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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：US20110023465A1
公开(公告)日：2011-02-03
申请号：US12674043
申请日：2009-05-19
CPC分类号： F01N3/0814 , B01D53/9418 , B01D53/9422 , B01D53/9481 , B01D2255/104 , B01D2258/012 , B01D2258/014 , F01N3/023 , F01N3/035 , F01N3/0842 , F01N3/0871 , F01N3/0885 , F01N3/2066 , F01N3/208 , F01N13/009 , F01N2370/02 , F01N2510/06 , F01N2550/03 , F01N2610/02 , F01N2900/14 , F01N2900/1621 , F02D41/025 , F02D41/0275 , F02D41/028 , F02D41/029 , Y02T10/24 , Y02T10/26
摘要： An exhaust purification system of an internal combustion engine comprising an NOX holding material arranged in an engine exhaust passage, having a catalyst metal containing silver, holding NOX contained in the exhaust gas in the form of silver nitrate by the catalyst metal when an air-fuel ratio of inflowing exhaust gas is lean, and releasing the held NOX if the air-fuel ratio of the inflowing exhaust gas becomes a stoichiometric air-fuel ratio or rich. The NOX holding material has a scatter temperature at which catalyst metal scatters in the form of silver nitrate if the temperature rises. When it is time to perform control raising the temperature of the NO holding material to the scatter temperature or above, the NOX held in the NOX holding material is released by making the air-fuel ratio of the exhaust gas flowing into the NO holding material the stoichiometric air-fuel ratio or rich.
摘要翻译： 一种内燃机的排气净化系统，其包括设置在发动机排气通路中的NO x保持材料，具有含有银的催化剂金属，当空气燃料时，通过催化剂金属将含有硝酸银形式的废气中包含的NO x 流入废气的比例是稀的，如果流入的废气的空燃比变成理论空燃比，则释放保持的NOX。 如果温度升高，NO x保持材料具有散射温度，催化剂金属以硝酸银的形式散射。 当控制将NO保持材料的温度提高到散射温度以上时，通过使排气的空燃比流入NO保持材料而释放保持在NO X保持材料中的NOX 理论空燃比或浓度。
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公开(公告)号：US08443592B2
公开(公告)日：2013-05-21
申请号：US13265713
申请日：2009-05-18
IPC分类号： F01N3/10
CPC分类号： F01N3/0814 , F01M1/10 , F01M2001/1028 , F01N3/0842 , F01N3/085 , F01N3/0871 , F01N2900/1612 , F02M37/0047 , F16N2250/00
摘要： An exhaust purification system is provided with an NOx storage reduction catalyst arranged in an exhaust passage and an SOx trap material arranged upstream of the NOx storage reduction catalyst and removes SOx contained in exhaust gas. A main flow path has a secondary flow path connected to it. In the secondary flow path, a removal device is arranged for removing the sulfur constituent contained in fuel. The secondary flow path includes an opening and closing device. When the SOx removal rate of the SOx trap material becomes a predetermined removal rate judgment value or less or the concentration of the SOx which flows into the SOx trap material becomes a predetermined concentration judgment value or more, at least part of the fuel flowing through a main flow path is made to flow into the secondary flow path and run through the removal device.
