公开(公告)号：US08051642B2

公开(公告)日：2011-11-08

申请号：US12224490

申请日：2006-11-22

申请人： Masashi Gabe ,  Daiji Nagaoka

发明人： Masashi Gabe ,  Daiji Nagaoka

IPC分类号： F01N3/18

CPC分类号： B01D53/9495 ,  B01D53/9431 ,  F01N3/0842 ,  F01N3/0885 ,  F01N2550/03 ,  F02D41/028 ,  F02D2200/0814 ,  F02D2200/0818

摘要： Method of controlling an NOx purification system provided with an NOx occlusion reduction catalyst and a control unit that conducts NOx regeneration control and sulfur poisoning regeneration control. A degree of deterioration of the NOx occlusion reduction catalyst due to sulfur poisoning is estimated on the basis of an amount of an integrated value of a difference between an oxygen concentration on an outlet side of the NOx occlusion reduction catalyst and an oxygen concentration on an inlet side thereof. In so doing, the amount of sulfur poisoning in the NOx occlusion reduction catalyst is accurately estimated, excessive sulfur poisoning regeneration can be avoided, and fuel consumption can be reduced.

摘要翻译： 控制具有NOx吸留还原催化剂的NOx净化系统和进行NOx再生控制和硫中毒再生控制的控制单元的控制方法。 基于硫化中毒的NOx吸留还原催化剂的劣化程度，根据NOx吸留还原催化剂的出口侧的氧浓度与入口的氧浓度之差的积分值， 侧。 这样做，能够准确地估计NOx吸留还原催化剂中的硫中毒量，可以避免过度的硫中毒再生，能够降低燃料消耗。

公开(公告)号：US08037676B2

公开(公告)日：2011-10-18

申请号：US12084131

申请日：2006-09-20

申请人： Masashi Gabe ,  Daiji Nagaoka

发明人： Masashi Gabe ,  Daiji Nagaoka

IPC分类号： F01N3/00

CPC分类号： B01D53/9495 ,  F01N3/0253 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/002 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2560/025 ,  F01N2610/03 ,  F02D41/0275 ,  F02D41/029 ,  Y02T10/22 ,  Y02T10/47

摘要： An exhaust gas purification system including a reducing agent supplying apparatus and an exhaust gas purification apparatus, in that order from an upstream side of an exhaust passage in an internal combustion engine, and a control unit for controlling an amount of reducing agent supplied into the exhaust gas to recover purification capability of the exhaust gas purification apparatus. A concentration of the reducing agent in the exhaust gas, which flows into the exhaust gas purification apparatus, is varied temporally. The reducing agent is supplied in a proper amount to efficiently recover the purification capability. At the same time, the outflow of the reducing agent to the downstream side of the exhaust gas purification apparatus can be prevented.

摘要翻译： 从内燃机的排气通路的上游侧开始依次包括还原剂供给装置和排气净化装置的排气净化系统，以及用于控制供给到排气中的还原剂的量的控制单元 气体以回收废气净化装置的净化能力。 流入废气净化装置的排气中的还原剂的浓度在时间上变化。 以适当的量供给还原剂以有效地回收净化能力。 同时，可以防止还原剂向废气净化装置的下游侧流出。

公开(公告)号：US07797927B2

公开(公告)日：2010-09-21

申请号：US12085093

申请日：2006-09-20

申请人： Daiji Nagaoka ,  Masashi Gabe ,  Takehito Imai ,  Shinji Hara

发明人： Daiji Nagaoka ,  Masashi Gabe ,  Takehito Imai ,  Shinji Hara

IPC分类号： F01N3/00

CPC分类号： B01D53/9495 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0871 ,  F01N3/208 ,  F01N9/002 ,  F01N11/002 ,  F01N13/0097 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2900/0412 ,  F02D41/0047 ,  F02D41/028 ,  F02D41/1446 ,  F02D41/146 ,  F02D2200/602 ,  Y02T10/47

