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    Exhaust purification system of internal combustion engine
    1.
    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：US08307635B2

    公开(公告)日：2012-11-13

    申请号：US12673950

    申请日：2009-05-07

    申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Masaaki Sato ,  Shinya Asaura

    发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Masaaki Sato ,  Shinya Asaura

    IPC分类号： F01N3/10

    CPC分类号： F01N3/208 ,  F01N3/105 ,  F01N3/108 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

    摘要： An exhaust purification system of an internal combustion engine that includes a NOx catalyst device which has a reducing material holding ability for holding reducing material and can reduce NOx by using the reducing material; and an electronic control unit that includes program logic, which when executed, determines whether or not a difference between a target amount of reducing material held by the NOx catalyst device and a current amount of reducing material held by the NOx catalyst device is larger than a set amount; and performs a first control or a second control.

    摘要翻译： 一种内燃机的排气净化系统，其包括具有用于保持还原材料的还原材料保持能力并且可以通过使用还原材料来还原NOx的NOx催化剂装置; 以及电子控制单元，其包括程序逻辑，当执行时，判定由所述NOx催化剂装置保持的还原材料的目标量与由所述NOx催化剂装置保持的还原材料的当前量之间的差是否大于 设定量 并执行第一控制或第二控制。

    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    4.
    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：US20110047993A1

    公开(公告)日：2011-03-03

    申请号：US12673950

    申请日：2009-05-07

    申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Masaaki Sato ,  Shinya Asaura

    发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Masaaki Sato ,  Shinya Asaura

    IPC分类号： F01N3/10

    CPC分类号： F01N3/208 ,  F01N3/105 ,  F01N3/108 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

    摘要： In an exhaust purification system of an internal combustion, comprising a NOX catalyst device which has a reducing material holding ability to hold reducing material and can reduce NOX by using of reducing material, a first control, in which an amount of reducing material of the equivalence ratio over 1 for an amount of NOX in the exhaust gas flowing into the NOX catalyst device is supplied to the NOX catalyst device until the reducing material holding ability holds a preset target amount of reducing material, is carried out and a second control, in which in spite of an amount of reducing material held by the reducing material holding ability, an amount of reducing material of the equivalence ratio of a predetermined value for an amount of NOX in the exhaust gas flowing into the NOX catalyst device is supplied to the NOX catalyst device, is carried out from when the first control has been carried out to when the next first control will be carried out.

    摘要翻译： 在内燃的排气净化系统中，包括具有还原材料保持能力以保持还原材料并且可以通过使用还原材料来还原NO x的NO x催化剂装置的第一控制，其中等量的还原材料的量 向NOX催化剂装置排出的废气中的NO x的量超过1的比例被提供给NO X催化剂装置，直到还原材料保持能力保持预设的目标量的还原材料为止，并且进行第二控制，其中 尽管通过还原材料保持能力保持的还原材料的量，向NOX催化剂中供给与流入NOX催化剂装置的废气中的NO x的量的预定值的当量比的还原材料的量 设备，从执行第一控制到执行下一个第一控制的时刻执行。

    Exhaust purification apparatus for internal combustion engine
    5.
    发明授权
    Exhaust purification apparatus for internal combustion engine 有权
    内燃机排气净化装置

    公开(公告)号：US08534053B2

    公开(公告)日：2013-09-17

    申请号：US12675450

    申请日：2009-05-21

    申请人： Shinya Asaura ,  Tomihisa Oda ,  Shunsuke Toshioka ,  Masaaki Sato

    发明人： Shinya Asaura ,  Tomihisa Oda ,  Shunsuke Toshioka ,  Masaaki Sato

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  F01N3/023 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2900/1602 ,  F01N2900/1616 ,  Y02A50/2344 ,  Y02T10/24

    摘要： The present invention provides an exhaust purification apparatus for an internal combustion engine which enables a decrease in NOx purification rate and possible ammonia slip to be inhibited. The apparatus includes an NOx catalyst, a urea aqueous solution addition valve serving as reducing agent adding means, and NOx sensors provided an inlet and an outlet of the NOx catalyst, respectively. When the bed temperature of the NOx catalyst is in a predetermined high-temperature region in which the amount of ammonia converted into NOx increases relatively and an NOx purification rate decreases relatively, the apparatus uses outputs from the NOx sensors to perform correction such that the actual addition amount of the urea aqueous solution addition valve reaches a target addition amount.

    摘要翻译： 本发明提供一种内燃机的排气净化装置，能够抑制NOx净化率的降低和氨的滑移。 该装置包括NOx催化剂，用作还原剂添加装置的尿素水溶液添加阀和分别设置有NOx催化剂的入口和出口的NOx传感器。 当NOx催化剂的床温处于转化为NOx的氨的量相对增加并且NOx净化率相对降低的预定高温区域时，该装置使用来自NOx传感器的输出进行校正，使得实际 尿素水溶液添加阀的添加量达到目标添加量。

    EXHAUST PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINES
    6.
    发明申请
    EXHAUST PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINES 有权
    用于内燃机的排气净化装置

    公开(公告)号：US20110271663A1

    公开(公告)日：2011-11-10

    申请号：US13144158

    申请日：2009-01-13

    申请人： Masaaki Sato ,  Tomihisa Oda ,  Shinya Asaura ,  Shunsuke Toshioka

    发明人： Masaaki Sato ,  Tomihisa Oda ,  Shinya Asaura ,  Shunsuke Toshioka

    IPC分类号： F01N3/20

    CPC分类号： F01N3/208 ,  B01D53/9418 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2258/012 ,  F01N3/103 ,  F01N13/009 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/0412 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/1402 ,  F02M26/38 ,  Y02T10/121 ,  Y02T10/24

    摘要： An exhaust purifying device for an internal combustion engine which can restrict an influence of a measurement error in a NOx sensor provided at the downstream side of a catalyst and can optimally maintain a NOx purifying rate. The device includes a catalytic converter carrying a selective catalytic reduction catalyst provided in an exhaust passage of the engine to selectively reduce nitrogen oxides, a urea water adding valve for adding urea water to the catalyst as a reducing agent, a NOx sensor provided at the downstream side of the catalyst, and an ECU for adjusting an addition amount of the urea water adding valve based upon output of the NOx sensor, wherein a urea water addition amount adjusting process is executed under a condition that a NOx amount to be generated in the engine increases.

