公开(公告)号：US08516801B2

公开(公告)日：2013-08-27

申请号：US12530237

申请日：2008-03-10

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： F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  B01D53/94

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。

公开(公告)号：US08257471B2

公开(公告)日：2012-09-04

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

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，能够提高低温区域的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：US20100307141A1

公开(公告)日：2010-12-09

申请号：US12739539

申请日：2008-09-30

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

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

IPC分类号： F01N9/00

CPC分类号： F01N3/0878 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/101 ,  F01N13/009 ,  F01N2240/18 ,  F01N2560/06 ,  F01N2570/22 ,  Y02T10/22

摘要： A moisture adsorbent (32) for adsorbing moisture in exhaust gas and an NOx adsorbent (34) for adsorbing NOx are disposed in a bypass passage (30) for bypassing an exhaust passage (16) of an internal combustion engine (10). When an adsorption operation to the NOx adsorbent (34) is executed, inflow of the exhaust gas to the bypass passage (30) is allowed until the moisture amount that flows into the water adsorbent (32) reaches an allowable moisture inflow amount. The allowable moisture inflow amount is determined based on a residual moisture amount before the starting of the adsorption operation in the moisture adsorbent (32). The residual moisture amount in the water adsorbent (32) can be determined based on the temperature of the moisture adsorbent (32) at the immediately preceding execution of the purge operation.

摘要翻译： 用于吸附废气中的水分的吸湿剂（32）和用于吸附NOx的NOx吸附剂（34）设置在用于绕过内燃机（10）的排气通道（16）的旁路通道（30）中。 当执行对NOx吸附剂（34）的吸附操作时，允许废气流入旁通通道（30），直到流入水吸附剂（32）的水分量达到允许的水分流入量。 基于水分吸附剂（32）中的吸附动作开始前的残留水分量来确定容许水分流入量。 水吸附剂（32）中的残留水分量可以基于在先前执行清洗操作时的水分吸附剂（32）的温度来确定。

公开(公告)号：US20100205939A1

公开(公告)日：2010-08-19

申请号：US12599537

申请日：2008-04-28

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： F01N11/00 ,  F01N9/00 ,  F01N3/10 ,  F02D41/00

CPC分类号： F01N11/007 ,  F01N3/0238 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/0864 ,  F01N3/0878 ,  F01N3/0885 ,  F01N3/2013 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2290/06 ,  F01N2560/025 ,  F02D41/0275 ,  F02D41/065 ,  F02D41/1439 ,  F02D41/1454 ,  Y02T10/26 ,  Y02T10/47

摘要： A main exhaust passage 42 and a first bypass passage 46 bypassing the main exhaust passage 42 are provided. An absorbent 52 having a function of absorbing HC components and NOx components contained in exhaust gas is provided in the first bypass passage 46. An underfloor catalyst 56 including a catalyst with an electric heater (EHC) 58 is provided in a main exhaust passage 42 on a downstream side of a downstream connecting portion 48b in a first bypass passage 46. A second bypass passage 62 that provides communication between the main exhaust passage 42 downstream of the underfloor catalyst 56 and the first bypass passage 46 upstream of the absorbent 52 is provided. A first exhaust switching valve 50 is provided in an upstream connecting portion 48a, and a second exhaust switching valve 68 is provided in a main exhaust passage side connecting portion 64a. A pump 66 is provided in the middle of the second bypass passage 62.

摘要翻译： 主排气通道42和旁通主排气通道42的第一旁通通道46设置。 具有吸收废气中的HC成分和NOx成分的功能的吸收剂52设置在第一旁路通路46中。具有电加热器（EHC）58的催化剂的地板下催化剂56设置在主排气通路42中， 在第一旁路通路46中的下游连接部分48b的下游侧。提供了在底板催化剂56下游的主排气通道42和吸收剂52上游的第一旁通通道46之间提供连通的第二旁通通道62。 第一排气切换阀50设置在上游连接部48a中，第二排气切换阀68设置在主排气通路侧连接部64a中。 泵66设置在第二旁通通道62的中间。

公开(公告)号：US20100115919A1

公开(公告)日：2010-05-13

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 ,  F01N9/00

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：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：US08327622B2

公开(公告)日：2012-12-11

申请号：US12594987

申请日：2008-03-11

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： F01N3/00 ,  F01N3/10 ,  F01N3/02

CPC分类号： B01D53/9481 ,  B01D53/0462 ,  B01D2255/91 ,  B01D2255/912 ,  B01D2257/702 ,  F01N3/0807 ,  F01N3/2013 ,  F01N3/32 ,  F01N9/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/16 ,  F01N2240/36 ,  F01N2410/04 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust gas purifying apparatus for an internal combustion engine is provided to desorb predetermined components contained in exhaust gas from an adsorption device for adsorbing the components and to purify the desorbed components, even during the stop of the internal combustion engine. A main exhaust passage and a bypass passage bypassing the main exhaust passage are provided. An exhaust switching valve is capable of switching a flow target into the exhaust gas flows between the main exhaust passage and the bypass passage. An adsorbent for adsorbing the predetermined components is provided in the bypass passage. An underfloor catalyst including a catalyst with a heater is provided at a downstream side of the bypass passage in the main exhaust passage. A pump and a heater are provided in an air supply passage which branches from the bypass passage at an upstream portion of the adsorbent.