摘要： The degree of a deterioration in catalyst is determined when the following requirements are satisfied: the operating state of an internal combustion engine (E) is in a predetermined operating state; and the temperature (T1m) of an exhaust gas, which flows into a catalyst (12), is in a second temperature range (ΔT80) in which the upper limit of the second temperature range (ΔT80) is 10% below the upper limit of a first temperature range (ΔT100) between the activation start temperature (Ta) and the activation end temperature (Tb) of the catalyst (12) before a deterioration and the lower limit of the second temperature range (ΔT80) is 10% above the lower limit of the first temperature range (ΔT100). A deterioration index temperature (Tic) is regarded as a shift level of light-off characteristics of the catalyst (12) toward the higher temperature side, and the deterioration index temperature (Tic) is added to the reference determination temperature (T0b) before the deterioration, and the sum is used as the determination temperature (T0) for exhaust gas temperature raising control. According to the above constitution, the degree of deterioration of the catalyst (12) can be estimated without using a concentration sensor for an exhaust gas component such as an NOx concentration sensor with high accuracy, and the worsening of the state of the exhaust gas is suppressed while minimizing the worsening of the fuel consumption.

摘要翻译： 当满足以下要求时，确定催化剂的劣化程度：内燃机（E）的运行状态处于预定的运行状态; 流入催化剂（12）的废气的温度（T1m）处于第二温度范围（＆Dgr; T80）的第二温度范围（＆Dgr; T80），其中第二温度范围（＆Dgr; T80）的上限为10％以下 劣化前的催化剂（12）的活化开始温度（Ta）和活化终止温度（Tb）之间的第一温度范围（＆Dgr; T100）的上限和第二温度范围的下限（＆Dgr; T80）比第一温度范围（＆Dgr; T100）的下限高10％。 劣化指数温度（Tic）被认为是催化剂（12）朝向高温侧的发光特性的偏移水平，并且将劣化指数温度（Tic）加到基准确定温度（T0b）之前 劣化，并且将该和作为废气升温控制的测定温度（T0）。 根据上述结构，可以在不使用高精度的NOx浓度传感器等排气成分用浓度传感器的情况下推定催化剂（12）的劣化程度，废气状态的恶化为 在最小化燃料消耗的恶化的同时被抑制。

公开(公告)号：US20100115926A1

公开(公告)日：2010-05-13

申请号：US12451382

申请日：2008-04-16

申请人： Daiji Nagaoka ,  Masashi Gabe ,  Hiroyuki Yuza

发明人： Daiji Nagaoka ,  Masashi Gabe ,  Hiroyuki Yuza

IPC分类号： F01N9/00 ,  F01N3/10

CPC分类号： F01N3/208 ,  B01D53/9418 ,  B01D53/9459 ,  B01D53/9472 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2255/202 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/206 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/90 ,  B01D2257/404 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/2073 ,  F01N9/00 ,  F01N13/009 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02A50/2344 ,  Y02T10/22 ,  Y02T10/24 ,  Y02T10/47

摘要： An NOx purification system having a selective reduction catalyst, adapted so that even when no ammonia or urea is supplied, NOx is converted to ammonia by a first catalyst including a lean NOx catalyst or a ternary catalyst at ammonia formation control and the ammonia is adsorbed by the selective reduction catalyst disposed downstream and so that by the adsorbed ammonia, there is carried out reduction purification of the NOx contained in the exhaust gas when no ammonia formation control is performed by the selective reduction catalyst. At the ammonia formation control, an ammonia adsorption target amount being a target value of ammonia adsorbed by the selective reduction catalyst is computed, and the ammonia formation control is carried out only when a cumulative value of an ammonia formation amount formed by the first catalyst at the ammonia formation control is under the ammonia adsorption target amount. Consequently, ammonia is stably supplied in just proportion to the selective reduction catalyst.

摘要翻译： 一种具有选择性还原催化剂的NOx净化系统，其适于使得即使没有供应氨或尿素，也可以通过包含贫NOx催化剂或三元催化剂在氨形成控制下的第一催化剂将NOx转化为氨，并且氨被 选择还原催化剂设置在下游，并且通过吸附的氨，当通过选择还原催化剂进行氨形成控制时，对排气中所含的NOx进行还原净化。 在氨形成控制中，计算作为选择还原催化剂吸附的氨的目标值的氨吸附目标量，仅在第1催化剂形成的氨形成量的累积值在 氨形成控制在氨吸附目标量之下。 因此，与选择还原催化剂成正比地稳定地供给氨。

