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公开(公告)号：US20150192047A1
公开(公告)日：2015-07-09
申请号：US14409743
申请日：2012-06-20
CPC分类号： F01N3/0842 , B01D53/9431 , B01D53/9495 , F01N3/021 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N13/009 , F01N2610/02 , F01N2900/1616 , F01N2900/1812 , Y02T10/24 , Y02T10/47
摘要： An object of the present invention is to provide a technique with which an amount of reducing agent adsorbed to a selective reduction type NOx catalyst provided in an exhaust passage of an internal combustion engine can be controlled to a target adsorption amount. In an exhaust gas purification system for an internal combustion engine according to the present invention, when a reducing agent adsorption amount adsorbed on a selective reduction type NOx catalyst is held at a target adsorption amount, a reducing agent supply amount supplied from a supply apparatus per unit time is controlled to an amount obtained by adding a predetermined amount to a reduction consumption amount, which is an amount of reducing agent consumed per unit time by the selective reduction type NOx catalyst for NOx reduction.
摘要翻译： 本发明的目的是提供一种技术，其中可以将设置在内燃机的排气通道中的选择还原型NOx催化剂吸附的还原剂的量控制在目标吸附量。 在本发明的内燃机的废气净化系统中，当吸附在选择还原型NOx催化剂上的还原剂吸附量保持在目标吸附量时，从供给装置供给的还原剂供给量 单位时间被控制为通过将预定量添加到通过用于NOx还原的选择还原型NOx催化剂的每单位时间消耗的还原剂量的减少消耗量而获得的量。
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2.发明申请公开(公告)号：US20150184569A1
公开(公告)日：2015-07-02
申请号：US14409652
申请日：2012-06-20
CPC分类号： F01N3/208 , B01D53/9431 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2900/0416 , F01N2900/0601 , F01N2900/1616 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： To estimate an amount of reducing agent adsorbed to a selective reduction type NOx catalyst with a higher degree of precision, an amount of variation over a predetermined time in a reducing agent amount adsorbed to a selective reduction type NOx catalyst is calculated from an upper limit value of a reducing agent amount that is adsorbed to the selective reduction type NOx catalyst when the reducing agent is supplied continuously by a supply unit, which is calculated on the basis of a temperature of the selective reduction type NOx catalyst, and the reducing agent amount adsorbed to the selective reduction type NOx catalyst, whereupon a reducing agent amount adsorbed to the selective reduction type NOx catalyst following the elapse of the predetermined time is estimated by adding the variation amount to the reducing agent amount adsorbed to the selective reduction type NOx catalyst.
摘要翻译： 为了以更高的精度估计吸附到选择还原型NOx催化剂的还原剂的量，从吸附到选择还原型NOx催化剂的还原剂量中的预定时间内的变化量从上限值 当由选择还原型NOx催化剂的温度计算的供应单元连续供给还原剂时吸附到选择还原型NOx催化剂上的还原剂量和还原剂吸附量的还原剂量 涉及选择还原型NOx催化剂，通过将吸附在选择还原型NOx催化剂上的还原剂量的变化量加到预定时间后吸附到选择还原型NOx催化剂上的还原剂量来估计。
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公开(公告)号：US09593610B2
公开(公告)日：2017-03-14
申请号：US14409743
申请日：2012-06-20
CPC分类号： F01N3/0842 , B01D53/9431 , B01D53/9495 , F01N3/021 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N13/009 , F01N2610/02 , F01N2900/1616 , F01N2900/1812 , Y02T10/24 , Y02T10/47
摘要： An object of the present invention is to provide a technique with which an amount of reducing agent adsorbed to a selective reduction type NOx catalyst provided in an exhaust passage of an internal combustion engine can be controlled to a target adsorption amount. In an exhaust gas purification system for an internal combustion engine according to the present invention, when a reducing agent adsorption amount adsorbed on a selective reduction type NOx catalyst is held at a target adsorption amount, a reducing agent supply amount supplied from a supply apparatus per unit time is controlled to an amount obtained by adding a predetermined amount to a reduction consumption amount, which is an amount of reducing agent consumed per unit time by the selective reduction type NOx catalyst for NOx reduction.
