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公开(公告)号：US08596046B2
公开(公告)日：2013-12-03
申请号：US13262865
申请日：2010-05-20
申请人： Mikio Inoue , Kohei Yoshida , Yuki Bisaiji , Kazuhiro Umemoto
发明人： Mikio Inoue , Kohei Yoshida , Yuki Bisaiji , Kazuhiro Umemoto
IPC分类号： F01N3/00
CPC分类号： F01N3/2073 , B01D53/9418 , B01D53/9422 , B01D53/9477 , B01D2251/2067 , B01D2251/208 , B01D2257/404 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N3/208 , F01N13/009 , F01N2240/30 , F01N2510/06 , F01N2560/025 , F01N2610/02 , F01N2610/03 , F01N2900/08 , F01N2900/1402 , Y02T10/24
摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (16), an exhaust purification catalyst (13), an aqueous urea solution feed valve (17), and an NOx selective reduction catalyst (15) are arranged in that order. A first NOx purification method which makes the concentration of hydrocarbons flowing into the exhaust purification catalyst (13) vibrate by within predetermined ranges of amplitude and period to reduce the NOx, which is contained in exhaust gas in the exhaust purification catalyst (13) and a second NOx purification method which uses the fed aqueous urea solution to reduce the NOx in the NOx selective reduction catalyst (15) are selectively used.
摘要翻译： 在内燃机中，在发动机排气通路内部设置有碳氢化合物供给阀（16），排气净化催化剂（13），尿素水供给阀（17）和NOx选择还原催化剂（15） 以该顺序。 使流入排气净化催化剂（13）的烃浓度在振幅和周期的预定范围内振动的第一NOx净化方法，以减少排气净化催化剂（13）中的废气中所含的NOx和 选择性地使用使用供给的尿素水溶液来还原NOx选择还原催化剂（15）中的NOx的第二NOx净化方法。
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公开(公告)号：US20130259753A1
公开(公告)日：2013-10-03
申请号：US13264594
申请日：2010-12-20
申请人： Mikio Inoue , Kohei Yoshida , Yuki Bisaiji , Kazuhiro Umemoto
发明人： Mikio Inoue , Kohei Yoshida , Yuki Bisaiji , Kazuhiro Umemoto
IPC分类号： B01D53/94
CPC分类号： B01D53/9431 , B01D53/9495 , F01N3/0814 , F01N3/0871 , F01N3/208 , F01N13/009 , F01N2610/03 , F01N2900/0422 , F01N2900/0601 , F01N2900/08 , F01N2900/1402 , F01N2900/1602 , F01N2900/1808 , F01N2900/1812 , Y02T10/24
摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. At the time of engine operation, the amplitude of change of the concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to become within a predetermined range of amplitude by control of at least one of the injection time and injection pressure of hydrocarbons from the hydrocarbon feed valve (15). In this case, when only the injection time of hydrocarbons is controlled, the injection time of hydrocarbons under the same engine operating state is made longer the higher the temperature of the exhaust purification catalyst (13).
摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 在发动机运转时，流入排气净化催化剂（13）的碳氢化合物浓度的变化幅度通过控制喷射时间和喷射压力中的至少一个而变为预定的振幅范围 来自烃进料阀（15）的烃。 在这种情况下，当仅控制烃的喷射时间时，使排气净化催化剂（13）的温度越高，在相同的发动机运转状态下的烃的喷射时间越长。
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公开(公告)号：US20130195724A1
公开(公告)日：2013-08-01
申请号：US13263272
申请日：2010-10-18
申请人： Yuki Bisaiji , Kohei Yoshida , Mikio Inoue , Kazuhiro Umemoto
发明人： Yuki Bisaiji , Kohei Yoshida , Mikio Inoue , Kazuhiro Umemoto
IPC分类号： B01D53/94
CPC分类号： B01D53/9495 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/206 , F01N3/2073 , F01N2240/30 , F01N2290/10 , F01N2510/06 , F01N2610/03 , F01N2900/0422 , F01N2900/1402 , F01N2900/1614 , F02D41/0275 , F02D41/1408 , F02D41/405 , Y02T10/44
摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within 200 ppm or more predetermined amplitude and within a 5 second or more predetermined period. At this time, when a predetermined amount or more of NOx is stored in the exhaust purification catalyst (13) or can be stored, the concentration of hydrocarbons flowing into the exhaust purification catalyst (13) is temporarily increased to desorb NOx which is stored at the exhaust purification catalyst (13).
摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 流入排气净化催化剂（13）的碳氢化合物的浓度在200ppm以上的规定振幅以及5秒以上的规定期间内振动。 此时，当排气净化催化剂（13）中存储了规定量以上的NOx或能够被储存时，流入排气净化催化剂（13）的烃的浓度暂时升高，从而将存储在 排气净化催化剂（13）。
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公开(公告)号：US20130136659A1
公开(公告)日：2013-05-30
申请号：US13581186
申请日：2011-11-30
申请人： Kazuhiro Umemoto , Kohei Yoshida , Mikio Inoue
发明人： Kazuhiro Umemoto , Kohei Yoshida , Mikio Inoue
IPC分类号： B01D53/94
CPC分类号： B01D53/9431 , B01D53/9409 , B01D2251/208 , B01D2255/1021 , B01D2255/1025 , B01D2255/204 , B01D2258/012 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/106 , F01N3/2026 , F01N3/2033 , F01N13/0097 , F01N2240/30 , F01N2510/06 , F01N2900/1602 , F02D41/025 , F02D41/0275 , F02D41/405 , Y02T10/26 , Y02T10/44
摘要： An exhaust purification system of an internal combustion engine is provided with an exhaust purification catalyst which includes an upstream side catalyst and a downstream side catalyst and which makes NOX and hydrocarbons react. The upstream side catalyst has an oxidation ability, while the downstream side catalyst carries precious metal catalyst particles on an exhaust flow surface and is formed with basic exhaust flow surface parts. The exhaust purification catalyst makes the concentration of hydrocarbons vibrate by within a predetermined range of amplitude and by within a predetermined range of period so as to remove the NOX. The upstream side catalyst has a high efficiency temperature at which hydrocarbons can be partially oxidized by a predetermined efficiency.
摘要翻译： 内燃机的排气净化系统具备排气净化催化剂，该排气净化催化剂包括上游侧催化剂和下游侧催化剂，使NOx和烃反应。 上游侧催化剂具有氧化能力，而下游侧催化剂在排气流动面上载有贵金属催化剂颗粒，并形成有碱性废气流表面部分。 排气净化催化剂使得烃的浓度在预定的振幅范围内振动并且在预定的时间范围内，以除去NOX。 上游侧催化剂具有高效率的温度，在该温度下烃可以被预定的效率部分氧化。
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公开(公告)号：US20130058840A1
公开(公告)日：2013-03-07
申请号：US13264649
申请日：2010-05-20
申请人： Mikio Inoue , Kohei Yoshida , Yuki Bisaiji , Kazuhiro Umemoto
发明人： Mikio Inoue , Kohei Yoshida , Yuki Bisaiji , Kazuhiro Umemoto
IPC分类号： B01D53/94
CPC分类号： F01N3/0814 , B01D53/9418 , B01D53/9422 , B01D53/9477 , B01D2251/2067 , B01D2251/208 , B01D2257/404 , B01J23/40 , B01J23/58 , B01J23/63 , B01J37/0244 , F01N3/0842 , F01N3/0871 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N13/009 , F01N2240/30 , F01N2610/03 , F01N2900/0412 , F01N2900/0422 , Y02T10/24 , Y02T10/47
摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (16), an exhaust purification catalyst (13), an aqueous urea solution feed valve (17), and an NOx selective reduction catalyst (15) are arranged in that order. A first NOx purification method which makes the concentration of hydrocarbons flowing into the exhaust purification catalyst (13) vibrate by within predetermined ranges of amplitude and period to reduce the NOx contained in exhaust gas in the exhaust purification catalyst (13) is normally used. A second NOx purification method which uses the fed aqueous urea solution to reduce the NOx in the NOx selective reduction catalyst (15) is used when the fed hydrocarbons exceed the allowable value.
