公开(公告)号：US06681566B2

公开(公告)日：2004-01-27

申请号：US10455383

申请日：2003-06-06

申请人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Koichi Kimura ,  Koichiro Nakatani

发明人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Koichi Kimura ,  Koichiro Nakatani

IPC分类号： F01N300

CPC分类号： B01D46/0067 ,  B01D46/0036 ,  B01D46/0039 ,  B01D46/0041 ,  B01D46/24 ,  B01D46/2418 ,  B01D46/46 ,  B01D53/9431 ,  B01D2046/2492 ,  F01N3/021 ,  F01N3/0222 ,  F01N3/023 ,  F01N3/0233 ,  F01N3/0235 ,  F01N3/0253 ,  F01N3/031 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N2410/00 ,  F01N2570/16 ,  F01N2610/03 ,  F02B23/06 ,  F02B23/0621 ,  F02B23/0669 ,  F02B23/0672 ,  F02B37/00 ,  F02F2001/247 ,  F02M26/05 ,  F02M26/10 ,  F02M26/23 ,  F02M26/26 ,  F02M26/28 ,  F02M26/33 ,  Y02T10/125

摘要： An exhaust purifying method and apparatus of an internal combustion engine are provided with an exhaust switch valve for switching a flow of exhaust gas flowing into an exhaust filter. By switching the exhaust switch valve, the exhaust gas is fed from one side and the other side of the filter, thereby stirring the soot (particulates) in the exhaust gas deposited on the filter having a NOx absorbent and an active-oxygen discharging agent supported thereon. Thus, the soot in the exhaust gas is continuously burned. Moreover, the switching of the exhaust switch valve and the rich spike are inhibited from being conducted simultaneously. In the case where the rich spike is conducted in order to discharge and reduce NOx absorbed in the NOx absorbent, the exhaust gas containing a large amount of HC and CO can be prevented from being discharged into the atmosphere without being purified.

摘要翻译： 内燃机的排气净化方法和装置设置有用于切换流入排气过滤器的废气流的排气切换阀。 通过切换排气开关阀，排气从过滤器的一侧和另一侧进料，从而搅拌沉积在具有NOx吸收剂的过滤器上的废气中的烟灰（微粒）和负载的活性氧排放剂 上。 因此，排气中的烟灰不断燃烧。 此外，排气开关阀和丰富尖峰的切换被抑制同时进行。 为了排出和减少吸收在NOx吸收剂中的NOx而进行浓穗的处理，可以防止含有大量HC，CO的废气排出到大气中而不被净化。

公开(公告)号：US06655133B2

公开(公告)日：2003-12-02

申请号：US10106239

申请日：2002-03-27

申请人： Akira Mikami ,  Shinya Hirota ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura ,  Shunsuke Toshioka ,  Koichiro Nakatani ,  Toshiaki Tanaka ,  Masato Gotoh ,  Takekazu Ito

发明人： Akira Mikami ,  Shinya Hirota ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura ,  Shunsuke Toshioka ,  Koichiro Nakatani ,  Toshiaki Tanaka ,  Masato Gotoh ,  Takekazu Ito

IPC分类号： F01N300

CPC分类号： F01N3/2046 ,  F01N3/023 ,  F01N3/0233 ,  F01N3/031 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/2006 ,  F01N3/2828 ,  F01N9/002 ,  F01N13/0097 ,  F01N2250/02 ,  F01N2330/06 ,  F01N2510/065 ,  F01N2570/16 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust gas purifier includes a particulate filter for oxidizing collected particulates, a reversing device that reverses an exhaust gas upstream side and an exhaust gas downstream side of the particulate filter. The particulate filter includes a collecting wall for collecting the particulates, which includes a first collecting surface and a second collecting surface. The first and the second collecting surfaces are alternately used for collecting the particulates by the reversing device. The catalyst device is arranged adjacent to the particulate filter at a position always being at the downstream side of the particulate filter.

公开(公告)号：US06644023B2

公开(公告)日：2003-11-11

申请号：US10088477

申请日：2002-03-20

申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichiro Nakatani ,  Koichi Kimura

发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichiro Nakatani ,  Koichi Kimura

IPC分类号： F01N300

CPC分类号： B01D46/2418 ,  B01D46/002 ,  B01D46/0063 ,  B01D46/0067 ,  B01D2046/2492 ,  F01N3/021 ,  F01N3/0211 ,  F01N3/0222 ,  F01N3/0233 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0842 ,  F01N13/017 ,  F01N2510/065 ,  F02D41/029

摘要： The present device for purifying the exhaust gas of an internal combustion engine comprises a particulate filter 70 on which the trapped particulates are oxidized and reversing means 74 for reversing the exhaust gas upstream side and the exhaust gas downstream side of the particulate filter. The particulate filter has a trapping wall for trapping the particulates. The reversing means reverses the exhaust gas upstream side and the exhaust gas downstream side of the particulate filter so that the first trapping surface and the second trapping surface are used alternately to trap the particulates. The particulate filter has a first opening portion and a second opening portion through which the exhaust gas flows in and out from the particulate filter and is arranged in the exhaust pipe 71 upstream of the muffler. At least part of the circumferential portion of the particulate filter between the first opening portion and the second opening portion is in contact with the flow of the exhaust gas in the exhaust pipe.

