利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

177 条记录 (耗时 0.025 秒)

    Exhaust gas control apparatus for internal combustion engine
    34.
    发明申请
    Exhaust gas control apparatus for internal combustion engine 审中-公开
    内燃机排气控制装置

    公开(公告)号：US20090107121A1

    公开(公告)日：2009-04-30

    申请号：US12289239

    申请日：2008-10-23

    申请人： Kohei Yoshida ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

    发明人： Kohei Yoshida ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

    IPC分类号： F01N9/00

    CPC分类号： F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/2066 ,  F01N11/00 ,  F01N13/009 ,  F01N2240/00 ,  F01N2570/04 ,  F01N2570/14 ,  F01N2610/02 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

    摘要： A SOx trap catalyst, an oxidation catalyst, a particulate filter, an aqueous urea supply valve, and a NOx selective reduction catalyst are arranged in order from upstream to downstream in an engine exhaust passage. It is determined whether a discharge concentration of hydrogen sulfide H2S will become equal to or greater than a preset maximum concentration when SOx is released from the SOx trap catalyst. If it is estimated that the discharge concentration of the hydrogen sulfide H2S will become equal to or greater than the maximum concentration when SOx is released, an adsorbed ammonia amount adsorbed on the NOx selective reduction catalyst is reduced before SOx is released so that the discharge concentration of the hydrogen sulfide H2S is less than the maximum concentration when SOx is released.

    摘要翻译： 在发动机排气通道中从上游到下游依次布置有SO x捕集催化剂，氧化催化剂，颗粒过滤器，含水尿素供给阀和NOx选择还原催化剂。 当SO x从SO X捕集催化剂释放时，确定硫化氢H 2 S的排出浓度是否将变为等于或大于预设最大浓度。 如果估计硫化氢H 2 S的排放浓度将变为等于或大于SO x释放时的最大浓度，则在释放SOx之前吸附在NOx选择还原催化剂上的吸附氨量降低，使得排放浓度 的硫化氢H2S小于SOx释放时的最大浓度。

    Device for detection of sulfur concentration in fuel or oil
    38.
    发明授权
    Device for detection of sulfur concentration in fuel or oil 有权
    用于检测燃料或油中硫浓度的装置

    公开(公告)号：US08156787B2

    公开(公告)日：2012-04-17

    申请号：US12377039

    申请日：2008-06-30

    申请人： Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

    发明人： Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

    IPC分类号： G01N27/04 ,  G01N33/22

    CPC分类号： G01N33/287 ,  F01N2560/027 ,  G01N33/0042 ,  Y02A50/248

    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SOX量的假定累积值。 根据SOX量的实际累积值和SOX量的假定累积值判断是否使用高硫浓度的燃料或油。