公开(公告)号：US08904756B2

公开(公告)日：2014-12-09

申请号：US12990680

申请日：2009-03-12

申请人： Kimikazu Yoda ,  Takaaki Itou ,  Keisuke Sano ,  Kazuhiro Wakao

发明人： Kimikazu Yoda ,  Takaaki Itou ,  Keisuke Sano ,  Kazuhiro Wakao

IPC分类号： F01N3/00 ,  F01N3/08 ,  F01N11/00

CPC分类号： F01N3/0814 ,  F01N3/0878 ,  F01N3/0885 ,  F01N11/002 ,  F01N2410/00 ,  F01N2550/03 ,  Y02T10/47

摘要： An exhaust emission control system of an internal combustion engine includes: a bypass passage (22) provided in an exhaust passage (14) of the engine and arranged to bypass a main passage (16) as a part of the exhaust passage, a NOx adsorbent (28) provided in the bypass passage and adapted to adsorb at least NOx as one of components contained in exhaust gas, a channel switching device (30) that switches a channel of the exhaust gas between the main passage and the bypass passage, an adsorption control device (50) that controls the channel switching device, based on operating conditions of the engine, so as to cause the exhaust gas to flow through the bypass passage, and an adsorbing capability determining device (50) that determines, when the adsorbing capability of the NOx adsorbent degrades, whether the degradation in the adsorbing capability is a surmountable degradation from which the NOx adsorbent can recover, or an insurmountable degradation from which the NOx adsorbent cannot recover.

摘要翻译： 内燃机的废气排放控制系统包括：旁通通路（22），设置在发动机的排气通路（14）中，并且设置成旁路作为排气通路的一部分的主通路（16），NOx吸附剂 （28），其设置在所述旁通通路内，并且至少吸附作为废气中所含的成分之一的NOx;流路切换装置（30），其在所述主通路与旁通通路之间切换排气的通道，吸附 控制装置（50），其基于发动机的运转条件控制所述通道切换装置，以使所述排气流过所述旁通通路;吸附能力判定装置（50），其在吸附能力 的NOx吸附剂的劣化，NOx吸附剂能够回收的难以降解的吸附能力的劣化，NOx吸附剂不能再次的不可克服的劣化 盖。

公开(公告)号：US08627650B2

公开(公告)日：2014-01-14

申请号：US12867282

申请日：2009-02-25

申请人： Keisuke Sano ,  Takaaki Itou ,  Kimikazu Yoda ,  Kazuhiro Wakao

发明人： Keisuke Sano ,  Takaaki Itou ,  Kimikazu Yoda ,  Kazuhiro Wakao

IPC分类号： F01N13/08 ,  F01N3/10 ,  F01N9/00

CPC分类号： B60W20/15 ,  B60K1/02 ,  B60K6/365 ,  B60K6/445 ,  B60L2240/441 ,  B60L2240/445 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W2510/0628 ,  B60W2510/0638 ,  B60W2510/0676 ,  B60W2520/10 ,  F01N3/0814 ,  F01N3/0878 ,  F02D41/123 ,  Y02T10/54 ,  Y02T10/6239 ,  Y02T10/6286

摘要： An exhaust gas purification device has: a bypass passage (20) disposed in an exhaust passage (15) of an internal combustion engine (10); an adsorbent (21) which is disposed in the bypass passage (20), and adsorbs unburned components in exhaust gas at a low temperature and desorbs the adsorbed unburned components at a high temperature; and an exhaust gas purification catalyst (22) which is disposed in the exhaust passage (15) at a downstream side of a portion where the bypass passage (20) merges, and purifies unburned components in exhaust gas; and a desorption amount adjustment (19) unit that adjusts the desorption amount of unburned components adsorbed by the adsorbent (21) based on an integrated fuel cut air amount (fgs), which is an integrated value of air amount taken into a combustion chamber of the internal combustion engine (10) during execution of fuel cut.