摘要翻译： 排气净化系统设置有布置在排气通道中的NOx储存还原催化剂和设置在NOx存储还原催化剂上游的SOx捕集材料，并且除去废气中所含的SO x。 主流路连接有二次流路。 在二次流路中，设置有去除装在燃料中的硫成分的去除装置。 二次流路包括打开和关闭装置。 当SOx捕集材料的SO x去除率变为预定的去除率判定值或更小或者流入SOx捕集材料的SO x的浓度变为预定浓度判定值或更高时，流经一氧化碳 使主流路流入二次流路并穿过去除装置。
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公开(公告)号：US20120055143A1
公开(公告)日：2012-03-08
申请号：US13265713
申请日：2009-05-18
IPC分类号： F01N3/10
CPC分类号： F01N3/0814 , F01M1/10 , F01M2001/1028 , F01N3/0842 , F01N3/085 , F01N3/0871 , F01N2900/1612 , F02M37/0047 , F16N2250/00
摘要： An exhaust purification system is provided with an NOx storage reduction catalyst arranged in an exhaust passage and an SOx trap material arranged upstream of the NOx storage reduction catalyst and removes SOx contained in exhaust gas. A main flow path has a secondary flow path connected to it. In the secondary flow path, a removal device is arranged for removing the sulfur constituent contained in fuel. The secondary flow path includes an opening and closing device. When the SOx removal rate of the SOx trap material becomes a predetermined removal rate judgment value or less or the concentration of the SOx which flows into the SOx trap material becomes a predetermined concentration judgment value or more, at least part of the fuel flowing through a main flow path is made to flow into the secondary flow path and run through the removal device.
摘要翻译： 排气净化系统设置有布置在排气通道中的NOx储存还原催化剂和设置在NOx存储还原催化剂上游的SOx捕集材料，并且除去废气中所含的SO x。 主流路连接有二次流路。 在二次流路中，设置有去除装在燃料中的硫成分的去除装置。 二次流路包括打开和关闭装置。 当SOx捕集材料的SO x去除率变为预定的去除率判定值或更小或者流入SOx捕集材料的SO x的浓度变为预定浓度判定值或更高时，流经一氧化碳 使主流路流入二次流路并穿过去除装置。
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5.发明授权公开(公告)号：US09181842B2
公开(公告)日：2015-11-10
申请号：US13144258
申请日：2010-01-08
申请人： Kazuhiro Umemoto , Hiromasa Nishioka , Yoshihisa Tsukamoto , Junichi Matsuo , Takamitsu Asanuma , Takao Fukuma , Kouhei Yoshida , Daichi Imai , Yuka Nakata
发明人： Kazuhiro Umemoto , Hiromasa Nishioka , Yoshihisa Tsukamoto , Junichi Matsuo , Takamitsu Asanuma , Takao Fukuma , Kouhei Yoshida , Daichi Imai , Yuka Nakata
CPC分类号： F01N11/002 , F01N3/085 , F01N3/0885 , F01N2510/00 , F01N2550/02 , F01N2560/027 , F01N2560/06 , F01N2560/20 , F01N2570/04 , F02D41/1446 , G01K2205/04 , Y02T10/20 , Y02T10/47
摘要： A temperature sensor includes temperature detecting means and at least one of a catalyst and an adsorbent applied to the surface of the temperature detecting means. At least one of the catalyst and the adsorbent catalyzes an exothermic reaction of a reactant in gas on the temperature detecting means. A temperature that is increased by the exothermic reaction is detected by the temperature detecting means. The catalytic efficiency for the exothermic reaction of at least one of the catalyst and the adsorbent is reduced by sulfur poisoning. The temperature sensor is disposed upstream of an exhaust purification system. Accordingly, it is determined that the temperature sensor is subjected to sulfur poisoning if the temperature detected by the temperature sensor is below a prescribed temperature.