公开(公告)号：US07448203B2

公开(公告)日：2008-11-11

申请号：US10501405

申请日：2003-02-10

申请人： Masashi Gabe ,  Daiji Nagaoka

发明人： Masashi Gabe ,  Daiji Nagaoka

IPC分类号： F02M25/06

CPC分类号： F01N3/0814 ,  F01N3/0842 ,  F01N3/2828 ,  F01N2560/026 ,  F02B29/0406 ,  F02B37/00 ,  F02D11/105 ,  F02D41/0002 ,  F02D41/0055 ,  F02D41/0245 ,  F02D41/0275 ,  F02D41/1441 ,  F02D41/146 ,  F02D41/402 ,  F02D2200/0806 ,  F02D2250/18 ,  F02M26/05 ,  F02M26/15 ,  F02M26/23 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/44

摘要： An exhaust gas decontamination system and a method of exhaust gas decontamination wherein in the regeneration of NOx occlusion reduction type catalyst with respect to a lean-burn engine or diesel engine, even in the instance of rich burning accompanied by EGR the NOx released from the NOx occlusion reduction type catalyst can satisfactorily be reduced and purged to thereby exhibit a high NOx removal ratio. The exhaust gas decontamination system (1) provided with the NOx occlusion reduction type catalyst (30) includes a control unit (C1) comprising a.norrnal control operation feature (C10), a regeneration control initiation judging feature (C20), a catalyst activation control-operation feature (C30) and a rich-burn control operation feature (C40) capable of lowering the concentration of oxygen in the exhaust gas so as to realize such a constitution that the catalyst is carried out just before rich burning accompanied by EGR.

摘要翻译： 废气净化系统和排气净化方法，其中在稀燃燃烧发动机或柴油发动机的NO x再吸收还原型催化剂的再生中，即使在富燃燃烧的情况下，伴随着 通过EGR，从NO x阻塞还原型催化剂释放的NO x x可以令人满意地减少并清洗，从而表现出高的NO x脱除率 。 设置有NO x阻塞还原型催化剂（30）的排气净化系统（1）包括控制单元（C1），其包括不同的控制操作特征（C 10），再生控制开始 判断特征（C 20），能够降低排气中的氧浓度的催化剂活化控制运行特征（C30）和浓燃烧控制运转特征（C 40），从而实现催化剂 是在燃烧之前伴随着EGR进行的。

公开(公告)号：US20080072580A1

公开(公告)日：2008-03-27

申请号：US11659375

申请日：2005-07-26

申请人： Daiji Nagaoka ,  Masashi Gabe

发明人： Daiji Nagaoka ,  Masashi Gabe

IPC分类号： F01N3/20

CPC分类号： F01N3/0814 ,  B01D53/30 ,  B01D53/9495 ,  F01N3/0842 ,  F01N13/008 ,  F01N13/0097 ,  F01N2240/20 ,  F01N2470/18 ,  F01N2560/025 ,  F01N2570/14

摘要： A guide structure for guiding exhaust gas flow to an exhaust gas sensor (55) in exhaust gas purification devices (50A to 50F) installed in an exhaust passage, wherein a plurality of exhaust gas purification units (52, 53) are disposed in series in the containers of the devices (50A to 50F), and the exhaust gas sensor (55) is installed between the exhaust gas purification units (52, 53). Thus, in the devices in which the plurality of exhaust gas purification units (52, 53) are disposed in series in the catalyst container installed in the exhaust passage, the responsibility of the exhaust gas sensor installed between the exhaust gas purification units (52, 53) can be increased.

摘要翻译： 引导结构，用于将排气流引导到排气净化装置（50A〜50F）中的排气净化装置（50A〜50F）中，所述排气净化装置（50A〜50F）中设置有排气净化单元（52,53） 串联在设备的容器（50A至50F）中，并且废气传感器（55）安装在排气净化单元（52,53）之间。 因此，在排气净化单元（52,53）中排列气体净化单元（52,53）串联安装在排气通道内的催化剂容器中的装置中， 53）可以增加。

公开(公告)号：US07051520B2

公开(公告)日：2006-05-30

申请号：US10971110

申请日：2004-10-25

申请人： Daiji Nagaoka ,  Masashi Gabe

发明人： Daiji Nagaoka ,  Masashi Gabe

IPC分类号： F01N3/00

CPC分类号： F02D41/028 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0885 ,  F01N9/00 ,  F01N11/002 ,  F01N11/007 ,  F01N2250/12 ,  F01N2260/04 ,  F01N2430/00 ,  F01N2550/03 ,  F01N2570/04 ,  F01N2570/14 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/1454 ,  F02D41/405 ,  Y02A50/2344 ,  Y02C20/10 ,  Y02T10/47