摘要翻译： 排气净化装置具有：设置在内燃机（10）的排气通路（15）内的旁通路（20）。 设置在旁通通路（20）内的吸附剂（21），在低温下吸附排气中的未燃烧成分，并在高温下解吸吸附的未燃烧成分; 和废气净化催化剂（22），其在所述旁通通路（20）合流的部分的下游侧设置在所述排气通路（15）中，并净化废气中的未燃烧成分; 和解吸量调整装置（19），其基于作为吸入到燃烧室的燃烧室中的空气量的积分值的综合燃料切断空气量（fgs）来调整吸附剂（21）吸附的未燃成分的解吸量， 内燃机（10）在执行燃料切断期间。

公开(公告)号：US08245497B2

公开(公告)日：2012-08-21

申请号：US12594865

申请日：2008-03-21

申请人： Kimikazu Yoda ,  Takaaki Itou ,  Keisuke Sano ,  Kazuhiro Wakao

发明人： Kimikazu Yoda ,  Takaaki Itou ,  Keisuke Sano ,  Kazuhiro Wakao

IPC分类号： F01N3/00 ,  F01N3/10

CPC分类号： F01N11/00 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2257/404 ,  F01N3/0807 ,  F01N3/18 ,  F01N3/20 ,  F01N2570/14 ,  Y02A50/2344 ,  Y02T10/20 ,  Y02T10/47

摘要： The present invention relates to an exhaust emission control device having an NOx adsorbent, and makes it possible to judge whether the performance of the NOx adsorbent is degraded temporarily or permanently. The amounts of NOx and water adsorbed by the NOx adsorbent are measured during an actual operation of an internal combustion engine. A reference line indicating the correlation between a preselected water adsorption amount and NOx adsorption amount is then referenced to determine a reference value y0 of the NOx adsorption amount that corresponds to a measured value x1 of the water adsorption amount. Next, a measured value y1 of the NOx adsorption amount is compared against the reference value y0 to output a signal in which the result of the comparison is reflected.

摘要翻译： 本发明涉及一种具有NOx吸附剂的废气排放控制装置，并且能够判断NOx吸附剂的性能是否暂时或永久地劣化。 在内燃机的实际操作期间，测量NOx吸附剂吸附的NOx和水的量。 然后参考表示预选水吸附量与NOx吸附量之间的相关性的参考线，以确定对应于水吸附量的测量值x1的NOx吸附量的参考值y 0。 接下来，将NOx吸附量的测量值y1与参考值y0进行比较，以输出反映比较结果的信号。

公开(公告)号：US20100319327A1

公开(公告)日：2010-12-23

申请号：US12867282

申请日：2009-02-25

申请人： Keisuke Sano ,  Takaaki Itou ,  Kimikazu Yoda ,  Kazuhiro Wakao

发明人： Keisuke Sano ,  Takaaki Itou ,  Kimikazu Yoda ,  Kazuhiro Wakao

IPC分类号： F01N9/00 ,  F01N3/10

CPC分类号： B60W20/15 ,  B60K1/02 ,  B60K6/365 ,  B60K6/445 ,  B60L2240/441 ,  B60L2240/445 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W2510/0628 ,  B60W2510/0638 ,  B60W2510/0676 ,  B60W2520/10 ,  F01N3/0814 ,  F01N3/0878 ,  F02D41/123 ,  Y02T10/54 ,  Y02T10/6239 ,  Y02T10/6286

摘要： An exhaust gas purification device has: a bypass passage (20) disposed in an exhaust passage (15) of an internal combustion engine (10); an adsorbent (21) which is disposed in the bypass passage (20), and adsorbs unburned components in exhaust gas at a low temperature and desorbs the adsorbed unburned components at a high temperature; and an exhaust gas purification catalyst (22) which is disposed in the exhaust passage (15) at a downstream side of a portion where the bypass passage (20) merges, and purifies unburned components in exhaust gas; and a desorption amount adjustment (19) unit that adjusts the desorption amount of unburned components adsorbed by the adsorbent (21) based on an integrated fuel cut air amount (fgs), which is an integrated value of air amount taken into a combustion chamber of the internal combustion engine (10) during execution of fuel cut.

