公开(公告)号：US20090188238A1

公开(公告)日：2009-07-30

申请号：US12309490

申请日：2008-01-24

申请人： Kohei Yoshida ,  Hiromasa Nishioka ,  Kotaro Hayashi ,  Takamitsu Asanuma ,  Shinya Hirota ,  Hiroshi Otsuki

发明人： Kohei Yoshida ,  Hiromasa Nishioka ,  Kotaro Hayashi ,  Takamitsu Asanuma ,  Shinya Hirota ,  Hiroshi Otsuki

IPC分类号： F02D43/00 ,  F01N3/10 ,  H02P31/00

CPC分类号： B60W20/15 ,  B01D53/94 ,  B01D2257/302 ,  B01D2259/4566 ,  B60K6/445 ,  B60K6/48 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W2510/0628 ,  B60W2510/0657 ,  B60Y2400/435 ,  F01N3/0842 ,  F01N3/085 ,  F01N13/009 ,  F01N2570/04 ,  F01N2610/03 ,  F02D41/0055 ,  F02D41/0285 ,  F02D2041/026 ,  F02D2200/0802 ,  Y02A50/2348 ,  Y02T10/54 ,  Y02T10/6221 ,  Y02T10/6239 ,  Y02T10/6286

摘要： In an internal combustion engine, the engine is formed so that an output of an electric motor can be superposed on an output of the engine. An SOX trap catalyst able to trap the SOX contained in the exhaust gas is arranged inside the engine exhaust passage upstream of the NOX storage catalyst. The vehicle drive power from the engine and the vehicle drive power from the electric motor are adjusted so that the SOX trap rate of the SOX trap catalyst is maintained at a predetermined high SOX trap rate.

摘要翻译： 在内燃机中，发动机形成为能够将电动机的输出叠加在发动机的输出上。 能够捕集废气中含有的SO x的SO X捕集催化剂配置在NO x吸留催化剂上游的发动机排气通路的内部。 调整来自发动机的车辆驱动力和来自电动机的车辆驱动力，使得SO x捕集催化剂的SO x捕集率保持在预定的高SO x捕集率。

公开(公告)号：US20090145113A1

公开(公告)日：2009-06-11

申请号：US12227876

申请日：2008-04-03

申请人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki

发明人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki

IPC分类号： F01N3/18

CPC分类号： F01N3/0885 ,  B01D53/9422 ,  B01D53/9431 ,  B01D53/9477 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/91 ,  B01D2257/302 ,  F01N3/0842 ,  F01N3/085 ,  F01N13/0093 ,  F01N2560/026 ,  F01N2570/04 ,  F01N2610/03

摘要： An internal combustion engine in which a front end catalyst (12) and rear end catalyst (14) comprising NOx storing catalysts are arranged in an engine exhaust passage. When these catalysts (12, 14) should recover from SOx poisoning, SOx poisoning recovery proceeding is performed in which the temperatures of the corresponding catalysts (12, 14) are raised to the SOx release temperature and the air-fuel ratio of the exhaust gas flowing into the corresponding catalysts (12, 14) is made rich. In this case, the frequency of performing the SOx poisoning recovery proceeding of the rear end catalyst (14) is made higher than the frequency of performing the SOx poisoning recovery proceeding of the front end catalyst (12).

摘要翻译： 在发动机排气通路中配置有前端催化剂（12）和包含NOx储存催化剂的后端催化剂（14）的内燃机。 当这些催化剂（12,14）从SOx中毒中恢复时，进行SOx中毒恢复进程，其中相应的催化剂（12,14）的温度升高到SOx释放温度，排气的空燃比 流入相应的催化剂（12,14）中。 在这种情况下，使后端催化剂（14）的SOx中毒恢复进行的频率比进行前端催化剂（12）的SOx中毒恢复进行的频率高。

