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1. 发明授权

US10125647B2 Exhaust gas purification apparatus for an internal combustion engine 有权
公开(公告)号：US10125647B2
公开(公告)日：2018-11-13
申请号：US15039462
申请日：2014-11-27
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Akira Mikami , Shigeki Nakayama , Nobumoto Ohashi , Keishi Takada , Junichi Matsuo
IPC分类号： F01N3/20 , B01D53/94 , F01N9/00 , F01N11/00 , F01N13/00
摘要： An exhaust gas purification apparatus for an internal combustion engine comprises: a selective catalytic reduction (SCR) catalyst selectively reducing NOx in an exhaust gas of the internal combustion engine using ammonia as a reducing agent; a supply device adding an additive agent, such as ammonia, to the exhaust gas at an upstream side of the SCR catalyst; and a controller, when a temperature of SCR catalyst is higher than a predetermined temperature, increases a NOx concentration of the exhaust gas flowing into the SCR catalyst and increases an amount of addition of the additive agent in such a manner that a ratio of an amount of ammonia with respect to an amount of NOx contained in the exhaust gas flowing into the SCR catalyst, becomes large, as compared to when the temperature is equal to or less than the predetermined temperature.

2. 发明授权

US10337376B2 Exhaust gas purification system for an internal combustion engine 有权
公开(公告)号：US10337376B2
公开(公告)日：2019-07-02
申请号：US15527891
申请日：2015-12-15
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Akira Mikami , Shigeki Nakayama , Keishi Takada , Nobumoto Ohashi , Junichi Matsuo
IPC分类号： F01N3/20 , F01N3/025 , F01N3/035 , F01N3/08 , F01N9/00 , F02D41/02 , F02D41/40 , F01N3/10 , F01N13/00 , B01D46/00 , B01D53/94
摘要： An exhaust gas purification system comprises a first fuel supply unit to supply fuel to exhaust gas flowing in an exhaust passage by a supply valve arranged in the exhaust passage, and a second fuel supply unit to supply fuel to exhaust gas by adjusting a fuel injection condition, wherein in a temperature raising stage of the NOx SCR catalyst associated with the exhaust gas temperature raising processing, first control is performed in which fuel is supplied by the first fuel supply unit, and in a temperature holding stage of the NOx SCR catalyst associated with the exhaust gas temperature raising processing, at least second control is performed in which the ratio of an amount of fuel supply by the second fuel supply unit with respect to an amount of fuel supply by the first fuel supply unit becomes higher in comparison with that when performing the first control.

3. 发明授权

US09512769B2 Urea water supply system 有权
标题翻译：尿素供水系统
公开(公告)号：US09512769B2
公开(公告)日：2016-12-06
申请号：US14736687
申请日：2015-06-11
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Junichi Matsuo , Nobumoto Ohashi , Akira Mikami , Keishi Takada , Shigeki Nakayama
IPC分类号： F01N3/00 , F01N3/10 , F01N11/00 , F01N3/20 , F01N3/28 , F01N13/00
CPC分类号： F01N11/00 , F01N3/2066 , F01N3/208 , F01N3/2896 , F01N13/0093 , F01N13/011 , F01N2610/02 , F01N2610/144 , F01N2610/146 , F01N2610/1486 , F01N2610/1493 , F01N2900/1808 , F01N2900/1822 , Y02T10/24
摘要： A pump share-type urea water supply system includes a first supply valve and a second supply valve. A urea water tank is connected with the respective supply valves by a urea water supply path that includes a first supply path for the first supply valve and a second supply path for the second supply valve. The second supply path has a larger capacity than the first supply path by a predetermined volume. A suck-back control controls opening and closing of the respective supply valves such that a first estimated valve-opening time of the first supply valve for suck-back control in the first supply valve and supply path is shorter than a second estimated valve-opening time of the second supply valve for suck-back control in the second supply valve and in-the-second supply path by at least a first control time corresponding to the predetermined volume.
摘要翻译：泵共用型尿素水供给系统包括第一供给阀和第二供给阀。尿素水箱通过包括第一供给阀的第一供给路径和第二供给阀的第二供给路径的尿素水供给路径与各供给阀连接。第二供应路径具有比第一供应路径大一预定体积的容量。回吸控制控制各个供给阀的打开和关闭，使得第一供给阀和供给通道中的用于吸回控制的第一供给阀的第一估计开阀时间比第二估计开阀时间短第二供给阀用于在第二供给阀和第二供给路径中进行至少第一控制时间的第二供给阀的时间。