摘要翻译： 本发明的目的是提供一种技术，其中可以将设置在内燃机的排气通道中的选择还原型NOx催化剂吸附的还原剂的量控制在目标吸附量。 在本发明的内燃机的废气净化系统中，当吸附在选择还原型NOx催化剂上的还原剂吸附量保持在目标吸附量时，从供给装置供给的还原剂供给量 单位时间被控制为通过将预定量添加到通过用于NOx还原的选择还原型NOx催化剂的每单位时间消耗的还原剂量的减少消耗量而获得的量。
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公开(公告)号：US09238985B2
公开(公告)日：2016-01-19
申请号：US14409652
申请日：2012-06-20
CPC分类号： F01N3/208 , B01D53/9431 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2900/0416 , F01N2900/0601 , F01N2900/1616 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： To estimate an amount of reducing agent adsorbed to a selective reduction type NOx catalyst with a higher degree of precision, an amount of variation over a predetermined time in a reducing agent amount adsorbed to a selective reduction type NOx catalyst is calculated from an upper limit value of a reducing agent amount that is adsorbed to the selective reduction type NOx catalyst when the reducing agent is supplied continuously by a supply unit, which is calculated on the basis of a temperature of the selective reduction type NOx catalyst, and the reducing agent amount adsorbed to the selective reduction type NOx catalyst, whereupon a reducing agent amount adsorbed to the selective reduction type NOx catalyst following the elapse of the predetermined time is estimated by adding the variation amount to the reducing agent amount adsorbed to the selective reduction type NOx catalyst.
摘要翻译： 为了以更高的精度估计吸附到选择还原型NOx催化剂的还原剂的量，从吸附到选择还原型NOx催化剂的还原剂量中的预定时间内的变化量从上限值 当由选择还原型NOx催化剂的温度计算的供应单元连续供给还原剂时吸附到选择还原型NOx催化剂上的还原剂量和还原剂吸附量的还原剂量 涉及选择还原型NOx催化剂，通过将吸附在选择还原型NOx催化剂上的还原剂量的变化量加到预定时间后吸附到选择还原型NOx催化剂上的还原剂量来估计。
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公开(公告)号：US20150238904A1
公开(公告)日：2015-08-27
申请号：US14409692
申请日：2012-06-20
IPC分类号： B01D53/94
CPC分类号： B01D53/9495 , B01D53/9431 , F01N3/208 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2610/146 , F01N2900/0416 , F01N2900/08 , F01N2900/1602 , F01N2900/1616 , F01N2900/1622 , Y02T10/24
摘要： To estimate an amount of reducing agent adsorbed to a selective reduction type NOx catalyst with a higher degree of precision while maintaining a condition in which NOx can be purified by the selective reduction type NOx catalyst, the present invention includes: an upper limit value calculation unit that calculates an upper limit value of a reducing agent amount that is adsorbed to the selective reduction type NOx catalyst when the reducing agent is supplied continuously during a steady state operation in an internal combust ion engine; and an estimation unit that estimates an upper limit value calculated by the upper limit value calculation unit when the reducing agent is supplied for at least a predetermined time during the steady state operation in the internal combustion engine to be the reducing agent amount adsorbed to the selective reduction type NOx catalyst at that time.
摘要翻译： 为了在保持能够通过选择还原型NOx催化剂净化NOx的条件的同时，以更高的精度估计吸附到选择还原型NOx催化剂的还原剂的量，本发明包括：上限值计算单元 计算在内部燃烧式离子发动机的稳态运行中连续供给还原剂时吸附到所述选择还原型NOx催化剂的还原剂量的上限值; 以及估计单元，其估计在所述内燃机的稳态运行期间将所述还原剂供给至少预定时间时由所述上限值计算单元计算的上限值作为所述选择性吸附剂的还原剂量 此时还原型NOx催化剂。
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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：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：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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