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1. 发明申请

WO2013027867A3 EXHAUST GAS PURIFICATION CATALYST 审中-公开
公开(公告)号：WO2013027867A3
公开(公告)日：2013-02-28
申请号：PCT/JP2012/072088
申请日：2012-08-24
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI , TOYOTA JIDOSHA KABUSHIKI KAISHA , SONE, Hirotaka , TAKEUCHI, Masahiko , OKAWARA, Seiji , ASANUMA, Takamitsu , ISHIKAWA, Norio
发明人： SONE, Hirotaka , TAKEUCHI, Masahiko , OKAWARA, Seiji , ASANUMA, Takamitsu , ISHIKAWA, Norio
IPC分类号： B01J23/40 , B01J23/42 , B01J23/44 , B01J23/63 , B01J37/02 , B01D53/00
摘要： In an exhaust gas purification catalyst comprising noble metal, the amount of noble metal carried in an upstream portion of the carrier substrate of the catalyst on an upstream side in a direction of flow of exhaust gas is larger than the amount of noble metal carried in a downstream portion of the carrier substrate on a downstream side in the direction of flow of the exhaust gas. The amount of noble metal carried in the downstream portion is not less than an amount required for saturation of a purification rate of the exhaust gas in the downstream portion at the temperature of the exhaust gas flowing into the downstream portion. The temperature is the temperature of the exhaust gas when the exhaust gas having flowed into the upstream portion at a temperature of 168° C flows out of the upstream portion.

2. 发明申请

WO2005121515A1 EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于内燃机的排气控制装置
公开(公告)号：WO2005121515A1
公开(公告)日：2005-12-22
申请号：PCT/IB2005/001606
申请日：2005-06-09
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , ASANUMA, Takamitsu
发明人： ASANUMA, Takamitsu
IPC分类号： F01N3/08
CPC分类号： F01N3/0885 , F01N3/0842 , F01N11/00 , F01N2550/03 , F01N2560/027 , F01N2570/04 , Y02T10/47
摘要： There are provided a NOx storage reduction catalyst which is provided in an exhaust passage for an engine, and a sulfur concentration sensor which can detect a total concentration of SOx and H 2 S in exhaust gas that has passed through the NOx catalyst, and a concentration of SOx in the exhaust gas. An operating state of the engine is controlled such that SOx is released from the NOx catalyst (sulfur poisoning recovery process). When a concentration of the hydrogen sulfide obtained based on the total concentration and the concentration of SOx that are detected by the sulfur concentration sensor during the sulfur poisoning recovery process exceeds a permissible limit, an operating state of the engine is controlled such that the sulfur oxide is released form the NOx catalyst, an amount of the released sulfur oxide is in a predetermined range, and the concentration of the hydrogen sulfide is reduced.
摘要翻译：提供了一种设置在用于发动机的排气通道中的NOx储存还原催化剂，以及能够检测通过NOx催化剂的废气中的SO x和H 2 S的总浓度的硫浓度传感器，以及SO x的浓度在废气中。控制发动机的运转状态使得SO x从NOx催化剂中释放出来（硫中毒恢复过程）。当在硫中毒恢复过程中基于硫浓度传感器检测到的总浓度和SO x浓度获得的硫化氢浓度超过许可极限时，控制发动机的运行状态，使得硫氧化物由NOx催化剂释放，释放的硫氧化物的量处于预定范围内，并且硫化氢的浓度降低。

3. 发明申请

WO2008029263A2 EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于内燃机的排气净化装置
公开(公告)号：WO2008029263A2
公开(公告)日：2008-03-13
申请号：PCT/IB2007/002571
申请日：2007-09-06
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , YOSHIDA, Kohei , NAKANO, Yasuaki , WATANABE, Tadashi , HAYASHI, Kotaro , ASANUMA, Takamitsu
发明人： YOSHIDA, Kohei , NAKANO, Yasuaki , WATANABE, Tadashi , HAYASHI, Kotaro , ASANUMA, Takamitsu
IPC分类号： F01N3/08 , B01D53/94
CPC分类号： B01D53/9422 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , F01N3/0807 , F01N3/0814 , F01N3/0821 , F01N13/009 , F01N13/0093 , Y02C20/10
摘要： A fuel addition valve (14) that adds fuel into the exhaust gas passage of the engine in the form of fine fuel droplets, an upstream NOx adsorption-reduction catalyst (12), and a downstream NOx adsorption-reduction catalyst (13) are arranged in this order. Platinum Pt and palladium Pd, as noble metal, are supported on the downstream NOx adsorption-reduction NOx catalyst (13) such that the ratio of the mole number of the platinum Pt to the sum of the mole numbers of the platinum Pt and the palladium Pd is approx. 50% to approx. 80%. Only platinum Pt is supported on the upstream NOx adsorption-reduction catalyst (12). According to this structure, even when liquid fuel is supplied into exhaust gas, NOx can be effectively released from the NOx adsorption-reduction catalyst, and further the amount of NOx that the NOx adsorption-reduction catalyst can adsorb at a low temperature increases.
摘要翻译：一种燃料添加阀（14），其将燃料添加到发动机的细小燃料液滴的形式的排气通道中，上游的NOx吸附还原催化剂（12）和下游的NOx吸附还原催化剂（13）按此顺序作为贵金属的铂Pt和钯Pd负载在下游NOx吸附还原NOx催化剂（13）上，使得铂Pt的摩尔数与铂Pt和钯的摩尔数之和的比率钯约为 50％〜约 80％。在上游NOx吸附还原催化剂（12）上仅负载铂Pt。根据该结构，即使向排气供给液体燃料，也可以从NOx吸附还原催化剂中有效地释放NOx，并且进一步降低NOx吸附还原催化剂在低温下吸附的NOx量。

