-
公开(公告)号：US20090049826A1
公开(公告)日：2009-02-26
申请号：US12083873
申请日：2007-05-24
IPC分类号： F01N3/08
CPC分类号： F01N3/0871 , F01N3/0821 , F01N3/0842 , F01N11/00 , F01N13/0097 , F01N2550/05 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2610/03 , F01N2610/146 , Y02T10/47
摘要： An NOx adsorbent is arranged in an exhaust passage of an internal combustion engine, a fuel addition valve (28) is arranged in the exhaust passage upstream of the NOx adsorbent, and, when the NOx adsorbent should be made to release the NOx, the fuel addition valve (28) adds fuel to the NOx adsorbent in the required fuel addition amount to make the air-fuel ratio of the exhaust gas flowing into the NOx adsorbent temporarily rich. In this case, the required fuel addition amount is added divided into a plurality of operations. The fuel addition rate of the fuel addition valve (28) is detected and the overall addition time from the start of the initial divided addition to the end of the final divided addition is corrected in accordance with the fuel addition rate. Further, the divided addition time, interval, or number of divided additions is corrected so that the amount of fuel actually added from the fuel addition valve (28) is maintained at the required fuel addition amount.
摘要翻译： NOx吸附剂配置在内燃机的排气通路中，燃料添加阀（28）配置在NOx吸附剂上游侧的排气通路中，在使NOx吸附剂排出NOx时， 添加阀（28）以所需的燃料添加量向NOx吸附剂添加燃料，以使流入NOx吸附剂的废气的空燃比暂时变浓。 在这种情况下，所需的燃料添加量被分成多个操作。 检测燃料添加阀（28）的燃料添加率，并且根据燃料添加率校正从初始分配添加开始到最终分配加法的结束的总添加时间。 此外，分配的加法时间，间隔或分开的加法次数被校正，使得从燃料添加阀（28）实际添加的燃料量保持在所需的燃料添加量。
-
32.发明授权公开(公告)号：US06381952B1
公开(公告)日：2002-05-07
申请号：US09696024
申请日：2000-10-26
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。
-
33.发明授权公开(公告)号：US06901743B2
公开(公告)日：2005-06-07
申请号：US10452636
申请日：2003-06-03
申请人： Takamitsu Asanuma , Toshiaki Tanaka , Shinya Hirota , Takanori Ueda , Tetsuya Yamashita , Yasuaki Nakano
发明人： Takamitsu Asanuma , Toshiaki Tanaka , Shinya Hirota , Takanori Ueda , Tetsuya Yamashita , Yasuaki Nakano
CPC分类号： F01N3/2013 , F01N3/20 , F01N2240/26 , F02M26/15 , F02M26/37 , Y02T10/26
摘要： An exhaust gas collecting apparatus, of an internal combustion engine including a collection vessel that can hold exhaust gas, an exhaust gas taking-out passage through which exhaust gas is introduced from an exhaust passage to the collection vessel, an exhaust gas introduction passage through which the exhaust gas is introduced from the collection vessel to the exhaust passage at a position upstream from the catalytic converter, a first valve that is switchable between a position where the introduction of the exhaust gas from the exhaust passage to the exhaust gas taking-out passage is permitted and a position where the introduction of the exhaust gas is prevented, and a second valve that is switchable between a position where the introduction of the exhaust gas through the exhaust gas introduction passage is permitted and a position where the introduction of the exhaust gas is prevented.
摘要翻译： 一种内燃机的废气收集装置，包括可容纳废气的收集容器，排气从废气通道引入到收集容器的废气取出通道，排气导入通道， 废气从催化转化器上游的位置从收集容器引入排气通道，第一阀可在从排气通道排出到废气取出通道的位置 并且能够防止排气的引入的位置，以及可以在允许通过排气导入通道引入排气的位置和排气的引入位置之间切换的第二阀 被阻止
-
公开(公告)号：US07752838B2
公开(公告)日：2010-07-13
申请号：US11885153
申请日：2006-10-04
IPC分类号： F01N3/00
CPC分类号： B01D53/9431 , B01D53/9495 , B01D2255/91 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N9/00 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F01N2610/146 , Y02A50/2344 , Y02T10/47
摘要： A device for purifying exhaust gas of an internal combustion engine comprising a NOx catalyst device, fuel feeding means for feeding additional fuel into combusted gas flowing into the NOx catalyst device during the regeneration treatment, and a NOx concentration sensor arranged on the exhaust downstream of the NOx catalyst device, wherein when the NOx concentration detected by the NOx concentration sensor is lower than a preset concentration during the regeneration treatment of this time, the amount of NOx absorbed by the NOx catalyst device during a preset period until the regeneration treatment of the next time is estimated by utilizing the NOx concentration sensor, and when the absorbed amount of NOx is smaller than a preset amount, it is decided that the amount of additional fuel fed during the regeneration processing of this time had been abnormally decreased.