摘要翻译： 温度传感器包括温度检测装置和施加到温度检测装置的表面的催化剂和吸附剂中的至少一种。 催化剂和吸附剂中的至少一种催化气体中的反应物在温度检测装置上的放热反应。 通过温度检测装置检测由放热反应增加的温度。 催化剂和吸附剂中的至少一种的放热反应的催化效率由于硫中毒而降低。 温度传感器设置在排气净化系统的上游。 因此，如果温度传感器检测到的温度低于规定温度，则判断为温度传感器受到硫中毒。
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6.发明申请公开(公告)号：US20110271659A1
公开(公告)日：2011-11-10
申请号：US13144258
申请日：2010-01-08
申请人： Kazuhiro Umemoto , Hiromasa Nishioka , Yoshihisa Tsukamoto , Junichi Matsuo , Takamitsu Asanuma , Takao Fukuma , Kouhei Yoshida , Daichi Imai , Yuka Nakata
发明人： Kazuhiro Umemoto , Hiromasa Nishioka , Yoshihisa Tsukamoto , Junichi Matsuo , Takamitsu Asanuma , Takao Fukuma , Kouhei Yoshida , Daichi Imai , Yuka Nakata
CPC分类号： F01N11/002 , F01N3/085 , F01N3/0885 , F01N2510/00 , F01N2550/02 , F01N2560/027 , F01N2560/06 , F01N2560/20 , F01N2570/04 , F02D41/1446 , G01K2205/04 , Y02T10/20 , Y02T10/47
摘要： A temperature sensor includes temperature detecting means and at least one of a catalyst and an adsorbent applied to the surface of the temperature detecting means. At least one of the catalyst and the adsorbent catalyzes an exothermic reaction of a reactant in gas on the temperature detecting means. A temperature that is increased by the exothermic reaction is detected by the temperature detecting means. The catalytic efficiency for the exothermic reaction of at least one of the catalyst and the adsorbent is reduced by sulfur poisoning. The temperature sensor is disposed upstream of an exhaust purification system. Accordingly, it is determined that the temperature sensor is subjected to sulfur poisoning if the temperature detected by the temperature sensor is below a prescribed temperature.
摘要翻译： 温度传感器包括温度检测装置和施加到温度检测装置的表面的催化剂和吸附剂中的至少一种。 催化剂和吸附剂中的至少一种催化气体中的反应物在温度检测装置上的放热反应。 通过温度检测装置检测由放热反应增加的温度。 催化剂和吸附剂中的至少一种的放热反应的催化效率由于硫中毒而降低。 温度传感器设置在排气净化系统的上游。 因此，如果温度传感器检测到的温度低于规定温度，则判断为温度传感器受到硫中毒。
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公开(公告)号：US20110209462A1
公开(公告)日：2011-09-01
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： In an exhaust purification system of an internal combustion engine, comprising a NOX catalyst device, which can satisfactorily store NOX in the exhaust gas when the concentration of oxygen in the exhaust gas is high and can release the stored NOX and purify the released NOX to N2 by reducing materials in the exhaust gas when the concentration of oxygen is decreased as a regeneration treatment, the regeneration treatment is carried out to change a combustion air-fuel ratio from a lean air-fuel ratio to a set rich air-fuel ratio, and N2O reducing material is supplied to the NOX catalyst device during at least one of a first period set within a period in which an air-fuel ratio in the exhaust gas within said NOX catalyst device changes from the lean air-fuel ratio to the set rich air-fuel ratio when the regeneration treatment is started and a second period set within a period after an air-fuel ratio in the exhaust gas within the NOX catalyst device becomes the stoichiometric air-fuel ratio when the regeneration treatment is finished.