4. 发明申请

WO2008029239A1 EXHAUST GAS PURIFICATION SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于内燃机的排气净化系统及方法
公开(公告)号：WO2008029239A1
公开(公告)日：2008-03-13
申请号：PCT/IB2007/002476
申请日：2007-08-29
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , YOSHIDA, Kohei , NISHIOKA, Hiromasa , ASANUMA, Takamitsu
发明人： YOSHIDA, Kohei , NISHIOKA, Hiromasa , ASANUMA, Takamitsu
IPC分类号： F02D41/02 , F01N3/20 , F02D41/14
CPC分类号： F01N3/0885 , F01N9/00 , F01N11/005 , F01N2560/025 , F01N2560/06 , F01N2610/03 , F02B37/00 , F02D41/028 , F02D41/1446 , Y02T10/20
摘要： Engine air-fuel ratio controlling means is provided to control an exhaust air-fuel ratio that is the ratio between the air contained in the exhaust gas discharged from the engine (1) and the fuel element contained in the same exhaust gas and acting as a reducing agent at a NOx catalyst by controlling the air- fuel ratio of the gas combusted in the engine (1). Fuel adding means (17) is provided upstream of the NOx catalyst (9) in an exhaust passage to add fuel into the exhaust gas. During the SOx poisoning recovery control, when developing a state enabling SOx reduction reactions, the exhaust gas air- fuel ratio of the exhaust gas discharged from the engine and the amount of fuel added from the fuel adding means (17) are controlled to minimize the sum of the amount of fuel injected in the engine and the amount of fuel added from the fuel adding means.
摘要翻译：发动机空燃比控制装置用于控制排气空燃比，该排气空燃比是从发动机（1）排出的废气和包含在同一废气中的燃料元件之间的空气之间的比率，并作为通过控制在发动机（1）中燃烧的气体的空燃比，在NOx催化剂下还原剂。燃料添加装置（17）设置在排气通道中的NOx催化剂（9）的上游，以将燃料添加到废气中。在SOx中毒恢复控制期间，当开发能够进行SOx还原反应的状态时，控制从发动机排出的废气的排气空燃比和从燃料添加装置（17）添加的燃料量，以使在发动机中喷射的燃料量与从燃料添加装置添加的燃料量之和。

5. 发明申请

WO2003014539A1 AN EXHAUST GAS PURIFICATION DEVICE 审中-公开
标题翻译：排气净化装置
公开(公告)号：WO2003014539A1
公开(公告)日：2003-02-20
申请号：PCT/JP2002/008142
申请日：2002-08-08
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , NAKATANI, Koichiro , HIROTA, Shinya , TOSHIOKA, Shunsuke , ITOH, Kazuhiro , ASANUMA, Takamitsu , KIMURA, Kouichi , MIKAMI, Akira
发明人： NAKATANI, Koichiro , HIROTA, Shinya , TOSHIOKA, Shunsuke , ITOH, Kazuhiro , ASANUMA, Takamitsu , KIMURA, Kouichi , MIKAMI, Akira
IPC分类号： F01N3/022
CPC分类号： B01J35/04 , B28B11/006 , F01N3/0222 , F01N3/035 , F01N3/0807 , F01N3/0814 , F01N3/0821 , F01N3/0835 , F01N3/0842 , F01N3/085 , F01N3/0878 , F01N3/103 , F01N3/2053 , F01N3/2828 , F01N13/009 , F01N2240/20 , F01N2260/14 , F02B37/00 , F02M26/05 , F02M26/10 , F02M26/15 , F02M26/32
摘要： There is provided an exhaust gas purification device (22) comprising a substrate used for purifying components contained in an exhaust gas discharged from an engine. The substrate has partitions (54) which define passages (50, 51) and are formed of porous material having fine pores each having a predetermined average size. The end portions of the adjacent partitions (54) defining each of part of the passages (50, 51) of the substrate are partially connected to each other such that the end portions (52, 53) are tapered toward the outside of the substrate. The tapered end portions (52, 53) partially close the end opening of the corresponding passage and form a small hole (55, 56) defined by the tips thereof. The size of each small hole (55, 56) is smaller than the cross sectional area of the corresponding passage (50) and larger than the sizes of the fine pores of the partitions (54).
摘要翻译：提供了一种排气净化装置（22），其包括用于净化从发动机排出的废气中所含的组分的基板。衬底具有限定通道（50,51）的分隔壁（54），并且由具有预定平均尺寸的细孔的多孔材料形成。限定基板的通路（50,51）的每一部分的相邻隔板（54）的端部彼此部分连接，使得端部（52,53）朝向基板的外侧逐渐变细。锥形端部（52,53）部分地关闭相应通道的端部开口并形成由其尖端限定的小孔（55,56）。每个小孔（55,56）的尺寸小于相应通道（50）的横截面面积并且大于分隔壁（54）的细孔尺寸。

