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    ADDITIVE SUPPLY DEVICE AND ADDITIVE SUPPLY METHOD FOR ENGINE
    1.
    发明授权
    ADDITIVE SUPPLY DEVICE AND ADDITIVE SUPPLY METHOD FOR ENGINE 有权
    发动机的添加剂供应装置和添加剂供应方法

    公开(公告)号：EP3055525B1

    公开(公告)日：2017-11-29

    申请号：EP14793301.4

    申请日：2014-10-01

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Kabushiki Kaisha Toyota Jidoshokki

    发明人： TSUCHIYA, Tomihisa ,  HOSHI, Sakutaro

    IPC分类号： F01N3/20

    CPC分类号： F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2900/1811 ,  Y02A50/2325 ,  Y02T10/24

    摘要： An additive supply device for an engine, the additive supply device includes an additive supply system, a heater, an intake air temperature sensor and a heating control unit. The additive supply system is positioned outside of an engine compartment, and the additive supply system includes a tank, a pump, a supply passage. The heater heats the additive inside the additive supply system. The heating control unit is configured to (i) actuate the heater when a detected intake air temperature is low, and stop the actuation of the heater when the detected intake air temperature rises, and (ii) continue the actuation of the heater when a condition under which the detected intake air temperature and the temperature of the additive inside the additive supply system have deviated from each other is fulfilled during the actuation of the heater.

    ADDITIVE SUPPLY DEVICE
    2.
    发明公开
    ADDITIVE SUPPLY DEVICE 审中-公开
    添加剂供应装置

    公开(公告)号：EP3098408A1

    公开(公告)日：2016-11-30

    申请号：EP16170875.5

    申请日：2016-05-23

    申请人： Toyota Jidosha Kabushiki Kaisha ,  KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

    发明人： TSUCHIYA, Tomihisa ,  HOSHI, Sakutaro ,  MAEDA, Shoichi ,  HATTA, Masanori

    IPC分类号： F01N3/20

    CPC分类号： F01N3/2066 ,  F01N3/208 ,  F01N2260/10 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2610/1453 ,  Y02T10/24

    摘要： An additive supply device includes: an addition valve (2) that injects urea water into an exhaust passage (1) of an internal combustion engine; a pipe (4); and a pump (6), a tank (5) and a pipe (4). The connector (3) is provided so that an inner upper end of the connector (3) is located at a position higher than the position of the connection port (2a) when the addition valve (2) is connected to the connector (3). A pressure accumulation portion (10) in which compressed air that, when the pumping of the urea water by the pump (6) is stopped, expands to a volume equal to or larger than the volume upon freezing and expansion of the urea water remaining inside the addition valve (2) and the pipe (4) is accumulated is provided in an upper part inside the connector (3), at a position higher than the position of the connection port (2a).

    摘要翻译： 一种添加剂供给装置，包括：向内燃机的排气通路（1）喷射尿素水的添加阀（2） 管（4）; 和泵（6），罐（5）和管（4）。 连接器（3）被设置为，当添加阀（2）连接到连接器（3）时，连接器（3）的内上端位于比连接端口（2a）的位置更高的位置处， 。 一种蓄压部（10），在该蓄压部（10）中，当泵（6）停止泵送尿素水时，压缩空气膨胀到等于或大于留在内部的尿素水冷冻和膨胀时的体积 在连接器（3）的内部的上部，在比连接口（2a）的位置更高的位置设置有添加阀（2）和管（4）。

    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
    6.
    发明公开
    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号：EP2570626A1

    公开(公告)日：2013-03-20

    申请号：EP10851411.8

    申请日：2010-05-14

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： FUKUDA, Koichiro ,  HIROTA, Shinya ,  TOSHIOKA, Shunsuke ,  HOSHI, Sakutaro

    IPC分类号： F01N3/08 ,  B01D53/94

    CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D2251/2067 ,  B01D2255/30 ,  B01D2255/50 ,  B01D2255/911 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0408 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24

    摘要： This invention is intended to provide a technique which, in an exhaust gas purification apparatus of an internal combustion engine, can avoid a decrease in a NOx purification rate by adding a reducing agent as continuously as possible, while avoiding NH 3 from passing through a selective reduction type NOx catalyst to a downstream side thereof. In this invention, the selective reduction type NOx catalyst has an active spot which purifies NOx by the use of NH 3 , and an adsorption site which adsorbs NH 3 , wherein a vicinity site, which is located in the vicinity of the active spot, and a distant site, which is located distant from the active spot, exist in the adsorption site. The vicinity site tends to deliver NH 3 to the active spot more easily than the distant site does, and the desorption rate of NH 3 in the vicinity site is faster than the desorption rate of NH 3 in the distant site, and the addition of the reducing agent from the reducing agent addition part is controlled based on the desorption rate of NH 3 in the vicinity site so as to continue to cause the NH 3 adsorbed to the vicinity site to exist.

    摘要翻译： 本发明旨在提供一种技术，其在内燃机的排气净化装置中通过尽可能连续地添加还原剂来避免NOx净化率的降低，同时避免NH 3通过选择性还原 向其下游侧输入NOx型催化剂。 在本发明中，选择还原型NOx催化剂具有利用NH3净化NOx的活性点和吸附NH3的吸附位点，其中位于活性点附近的附近位点和位于活性点附近的远处 位于远离活性点的位置存在于吸附位点。 附近位置倾向于比远处位置更容易地将NH 3传送到活性点，并且附近位点处的NH 3的解吸速率比远处位点处的NH 3的解吸速率更快，并且添加还原剂来自 还原剂添加部分基于附近部位的NH 3的解吸速度进行控制，以继续使附着在附近部位的NH 3存在。