摘要： In an exhaust gas purifying system (1) for removing NOx by a NOx occlusion reduction type catalyst (11) for exhaust gas of an internal combustion engine, the air-fuel ratio in the exhaust gas is controlled by setting the target air-fuel ratio at a predetermined first air-fuel ratio which is a rich air-fuel ratio by a sulfur purge control means (C24) after the start of sulfur purge, and thereafter, the air-fuel ratio in the exhaust gas is controlled by changing the target air-fuel ratio to the predetermined second air-fuel ratio which is a stoichiometric air-fuel ratio, when the oxygen concentration (Od) in the downstream of the NOx occlusion reduction type catalyst (11) measured by an oxygen concentration detection means (C12) becomes lower than a predetermined threshold. Thereby, sulfur component accumulated in the NOx occlusion reduction type catalyst (11) can be purged efficiently, while preventing carbon monoxide from being discharged into the atmospheric air.

摘要翻译： 在用于通过内燃机排气的NOx吸留还原型催化剂（11）除去NOx的废气净化系统（1）中，通过将目标空燃比设定为目标空燃比来控制排气中的空燃比 在开始硫吹扫之后通过硫清除控制装置（C 24）以预定的第一空燃比进行浓空燃比，然后通过改变排气中的空燃比来控制排气中的空燃比 当通过氧浓度检测装置测量在NOx吸留还原型催化剂（11）的下游的氧浓度（Od）时，目标空燃比达到理论空燃比的预定第二空燃比（ C 12）变得低于预定阈值。 由此，能够有效地清除蓄积在NOx吸留还原型催化剂（11）中的硫成分，同时防止一氧化碳排入大气中。

公开(公告)号：US20050284138A1

公开(公告)日：2005-12-29

申请号：US11216093

申请日：2005-09-01

申请人： Takehito Imai ,  Tsuneo Suzuki ,  Masashi Gabe ,  Naofumi Ochi

发明人： Takehito Imai ,  Tsuneo Suzuki ,  Masashi Gabe ,  Naofumi Ochi

IPC分类号： F02D43/00 ,  B01D39/14 ,  B01D46/42 ,  B01D53/86 ,  B01D53/94 ,  F01N3/02 ,  F01N3/023 ,  F01N3/025 ,  F01N3/029 ,  F01N3/035 ,  F01N13/02 ,  F02D41/02 ,  F02D41/04 ,  F02D41/40 ,  F01N3/00

CPC分类号： F02D41/1448 ,  F01N3/023 ,  F01N3/0231 ,  F01N3/035 ,  F01N13/009 ,  F01N13/0097 ,  F01N2430/08 ,  F01N2430/085 ,  F02D41/029 ,  F02D41/405 ,  F02D2200/0802 ,  F02D2200/0812 ,  Y02T10/44

摘要： A regeneration control method for regenerating a continuously regenerating diesel particulate filter device capable of regenerating a filter by efficiently removing PM while suppressing the deterioration of fuel consumption and preventing a drivability from being deteriorated, wherein the clogged-state of the filter is judged in three or more phases of the clogged-state and, when the clogged-state of the filter reaches a specified phase, a specified regenerating mode operation set in correspondence with the reached phase is performed.

摘要翻译： 一种再生控制方法，用于再生能够通过有效地除去PM来再生过滤器，同时抑制燃料消耗的劣化并防止驾驶性能劣化的再生控制方法，其中过滤器的堵塞状态被判断为三个或 更多的堵塞状态，并且当过滤器的堵塞状态达到指定阶段时，执行与达到的相位相对应地设定的指定再生模式操作。

公开(公告)号：US20050132698A1

公开(公告)日：2005-06-23

申请号：US10981636

申请日：2004-11-05

申请人： Daiji Nagaoka ,  Masashi Gabe

发明人： Daiji Nagaoka ,  Masashi Gabe

IPC分类号： B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N13/02 ,  F02B29/04 ,  F02D41/02 ,  F02D41/14 ,  F02M25/07 ,  F01N3/00 ,  F01N3/10

CPC分类号： B01D53/9495 ,  B01D53/9431 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N13/0097 ,  F01N2570/04 ,  F01N2570/14 ,  F02B29/0406 ,  F02D41/028 ,  F02D41/1475 ,  F02M26/05 ,  F02M26/23 ,  Y02A50/2344

