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    Exhaust purification system of internal combustion engine
    21.
    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：US08707681B2

    公开(公告)日：2014-04-29

    申请号：US13259712

    申请日：2011-01-17

    申请人： Yuki Bisaiji ,  Kohei Yoshida ,  Mikio Inoue

    发明人： Yuki Bisaiji ,  Kohei Yoshida ,  Mikio Inoue

    IPC分类号： F01N3/00

    CPC分类号： F01N3/10 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/2073 ,  F01N3/36 ,  F01N2430/06 ,  F01N2610/03 ,  F02D41/028

    摘要： In an internal combustion engine, inside an engine exhaust passage, a hydrocarbon feed valve (15) an exhaust purification catalyst (13), and a particulate filter (14) are arranged. If the hydrocarbon feed valve (15) feeds hydrocarbons by a period of within 5 seconds, a reducing intermediate is produced inside the exhaust purification catalyst (13). This reducing intermediate is used for NOx purification processing. When the stored SOx should be released from the exhaust purification catalyst (13), the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst (13) is made rich, the reducing intermediate built up on the exhaust purification catalyst (13) is made to be desorbed in the form of ammonia, and the desorbed ammonia is used to make the exhaust purification catalyst (13) release the stored SOx.

    摘要翻译： 在内燃机中，在发动机排气通路内设置有碳氢化合物供给阀（15），排气净化催化剂（13）和微粒过滤器（14）。 如果烃进料阀（15）在5秒钟内进料烃，则在排气净化催化剂（13）内产生还原中间体。 该还原中间体用于NOx净化处理。 当从废气净化催化剂（13）中释放储存的SO x时，流入排气净化催化剂（13）的废气的空燃比变浓，在废气净化催化剂（13） ）以氨的形式解吸，并且使用解吸的氨来使排气净化催化剂（13）释放储存的SO x。

    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    22.
    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：US20130149205A1

    公开(公告)日：2013-06-13

    申请号：US13262858

    申请日：2010-08-30

    申请人： Yuki Bisaiji ,  Kohei Yoshida ,  Mikio Inoue

    发明人： Yuki Bisaiji ,  Kohei Yoshida ,  Mikio Inoue

    IPC分类号： F01N3/28

    CPC分类号： F01N3/2882 ,  B01D53/9409 ,  B01D2251/208 ,  B01D2255/102 ,  B01D2255/91 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2073 ,  F01N9/00 ,  F01N13/009 ,  F01N2240/30 ,  F01N2240/40 ,  F01N2510/0684 ,  F01N2570/24 ,  F01N2610/146 ,  Y02T10/24 ,  Y02T10/47

    摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The concentration of hydrocarbons which flows into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13). At this time, the nitrogen-containing intermediate which is produced in the NOx reduction process is exhausted from the exhaust purification catalyst (13). An intermediate purification catalyst (14) for removal of the exhausted nitrogen-containing intermediate is arranged downstream of the exhaust purification catalyst (13).

    摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 流入排气净化催化剂（13）的烃的浓度在200ppm以上的预定振幅范围内振动，并且在5秒以下的预定范围内，由此含有 在排气净化催化剂（13）中的排气减少。 此时，在NOx还原工序中产生的含氮中间体从废气净化催化剂（13）排出。 用于去除排出的含氮中间体的中间纯化催化剂（14）设置在排气净化催化剂（13）的下游。

    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    23.
    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
    24.
    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：US20130047588A1

    公开(公告)日：2013-02-28

    申请号：US13510156

    申请日：2011-08-29

    申请人： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji

    发明人： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji

    IPC分类号： F01N3/10 ,  F01N3/035

    CPC分类号： F01N3/035 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/2033 ,  F01N2610/03 ,  F02D41/025 ,  F02D41/0275 ,  F02D41/029 ,  F02D41/1408 ,  F02D41/405 ,  F02D2200/0806 ,  Y02T10/26

    摘要： An exhaust purification system of an internal combustion engine is provided with an exhaust purification catalyst which removes NOx and a post treatment device. The exhaust purification catalyst has the property of reducing NOx if making the concentration of hydrocarbons vibrate by within a predetermined range of amplitude and within a predetermined range of period and furthermore has the function of oxidizing hydrocarbons. The exhaust purification system feeds hydrocarbons to the exhaust purification catalyst and raises the temperature of the post treatment device as temperature elevation control. The exhaust purification catalyst has a high purification rate range where the NOx purification rate becomes higher than a predetermined rate. In the temperature elevation control, the total feed amount of hydrocarbons is set and the feed period of hydrocarbons is set in the high purification rate range in a region at the end at the short side of feed period of hydrocarbons.

    摘要翻译： 内燃机的排气净化系统具备除去NOx的废气净化催化剂和后处理装置。 如果使烃的浓度在预定的振幅范围内并在预定的时间范围内振动，则排气净化催化剂具有还原NOx的性质，并且还具有氧化烃的功能。 排气净化系统将碳氢化合物供给到排气净化催化剂，并将后处理装置的温度升高为升温控制。 排气净化催化剂具有高净化率，其中NOx净化率高于预定的速率。 在升温控制中，设定碳氢化合物的总进料量，并且将碳氢化合物的进料周期设定在碳氢化合物进料周期末端的区域的高净化率范围。