摘要翻译： 提供一种内燃机的废气净化装置，即使在内燃机的停止期间，也可以从吸附装置的吸附装置排出含有的废气中的预定成分，从而吸附成分，并净化解吸附的成分。 设置有主排气通路和旁通主旁通通路。 排气切换阀能够将流动目标切换到主排气通路和旁通通路之间的废气流中。 用于吸附预定组分的吸附剂设置在旁路通道中。 在主排气通路的旁路通路的下游侧设置有具有加热器的催化剂的地板下催化剂。 在吸附剂的上游部分从旁路通路分支的供气通道中设置有泵和加热器。

公开(公告)号：US08261534B2

公开(公告)日：2012-09-11

申请号：US12599537

申请日：2008-04-28

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： F01N11/00 ,  F01N3/10 ,  F01N9/00 ,  F02D41/00

CPC分类号： F01N11/007 ,  F01N3/0238 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/0864 ,  F01N3/0878 ,  F01N3/0885 ,  F01N3/2013 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2290/06 ,  F01N2560/025 ,  F02D41/0275 ,  F02D41/065 ,  F02D41/1439 ,  F02D41/1454 ,  Y02T10/26 ,  Y02T10/47

摘要： A main exhaust passage 42 and a first bypass passage 46 bypassing the main exhaust passage 42 are provided. An absorbent 52 having a function of absorbing HC components and NOx components contained in exhaust gas is provided in the first bypass passage 46. An underfloor catalyst 56 including a catalyst with an electric heater (EHC) 58 is provided in a main exhaust passage 42 on a downstream side of a downstream connecting portion 48b in a first bypass passage 46. A second bypass passage 62 that provides communication between the main exhaust passage 42 downstream of the underfloor catalyst 56 and the first bypass passage 46 upstream of the absorbent 52 is provided. A first exhaust switching valve 50 is provided in an upstream connecting portion 48a, and a second exhaust switching valve 68 is provided in a main exhaust passage side connecting portion 64a. A pump 66 is provided in the middle of the second bypass passage 62.

摘要翻译： 主排气通道42和旁通主排气通道42的第一旁通通道46设置。 具有吸收废气中的HC成分和NOx成分的功能的吸收剂52设置在第一旁路通路46中。具有电加热器（EHC）58的催化剂的地板下催化剂56设置在主排气通路42中， 在第一旁路通路46中的下游连接部分48b的下游侧。提供了在底板催化剂56下游的主排气通道42和吸收剂52上游的第一旁通通道46之间提供连通的第二旁通通道62。 第一排气切换阀50设置在上游连接部48a中，第二排气切换阀68设置在主排气通路侧连接部64a中。 泵66设置在第二旁通通道62的中间。

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：US20050056103A1

公开(公告)日：2005-03-17

申请号：US10913668

申请日：2004-08-06

申请人： Hitoshi Hirai ,  Hideki Ohashi ,  Toshio Mizutaka ,  Kimikazu Yoda ,  Kenichi Uchida ,  Hiroaki Katumata

发明人： Hitoshi Hirai ,  Hideki Ohashi ,  Toshio Mizutaka ,  Kimikazu Yoda ,  Kenichi Uchida ,  Hiroaki Katumata

IPC分类号： G01N1/22 ,  G01N1/24

CPC分类号： G01N1/2252 ,  G01N2001/2264

摘要： A gas sampling bag is capable of blowing out the gas uniformly into the bag main body, and filling the bag main body with gas in a securely mixed state. A gas sampling bag that is connected to a constant volume sampling passage, contains a pipe, on which a plurality of gas inlet/outlet holes are formed, in a bag main body, and allows the gas to flow into/out of the bag main body through the gas inlet/outlet holes. The opening of the plurality of gas inlet/outlet holes is formed in such a manner that the size is minimized while the pressure loss is suppressed so as not to increase as far as possible.

摘要翻译： 气体取样袋能够将气体均匀地吹出到袋主体中，并且以可靠的混合状态用气体填充袋主体。 连接到恒定体积采样通道的气体取样袋在袋主体中容纳有形成有多个气体入口/出口孔的管道，并且允许气体流入/流出袋主体 身体通过气体入口/出口孔。 多个气体入口/出口孔的开口形成为尽可能减小压力损失的尺寸，尽可能不增加。