摘要翻译： 排气净化装置具有：设置在内燃机（10）的排气通路（15）内的旁通路（20）。 设置在旁通通路（20）内的吸附剂（21），在低温下吸附排气中的未燃烧成分，并在高温下解吸吸附的未燃烧成分; 和废气净化催化剂（22），其在所述旁通通路（20）合流的部分的下游侧设置在所述排气通路（15）中，并净化废气中的未燃烧成分; 和解吸量调整装置（19），其基于作为吸入到燃烧室的燃烧室中的空气量的积分值的综合燃料切断空气量（fgs）来调整吸附剂（21）吸附的未燃成分的解吸量， 内燃机（10）在执行燃料切断期间。

公开(公告)号：US20100101421A1

公开(公告)日：2010-04-29

申请号：US12531890

申请日：2008-03-26

申请人： Takaaki Kanazawa ,  Keisuke Sano ,  Kazuhiro Wakao ,  Kimikazu Yoda ,  Takaaki Itou

发明人： Takaaki Kanazawa ,  Keisuke Sano ,  Kazuhiro Wakao ,  Kimikazu Yoda ,  Takaaki Itou

IPC分类号： B01D53/28 ,  B01D53/56 ,  B01D53/02

CPC分类号： F01N3/0807 ,  B01D53/02 ,  B01D53/261 ,  B01D53/9481 ,  B01D2253/108 ,  B01D2255/20738 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2258/012 ,  B01J20/186 ,  F01N13/009 ,  F01N2570/14 ,  F01N2570/22 ,  Y02A50/2344 ,  Y02T10/20

摘要： A moisture adsorbing device 1 comprising a type Y zeolite, and an NOx adsorbing device 2 being put in place on an exhaust-gas downstream side of the moisture adsorbing device 1, and comprising a zeolite that includes a transition metal ion in the cation exchange sites are included. In NOx adsorbing apparatuses, since the less the moisture content in exhaust gases is the more the NOx adsorbing capability improves, the NO adsorbing capability in low-temperature region is improved especially by means of the combination with a moisture adsorbing device that comprises a type Y zeolite whose Al2O3 proportion is great and whose moisture adsorbing amount is great compared with the other zeolites.

摘要翻译： 包含Y型沸石的吸湿装置1和在吸湿装置1的排气下游侧配置的NOx吸附装置2，在阳离子交换部中含有过渡金属离子的沸石 包括在内。 在NOx吸附装置中，由于排气中的含水量越少，NOx吸附能力提高越多，所以特别是通过与含有Y型水分吸附装置的水分吸附装置的组合来提高低温区域的NO吸附能力 沸石的Al2O3比例大，吸水量大于其他沸石。

公开(公告)号：US20100199754A1

公开(公告)日：2010-08-12

申请号：US12670927

申请日：2009-04-14

申请人： Daisuke Shibata ,  Hiroshi Sawada ,  Taiga Hagimoto ,  Kazuhiro Wakao ,  Keisuke Sano ,  Kimikazu Yoda

发明人： Daisuke Shibata ,  Hiroshi Sawada ,  Taiga Hagimoto ,  Kazuhiro Wakao ,  Keisuke Sano ,  Kimikazu Yoda

IPC分类号： G01M15/10

CPC分类号： F01N11/002 ,  F01N3/2066 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  Y02T10/24 ,  Y02T10/47

摘要： In a malfunction diagnosis device for an exhaust gas purification system including an exhaust gas purification catalyst disposed in the exhaust passage of an internal combustion engine, and a reductant supply device that supplies reductant to exhaust gas that flows in an upstream side of the exhaust gas purification catalyst, the degree of degradation of the exhaust gas purification catalyst is diagnosed by comparing the timing at which the bed temperature of the exhaust gas purification catalyst starts to rise due to the heat of moisture adsorption reaction, against a normal value.

