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公开(公告)号：US09822683B2
公开(公告)日：2017-11-21
申请号：US14443214
申请日：2012-11-16
申请人： Yoshihisa Tsukamoto , Nobumoto Ohashi , Shigeki Nakayama , Akira Mikami , Kenji Sakurai , Hiroshi Otsuki , Junichi Matsuo , Keishi Takada , Ichiro Yamamoto
发明人： Yoshihisa Tsukamoto , Nobumoto Ohashi , Shigeki Nakayama , Akira Mikami , Kenji Sakurai , Hiroshi Otsuki , Junichi Matsuo , Keishi Takada , Ichiro Yamamoto
IPC分类号： F01N3/00 , F01N3/025 , F01N3/10 , F01N3/20 , F02D41/02 , F01N9/00 , F02D41/40 , F01N3/023 , F01N3/035 , F01N13/00 , B01D53/04 , F01N3/021 , F01N3/029 , F01N3/28 , B01D53/94
CPC分类号： F01N3/0253 , B01D53/0415 , B01D53/9418 , B01D53/944 , B01D53/9477 , B01D53/9495 , B01D2251/2062 , B01D2255/1021 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9155 , B01D2257/406 , B01D2257/502 , B01D2257/702 , B01D2258/012 , F01N3/021 , F01N3/0231 , F01N3/0293 , F01N3/035 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N3/208 , F01N3/2882 , F01N9/002 , F01N13/009 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2610/03 , F01N2900/1404 , F01N2900/1602 , F01N2900/1622 , F02D41/029 , F02D41/405 , F02D2200/0802 , F02D2200/0812 , Y02T10/24 , Y02T10/44 , Y02T10/47
摘要： An exhaust gas purification system for an internal combustion engine is provided with a filter including a selective catalytic reduction NOx catalyst carried thereon. Further, a post-catalyst is provided for an exhaust gas passage disposed on a downstream side from the filter. The post-catalyst has an oxidizing function, and the post-catalyst has such a function that the production of N2 based on the oxidation of ammonia is facilitated in a predetermined first temperature area. A filter regeneration process execution unit is programmed to control the temperature of the post-catalyst to be in the first temperature area while adjusting the temperature of the filter to be in a predetermined second temperature area lower than a filter regeneration temperature during a certain period of time.
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公开(公告)号：US09662612B2
公开(公告)日：2017-05-30
申请号：US14443179
申请日：2012-11-16
申请人： Akira Mikami , Shigeki Nakayama , Nobumoto Ohashi , Keishi Takada , Kenji Sakurai , Yoshihisa Tsukamoto , Hiroshi Otsuki , Junichi Matsuo , Ichiro Yamamoto
发明人： Akira Mikami , Shigeki Nakayama , Nobumoto Ohashi , Keishi Takada , Kenji Sakurai , Yoshihisa Tsukamoto , Hiroshi Otsuki , Junichi Matsuo , Ichiro Yamamoto
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.
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公开(公告)号：US09482133B2
公开(公告)日：2016-11-01
申请号：US14652830
申请日：2012-12-18
申请人： Keishi Takada , Nobumoto Ohashi , Shigeki Nakayama , Akira Mikami , Kenji Sakurai , Junichi Matsuo , Yoshihisa Tsukamoto , Hiroshi Otsuki , Ichiro Yamamoto
发明人： Keishi Takada , Nobumoto Ohashi , Shigeki Nakayama , Akira Mikami , Kenji Sakurai , Junichi Matsuo , Yoshihisa Tsukamoto , Hiroshi Otsuki , Ichiro Yamamoto
CPC分类号： F01N3/208 , B01D53/9477 , B01D53/9495 , B01D2255/904 , F01N3/0253 , F01N3/035 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N9/002 , F01N13/009 , F01N2510/06 , F01N2560/026 , F01N2610/02 , F01N2900/08 , Y02T10/24 , Y02T10/47
摘要： In order to suppress ammonia from flowing out during regeneration treatment of a filter carrying an SCR catalyst, the prevent invention provides an exhaust emission control system of an internal combustion engine, including a first stage catalyst having an oxidation function, a fuel supply device configured to supply fuel to the first stage catalyst, a filter provided in the exhaust passage downstream of the first stage catalyst and carrying a selective redaction type NOx catalyst, an ammonia supply device configured to supply ammonia to the filter, a filter-regeneration-treatment executing unit configured to execute filter regeneration treatment, and a control unit configured to supply, when the filter regeneration treatment is not executed, the ammonia in an amount corresponding to an amount of the NOx emitted from the internal combustion engine, and to supply, when the filter regeneration treatment is executed, the ammonia in an amount corresponding to an amount of the NOx obtained by subtracting, from the amount of the NOx emitted from the internal combustion engine, an amount of the NOx reduced by the fuel which passes through the first stage catalyst.