6. 发明申请

WO2010082104A1 TEMPERATURE SENSOR, SULFUR COMPONENT DETECTOR, AND EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：温度传感器，硫组件检测器和内燃机排气净化系统
公开(公告)号：WO2010082104A1
公开(公告)日：2010-07-22
申请号：PCT/IB2010/000016
申请日：2010-01-08
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , UMEMOTO, Kazuhiro , NISHIOKA, Hiromasa , TSUKAMOTO, Yoshihisa , MATSUO, Junichi , ASANUMA, Takamitsu , FUKUMA, Takao , YOSHIDA, Kouhei , IMAI, Daishi , NAKATA, Yuka
发明人： UMEMOTO, Kazuhiro , NISHIOKA, Hiromasa , TSUKAMOTO, Yoshihisa , MATSUO, Junichi , ASANUMA, Takamitsu , FUKUMA, Takao , YOSHIDA, Kouhei , IMAI, Daishi , NAKATA, Yuka
IPC分类号： F01N3/08 , F01N11/00 , G01K13/00
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 (10) 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 (10) is disposed upstream of an exhaust purification system (30). 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（10）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（10）设置在排气净化系统（30）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。

7. 发明申请

WO2009056958A1 EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于内燃机的排气净化装置
公开(公告)号：WO2009056958A1
公开(公告)日：2009-05-07
申请号：PCT/IB2008/002912
申请日：2008-10-30
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , YOSHIDA, Kohei , NISHIOKA, Hiromasa , HAYASHI, Kotaro , ASANUMA, Takamitsu , HIROTA, Shinya , OTSUKI, Hiroshi
发明人： YOSHIDA, Kohei , NISHIOKA, Hiromasa , HAYASHI, Kotaro , ASANUMA, Takamitsu , HIROTA, Shinya , OTSUKI, Hiroshi
IPC分类号： F02D41/02 , F01N3/20 , F01N3/28
CPC分类号： F02D41/0275 , F01N3/0814 , F01N3/085 , F01N3/0871 , F01N2570/04 , F01N2570/14 , F01N2900/1612 , Y02A50/2344 , Y02A50/2348 , Y02T10/24
摘要： An exhaust gas purification device includes an SOx trap catalyst that is disposed in an exhaust passage upstream of an NOx occlusion/reduction catalyst and that suppress occlusion of SOx by the NOx occlusion/reduction catalyst. The exhaust gas purification device further includes a selective reduction catalyst that selectively reduces NOx using ammonia, disposed downstream of the NOx occlusion/reduction catalyst, and a control unit. When an air-fuel ratio of the exhaust gas flowing into the SOx trap catalyst is lean, the control unit executes a exhaust gas purification control to temporarily make an air-fuel ratio of the exhaust gas flowing into the NOx occlusion/reduction catalyst rich to reduce NOx occluded by the NOx occlusion/reduction catalyst and generate ammonia, whereby the ammonia produced as a result of the exhaust gas purification control is used by the selective reduction catalyst to reduce NOx.
摘要翻译：排气净化装置包括：SOx捕集催化剂，其设置在NOx吸留还原催化剂上游的排气通路中，并且抑制由NOx吸留还原催化剂吸收的SO x。废气净化装置还包括选择性还原催化剂，其选择性地使用设置在NOx吸留还原催化剂下游的氨的NOx，以及控制单元。当流入SOx捕集催化剂的废气的空燃比为稀时，控制单元执行废气净化控制，以使流入NOx吸留还原催化剂的废气的空燃比富于减少由NOx吸留还原催化剂吸收的NOx，产生氨，由此通过选择还原催化剂使用由废气净化控制而产生的氨来还原NOx。

