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    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    33.
    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

    申请人： Hiromasa Nishioka ,  Kohei Yoshida ,  Yoshihisa Tsukamoto ,  Yuki Bisaiji ,  Junichi Matsuo ,  Takamitsu Asanuma

    发明人： Hiromasa Nishioka ,  Kohei Yoshida ,  Yoshihisa Tsukamoto ,  Yuki Bisaiji ,  Junichi Matsuo ,  Takamitsu Asanuma

    IPC分类号： B01D53/94

    CPC分类号： B01D53/9422 ,  B01D53/9409 ,  B01D2251/208 ,  B01D2255/102 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2255/912 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/28 ,  F01N2240/30 ,  F01N2430/06 ,  F01N2510/0684

    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
    34.
    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

    申请人： Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Daichi Imai ,  Kazuhiro Umemoto

    发明人： Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Daichi Imai ,  Kazuhiro Umemoto

    IPC分类号： F01N3/10 ,  F01N3/20

    CPC分类号： F01N3/0871 ,  B01D53/9409 ,  B01D2251/208 ,  B01D2255/91 ,  B01D2257/402 ,  B01D2257/404 ,  B01D2258/012 ,  F01N3/0828 ,  F01N3/36 ,  F01N2570/145 ,  F01N2610/03 ,  Y02A50/2344 ,  Y02C20/10 ,  Y02T10/20

    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。

    Exhaust gas purification system and method for internal combustion engine
    35.
    发明授权
    Exhaust gas purification system and method for internal combustion engine 有权
    内燃机废气净化系统及方法

    公开(公告)号：US08061125B2

    公开(公告)日：2011-11-22

    申请号：US12310066

    申请日：2007-08-29

    申请人： Kohei Yoshida ,  Hiromasa Nishioka ,  Takamitsu Asanuma

    发明人： Kohei Yoshida ,  Hiromasa Nishioka ,  Takamitsu Asanuma

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0885 ,  F01N9/00 ,  F01N11/005 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/028 ,  F02D41/1446 ,  Y02T10/20

    摘要： Engine air-fuel ratio controlling means is provided to control an exhaust air-fuel ratio that is the ratio between the air contained in the exhaust gas discharged from the engine and the fuel element contained in the same exhaust gas and acting as a reducing agent at a NOx catalyst by controlling the air-fuel ratio of the gas combusted in the engine. Fuel adding means is provided upstream of the NOx catalyst in an exhaust passage to add fuel into the exhaust gas. During the SOx poisoning recovery control, when developing a state enabling SOx reduction reactions, the exhaust gas air-fuel ratio of the exhaust gas discharged from the engine and the amount of fuel added from the fuel adding means are controlled to minimize the sum of the amount of fuel injected in the engine and the amount of fuel added from the fuel adding means.

    摘要翻译： 发动机空燃比控制装置用于控制排气空燃比，该排气空燃比是包含在从发动机排出的废气中的空气与包含在同一废气中并用作还原剂的燃料元件之间的比例 通过控制在发动机中燃烧的气体的空燃比来控制NOx催化剂。 燃料添加装置设置在排气通道中的NOx催化剂的上游，以将燃料添加到废气中。 在SOx中毒恢复控制期间，当开发能够进行SOx还原反应的状态时，控制从发动机排出的废气的排气空燃比和从燃料添加装置添加的燃料量，以使 在发动机中喷射的燃料量和从燃料添加装置添加的燃料量。

    EXHAUST GAS PURIFICATION SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE
    37.
    发明申请
    EXHAUST GAS PURIFICATION SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统及方法

    公开(公告)号：US20090199548A1

    公开(公告)日：2009-08-13

    申请号：US12310066

    申请日：2007-08-29

    申请人： Kohei Yoshida ,  Hiromasa Nishioka ,  Takamitsu Asanuma

    发明人： Kohei Yoshida ,  Hiromasa Nishioka ,  Takamitsu Asanuma

    IPC分类号： F01N3/10 ,  F01N9/00

    CPC分类号： F01N3/0885 ,  F01N9/00 ,  F01N11/005 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/028 ,  F02D41/1446 ,  Y02T10/20

    摘要： Engine air-fuel ratio controlling means is provided to control an exhaust air-fuel ratio that is the ratio between the air contained in the exhaust gas discharged from the engine and the fuel element contained in the same exhaust gas and acting as a reducing agent at a NOx catalyst by controlling the air-fuel ratio of the gas combusted in the engine. Fuel adding means is provided upstream of the NOx catalyst in an exhaust passage to add fuel into the exhaust gas. During the SOx poisoning recovery control, when developing a state enabling SOx reduction reactions, the exhaust gas air-fuel ratio of the exhaust gas discharged from the engine and the amount of fuel added from the fuel adding means are controlled to minimize the sum of the amount of fuel injected in the engine and the amount of fuel added from the fuel adding means.

    摘要翻译： 发动机空燃比控制装置用于控制排气空燃比，该排气空燃比是包含在从发动机排出的废气中的空气与包含在同一废气中并用作还原剂的燃料元件之间的比例 通过控制在发动机中燃烧的气体的空燃比来控制NOx催化剂。 燃料添加装置设置在排气通道中的NOx催化剂的上游，以将燃料添加到废气中。 在SOx中毒恢复控制期间，当开发能够进行SOx还原反应的状态时，控制从发动机排出的废气的排气空燃比和从燃料添加装置添加的燃料量，以使 在发动机中喷射的燃料量和从燃料添加装置添加的燃料量。