摘要翻译： 在一种排气净化系统的故障诊断装置中，该排气净化系统包括设置在内燃机的排气通路中的废气净化催化剂，以及还原剂供给装置，其向排气净化用上游侧的废气供给还原剂 通过将排气净化催化剂的床温度由于吸湿反应的热量开始上升的时间与正常值进行比较来诊断排气净化催化剂的劣化程度。

公开(公告)号：US20090133388A1

公开(公告)日：2009-05-28

申请号：US12292617

申请日：2008-11-21

申请人： Takashi Watanabe ,  Takaaki Ito ,  Keisuke Sano ,  Kimikazu Yoda ,  Kazuhiro Wakao ,  Atsushi Takara

发明人： Takashi Watanabe ,  Takaaki Ito ,  Keisuke Sano ,  Kimikazu Yoda ,  Kazuhiro Wakao ,  Atsushi Takara

IPC分类号： F01N9/00

CPC分类号： F01N3/2013 ,  F01N3/0807 ,  F01N3/2053 ,  F01N9/00 ,  F01N2410/00 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust gas purification apparatus which is installed in a flow channel of an exhaust gas discharged from an engine, includes: a first purification device that purifies one component contained in the gas; a heating device that heats the purification device to a predetermined temperature in a period from before the engine is started to a first point in time that is after the engine is started; control device that controls an air-fuel ratio of the gas so as to obtain a air-fuel ratio suitable for purifying the one component in a period from the time when the engine is started to a point in time that is on or after a time at which the purification device is heated to the predetermined temperature; and an adsorption device that communicates with the downstream of the first purification device and adsorbs another component contained in the gas.

摘要翻译： 一种安装在从发动机排出的废气的流路中的废气净化装置，包括：净化气体中所含的一个成分的第一净化装置; 在从发动机起动前到发动机起动后的第一时间点的期间，将净化装置加热到规定温度的加热装置; 控制装置，其控制所述气体的空燃比，从而在从所述发动机起动时起至所述时间之后的期间内获得适合于净化所述一个部件的空燃比。 将净化装置加热至预定温度; 以及与第一净化装置的下游连通并吸附气体中所含有的其他成分的吸附装置。

公开(公告)号：US08132450B2

公开(公告)日：2012-03-13

申请号：US12670927

申请日：2009-04-14

申请人： Daisuke Shibata ,  Hiroshi Sawada ,  Taiga Hagimoto ,  Kazuhiro Wakao ,  Keisuke Sano ,  Kimikazu Yoda

发明人： Daisuke Shibata ,  Hiroshi Sawada ,  Taiga Hagimoto ,  Kazuhiro Wakao ,  Keisuke Sano ,  Kimikazu Yoda

IPC分类号： G01M15/10

CPC分类号： F01N11/002 ,  F01N3/2066 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  Y02T10/24 ,  Y02T10/47

摘要： In a malfunction diagnosis device for an exhaust gas purification system including an exhaust gas purification catalyst disposed in the exhaust passage of an internal combustion engine, and a reductant supply device that supplies reductant to exhaust gas that flows in an upstream side of the exhaust gas purification catalyst, the degree of degradation of the exhaust gas purification catalyst is diagnosed by comparing the timing at which the bed temperature of the exhaust gas purification catalyst starts to rise due to the heat of moisture adsorption reaction, against a normal value.

摘要翻译： 在一种排气净化系统的故障诊断装置中，该排气净化系统包括设置在内燃机的排气通路中的废气净化催化剂，以及还原剂供给装置，其向排气净化用上游侧的废气供给还原剂 通过将排气净化催化剂的床温度由于吸湿反应的热量开始上升的时间与正常值进行比较来诊断排气净化催化剂的劣化程度。