摘要翻译： 为了在携带SCR催化剂的过滤器的再生处理期间抑制氨流出，本发明提供了一种内燃机的废气排放控制系统，其包括具有氧化功能的第一级催化剂，燃料供应装置构造成 向第一阶段催化剂供给燃料，设置在第一阶段催化剂下游的排气通道中并且携带选择性配位型NOx催化剂的过滤器，被配置为向过滤器供应氨的氨供给装置，过滤器再生处理执行单元 被配置为执行过滤器再生处理，以及控制单元，被配置为当不执行所述过滤器再生处理时，提供与从所述内燃机排放的NOx的量对应的量的氨，并且当所述过滤器 执行再生处理，氨的量对应于所获得的NOx的量 通过从由内燃机排出的NOx的量减去通过第一级催化剂的燃料还原的NOx量。
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公开(公告)号：US09464554B2
公开(公告)日：2016-10-11
申请号：US14648727
申请日：2012-12-03
申请人： Junichi Matsuo , Nobumoto Ohashi , Shigeki Nakayama , Kenji Sakurai , Akira Mikami , Keishi Takada , Yoshihisa Tsukamoto , Hiroshi Otsuki , Ichiro Yamamoto
发明人： Junichi Matsuo , Nobumoto Ohashi , Shigeki Nakayama , Kenji Sakurai , Akira Mikami , Keishi Takada , Yoshihisa Tsukamoto , Hiroshi Otsuki , Ichiro Yamamoto
CPC分类号： F01N9/00 , F01N3/025 , F01N3/0253 , F01N3/035 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N3/208 , F01N9/002 , F01N11/002 , F01N13/009 , F01N2430/00 , F01N2560/06 , F01N2560/14 , F01N2570/18 , F01N2610/02 , F01N2900/0416 , F01N2900/1404 , F01N2900/1602 , F02D41/024 , F02D41/029 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： In an exhaust gas purification system for an internal combustion engine provided with a filter supporting an SCR catalyst, the present invention is intended to suppress HC and CO from being discharged to the outside at the time of the execution of filter regeneration processing, and to carry out the filter regeneration processing in an efficient manner. In the present invention, a post-catalyst having an oxidation function is arranged in an exhaust passage at the downstream side of the filter. Then, when the temperature of the post-catalyst is lower than a predetermined activation temperature at the time the execution of the filter regeneration processing is requested, the temperature of the post-catalyst is raised by carrying out control of raising the temperature of the exhaust gas discharged from the internal combustion engine, and control increasing the flow rate of the exhaust gas, before the execution of the filter regeneration processing.
摘要翻译： 在具有支撑SCR催化剂的过滤器的内燃机的排气净化系统中，本发明旨在在执行过滤器再生处理时抑制HC和CO被排出到外部，并且携带 以有效的方式进行过滤器再生处理。 在本发明中，具有氧化功能的后催化剂配置在过滤器的下游侧的排气通路中。 然后，当要求执行过滤器再生处理时，当催化剂的温度低于预定活化温度时，通过进行提高排气温度的控制来提高后催化剂的温度 在进行过滤器再生处理之前，从内燃机排出的气体，并且控制增加废气的流量。
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公开(公告)号：US20150292378A1
公开(公告)日：2015-10-15
申请号：US14443214
申请日：2012-11-16
申请人： Yoshihisa Tsukamoto , Nobumoto Ohashi , Shigeki Nakayama , Akira Mikami , Kenji Sakurai , Hiroshi Otsuki , Junichi Matsuo , Keishi Takada , Ichiro Yamamoto
发明人： Yoshihisa Tsukamoto , Nobumoto Ohashi , Shigeki Nakayama , Akira Mikami , Kenji Sakurai , Hiroshi Otsuki , Junichi Matsuo , Keishi Takada , Ichiro Yamamoto
CPC分类号： F01N3/0253 , B01D53/0415 , B01D53/9418 , B01D53/944 , B01D53/9477 , B01D53/9495 , B01D2251/2062 , B01D2255/1021 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9155 , B01D2257/406 , B01D2257/502 , B01D2257/702 , B01D2258/012 , F01N3/021 , F01N3/0231 , F01N3/0293 , F01N3/035 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N3/208 , F01N3/2882 , F01N9/002 , F01N13/009 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2610/03 , F01N2900/1404 , F01N2900/1602 , F01N2900/1622 , F02D41/029 , F02D41/405 , F02D2200/0802 , F02D2200/0812 , Y02T10/24 , Y02T10/44 , Y02T10/47