4. 发明申请

US20150290587A1 EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的排气净化装置
公开(公告)号：US20150290587A1
公开(公告)日：2015-10-15
申请号：US14443179
申请日：2012-11-16
申请人： Akira MIKAMI , Shigeki NAKAYAMA , Nobumoto OHASHI , Keishi TAKADA , Kenji SAKURAI , Yoshihisa TUKAMOTO , Hiroshi OTSUKI , Junichi MATSUO , Ichiro YAMAMOTO , TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Akira Mikami , Shigeki Nakayama , Nobumoto Ohashi , Keishi Takada , Kenji Sakurai , Yoshihisa Tsukamoto , Hiroshi Otsuki , Junichi Matsuo , Ichiro Yamamoto
IPC分类号： B01D53/94 , F01N3/10 , F01N3/08 , F01N13/00 , F01N3/021
CPC分类号： B01D53/9477 , B01D53/0415 , B01D53/9418 , B01D53/944 , B01D53/9463 , B01D53/9468 , B01D2251/2062 , B01D2255/1021 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/904 , B01D2255/911 , B01D2257/406 , B01D2257/502 , B01D2257/702 , B01D2258/012 , F01N3/021 , F01N3/035 , F01N3/0814 , F01N3/0828 , F01N3/103 , F01N3/106 , F01N3/108 , F01N3/2066 , F01N13/009 , F01N13/0097 , F01N2510/063 , F01N2510/0684 , F01N2560/06 , F01N2560/14 , F01N2570/18 , F01N2610/02 , Y02T10/24
摘要： An object of the present invention is to appropriately remove, from an exhaust gas, HC, CO, and ammonia flowing out from a filter (SCRF) on which an SCR catalyst is carried. In the present invention, a post-catalyst 8 is provided for an exhaust gas passage of an internal combustion engine on a downstream side from SCRF along with a flow of the exhaust gas. The post-catalyst 8 is constructed to include an adsorption reduction part 81c which adsorbs ammonia and which reduces NOx by using ammonia as a reducing agent, a first oxidation part 81b which oxidizes ammonia, and a second oxidation part 82 which oxidizes HO and CO.
摘要翻译：本发明的目的是从排出气体中适当地除去从其上载有SCR催化剂的过滤器（SCRF）流出的HC，CO和氨。在本发明中，为了将内燃机的排气通路与SCRF的下游侧连同废气流一起设置有后催化剂8。后催化剂8被构造为包括吸附氨并通过使用氨作为还原剂而还原NOx的吸附还原部分81c，氧化氨的第一氧化部分81b和氧化HO和CO的第二氧化部分82。

5. 发明申请

US20180328246A1 EXHAUST GAS PURIFICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20180328246A1
公开(公告)日：2018-11-15
申请号：US15527891
申请日：2015-12-15
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Akira Mikami , Shigeki Nakayama , Keishi Takada , Nobumoto Ohashi , Junichi Matsuo
IPC分类号： F01N3/20 , F01N3/08 , F01N3/035 , F01N3/10 , F02D41/02 , B01D53/94 , B01D46/00 , F01N3/025 , F01N9/00 , F02D41/40
CPC分类号： F01N3/208 , B01D46/0027 , B01D46/0061 , B01D53/9418 , B01D53/9431 , B01D53/9495 , B01D2279/30 , F01N3/0253 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N3/2066 , F01N9/002 , F01N13/009 , F01N2430/085 , F01N2510/06 , F01N2570/14 , F01N2610/02 , F01N2610/03 , F01N2900/1402 , F01N2900/1404 , F01N2900/1602 , F02D41/025 , F02D41/027 , F02D41/0275 , F02D41/029 , F02D41/405 , F02D2200/0802 , Y02T10/24 , Y02T10/26 , Y02T10/44 , Y02T10/47
摘要： An exhaust gas purification system comprise a first fuel supply unit to supply fuel to exhaust gas flowing in an exhaust passage by a supply valve arranged in the exhaust passage, and a second fuel supply unit to supply fuel to exhaust gas by adjusting a fuel injection condition wherein in a temperature raising stage of the NOx SCR catalyst associated with the exhaust gas temperature raising processing, first control is performed in which fuel is supplied by the first fuel supply unit, and in a temperature holding stage of the NOx SCR catalyst associated with the exhaust gas temperature raising processing, at least second control is performed in which the ratio of an amount of fuel supply by the second fuel supply unit with respect to an amount of fuel supply by the first fuel supply unit becomes higher in comparison with that when performing the first control.

6. 发明授权

US09551261B2 Urea water supply system 有权
标题翻译：尿素供水系统
公开(公告)号：US09551261B2
公开(公告)日：2017-01-24
申请号：US14737602
申请日：2015-06-12
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Junichi Matsuo , Nobumoto Ohashi , Akira Mikami , Keishi Takada , Shigeki Nakayama
IPC分类号： F01N3/00 , F01N11/00 , F01N3/20 , F01N3/28 , F01N13/00
CPC分类号： F01N11/00 , F01N3/2066 , F01N3/2896 , F01N13/0093 , F01N13/011 , F01N2610/02 , F01N2610/144 , F01N2610/1466 , F01N2610/148 , F01N2610/1493 , F01N2900/1808 , F01N2900/1822 , Y02T10/24
摘要： An object is to suppress the occurrence of a failure in supply of urea water as much as possible in filling control of urea water in a pump share-type urea water supply system with two supply valves. In the pump share-type urea water supply system with a first supply valve and a second supply valve, a urea water tank is connected with the respective supply valves by a urea water supply path. The urea water supply path includes a first supply path for the first supply valve and a second supply path for the second supply valve. The second supply path has a larger capacity than the capacity of the first supply path by a predetermined volume. Filling control of urea water pressure-feeds urea water to the first supply valve and the first supply path by a pump operated in a specified operating state in a state that at least the first supply valve out of the first and second supply valves is opened, and closes the first supply valve based on a pressure value or a pressure variation per unit time obtained by an acquirer.
摘要翻译：目的是在具有两个供给阀的泵共用型尿素供水系统中，尽可能地抑制尿素水的供给发生故障的发生。在具有第一供给阀和第二供给阀的泵共用型尿素供水系统中，通过尿素水供给路径将尿素水箱与各供给阀连接。尿素水供给路径包括第一供给阀的第一供给路径和第二供给阀的第二供给路径。第二供应路径具有比第一供应路径的容量大一预定体积的容量。在第一和第二供给阀中的至少第一供给阀打开的状态下，通过在指定的运转状态下运转的泵对尿素水进行加压控制，将尿素水加压到第一供给阀和第一供给路径，并且基于由收单者获得的每单位时间的压力值或压力变化来关闭第一供给阀。

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