公开(公告)号：US20100043410A1

公开(公告)日：2010-02-25

申请号：US12525092

申请日：2008-01-30

申请人： Kazuhiro Wakao ,  Takaaki Itou ,  Keisuke Sano

发明人： Kazuhiro Wakao ,  Takaaki Itou ,  Keisuke Sano

IPC分类号： F01N3/08

CPC分类号： F01N3/0878 ,  F01N3/0842 ,  F01N13/009 ,  F01N13/0097 ,  F01N2570/22 ,  F02M26/15

摘要： An object of the present invention, in an internal combustion engine equipped with a moisture adsorbent and a NOx adsorbent in series in order from the upstream side of an exhaust passage, is to provide an exhaust gas purifying apparatus for the internal combustion engine which can successfully prevent an adsorption capability of NOx from being inhibited by moisture and is capable of maintaining the NOx adsorption capability of the NOx adsorbent adequately. A main exhaust passage 14 through which exhaust gas exhausted from an internal combustion engine 10 flows is provided. A bypass passage 20 bypassing the main exhaust passage 14 is provided. A moisture adsorbent 24 and a NOx adsorbent 28 are provided in the bypass passage 20 in series in order from a side closer to the upstream connecting portion 20a. A switching valve 22 is controlled to prevent the exhaust gas from flowing into the NOx adsorbent 28 when it is judged that the desorption of the moisture from the moisture adsorbent 24 is started.

摘要翻译： 本发明的目的在于，在从排气通道的上游侧依次配置有吸湿剂和NOx吸附剂的内燃机中，为了能够成功地提供内燃机的废气净化装置 防止NO x的吸附能力被水分抑制，能够充分地维持NOx吸附剂的NOx吸附能力。 提供从内燃机10排出的排气流过的主排气通路14。 旁路通路20设置有旁通主排气通路14。 旁通通路20中的水分吸附剂24和NOx吸附剂28从靠近上游连接部20a的一侧依次串联设置。 控制切换阀22，以防止从水分吸附剂24开始对水分的解吸开始时废气流入NOx吸附剂28。

公开(公告)号：US20100132340A1

公开(公告)日：2010-06-03

申请号：US12530237

申请日：2008-03-10

申请人： Keisuke Sano ,  Takaaki Itou ,  Mimikazu Yoda ,  Kazuhiro Wakao

发明人： Keisuke Sano ,  Takaaki Itou ,  Mimikazu Yoda ,  Kazuhiro Wakao

IPC分类号： F01N3/00 ,  F01N3/10

CPC分类号： B01D53/9495 ,  B01D2251/208 ,  B01D2257/404 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/34 ,  F01N13/009 ,  F01N2410/00

摘要： An object of the present invention is to provide an exhaust gas purifying apparatus for an internal combustion engine which can properly purge at least NOx of unpurified components contained in exhaust gas while considering characteristics of NOx desorbed from an adsorbent. A bypass passage 18 bypassing a main exhaust passage 12 of the internal combustion engine 10 is provided. A HC/NOx adsorbent 22 having a function of adsorbing HC and NOx is provided in the bypass passage 18. A second underfloor catalyst 30 is provided downstream of the adsorbent 22. A purge passage 26 branching off from the bypass passage 18 while connecting to an intake passage is provided. An exhaust switching valve 20 and a purge control valve 28 are provided as a flow path switching means that is capable of switching a flow target into which the exhaust gas flows between the main exhaust passage 12 and the bypass passage 18. If the purging operations are executed, the intake purging operation is first executed. After that, the intake purging operation is switched to the exhaust purging operation at a timing existing after the purge of NOx is completed and at the time point at which the temperature of the adsorbent becomes stable.

摘要翻译： 本发明的目的是提供一种用于内燃机的废气净化装置，其能够考虑到从吸附剂脱附的NOx的特性，能够适当地净化废气中所含的未纯化成分的NOx。 设置有绕过内燃机10的主排气通路12的旁路通道18。 具有吸附HC和NOx的功能的HC / NOx吸附剂22设置在旁通通道18中。第二底板催化剂30设置在吸附剂22的下游。一个从旁路通道18分支的清洗通道26，同时连接到 提供进气通道。 设置排气切换阀20和排气控制阀28作为流路切换装置，其能够切换排气在主排气通路12和旁通通路18之间流动的流动目标。如果清洗操作是 首先执行进气清洗操作。 之后，在完成NOx的净化之后的时刻和吸附剂的温度稳定的时刻，进行排气操作切换到排气净化操作。