摘要： In an exhaust gas purifying system (1) that purifies NOx for the exhaust gas from an internal combustion engine (E) through sulfur purging control by a NOx occlusion reduction type catalyst (41), sulfur purging is judged to have started when the oxygen concentration (Co) detected by an oxygen concentration detection means (54) disposed downstream of the NOx occlusion reduction type catalyst (41) drops from a first predetermined oxygen concentration indicating that the NOx discharge condition to a second predetermined oxygen concentration indicating that NOx discharge has ended and that SOx discharge has started. Accordingly, during sulfur purging control by the NOx occlusion reduction type catalyst (41), consideration is given to the discharge of NOx without sulfur purging at the start of sulfur purging control; furthermore, this timing is judged by monitoring the concentration of oxygen downstream of the NOx occlusion reduction type catalyst (41), thus optimizing sulfur purging control.

摘要翻译： 在通过由NOx吸留还原型催化剂（41）进行的硫清除控制来净化来自内燃机（E）的排气的NOx的废气净化系统（1）中，当氧浓度 通过设置在NOx吸留还原型催化剂（41）下游的氧浓度检测装置（54）检测的（Co）从表示NOx排出结束的第一预定氧浓度的第一预定氧浓度下降到指示NOx排放的第二预定氧浓度 并且SOx放电已经开始。 因此，在通过NOx吸留还原型催化剂（41）进行的硫净化控制中，考虑在硫清除控制开始时不进行硫净化的NOx排出; 此外，通过监测NOx吸留还原型催化剂（41）下游的氧浓度来判断该时刻，从而优化硫清除控制。

公开(公告)号：US20050112046A1

公开(公告)日：2005-05-26

申请号：US10971110

申请日：2004-10-25

申请人： Daiji Nagaoka ,  Masashi Gabe

发明人： Daiji Nagaoka ,  Masashi Gabe

IPC分类号： F02D45/00 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N9/00 ,  F01N11/00 ,  F02B37/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02D41/40 ,  B01J8/02 ,  C01B21/00 ,  C01B23/00 ,  C01B25/00 ,  C01G28/00 ,  C01G30/00 ,  C01B31/00

CPC分类号： F02D41/028 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0885 ,  F01N9/00 ,  F01N11/002 ,  F01N11/007 ,  F01N2250/12 ,  F01N2260/04 ,  F01N2430/00 ,  F01N2550/03 ,  F01N2570/04 ,  F01N2570/14 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/1454 ,  F02D41/405 ,  Y02A50/2344 ,  Y02C20/10 ,  Y02T10/47

摘要： In an exhaust gas purifying system (1) for removing NOx by a NOx occlusion reduction type catalyst (11) for exhaust gas of an internal combustion engine, the air-fuel ratio in the exhaust gas is controlled by setting the target air-fuel ratio at a predetermined first air-fuel ratio which is a rich air-fuel ratio by a sulfur purge control means (C24) after the start of sulfur purge, and thereafter, the air-fuel ratio in the exhaust gas is controlled by changing the target air-fuel ratio to the predetermined second air-fuel ratio which is a stoichiometric air-fuel ratio, when the oxygen concentration (Od) in the downstream of the NOx occlusion reduction type catalyst (11) measured by an oxygen concentration detection means (C12) becomes lower than a predetermined threshold. Thereby, sulfur component accumulated in the NOx occlusion reduction type catalyst (11) can be purged efficiently, while preventing carbon monoxide from being discharged into the atmospheric air.

摘要翻译： 在用于通过内燃机排气的NOx吸留还原型催化剂（11）除去NOx的废气净化系统（1）中，通过将目标空燃比设定为目标空燃比来控制排气中的空燃比 在开始硫吹扫之后通过硫清除控制装置（C 24）以预定的第一空燃比进行浓空燃比，然后通过改变排气中的空燃比来控制排气中的空燃比 当通过氧浓度检测装置测量在NOx吸留还原型催化剂（11）的下游的氧浓度（Od）时，目标空燃比达到理论空燃比的预定第二空燃比（ C 12）变得低于预定阈值。 由此，能够有效地清除蓄积在NOx吸留还原型催化剂（11）中的硫成分，同时防止一氧化碳排入大气中。