摘要翻译： 在内燃机中，在发动机排气通路内部设置有碳氢化合物供给阀（16），排气净化催化剂（13），尿素水供给阀（17）和NOx选择还原催化剂（15） 以该顺序。 通常使用使排出净化催化剂（13）中的烃浓度在振幅和周期的预定范围内振动以降低排气净化催化剂（13）中的废气中所含的NOx的第一NOx净化方法。 当供给的碳氢化合物超过允许值时，使用使用所供给的尿素水溶液来减少NOx选择还原催化剂（15）中的NOx的第二NOx净化方法。
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公开(公告)号：US20130017121A1
公开(公告)日：2013-01-17
申请号：US13499211
申请日：2011-07-14
申请人： Yuki Bisaiji , Kohei Yoshida , Mikio Inoue , Kazuhiro Umemoto
发明人： Yuki Bisaiji , Kohei Yoshida , Mikio Inoue , Kazuhiro Umemoto
IPC分类号： B01D53/94
CPC分类号： F01N3/0871 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N3/2073 , F01N11/007 , F01N13/009 , F01N2240/30 , F01N2550/05 , F01N2560/025 , F01N2560/14 , F01N2610/03 , F01N2900/0418 , F01N2900/1402 , Y02C20/10 , Y02T10/47
摘要： In an internal combustion engine, inside of an engine exhaust passage, an upstream side air-fuel ratio sensor (23), a hydrocarbon feed valve (15), an exhaust purification catalyst (13), and a downstream side air-fuel ratio sensor (24) are arranged in this order from the upstream. At the time of engine operation, the injection amount of hydrocarbons from the hydrocarbon feed valve (15) is controlled based on the air-fuel ratio detected by the upstream side air-fuel ratio sensor (23) and the downstream side air-fuel ratio sensor (24) so that the amplitude of change of the concentration of hydrocarbons which flow into the exhaust purification catalyst (13) becomes within a predetermined range of amplitude.
摘要翻译： 在内燃机中，发动机排气通路内侧，上游侧空燃比传感器（23），烃供给阀（15），排气净化催化剂（13）以及下游侧空燃比传感器 （24）以上述顺序排列。 在发动机运转时，基于由上游侧空燃比传感器（23）检测出的空燃比和下游侧空燃比控制来自烃供给阀（15）的烃的喷射量 传感器（24），使得流入排气净化催化剂（13）的烃浓度的变化幅度变得在预定的幅度范围内。
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公开(公告)号：US08434297B2
公开(公告)日：2013-05-07
申请号：US12673888
申请日：2009-06-15
CPC分类号： F01N3/0871 , B01D53/9409 , B01D2251/208 , B01D2255/91 , B01D2257/402 , B01D2257/404 , B01D2258/012 , F01N3/0828 , F01N3/36 , F01N2570/145 , F01N2610/03 , Y02A50/2344 , Y02C20/10 , Y02T10/20
摘要： An electronic control unit executing an algorithm so as to operate an exhaust purification system of an engine. The algorithm (1) commences a regeneration treatment by causing an amount of fuel supplied to a combustion process of the engine to increase so as to change an air-fuel ratio of exhaust gas of the engine from a first lean air-fuel ratio to a set rich air-fuel ratio and (2) causes uncombusted fuel to be supplied to a NOx catalyst device during at least one of: a first period in which an air-fuel ratio of the exhaust gas within the NOx catalyst device changes from the first lean air-fuel ratio to the set rich air-fuel ratio when the regeneration treatment is started; and a second period after an air-fuel ratio of the exhaust gas within the NOx catalyst device becomes a ratio indicating completion of the regeneration treatment.