摘要： An object of the present invention is to suppress HC, CO, and NOx from being discharged to the outside when a filter regeneration process is executed in an exhaust gas purification system for an internal combustion engine provided with a filter including an SCR catalyst carried thereon. In the present invention, a post-catalyst is provided for an exhaust gas passage disposed on a downstream side from the filter. The post-catalyst has an oxidizing function, and the post-catalyst has such a function that the production of N2 based on the oxidation of ammonia is facilitated in a predetermined first temperature area. Further, when the filter regeneration process is executed, the temperature of the post-catalyst is adjusted to be in the first temperature area while adjusting the temperature of the filter to be in a predetermined second temperature area lower than a filter regeneration temperature during a certain period of time.
摘要翻译： 本发明的目的在于，在具有载持有SCR催化剂的过滤器的内燃机的排气净化系统中进行过滤器再生处理时，能够抑制HC，CO，NOx排出到外部。 在本发明中，为从过滤器的下游侧设置的排气通道设置有后催化剂。 后催化剂具有氧化功能，并且后催化剂具有在预定的第一温度区域中促进基于氨的氧化的N 2的产生的功能。 此外，当执行过滤器再生处理时，将催化剂的温度调节到第一温度区域，同时在某一特定过程中将过滤器的温度调节到低于过滤器再生温度的预定的第二温度区域 一段的时间。
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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
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。
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公开(公告)号：US09861959B2
公开(公告)日：2018-01-09
申请号：US14783326
申请日：2014-04-07
CPC分类号： B01J23/10 , B01D53/94 , B01D53/944 , B01D53/9477 , B01D2255/2042 , B01D2255/2045 , B01D2255/2061 , B01D2255/2063 , B01D2255/2066 , B01D2255/2068 , B01D2255/20715 , B01D2255/407 , B01D2258/012 , B01J23/34 , B01J23/63 , B01J35/04 , B01J37/0248 , B01J37/031 , B01J2523/00 , B01J2523/3706 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , B01J2523/3712 , B01J2523/36 , B01J2523/24 , B01J2523/25 , B01J2523/3756 , B01J2523/72 , B01J2523/41
摘要： An exhaust gas purifying catalyst of the present invention includes: a first metal oxide selected from the group of praseodymium oxide, terbium oxide, and a combination thereof; a second metal oxide that is neodymium oxide; a third metal oxide that is zirconia or a combination of zirconia and ceria; and a fourth metal oxide selected from the group of lanthanum oxide, yttrium oxide, barium oxide, calcium oxide, strontium oxide, silicon oxide and a combination thereof.
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公开(公告)号：US09494072B2
公开(公告)日：2016-11-15
申请号：US14116502
申请日：2013-02-20
申请人： Kenji Sakurai , Kohei Yoshida , Yuki Bisaiji , Shigeki Nakayama
发明人： Kenji Sakurai , Kohei Yoshida , Yuki Bisaiji , Shigeki Nakayama
CPC分类号： F01N9/00 , F01N3/0842 , F01N3/101 , F01N2510/0684 , F01N2900/08 , F02D41/0052 , F02D41/0275 , F02D41/1454 , F02D41/1475 , F02D2200/0806 , F02D2200/0814 , Y02T10/22
摘要： A three way catalyst and an NOx storage catalyst are arranged in an engine exhaust passage. In an engine low load operating region, a combustion is performed under a lean air-fuel ratio, and when NOx should be released from the NOx storage catalyst, the air-fuel ratio in a combustion chamber is made rich. In an engine medium load operating region, the base air-fuel ratio is made lower as compared with the engine low load operating region, and the air-fuel ratio in the combustion chamber is made rich at a shorter period as compared with the engine low load operating region. When the operating state of the engine is switched from the engine low load operating region to the engine medium load operating region, the air-fuel ratio in the combustion chamber is temporarily made rich, and the degree of richness of the air-fuel ratio at this time is stepwise lowered.