公开(公告)号：US20090107121A1

公开(公告)日：2009-04-30

申请号：US12289239

申请日：2008-10-23

申请人： Kohei Yoshida ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

发明人： Kohei Yoshida ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

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。

公开(公告)号：US08276369B2

公开(公告)日：2012-10-02

申请号：US12599212

申请日：2008-07-11

申请人： Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiroshi Otsuki

发明人： Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiroshi Otsuki

IPC分类号： F01N3/00 ,  F01N3/10 ,  F01N3/02

CPC分类号： F01N3/0814 ,  B01D46/006 ,  B01D46/42 ,  B01D53/9422 ,  B01D53/9477 ,  B01D53/949 ,  B01D2255/915 ,  B01D2257/302 ,  B01D2279/30 ,  F01N3/0253 ,  F01N3/0807 ,  F01N3/085 ,  F01N3/0885 ,  F01N13/009 ,  F01N2250/14 ,  F01N2570/04 ,  F01N2610/03

摘要： In the present exhaust purification system of an internal combustion engine, a particulate filter is arranged downstream of an NOx storage/reduction catalyst device and an S trap device is arranged upstream of the NOx storage/reduction catalyst device. A first fuel supplying device for supplying additional fuel for regeneration of the particulate filter to the exhaust system upstream of the S trap device or into the cylinder is provided. An amount of the additional fuel supplied by the first fuel supplying device is controlled to make the S trap device not release SOx. A second fuel supplying device is provided in the exhaust system between the NOx storage/reduction catalyst device and the particulate filter to make up for a deficiency of the additional fuel supplied by the first fuel supplying device in the regeneration treatment of the particulate filter.

摘要翻译： 在本发明的内燃机的排气净化系统中，在NOx吸留还原催化剂装置的下游配置微粒过滤器，在NOx吸留还原催化剂装置的上游配置有S阱装置。 提供了一种第一燃料供给装置，用于向颗粒过滤器再生的附加燃料供给到S捕集装置或气缸上游的排气系统。 控制由第一燃料供给装置供给的附加燃料的量，以使S捕集装置不释放SOx。 第二燃料供给装置设置在NOx储存还原催化剂装置和微粒过滤器之间的排气系统中，以弥补由微粒过滤器的再生处理中由第一燃料供应装置供应的附加燃料的不足。

公开(公告)号：US08047063B2

公开(公告)日：2011-11-01

申请号：US12309764

申请日：2008-05-14

申请人： Shinya Hirota ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Kotaro Hayashi ,  Hiroshi Otsuki

发明人： Shinya Hirota ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Kotaro Hayashi ,  Hiroshi Otsuki

IPC分类号： G01M15/10

CPC分类号： F02D41/0285 ,  B01D53/9495 ,  B01D2257/302 ,  F01N3/0814 ,  F01N3/085 ,  F01N3/0885 ,  F01N3/32 ,  F01N5/02 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/027 ,  F01N2560/12 ,  F01N2560/20 ,  F01N2570/04 ,  F01N2610/03 ,  F01N2610/08 ,  F01N2610/10 ,  F01N2900/1612 ,  F01N2900/1621 ,  F02D41/1444 ,  Y02A50/2322 ,  Y02T10/47

摘要： In an internal combustion engine, a sulfur detection sample gas is generated in a sample gas generation chamber by fuel of an amount smaller than the amount of fuel fed to a combustion chamber and proportional to the amount of fuel fed to the combustion chamber. An SOx sensor having a sensor part trapping the sulfur contained in the sample gas and capable of detecting the amount of sulfur trapped in the sensor part from the property changes of the sensor part is provided. The amount of SOx that flows into the catalyst is estimated from the output value-of this SOx sensor.

摘要翻译： 在内燃机中，在样品气体发生室中，通过小于燃料供给量的燃料，与供给燃烧室的燃料量成比例的燃料，产生硫检测样气。 提供了一种具有捕获样品气体中所含的硫的传感器部件并且能够从传感器部件的特性变化中检测传感器部件中捕集的硫的量的SOx传感器。 从该SOx传感器的输出值估计流入催化剂的SO x的量。

公开(公告)号：US20100139259A1

公开(公告)日：2010-06-10

申请号：US12449344

申请日：2008-08-15

申请人： Shinya Hirota ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki

发明人： Shinya Hirota ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki

IPC分类号： F01N3/10

CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/91 ,  B01D2257/302 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/103 ,  F01N3/106 ,  F01N2610/02 ,  Y02T10/24