    摘要翻译： 一种用于内燃机的排气净化装置，其可以限制设置在催化剂下游侧的NOx传感器中的测量误差的影响，并且可以最佳地维持NOx净化率。 该装置包括：催化转化器，其携带选择性催化还原催化剂，其设置在发动机的排气通道中以选择性地还原氮氧化物;尿素水添加阀，用于向作为还原剂的催化剂添加尿素水;设置在下游的NOx传感器 所述催化剂的侧面，以及基于所述NOx传感器的输出来调节所述尿素水添加阀的添加量的ECU，其中，在所述发动机中产生的NOx量的条件下，执行尿素水添加量调整处理 增加

    EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的排气净化装置

    公开(公告)号：US20110056188A1

    公开(公告)日：2011-03-10

    申请号：US12675450

    申请日：2009-05-21

    申请人： Shinya Asaura ,  Tomihisa Oda ,  Shunsuke Toshioka ,  Masaaki Sato

    发明人： Shinya Asaura ,  Tomihisa Oda ,  Shunsuke Toshioka ,  Masaaki Sato

    IPC分类号： F01N11/00 ,  F01N3/035 ,  F01N3/10 ,  F01N9/00

    CPC分类号： F01N3/208 ,  F01N3/023 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2900/1602 ,  F01N2900/1616 ,  Y02A50/2344 ,  Y02T10/24

    摘要： The present invention provides an exhaust purification apparatus for an internal combustion engine which enables a decrease in NOx purification rate and possible ammonia slip to be inhibited. The apparatus includes an NOx catalyst, a urea aqueous solution addition valve serving as reducing agent adding means, and NOx sensors provided an inlet and an outlet of the NOx catalyst, respectively. When the bed temperature of the NOx catalyst is in a predetermined high-temperature region in which the amount of ammonia converted into NOx increases relatively and an NOx purification rate decreases relatively, the apparatus uses outputs from the NOx sensors to perform correction such that the actual addition amount of the urea aqueous solution addition valve reaches a target addition amount.

    摘要翻译： 本发明提供一种内燃机的排气净化装置，能够抑制NOx净化率的降低和氨的滑移。 该装置包括NOx催化剂，用作还原剂添加装置的尿素水溶液添加阀和分别设置有NOx催化剂的入口和出口的NOx传感器。 当NOx催化剂的床温处于转化为NOx的氨的量相对增加并且NOx净化率相对降低的预定高温区域时，该装置使用来自NOx传感器的输出进行校正，使得实际 尿素水溶液添加阀的添加量达到目标添加量。

    AQUEOUS UREA SOLUTION FEED DEVICE OF AN INTERNAL COMBUSTION ENGINE
    9.
    发明申请
    AQUEOUS UREA SOLUTION FEED DEVICE OF AN INTERNAL COMBUSTION ENGINE 失效
    内燃机的水质溶液进料装置

    公开(公告)号：US20100115928A1

    公开(公告)日：2010-05-13

    申请号：US12598204

    申请日：2009-02-06

    申请人： Shinya Asaura ,  Tomihisa Oda ,  Shunsuke Toshioka ,  Yutaka Tanai

    发明人： Shinya Asaura ,  Tomihisa Oda ,  Shunsuke Toshioka ,  Yutaka Tanai

    IPC分类号： F01N9/00 ,  F01N3/10

    CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9431 ,  B01D2251/2067 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/10 ,  F01N2610/14 ,  F01N2610/1406 ,  F01N2610/144 ,  F01N2610/1473 ,  Y02T10/24

    摘要： An internal combustion engine wherein when an aqueous urea solution should be fed from an aqueous urea solution feed valve (8), a feed pump (9) is operated forward and aqueous urea solution in an aqueous urea solution tank (4) is fed through an aqueous urea solution feed passage (10) into the aqueous urea solution feed valve (8). When ceasing the feed of aqueous urea solution from the aqueous urea solution feed valve (8), the feed pump (9) is operated in reverse whereby the ammonia gas generated in the aqueous urea solution tank (4) is drawn through a ammonia gas feed pipe (11) into the aqueous urea solution feed passage (10). Next, when the feed pump (9) is operated forward, the ammonia gas drawn into the aqueous urea solution feed path (10) is ejected from the aqueous urea solution feed valve (8).

    摘要翻译： 一种内燃机，其特征在于，当从尿素水溶液供给阀（8）供给尿素水溶液时，进料泵（9）向前方运动，尿素水溶液罐（4）中的尿素水溶液通过 尿素水溶液供给通道（10）进入尿素水溶液供给阀（8）。 当从尿素水溶液供给阀（8）停止供给尿素水溶液时，进料泵（9）反向运转，由此在尿素水溶液罐（4）中产生的氨气通过氨气进料 管道（11）进入尿素水溶液供给通道（10）。 接下来，当供给泵（9）向前运转时，从尿素水溶液供给阀（8）喷出被尿素溶液供给路径（10）吸入的氨气。