8. 发明申请

WO2008102915A1 EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：内燃机排气净化装置
公开(公告)号：WO2008102915A1
公开(公告)日：2008-08-28
申请号：PCT/JP2008/053349
申请日：2008-02-20
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , YOSHIDA, Kohei , HIROTA, Shinya , ASANUMA, Takamitsu , NISHIOKA, Hiromasa , OTSUKI, Hiroshi
发明人： YOSHIDA, Kohei , HIROTA, Shinya , ASANUMA, Takamitsu , NISHIOKA, Hiromasa , OTSUKI, Hiroshi
IPC分类号： F01N3/08 , F02D41/02 , F01N3/20 , F01N7/02
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N13/009 , F01N13/0093 , F01N2610/03
摘要： An engine wherein a plurality of NOx storing catalysts (11, 12) are arranged in parallel in an engine exhaust passage, reducing agent feed valves (14, 15) for supplying reducing agent to the NOx storing catalysts (11, 12) are individually provided for the NOx storing catalysts (11, 12), and, when NOx should be released from the NOx storing catalysts (11, 12), the upstream-most NOx storing catalyst (11) is fed with the reducing agent required for consuming the oxygen contained in the exhaust gas in addition to the reducing agent required for reducing the NOx stored in the upstream-most NOx storing catalyst (11) from the first reducing agent feed valve (14).
摘要翻译：另外，在发动机排气通路中并列配置有多个NOx吸留催化剂（11,12）的发动机，分别设置用于向NOx吸留催化剂（11,12）供给还原剂的还原剂供给阀（14,15）对于NOx储存催化剂（11,12），并且当从NOx吸留催化剂（11,12）释放NOx时，向上游NOx吸收催化剂（11）供给消耗氧气所需的还原剂除了从第一还原剂供给阀（14）还原储存在上游NOx吸收催化剂（11）中的NOx所需的还原剂之外，还含有废气。

9. 发明申请

WO2008007810A1 EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：内燃机排气净化系统
公开(公告)号：WO2008007810A1
公开(公告)日：2008-01-17
申请号：PCT/JP2007/064291
申请日：2007-07-12
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , TOSHIOKA, Shunsuke , ASANUMA, Takamitsu , NARITA, Morio
发明人： TOSHIOKA, Shunsuke , ASANUMA, Takamitsu , NARITA, Morio
IPC分类号： F02D41/02 , F01N3/08 , F01N3/20
CPC分类号： F02D41/0275 , F01N3/0885 , F01N3/106 , F01N11/00 , F01N2550/05 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2610/03 , F01N2610/1493 , F01N2900/0421 , F02B37/00 , F02D41/1454 , Y02T10/20 , Y02T10/47
摘要： The task for the present invention is to reduce more of an oxide that is stored in a NOx storage reduction catalyst, even in a case where a clogging has occurred in a reducing agent adding valve that is provided in an exhaust passage of an internal combustion engine. The present invention is provided with rich spike control performing means that, when an oxide that is stored in the NOx storage reduction catalyst is reduced, performs a rich spike control and that, when lowering the air-fuel ratio in the exhaust gas, performs addition of a reducing agent by the reducing agent adding valve multiple times, which is performed when a crank angle of the internal combustion engine is in a specified range. When the clogging has occurred in the reducing agent adding valve (step S102), the number of times the air-fuel ratio in the exhaust gas is lowered while the rich spike control is being performed by the rich spike control performing means is increased (step S110).
摘要翻译：本发明的任务是减少存储在NOx储存还原催化剂中的氧化物，即使在设置在内燃机的排气通道中的还原剂添加阀中发生堵塞的情况下。本发明提供了丰富的尖峰控制执行装置，当减少存储在NOx存储还原催化剂中的氧化物时，执行浓穗控制，并且当降低排气中的空燃比时，进行附加通过还原剂添加阀多次的还原剂，其在内燃机的曲柄角处于规定范围内时进行。当在还原剂添加阀中发生堵塞时（步骤S102），增加了通过浓穗控制执行装置进行浓穗控制时废气中的空燃比降低的次数（步骤 S110）。

10. 发明申请

WO2010053168A1 EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：内燃机排气净化系统
公开(公告)号：WO2010053168A1
公开(公告)日：2010-05-14
申请号：PCT/JP2009/069024
申请日：2009-11-02
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , UMEMOTO, Kazuhiro , YOSHIDA, Kohei , NISHIOKA, Hiromasa , NAKATA, Yuka , ASANUMA, Takamitsu
发明人： UMEMOTO, Kazuhiro , YOSHIDA, Kohei , NISHIOKA, Hiromasa , NAKATA, Yuka , ASANUMA, Takamitsu
IPC分类号： F02D41/02 , F01N3/08
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 N 2 O 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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