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公开(公告)号：US20110036073A1
公开(公告)日：2011-02-17
申请号：US12937036
申请日：2009-04-07
CPC分类号： F02D41/0285 , B01D53/9495 , B01D2255/91 , B01D2257/302 , B01D2257/404 , F01N3/0814 , F01N3/0842 , F01N3/085 , F01N3/0885 , F01N9/00 , F01N13/02 , F01N2430/06 , F01N2430/085 , F01N2570/04 , F01N2570/14 , F01N2610/03 , F01N2900/1612 , F02D41/025 , F02D41/0275 , F02D41/405 , Y02A50/2344 , Y02T10/26 , Y02T10/44 , Y02T10/47
摘要： In an internal combustion engine, an SOX trap catalyst (13) which traps SOX contained in the exhaust gas is arranged upstream of an NOX storing catalyst (15) in an engine exhaust passage. When the NOX storing catalyst (15) should release NOX, auxiliary fuel is injected into a combustion chamber (2) at a combustible timing after the completion of injection of fuel into the combustion chamber (2) for generating the engine output. At this time, the auxiliary fuel is injected so that the air-fuel ratio A/F of the combustion gas in the combustion chamber (2) does not become below a minimum allowable air-fuel ratio M where SOX trapped at the SOX trap catalyst (13) will not be released.
摘要翻译： 在内燃机中，在发动机排气通路内配置有NO x吸留催化剂（15）的上游的排出气体中含有SO x的SO X捕集催化剂（13）。 当NO x储存催化剂（15）应释放NOX时，在完成向燃烧室（2）注入燃料以产生发动机输出之后的可燃时刻将辅助燃料喷射到燃烧室（2）中。 此时，辅助燃料被喷射，使得燃烧室（2）中的燃烧气体的空燃比A / F不会低于最低允许空燃比M，其中SO X捕获在SO x捕集催化剂 （13）不会被释放。
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公开(公告)号：US20090107121A1
公开(公告)日：2009-04-30
申请号：US12289239
申请日：2008-10-23
IPC分类号： F01N9/00
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N3/2066 , F01N11/00 , F01N13/009 , F01N2240/00 , F01N2570/04 , F01N2570/14 , F01N2610/02 , Y02A50/2344 , Y02T10/24 , Y02T10/47
摘要： A SOx trap catalyst, an oxidation catalyst, a particulate filter, an aqueous urea supply valve, and a NOx selective reduction catalyst are arranged in order from upstream to downstream in an engine exhaust passage. It is determined whether a discharge concentration of hydrogen sulfide H2S will become equal to or greater than a preset maximum concentration when SOx is released from the SOx trap catalyst. If it is estimated that the discharge concentration of the hydrogen sulfide H2S will become equal to or greater than the maximum concentration when SOx is released, an adsorbed ammonia amount adsorbed on the NOx selective reduction catalyst is reduced before SOx is released so that the discharge concentration of the hydrogen sulfide H2S is less than the maximum concentration when SOx is released.
摘要翻译： 在发动机排气通道中从上游到下游依次布置有SO x捕集催化剂，氧化催化剂，颗粒过滤器，含水尿素供给阀和NOx选择还原催化剂。 当SO x从SO X捕集催化剂释放时，确定硫化氢H 2 S的排出浓度是否将变为等于或大于预设最大浓度。 如果估计硫化氢H 2 S的排放浓度将变为等于或大于SO x释放时的最大浓度，则在释放SOx之前吸附在NOx选择还原催化剂上的吸附氨量降低，使得排放浓度 的硫化氢H2S小于SOx释放时的最大浓度。
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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：US20090241638A1
公开(公告)日：2009-10-01
申请号：US12377039
申请日：2008-06-30
IPC分类号： G01N1/22
CPC分类号： G01N33/287 , F01N2560/027 , G01N33/0042 , Y02A50/248
摘要： A metal compound (50) able to trap a sulfur component in exhaust gas is arranged in a flow path of the exhaust gas, a property of the metal compound (50) changing along with an increase of the amount of sulfur component trapped at the metal compound (50) is measured, and the cumulative value of the amount of SOX actually contained in the exhaust gas is calculated from the measured property. On the other hand, the assumed cumulative value of the amount of SOx, assumed to be contained in the exhaust gas when assuming that fuel or oil of a sulfur concentration assumed in advance is used, is calculated. It is judged if fuel or oil with a high sulfur concentration is being used from the actual cumulative value of the amount of SOX and the assumed cumulative value of the amount of SOx.
