DEVICE FOR DETECTION OF SULFUR CONCENTRATION IN FUEL OR OIL
    5.
    发明申请
    DEVICE FOR DETECTION OF SULFUR CONCENTRATION IN FUEL OR OIL 有权
    用于检测燃油或油中的硫浓度的装置

    公开(公告)号:US20090241638A1

    公开(公告)日:2009-10-01

    申请号:US12377039

    申请日:2008-06-30

    IPC分类号: G01N1/22

    摘要: A metal compound (50) able to trap a sulfur component in exhaust gas is arranged in a flow path of the exhaust gas, a property of the metal compound (50) changing along with an increase of the amount of sulfur component trapped at the metal compound (50) is measured, and the cumulative value of the amount of SOX actually contained in the exhaust gas is calculated from the measured property. On the other hand, the assumed cumulative value of the amount of SOx, assumed to be contained in the exhaust gas when assuming that fuel or oil of a sulfur concentration assumed in advance is used, is calculated. It is judged if fuel or oil with a high sulfur concentration is being used from the actual cumulative value of the amount of SOX and the assumed cumulative value of the amount of SOx.

    摘要翻译: 排气中的硫成分的金属化合物(50)配置在废气的流路中,金属化合物(50)的特性随着金属中被捕获的硫成分的量的增加而变化 测量化合物(50),并根据测定的性质计算废气中实际含有的SOX量的累积值。 另一方面,假设假设使用预先假设的硫浓度的燃料或油的假定在废气中包含的SO x的量的假定累积值。 根据SOX量的实际累积值和SOx量的假定累计值判断是否使用了高硫浓度的燃料或油。

    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号:US20130121885A1

    公开(公告)日:2013-05-16

    申请号:US13257789

    申请日:2010-07-28

    IPC分类号: B01D53/94

    摘要: In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust treatment catalyst (13) are arranged. On a substrate (45) of the exhaust treatment catalyst (13), a coat layer comprised of at least two layers of a top coat layer (46) and a bottom coat layer (47) is formed. The top coat layer (46) is comprised of an exhaust purification catalyst for reacting NOx contained in exhaust gas and reformed hydrocarbons, while the bottom coat layer (47) is comprised of an NOx absorption catalyst. The concentration of hydrocarbons which flows into the exhaust treatment catalyst (13) is made to vibrate within a predetermined range of amplitude and within a predetermined range of period. Due to this, NOx contained in exhaust gas and NOx desorbed from the NOx absorption catalyst (47) are reduced in the exhaust purification catalyst (46).

    摘要翻译: 在内燃机中,配置发动机排气通路内部的烃供给阀(15)和排气处理催化剂(13)。 在排气处理催化剂(13)的基板(45)上形成由至少两层顶涂层(46)和底涂层(47)构成的涂层。 顶涂层(46)由用于使废气中所含的NOx和重整烃反应的排气净化催化剂构成,而底涂层(47)由NOx吸收催化剂构成。 使流入排气处理催化剂(13)的烃的浓度在预定的振幅范围内振动并且在预定的周期范围内。 由此,在排气净化催化剂(46)中减少了废气中所含的NOx和从NOx吸收催化剂(47)脱附的NOx。

    Exhaust purification system of internal combustion engine
    8.
    发明授权
    Exhaust purification system of internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号:US08434297B2

    公开(公告)日:2013-05-07

    申请号:US12673888

    申请日:2009-06-15

    IPC分类号: F01N3/10 F01N3/20

    摘要: An electronic control unit executing an algorithm so as to operate an exhaust purification system of an engine. The algorithm (1) commences a regeneration treatment by causing an amount of fuel supplied to a combustion process of the engine to increase so as to change an air-fuel ratio of exhaust gas of the engine from a first lean air-fuel ratio to a set rich air-fuel ratio and (2) causes uncombusted fuel to be supplied to a NOx catalyst device during at least one of: a first period in which an air-fuel ratio of the exhaust gas within the NOx catalyst device changes from the first lean air-fuel ratio to the set rich air-fuel ratio when the regeneration treatment is started; and a second period after an air-fuel ratio of the exhaust gas within the NOx catalyst device becomes a ratio indicating completion of the regeneration treatment.

    摘要翻译: 一种执行算法以操作发动机的排气净化系统的电子控制单元。 算法(1)通过使供给到发动机的燃烧过程的燃料量增加而开始再生处理,以将发动机的排气的空燃比从第一稀空燃比改变为 设定浓空燃比,(2)在NOx催化剂装置中的排气的空燃比从第一时间变化的第一期间中的至少一个期间使未燃燃料供给到NOx催化剂装置 当再生处理开始时,稀空燃比与设定的浓空燃比; 并且在NOx催化剂装置内的排​​气的空燃比成为表示再生处理完成的比例的第二期间。