摘要翻译： 一种用于净化内燃机废气的装置，包括NOx催化装置，用于在再生处理期间将附加燃料供给到流入NOx催化剂装置的燃烧气体中的燃料供给装置，以及配置在排气下游的排气口的NOx浓度传感器 NO x催化剂装置，其中，当在该再生处理期间，由NOx浓度传感器检测到的NOx浓度低于预先设定的浓度时，由NOx催化剂装置吸收的NOx的量在下一次的再生处理之前的预设期间内 通过利用NOx浓度传感器来估计时间，并且当NOx的吸收量小于预设量时，判定在该时间的再生处理中供给的附加燃料量已经异常地降低。
-
公开(公告)号：US08074446B2
公开(公告)日：2011-12-13
申请号：US12227376
申请日：2007-07-12
IPC分类号： F01N3/00
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, 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.
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。 当还原剂添加阀发生堵塞时，增加了由富穗控制执行装置进行富穗控制时排气中的空燃比降低的次数。
-
公开(公告)号：US20090151332A1
公开(公告)日：2009-06-18
申请号：US12227376
申请日：2007-07-12
IPC分类号： F01N9/00
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, 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.
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。 当还原剂添加阀发生堵塞时，增加了由富穗控制执行装置进行富穗控制时排气中的空燃比降低的次数。
-
公开(公告)号：US20080314025A1
公开(公告)日：2008-12-25
申请号：US11885153
申请日：2006-10-04
IPC分类号： F01N9/00
CPC分类号： B01D53/9431 , B01D53/9495 , B01D2255/91 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N9/00 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F01N2610/146 , Y02A50/2344 , Y02T10/47
摘要： A device for purifying exhaust gas of an internal combustion engine comprising a NOx catalyst device, fuel feeding means for feeding additional fuel into combusted gas flowing into the NOx catalyst device during the regeneration treatment, and a NOx concentration sensor arranged on the exhaust downstream of the NOx catalyst device, wherein when the NOx concentration detected by the NOx concentration sensor is lower than a preset concentration during the regeneration treatment of this time, the amount of NOx absorbed by the NOx catalyst device during a preset period until the regeneration treatment of the next time is estimated by utilizing the NOx concentration sensor, and when the absorbed amount of NOx is smaller than a preset amount, it is decided that the amount of additional fuel fed during the regeneration processing of this time had been abnormally decreased.
摘要翻译： 一种用于净化内燃机废气的装置，包括NOx催化装置，用于在再生处理期间将附加燃料供给到流入NOx催化剂装置的燃烧气体中的燃料供给装置，以及配置在排气下游的排气口的NOx浓度传感器 NO x催化剂装置，其中，当在该再生处理期间，由NOx浓度传感器检测到的NOx浓度低于预先设定的浓度时，由NOx催化剂装置吸收的NOx的量在下一次的再生处理之前的预设期间内 通过利用NOx浓度传感器来估计时间，并且当NOx的吸收量小于预设量时，判定在该时间的再生处理中供给的附加燃料量已经异常地降低。
-
公开(公告)号：US20080098729A1
公开(公告)日：2008-05-01
申请号：US11883936
申请日：2006-12-01
IPC分类号： F01N3/10
CPC分类号： F01N3/0814 , B01D53/90 , B01D53/9422 , B01D53/9486 , B01D53/9495 , B01D2251/208 , B01D2255/91 , F01N3/035 , F01N3/0835 , F01N3/0842 , F01N3/106 , F01N3/2006 , F01N9/00 , F01N11/002 , F01N11/007 , F01N13/0097 , F01N2610/03 , F02B37/00 , F02D41/0255 , F02D41/027 , F02D41/0275 , F02D41/10 , Y02T10/26 , Y02T10/47
摘要： A device for purifying exhaust gas of an internal combustion engine is provided, equipped with an HC catalyst having the ability to oxidize HC, as well as adsorb HC, and release HC which it has adsorbed, and there exists a specific condition where the amount to release HC becomes greater than the amount to oxidize HC, wherein the device for purifying exhaust gas of an internal combustion engine executes an HC feed control for feeding HC to the HC catalyst. The amount of HC fed to the HC catalyst is decreased by the HC feed control or the HC feed control is discontinued when the specific condition is established during execution of the HC feed control.