摘要翻译： 在内燃机的排气净化系统中，包括NO x催化剂装置，当废气中的氧浓度高时能够令人满意地将NO x储存在排气中，能够释放储存的NO x并将释放的NO x净化为N2 当通过再生处理使氧气浓度降低时，通过减少废气中的材料，进行再生处理，以将燃烧空燃比从稀空燃比变为浓空燃比，并且 在所述NO x催化剂装置内的排气中的空燃比从所述稀空燃比变为所述浓空燃比的期间内设定的第一期间中的至少一个中，向所述NO x催化剂装置供给N 2 O还原材料 当再生处理开始时的空燃比和在NO x催化剂装置内的排气中的空燃比后的期间内设定的第二期间成为理论空燃比 o当再生处理完成时。
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公开(公告)号：US20120042636A1
公开(公告)日：2012-02-23
申请号：US13256563
申请日：2009-03-19
IPC分类号： F01N3/18
CPC分类号： F01N3/2066 , B01D53/9422 , B01D53/9477 , B01D2251/208 , B01D2255/91 , B01D2258/012 , B01D2258/014 , F01N3/0814 , F01N3/0842 , F01N3/101 , F01N9/00 , F01N13/02 , F01N2570/14 , F01N2610/03 , F01N2900/1402 , F01N2900/1404 , Y02A50/2344 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： The exhaust purification system of an internal combustion engine is provided with an NOX selective reduction catalyst which is arranged in an engine exhaust passage and which has the function of absorbing NOX which is contained in exhaust gas when an air-fuel ratio of inflowing exhaust gas is lean, releasing the absorbed NOX when the air-fuel ratio of the inflowing exhaust gas becomes a stoichiometric air-fuel ratio or rich, and selectively reducing the NOX and with a fuel addition valve which feeds fuel to the NOX selective reduction catalyst. In the case of the region near the stoichiometric air-fuel ratio in the region where the air-fuel ratio of the exhaust gas flowing into the NOX selective reduction catalyst is lean, the fuel addition valve is used to feed fuel to the NOX selective reduction catalyst to selectively reduce the NOX.
摘要翻译： 内燃机的排气净化系统设置有NO x选择还原催化剂，其设置在发动机排气通路中，并且具有吸收废气中所含的NO x的功能，当流入的排气的空燃比为 当流入的排气的空燃比变为理论空燃比或浓度时，释放吸收的NO x，并且选择性地还原NO x，并且使用向NOX选择还原催化剂供给燃料的燃料添加阀。 在流入NOX选择还原型催化剂的废气的空燃比变稀的区域的化学计量空燃比附近的区域的情况下，使用燃料添加阀将燃料供给NOX选择还原 催化剂选择性还原NOX。
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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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公开(公告)号：US08701393B2
公开(公告)日：2014-04-22
申请号：US13383331
申请日：2009-07-23
申请人： Takamitsu Asanuma , Yoshihisa Tsukamoto , Kazuhiro Umemoto , Junichi Matsuo , Hiromasa Nishioka
发明人： Takamitsu Asanuma , Yoshihisa Tsukamoto , Kazuhiro Umemoto , Junichi Matsuo , Hiromasa Nishioka
CPC分类号： F01N3/0814 , F01N3/0205 , F01N3/085 , F01N3/0864 , F01N3/0871 , F01N9/00 , F01N13/009 , F01N2410/02 , F01N2560/06 , F01N2570/04 , F01N2900/1602 , F01N2900/1626 , F02B37/00 , Y02T10/47
摘要： An internal combustion engine in which an SOx trap catalyst (13) for trapping SOx contained in the exhaust gas contains an oxygen adsorbing and releasing material (54) which can adsorb SO2 contained in the exhaust gas and an SOx storage material (55) which can store SOx in the form of sulfates. The SO2 which is contained in the exhaust gas is chemically adsorbed at the oxygen adsorbing and releasing material (54) without being oxidized. If the temperature of the SOx trap catalyst (13) becomes higher than the start temperature of adsorbed SO2 movement, the SO2 which is chemically adsorbed at the oxygen adsorbing and releasing material (54) is oxidized and stored in the form of sulfates in the SOx storage material (55).
摘要翻译： 一种内燃机，其中用于捕集废气中所含的SOx的SO x捕集催化剂（13）含有能够吸附废气中所含的SO 2的氧吸附和释放材料（54），以及能够吸附废气中的SO x储存材料（55） 以硫酸盐的形式存储SOx。 废气中所含的SO 2在氧吸附和释放材料（54）上被化学吸附而不被氧化。 如果SO x捕集催化剂（13）的温度高于吸附SO2运动的起始温度，化学吸附在氧吸附和释放材料（54）上的SO2被氧化并以硫酸盐的形式存储在SOx中 储存材料（55）。
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