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。

公开(公告)号：US20090249768A1

公开(公告)日：2009-10-08

申请号：US12227718

申请日：2007-06-29

申请人： Takamitsu Asanuma ,  Shinya Hirota ,  Kotaro Hayashi ,  Kohei Yoshida ,  Atsushi Hayashi

发明人： Takamitsu Asanuma ,  Shinya Hirota ,  Kotaro Hayashi ,  Kohei Yoshida ,  Atsushi Hayashi

IPC分类号： F01N9/00 ,  F01N3/10

CPC分类号： B01D53/9409 ,  B01D53/90 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2257/302 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/106 ,  F01N9/002 ,  F01N13/009 ,  F01N2610/03 ,  F01N2900/1612 ,  F02B37/00 ,  F02D41/0285 ,  F02D41/405 ,  Y02A50/2348 ,  Y02T10/44 ,  Y02T10/47

摘要： HC feed control for feeding HC into exhaust gas upstream of an SOx trap 11 when a predetermined condition stands is executed. When an SOx trap amount is smaller than a predetermined amount, as HC feed control, first HC feed control feeding HC into the exhaust gas upstream of the SOx trap by a predetermined pattern is executed. When the SOx trap amount is larger than a predetermined amount, as HC feed control, second HC feed control feeding HC into the exhaust gas upstream of the SOx trap by a pattern different from the predetermined pattern, which pattern keeping the temperature of the SOx trap from locally becoming higher than the predetermined temperature or suppressing the formation of a region in the exhaust gas flowing into the SOx trap where the air-fuel ratio becomes locally rich, is executed.

摘要翻译： 当执行预定条件时，HC进给控制用于将HC进入到SOx捕集器11上游的废气中。 当SOx捕集量小于预定量时，执行作为HC进料控制的第一HC进料控制以预定模式将HC进料到SOx捕集器上游的废气中。 当SOx捕集量大于预定量时，作为HC进料控制，第二HC进料控制通过不同于预定图案的图案将HC进入SOx捕集器上游的废气中，该图案保持SOx捕集器的温度 从局部变得高于预定温度或抑制流入空燃比变得局部浓缩的SOx捕集器的排气中的区域的形成。

公开(公告)号：US20090183493A1

公开(公告)日：2009-07-23

申请号：US12227852

申请日：2007-06-20

申请人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma

发明人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma

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

CPC分类号： F01N3/0821 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2258/012 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/106 ,  F01N3/206 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/06 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/0408 ,  Y02A50/2344 ,  Y02T10/47

摘要： When performing temperature elevation control at a first exhaust purification device 1, a second exhaust purification device 2 is prevented from being raised in temperature to a set temperature or more.

摘要翻译： 当在第一排气净化装置1进行升温控制时，防止第二排气净化装置2升温到设定温度以上。

公开(公告)号：US06381952B1

公开(公告)日：2002-05-07

申请号：US09696024

申请日：2000-10-26

申请人： Takamitsu Asanuma ,  Shinya Hirota ,  Shunsuke Toshioka ,  Nobumoto Ohashi

发明人： Takamitsu Asanuma ,  Shinya Hirota ,  Shunsuke Toshioka ,  Nobumoto Ohashi

IPC分类号： F01N300

CPC分类号： F02D41/405 ,  F02D9/04 ,  F02D41/024 ,  F02D41/221 ,  Y02T10/26 ,  Y02T10/44

摘要： An exhaust temperature raising apparatus has an exhaust throttle valve that adjusts the engine exhaust amount based on the amount of throttling, and an injector that performs main injection and a sub-injection directly into a cylinder, a combination of an ECU, the injection and the exhaust throttle valve as exhaust gas temperature increase apparatus for, during an engine warm-up, performing and controlling the exhaust throttling by the exhaust valve and performing and controlling an exhaust gas temperature increase through combustion attributed to the main injection performed in an excess-air condition and combustion attributed to the sub-injection, an exhaust gas temperature sensor that monitors a state of temperature increase of the exhaust gas caused by performance of the exhaust gas temperature increase apparatus, and the ECU as monitor abnormality detection apparatus for determining whether the exhaust gas temperature sensor has an abnormality, and the ECU as exhaust gas temperature increase stop apparatus for stopping the operation of the exhaust gas temperature increase apparatus when the ECU determines that the exhaust gas temperature sensor has an abnormality.