摘要翻译： 排气中的硫成分的金属化合物（50）配置在废气的流路中，金属化合物（50）的特性随着金属中被捕获的硫成分的量的增加而变化 测量化合物（50），并根据测定的性质计算废气中实际含有的SOX量的累积值。 另一方面，假设假设使用预先假设的硫浓度的燃料或油的假定在废气中包含的SO x的量的假定累积值。 根据SOX量的实际累积值和SOx量的假定累计值判断是否使用了高硫浓度的燃料或油。
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公开(公告)号：US08887492B2
公开(公告)日：2014-11-18
申请号：US12920975
申请日：2009-02-26
CPC分类号： F01N3/0878 , F01N3/0807 , F01N3/0814 , F01N3/2033 , F01N13/02 , F01N2240/18 , F01N2240/36 , F01N2410/03 , F01N2550/03 , F01N2560/06 , F01N2560/14 , F01N2570/22 , F02D41/0245 , F02D41/025 , F02D41/0275 , Y02T10/26
摘要： In an exhaust gas purification apparatus of an internal combustion engine, there is provided a technique capable of suppressing a reduction in exhaust gas purification performance. The apparatus includes: an exhaust gas purification catalyst (6) that is arranged in an exhaust passage of the internal combustion engine for purifying an exhaust gas; an adsorption device (5) that is arranged at an upstream side of the exhaust gas purification catalyst, rises in temperature up to an upper limit temperature due to heat generated by adsorption thereto of an incoming first component, and falls in temperature after its temperature has reached said upper limit temperature; and a heat generating component supply unit (10) that supplies a second component which generates reaction heat in the exhaust gas purification catalyst, before the temperature of the adsorption device begins to fall.
摘要翻译： 在内燃机的废气净化装置中，提供了能够抑制排气净化性能降低的技术。 该装置包括：排气净化催化剂（6），其布置在用于净化废气的内燃机的排气通道中; 布置在排气净化催化剂的上游侧的吸附装置（5）由于进入的第一成分的吸附而产生的热量升温至上限温度，其温度下降后的温度 达到上限温度; 以及在吸附装置的温度开始下降之前，在排气净化催化剂中供给产生反应热的第二成分的发热部件供给部（10）。
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公开(公告)号：US08640442B2
公开(公告)日：2014-02-04
申请号：US12937036
申请日：2009-04-07
CPC分类号： F02D41/0285 , B01D53/9495 , B01D2255/91 , B01D2257/302 , B01D2257/404 , F01N3/0814 , F01N3/0842 , F01N3/085 , F01N3/0885 , F01N9/00 , F01N13/02 , F01N2430/06 , F01N2430/085 , F01N2570/04 , F01N2570/14 , F01N2610/03 , F01N2900/1612 , F02D41/025 , F02D41/0275 , F02D41/405 , Y02A50/2344 , Y02T10/26 , Y02T10/44 , Y02T10/47
摘要： In an internal combustion engine, an SOX trap catalyst (13) which traps SOX contained in the exhaust gas is arranged upstream of an NOX storing catalyst (15) in an engine exhaust passage. When the NOX storing catalyst (15) should release NOX, auxiliary fuel is injected into a combustion chamber (2) at a combustible timing after the completion of injection of fuel into the combustion chamber (2) for generating the engine output. At this time, the auxiliary fuel is injected so that the air-fuel ratio A/F of the combustion gas in the combustion chamber (2) does not become below a minimum allowable air-fuel ratio M where SOX trapped at the SOX trap catalyst (13) will not be released.
摘要翻译： 在内燃机中，在发动机排气通路内配置有NO x吸留催化剂（15）的上游的排出气体中含有SO x的SO X捕集催化剂（13）。 当NO x储存催化剂（15）应释放NOX时，在完成向燃烧室（2）注入燃料以产生发动机输出之后的可燃时刻将辅助燃料喷射到燃烧室（2）中。 此时，辅助燃料被喷射，使得燃烧室（2）中的燃烧气体的空燃比A / F不会低于最低允许空燃比M，其中SO X捕获在SO x捕集催化剂 （13）不会被释放。
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公开(公告)号：US08156787B2
公开(公告)日：2012-04-17
申请号：US12377039
申请日：2008-06-30
CPC分类号： G01N33/287 , F01N2560/027 , G01N33/0042 , Y02A50/248
摘要： A metal compound (50) able to trap a sulfur component in exhaust gas is arranged in a flow path of the exhaust gas, a property of the metal compound (50) changing along with an increase of the amount of sulfur component trapped at the metal compound (50) is measured, and the cumulative value of the amount of SOX actually contained in the exhaust gas is calculated from the measured property. On the other hand, the assumed cumulative value of the amount of SOX, assumed to be contained in the exhaust gas when assuming that fuel or oil of a sulfur concentration assumed in advance is used, is calculated. It is judged if fuel or oil with a high sulfur concentration is being used from the actual cumulative value of the amount of SOX and the assumed cumulative value of the amount of SOX.
摘要翻译： 排气中的硫成分的金属化合物（50）配置在废气的流路中，金属化合物（50）的特性随着金属中被捕获的硫成分的量的增加而变化 测量化合物（50），并根据测定的性质计算废气中实际含有的SOX量的累积值。 另一方面，假设假设使用预先假设的硫浓度的燃料或油的假定在废气中包含的SOX量的假定累积值。 根据SOX量的实际累积值和SOX量的假定累积值判断是否使用高硫浓度的燃料或油。
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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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9.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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10.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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