摘要翻译： 在发动机排气通道中布置有三元催化剂和NOx储存催化剂。 在发动机低负荷运转区域中，在稀空燃比下进行燃烧，当从NOx吸留催化剂释放NOx时，燃烧室内的空燃比变浓。 在发动机中负荷运转区域中，与发动机低负荷运转区域相比基本空燃比变低，与发动机低位相比，燃烧室中的空燃比较短 负载工作区域。 当发动机的运转状态从发动机低负荷运转区域切换到发动机中负荷运转区域时，燃烧室内的空燃比暂时变浓，空燃比的丰富度在 这一次逐步降低。
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9.发明授权公开(公告)号：US09494097B2
公开(公告)日：2016-11-15
申请号：US14234015
申请日：2012-08-28
申请人： Kenji Sakurai , Kohki Nakamura , Shigeki Nakayama , Kohei Yoshida , Yuki Bisaiji
发明人： Kenji Sakurai , Kohki Nakamura , Shigeki Nakayama , Kohei Yoshida , Yuki Bisaiji
CPC分类号： F02D41/1475 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N13/009 , F01N2430/06 , F01N2510/06 , F02D41/0235 , F02D41/0275 , F02D41/1456 , F02D41/146 , F02D2200/0806 , F02D2250/36 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： The NOx storage catalyst and the NOx selective reduction catalyst are arranged in the engine exhaust passage. In the engine low load operating region, a combustion is performed in the combustion chamber under a lean base air-fuel ratio and the air-fuel ratio in the combustion chamber is made rich when NOx should be released from the NOx storage catalyst. In the engine medium load operating region, the base air-fuel ratio is made smaller, a degree of richness of the air-fuel ratio is made smaller, and a period in which the air-fuel ratio is made rich is made shorter so that an amount of ammonia which is produced per unit time when the air-fuel ratio is made rich falls compared with the time of engine low load operation.
摘要翻译： NOx吸留催化剂和NOx选择还原催化剂配置在发动机排气通路内。 在发动机低负荷运转区域中，在稀燃基础空燃比下，在燃烧室内进行燃烧，并且当从NO x吸留催化剂释放NOx时，燃烧室内的空燃比变浓。 在发动机中负荷运转区域中，使基本空燃比变小，使空燃比的丰富度变小，使空燃比浓的时间缩短， 当空燃比富时，每单位时间产生的氨的量与发动机低负荷运转时相比下降。
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10.发明申请公开(公告)号：US20150204261A1
公开(公告)日：2015-07-23
申请号：US14234015
申请日：2012-08-28
申请人： Kenji Sakurai , Kohki Nakamura , Shigeki Nakayama , Kohei Yoshida , Yuki Bisaiji
发明人： Kenji Sakurai , Kohki Nakamura , Shigeki Nakayama , Kohei Yoshida , Yuki Bisaiji
CPC分类号： F02D41/1475 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N13/009 , F01N2430/06 , F01N2510/06 , F02D41/0235 , F02D41/0275 , F02D41/1456 , F02D41/146 , F02D2200/0806 , F02D2250/36 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： The NOx storage catalyst and the NOx selective reduction catalyst are arranged in the engine exhaust passage. In the engine low load operating region, a combustion is performed in the combustion chamber under a lean base air-fuel ratio and the air-fuel ratio in the combustion chamber is made rich when NOx should be released from the NOx storage catalyst. In the engine medium load operating region, the base air-fuel ratio is made smaller, a degree of richness of the air-fuel ratio is made smaller, and a period in which the air-fuel ratio is made rich is made shorter so that an amount of ammonia which is produced per unit time when the air-fuel ratio is made rich falls compared with the time of engine low load operation.
摘要翻译： NOx吸留催化剂和NOx选择还原催化剂配置在发动机排气通路内。 在发动机低负荷运转区域中，在稀燃基础空燃比下，在燃烧室内进行燃烧，并且当从NO x吸留催化剂释放NOx时，燃烧室内的空燃比变浓。 在发动机中负荷运转区域中，使基本空燃比变小，使空燃比的丰富度变小，使空燃比浓的时间缩短， 当空燃比富时，每单位时间产生的氨的量与发动机低负荷运转时相比下降。
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