摘要翻译： 提供了一种用于净化内燃机废气的装置，其具有能够使HC氧化并且吸附HC并释放其吸附的HC的HC催化剂，并且存在如下特定条件： 释放HC变得大于氧化HC的量，其中用于净化内燃机的废气的装置执行HC供给控制以将HC供给到HC催化剂。 当在HC进料控制的执行期间建立特定条件时，通过HC进料控制或HC进料控制停止供给到HC催化剂的HC的量。
-
公开(公告)号：US20070277513A1
公开(公告)日：2007-12-06
申请号：US11660518
申请日：2006-08-09
IPC分类号： F01N3/10
CPC分类号： B01D53/9422 , B01D2251/208 , B01D2255/1021 , B01D2255/1023 , B01D2255/904 , B01D2255/915 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/0864 , F01N3/103 , F01N3/2033 , F01N13/009 , F02B37/00 , Y02T10/26
摘要： An engine exhaust passage is provided with a fuel addition valve (14) for adding fuel in the form of atomized drops, an oxidation catalyst (11), and an NOx storage and reduction catalyst (12) in that order. The oxidation catalyst (11) carries as a precious metal not only platinum Pt, but also palladium Pd. A molar ratio of the platinum Pt with respect to the sum of the platinum Pt and palladium Pd carried on the oxidation catalyst (11) is set to between about 50 percent to about 80 percent.
摘要翻译： 发动机排气通道设置有用于以雾化液滴的形式添加燃料的燃料添加阀（14），氧化催化剂（11）和NO x x储存和还原催化剂（12） 那个订单。 氧化催化剂（11）不仅携带铂铂，而且还载钯钯作为贵金属。 将铂Pt相对于载持在氧化催化剂（11）上的铂Pt和钯Pd的总和的摩尔比设定在约50％至约80％之间。
-
公开(公告)号：US07845163B2
公开(公告)日：2010-12-07
申请号：US11883936
申请日：2006-12-01
IPC分类号： F01N3/00
CPC分类号： F01N3/0814 , B01D53/90 , B01D53/9422 , B01D53/9486 , B01D53/9495 , B01D2251/208 , B01D2255/91 , F01N3/035 , F01N3/0835 , F01N3/0842 , F01N3/106 , F01N3/2006 , F01N9/00 , F01N11/002 , F01N11/007 , F01N13/0097 , F01N2610/03 , F02B37/00 , F02D41/0255 , F02D41/027 , F02D41/0275 , F02D41/10 , Y02T10/26 , Y02T10/47
摘要： A device for purifying exhaust gas of an internal combustion engine is provided, equipped with an HC catalyst having the ability to oxidize HC, as well as adsorb HC, and release HC which it has adsorbed, and there exists a specific condition where the amount to release HC becomes greater than the amount to oxidize HC, wherein the device for purifying exhaust gas of an internal combustion engine executes an HC feed control for feeding HC to the HC catalyst. The amount of HC fed to the HC catalyst is decreased by the HC feed control or the HC feed control is discontinued when the specific condition is established during execution of the HC feed control.
摘要翻译： 提供了一种用于净化内燃机废气的装置，其具有能够使HC氧化并且吸附HC并释放其吸附的HC的HC催化剂，并且存在如下特定条件： 释放HC变得大于氧化HC的量，其中用于净化内燃机的废气的装置执行HC供给控制以将HC供给到HC催化剂。 当在HC进料控制的执行期间建立特定条件时，通过HC进料控制或HC进料控制停止供给到HC催化剂的HC的量。
-
-
-
-
-
-
-
-
-
搜索结果
137 条记录 (耗时 0.036 秒)