摘要翻译： 排气温度提升装置具有排气节流阀，该排气节流阀基于节流量调节发动机排气量，以及直接进入气缸的主喷射和次喷射的喷射器，ECU的组合，喷射和 排气节流阀作为排气温度升高装置，用于在发动机预热期间，通过排气阀执行和控制排气节流，并且通过在过量空气中执行的主喷射进行燃烧执行和控制排气温度升高 归因于副喷射的状况和燃烧，排气温度传感器，其监测由排气温度升高装置的性能引起的废气的升温状态，ECU作为监视异常检测装置，用于确定排气 气体温度传感器有异常，而ECU作为废气温度调节 当ECU判断为排气温度传感器异常时，重新设定停止排气升温装置的运转的停止装置。

公开(公告)号：US5402641A

公开(公告)日：1995-04-04

申请号：US94799

申请日：1993-07-20

申请人： Kenji Katoh ,  Shinichi Takeshima ,  Toshiaki Tanaka ,  Satoshi Iguchi ,  Masato Goto ,  Tetsuro Kihara ,  Takamitsu Asanuma ,  Fumitada Murakami

发明人： Kenji Katoh ,  Shinichi Takeshima ,  Toshiaki Tanaka ,  Satoshi Iguchi ,  Masato Goto ,  Tetsuro Kihara ,  Takamitsu Asanuma ,  Fumitada Murakami

IPC分类号： F01N3/08 ,  B01D53/04 ,  B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F01N3/24 ,  F01N13/02 ,  F02D41/02 ,  F02D41/14 ,  F02D45/00

CPC分类号： B01D53/9481 ,  B01D53/0454 ,  B01D53/8696 ,  B01D53/9422 ,  B01D53/9495 ,  F01N13/009 ,  F01N3/0842 ,  F02D41/028 ,  F02D41/1446 ,  F02D41/1475 ,  B01D2255/2042 ,  B01D2255/20761 ,  F01N2240/18 ,  F01N2250/12 ,  F01N2390/02 ,  F01N2430/06 ,  F01N2570/04 ,  F01N3/20 ,  F02D2200/0606 ,  Y02T10/22

摘要： An NOx absorbent is installed in an exhaust conduit of an internal combustion engine capable of fuel combustion at lean air-fuel ratios. An oxygen concentration is repeatedly or continuously decreased by, for example, switching the air-fuel from the lean air-fuel ratio to a stoichiometric or rich air fuel ratio when the exhaust gas temperature is higher than 550.degree. C. or when NOx absorbent temperature is higher than 500.degree. C. As a result, the SOx absorbed in the NOx absorbent during lean air-fuel ratio, low temperature operation is released from the NOx absorbent, and the SOx-poisoned NOx absorbent is recovered.

摘要翻译： NOx吸收剂安装在能够以稀空燃比燃料燃烧的内燃机的排气管道中。 当废气温度高于550℃时，或者当NOx吸收温度高于550℃时，通过例如将空气燃料从稀空燃比切换到理论空燃比或浓空气燃料比来重复或连续地降低氧浓度 高于500℃。结果，在稀空燃比期间吸收在NOx吸收剂中的SO x，低温操作从NOx吸收剂释放，并且回收了SOx中毒的NOx吸收剂。

公开(公告)号：US5715679A

公开(公告)日：1998-02-10

申请号：US620768

申请日：1996-03-22

申请人： Takamitsu Asanuma ,  Tetsuro Kihara ,  Shinichi Takeshima ,  Toshiaki Tanaka ,  Kenji Katoh ,  Satoshi Iguchi

发明人： Takamitsu Asanuma ,  Tetsuro Kihara ,  Shinichi Takeshima ,  Toshiaki Tanaka ,  Kenji Katoh ,  Satoshi Iguchi

IPC分类号： B01D53/94 ,  F01N3/08 ,  F01N3/18 ,  F01N3/20 ,  F01N3/24 ,  F01N11/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F01N3/10

CPC分类号： B01D53/9481 ,  B01D53/9495 ,  F01N11/00 ,  F01N3/0842 ,  F01N3/0871 ,  F02D41/0275 ,  F02D41/1441 ,  F02D2200/0806 ,  F02D41/1402 ,  Y02T10/47

摘要： An exhaust purification device of an engine providing a NO.sub.x absorbent arranged in the exhaust passage. An O.sub.2 sensor generating a current proportional to the air-fuel ratio is arranged in the engine exhaust passage downstream of the NO.sub.x absorbent. The amount of NO.sub.x actually absorbed in the NO.sub.x absorbent at the time of release of the NO.sub.x is calculated on the basis of the output signal of this O.sub.2 sensor. On the basis of this calculated amount of NO.sub.x, correction is made so that the estimated amount of NO.sub.x represents the actual amount of absorption of NO.sub.x. When this corrected estimated amount of NO.sub.x reaches a set value, the action of releasing the NO.sub.x from the NO.sub.x absorbent is carried out.

摘要翻译： 发动机的排气净化装置，其设置在排气通路内。 产生与空燃比成比例的电流的O 2传感器布置在NOx吸收剂下游的发动机排气通道中。 基于该O2传感器的输出信号计算在NOx释放时在NOx吸收剂中实际吸收的NOx的量。 基于该计算出的NOx量，进行校正，使得NOx的估计量表示NOx的实际吸收量。 当该修正的NOx估计量达到设定值时，进行从NOx吸收剂释放NOx的动作。