidizing carbon monoxide, hydrocarbons and nitrogen monoxide. The engine includes engine management means, in use, to provide continuously or intermittently an exhaust gas having sufficient nitrogen oxides or hydrocarbon and/or an exhaust gas of sufficiently high temperature to combust particulate matter. The platinum group metal (PGM) loading in the first catalyst zone is greater than the total PGM loading in the at least one downstream catalyst zone.

    摘要翻译: 柴油发动机包括排气系统,该排气系统具有由平均孔径为5μm至40μm的多孔材料制成的颗粒过滤器,至少40%的孔隙率和至少0.50J cm -3的体积体积热容量 K-1在500℃下。过滤器包括位于过滤器前端上的第一催化剂区域中的柴油氧化催化剂(DOC)和位于其下游的至少一个催化剂区域,用于氧化一氧化碳,烃和一氧化氮 。 发动机包括发动机管理装置,在使用中,连续地或间断地提供具有足够高的氮氧化物或烃和/或具有足够高温度的排气的废气来燃烧颗粒物质。 在第一催化剂区域中负载的铂族金属(PGM)大于在至少一个下游催化剂​​区域中的总PGM负载量。

    EXHAUST SYSTEM COMPRISING CATALYSED SOOT FILTER
    9.
    发明申请
    EXHAUST SYSTEM COMPRISING CATALYSED SOOT FILTER 有权
    包括催化过滤器的排气系统

    公开(公告)号:US20090071131A1

    公开(公告)日:2009-03-19

    申请号:US12280932

    申请日:2007-02-13

    IPC分类号: F01N9/00

    摘要: An exhaust system comprises: (a) a catalysed soot filter (CSF); (b) a control unit; (c) means, controllable by the control unit, for increasing a content of combustible hydrocarbon (HC) and/or carbon monoxide (CO) in an exhaust gas flowing into the CSF thereby to combust the HC and/or CO in the CSF, to increase the temperature of the CSF and to combust particulate matter collected thereon; and (d) catalysed sensor means disposed between an engine manifold and the CSF for combusting CO and/or HC in exhaust gas flowing in the exhaust system and inputting the control unit with a datum correlating with an enthalpy of combustion of HC and/or CO in the exhaust gas, whereby the control unit, when in use, controls the combustible HC and/or CO introducing means in response to the datum input thereby to control the rate of contacting the CSF with combustible HC and/or CO.

    摘要翻译: 排气系统包括:(a)催化烟灰过滤器(CSF); (b)控制单元; (c)由控制单元控制的用于增加流入CSF中的排气中的可燃烃(HC)和/或一氧化碳(CO)的含量的装置,从而燃烧CSF中的HC和/或CO, 以增加CSF的温度并燃烧在其上收集的颗粒物质; 和(d)设置在发动机歧管和CSF之间的催化传感器装置,用于在排气系统中流动的废气中燃烧CO和/或HC,并将控制单元输入与HC和/或CO的燃烧焓相关的基准 在排气中,由此控制单元在使用时响应于数据输入控制可燃HC和/或CO引入装置,从而控制CSF与可燃HC和/或CO接触的速率。