摘要： In an internal combustion engine, an NOx selective reducing catalyst is arranged inside an engine exhaust passage, an oxidation catalyst is arranged upstream of the NOx selective reducing catalyst, and an NOx adsorption catalyst is arranged upstream of the oxidation catalyst. The NOx adsorption catalyst has a property of releasing NOx when the temperature rises and a property of trapping the SOx contained in the exhaust gas. The inflow of SOx into the oxidation catalyst is suppressed by the NOx adsorption catalyst to prevent the NO released from the NOx adsorption catalyst being oxidized to NO2 at the oxidation catalyst from being obstructed by SOx.

摘要翻译： 在内燃机中，在发动机排气通路内配置NOx选择还原催化剂，在NOx选择还原催化剂的上游配置有氧化催化剂，在氧化催化剂的上游配置有NOx吸附催化剂。 NOx吸附催化剂具有当温度升高时释放NOx的性质和捕获废气中所含的SO x的性质。 通过NOx吸附催化剂抑制SO x进入氧化催化剂的流入，以防止NO x吸附催化剂被NO x吸附催化剂氧化成NO 2的NO被SOx阻挡。

公开(公告)号：US20100095741A1

公开(公告)日：2010-04-22

申请号：US12310571

申请日：2008-01-17

申请人： Hiroshi Otsuki ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi

发明人： Hiroshi Otsuki ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi

IPC分类号： G01N27/12 ,  G01N27/22

CPC分类号： G01N27/12 ,  B01D53/86 ,  B01D2257/302 ,  G01N33/0042

摘要： In an internal combustion engine, a metal or a metal compound (10) capable of capturing a sulfur component contained in an exhaust gas is provided in a flow path of the exhaust gas. When the amount of the sulfur content captured by the metal or the metal compound (10) is increased as the lapse of time, a physical property of the metal or the metal compound (10) which varies with increase in the amount of the captured sulfur component is measured. Based on the measurement value, the sulfur component in the gas can be detected.

摘要翻译： 在内燃机中，在排气的流路中设置能够捕获废气中含有的硫成分的金属或金属化合物（10）。 当金属或金属化合物（10）捕获的硫含量的量随着时间的推移而增加时，金属或金属化合物（10）的物理性能随捕获的硫的量的增加而变化 测量组件。 基于测量值，可以检测气体中的硫成分。

公开(公告)号：US20090320451A1

公开(公告)日：2009-12-31

申请号：US12308947

申请日：2008-04-30

申请人： Hiroshi Otsuki ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi

发明人： Hiroshi Otsuki ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi

IPC分类号： F01N11/00 ,  F01N3/10 ,  F01N9/00

CPC分类号： F01N9/00 ,  B01D53/9495 ,  B01D2257/302 ,  F01N3/0814 ,  F01N3/0885 ,  F01N9/005 ,  F01N2560/027 ,  F01N2560/06 ,  F01N2900/0408 ,  F01N2900/14 ,  F01N2900/1612 ,  Y02T10/47

摘要： In an internal combustion engine, an SOx sensor (16) having a sensor part (53, 60) trapping the SOx contained in the exhaust gas and able to detect the amount of SOx trapped at the sensor part (53, 60) from a change of property of the sensor part (53, 60) is arranged in the engine exhaust passage upstream of the NOx storing catalyst (14). When estimating the amount of SOx stored in the NOx storing catalyst (14) from the amount of SOx trapped at the sensor part (53, 60), deviation of the estimated value of the amount of stored SOx arising due to the difference between the SOx trapping rate of the sensor part (53, 60) and the SOx trapping rate of the NOx storing catalyst (14) is corrected.