摘要翻译： 一种执行算法以操作发动机的排气净化系统的电子控制单元。 算法（1）通过使供给到发动机的燃烧过程的燃料量增加而开始再生处理，以将发动机的排气的空燃比从第一稀空燃比改变为 设定浓空燃比，（2）在NOx催化剂装置中的排气的空燃比从第一时间变化的第一期间中的至少一个期间使未燃燃料供给到NOx催化剂装置 当再生处理开始时，稀空燃比与设定的浓空燃比; 并且在NOx催化剂装置内的排气的空燃比成为表示再生处理完成的比例的第二期间。
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公开(公告)号：US20130183203A1
公开(公告)日：2013-07-18
申请号：US13260986
申请日：2010-10-04
IPC分类号： B01D53/94
CPC分类号： B01D53/9431 , B01D53/9422 , B01D2255/1021 , B01D2255/1025 , B01D2255/20715 , B01D2255/2092 , B01D2255/91 , B01J23/42 , B01J23/464 , B01J23/58 , B01J23/63 , B01J35/0006 , B01J35/04 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/36 , F01N2240/30 , F01N2610/03
摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The exhaust purification catalyst (13) is comprised of a mixture of a first catalyst in which platinum (51) and a basic layer (52) are carried on alumina (50) and a second catalyst in which rhodium (56) is carried on zirconia (55). The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).
摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 废气净化催化剂（13）由在氧化铝（50）上载有铂（51）和碱性层（52）的第一催化剂和其中铑（56）载于氧化锆上的第二催化剂的混合物组成 （55）。 流入排气净化催化剂（13）的碳氢化合物的浓度在200ppm以上的振幅的预定范围内振动，并且在5秒以下的预定范围内，由此含有 在排气净化催化剂（13）中的排气减少。
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公开(公告)号：US09034267B2
公开(公告)日：2015-05-19
申请号：US13260986
申请日：2010-10-04
IPC分类号： B01D53/00 , B01D53/94 , F01N3/08 , B01J35/00 , B01J23/42 , B01J23/46 , B01J23/58 , B01J23/63 , F01N3/36 , B01J35/04
CPC分类号： B01D53/9431 , B01D53/9422 , B01D2255/1021 , B01D2255/1025 , B01D2255/20715 , B01D2255/2092 , B01D2255/91 , B01J23/42 , B01J23/464 , B01J23/58 , B01J23/63 , B01J35/0006 , B01J35/04 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/36 , F01N2240/30 , F01N2610/03
摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The exhaust purification catalyst (13) is comprised of a mixture of a first catalyst in which platinum (51) and a basic layer (52) are carried on alumina (50) and a second catalyst in which rhodium (56) is carried on zirconia (55). The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).
摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 废气净化催化剂（13）由在氧化铝（50）上载有铂（51）和碱性层（52）的第一催化剂和其中铑（56）载于氧化锆上的第二催化剂的混合物组成 （55）。 流入排气净化催化剂（13）的碳氢化合物的浓度在200ppm以上的振幅的预定范围内振动，并且在5秒以下的预定范围内，由此含有 在排气净化催化剂（13）中的排气减少。
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公开(公告)号：US20110203260A1
公开(公告)日：2011-08-25
申请号：US13124767
申请日：2009-11-02
CPC分类号： F02D41/0275 , F01N3/0842 , F01N3/0871 , F01N3/103 , F01N13/009 , F01N2570/145 , F02B37/00 , F02D41/0055 , F02D41/402 , F02D2041/0015 , F02D2200/0802 , F02D2250/36 , Y02A50/2344 , Y02C20/10
摘要： An exhaust purification system of an internal combustion engine arranging in an engine exhaust passage an NOx storing reducing catalyst storing NOx contained in exhaust gas when an air-fuel ratio of inflowing exhaust gas is lean and reducing and purifying stored NOx when the air-fuel ratio of the inflowing exhaust gas becomes a stoichiometric air-fuel ratio or rich, which system is provided with an NOx production reducing means for reducing an amount of production of NOx produced in a combustion chamber due to change of a combustion state of the engine and temporarily reduces the amount of production of NOx by the NOx production reducing means when an amount of N2O flowing out from the NOx storing reducing catalyst is anticipated to exceed an allowable amount.
摘要翻译： 一种内燃机的排气净化系统，其在发动机排气通路中配置NOx吸留还原催化剂，所述NOx吸留还原催化剂在所述排出气体的空燃比为稀的情况下存储废气中所含的NOx，并且当所述空燃比 流入的废气成为化学计量空燃比或浓度，该系统设置有NOx生成减少装置，用于减少由于发动机的燃烧状态的变化和暂时地在燃烧室中产生的NOx的产生量 当从NOx存储还原催化剂流出的N2O的量被预计超过允许量时，通过NOx生成减少装置来减少NOx的产生量。
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