摘要翻译： 在内燃机中，具有传感器部分（53,60）的SOx传感器（16）捕获排放气体中所含的SOx并且能够从变化中检测在传感器部分（53,60）处捕获的SO x的量 传感器部分（53,60）的特性布置在NOx吸留催化剂（14）上游的发动机排气通道中。 当从传感器部分（53,60）中捕获的SOx的量估计存储在NOx存储催化剂（14）中的SO x的量时，由于SOx之间的差异而产生的存储的SOx的量的估计值的偏差 校正传感器部分（53,60）的捕获率和NOx吸留催化剂（14）的SOx捕获速率。

公开(公告)号：US20090308053A1

公开(公告)日：2009-12-17

申请号：US12308768

申请日：2008-01-29

申请人： Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiroshi Otsuki

发明人： Hiromasa Nishioka ,  Shinya Hirota ,  Kotaro Hayashi ,  Takamitsu Asanuma ,  Kohei Yoshida ,  Hiroshi Otsuki

IPC分类号： F01N11/00 ,  F01N9/00 ,  F01N3/00 ,  F01N3/10

CPC分类号： F02D41/0285 ,  B01D53/9477 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2257/302 ,  B01D2257/404 ,  F01N3/0807 ,  F01N3/0842 ,  F01N3/085 ,  F01N13/009 ,  F01N2550/03 ,  F01N2560/023 ,  F01N2560/027 ,  F01N2570/04 ,  F01N2610/03 ,  F02D2200/0818

摘要： An SOx trap catalyst able to trap SOx contained in the exhaust gas is arranged in an engine exhaust passage upstream of an NOx storing catalyst in an internal combustion engine. When the SOx trap rate of the SOx trap catalyst falls, fuel is added in the exhaust gas flowing into the SOx trap catalyst to form in the SOx trap catalyst a region in which an air-fuel ratio becomes locally rich. SOx released from the SOx trap catalyst in this region can be trapped in the SOx trap catalyst at the downstream side once again without flowing out from the downstream end of the SOx trap catalyst.

摘要翻译： 在内燃机中的NOx吸留催化剂的上游的发动机排气通路中配置能够捕集废气中含有的SO x的SO X捕集催化剂。 当SOx捕集催化剂的SOx捕获率下降时，在排入SO x捕集催化剂的废气中添加燃料，在SO x捕集催化剂中形成空燃比局部浓缩的区域。 从该区域的SOx捕集催化剂释放的SOx可以再次被捕获在下游侧的SO x捕集催化剂中，而不会从SOx捕集催化剂的下游端流出。

公开(公告)号：US20090255233A1

公开(公告)日：2009-10-15

申请号：US11989867

申请日：2007-06-22

申请人： Kohei Yoshida ,  Kotaro Hayashi ,  Shinya Hirota ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki

发明人： Kohei Yoshida ,  Kotaro Hayashi ,  Shinya Hirota ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki

IPC分类号： F01N9/00 ,  F01N3/10 ,  F01N3/023 ,  F01N3/035

CPC分类号： F01N3/0871 ,  B01D53/9431 ,  B01J23/02 ,  B01J23/58 ,  B01J23/63 ,  B01J27/25 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/085 ,  F01N9/002 ,  F01N13/009 ,  F01N2370/02 ,  F01N2510/06 ,  F01N2560/027 ,  F01N2560/06 ,  F01N2900/0408 ,  F01N2900/1612 ,  F01N2900/1621 ,  Y02T10/47

摘要： An SOX trap catalyst (11) in which at least one of an alkali metal and alkali earth metal is carried diffused is arranged in an exhaust passage of an internal combustion engine. By holding the temperature of the SOX trap catalyst (11) during engine operation at the temperature where a nitrate of the at least one of the alkali metal and alkali earth metal becomes the melted state, a nitrate movement and coagulation action where the nitrate in the SOX trap catalyst (11) moves to and coagulates at the surface of the SOX trap catalyst (11) is promoted. Due to this nitrate movement and coagulation action, SOX is removed while restoring the SOX trap rate.

摘要翻译： 在内燃机的排气通道中设置有其中载持有碱金属和碱土金属中的至少一种的SOX捕集催化剂（11）。 通过在碱性金属和碱土金属中的至少一种的硝酸盐变为熔融状态的温度下，在发动机运转期间保持SO x捕集催化剂（11）的温度，硝酸盐运动和凝结作用，其中硝酸盐在 促进了SOX捕集催化剂（11）在SOX捕集催化剂（11）表面移动并凝结的SOX捕集催化剂（11）。 由于这种硝酸盐运动和凝结作用，SOX在恢复SOX捕集率的同时被去除。