公开(公告)号：US06568178B2

公开(公告)日：2003-05-27

申请号：US09817187

申请日：2001-03-27

申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Koichiro Nakatani ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura

发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Koichiro Nakatani ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura

IPC分类号： F01N300

CPC分类号： F01N3/035 ,  B01D53/9431 ,  F01N3/023 ,  F01N3/0233 ,  F01N3/0235 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0821 ,  F01N2570/16 ,  F01N2610/03 ,  F02B23/0621 ,  F02B23/0669 ,  F02B23/0672 ,  F02F2001/247 ,  F02M26/05 ,  F02M26/10 ,  F02M26/23 ,  F02M26/28 ,  F02M26/33 ,  Y02T10/125

摘要： A device for purifying the exhaust gas of an internal combustion engine is disclosed. The device has a particulate filter arranged in the exhaust system on which the trapped particulates are oxidized, and a reversing mechanism for reversing the exhaust gas upstream side and the exhaust gas downstream side of the particulate filter. The particulate filter has a trapping wall. The trapping wall has a first trapping surface and a second trapping surface. The reversing mechanism reverses the exhaust gas upstream side and the exhaust gas downstream side of the particulate filter so that the first trapping surface and the second trapping surface are used alternately to trap the particulates. The device can improve the amount of particulates that can be oxidized and removed on the particulate filter.

摘要翻译： 公开了一种用于净化内燃机的废气的装置。 该装置具有布置在被捕获的微粒被氧化的排气系统中的微粒过滤器和用于使微粒过滤器的废气上游侧和废气下游侧反向的反转机构。 微粒过滤器具有捕集壁。 捕集壁具有第一捕集表面和第二捕集表面。 反转机构使微粒过滤器的废气上游侧和排气下游侧反转，使得交替地使用第一捕集面和第二捕集面捕获微粒。 该装置可以改善可以在微粒过滤器上被氧化和去除的微粒的量。

公开(公告)号：US07153336B2

公开(公告)日：2006-12-26

申请号：US10485661

申请日：2002-08-07

申请人： Kazuhiro Itoh ,  Shinya Hirota ,  Koichiro Nakatani

发明人： Kazuhiro Itoh ,  Shinya Hirota ,  Koichiro Nakatani

IPC分类号： B01D46/00 ,  F01N3/022

CPC分类号： F01N3/0821 ,  B01D46/0063 ,  B01D46/2425 ,  B01D46/2429 ,  B01D46/244 ,  B01D46/2451 ,  B01D46/2459 ,  B01D46/2474 ,  B01D2046/2437 ,  B01D2046/2492 ,  B01D2046/2496 ,  B01D2279/30 ,  B28B3/269 ,  B28B11/006 ,  F01N3/0222 ,  F01N3/0842 ,  F01N3/085 ,  F01N2240/20 ,  F01N2260/18 ,  F01N2510/0682 ,  F01N2570/16 ,  Y10S55/05 ,  Y10S55/10 ,  Y10S55/30

摘要： This invention relates to an exhaust gas purifying apparatus having a particulate filter for collecting particulates in exhaust gas. This particulate filter (22) contains partition walls defining paths (50, 51) in which exhaust gas flows. This partition wall is formed of porous material. This particulate filter (22) is created by gathering tips of the partition walls and then baking with the adjacent partition walls being in contact with each other. The adjacent partition walls are bonded together at a predetermined bonding strength if the partition walls are baked such that they are in contact. According to this invention, the end portion of the particulate filter (22) has a higher strength than the predetermined bonding strength.

摘要翻译： 废气净化装置技术领域本发明涉及具有用于收集废气中的微粒的微粒过滤器的废气净化装置。 该颗粒过滤器（22）包含限定了废气流动的路径（50,51）的分隔壁。 该分隔壁由多孔材料形成。 这种微粒过滤器（22）是通过聚集分隔壁的尖端，然后与彼此接触的相邻分隔壁进行烘烤而产生的。 如果分隔壁被烘烤以使它们接触，则相邻的隔壁以预定的粘接强度粘合在一起。 根据本发明，微粒过滤器（22）的端部具有比预定的接合强度更高的强度。

公开(公告)号：US07059113B2

公开(公告)日：2006-06-13

申请号：US10866710

申请日：2004-06-15

申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichiro Nakatani ,  Koichi Kimura

发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichiro Nakatani ,  Koichi Kimura

IPC分类号： F01N3/00

CPC分类号： F02D41/0055 ,  B01D53/9495 ,  F01N3/0222 ,  F01N3/023 ,  F01N3/0231 ,  F01N3/0233 ,  F01N3/031 ,  F01N3/032 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0885 ,  F01N9/002 ,  F01N11/00 ,  F01N2250/14 ,  F01N2550/04 ,  F01N2570/04 ,  F01N2570/16 ,  F01N2900/0422 ,  F02B37/00 ,  F02D41/0002 ,  F02D41/0047 ,  F02D41/005 ,  F02D41/0057 ,  F02D41/0235 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/028 ,  F02D41/029 ,  F02D41/1462 ,  F02D41/187 ,  F02D41/3809 ,  F02D2011/102 ,  F02D2041/0017 ,  F02D2041/389 ,  F02D2200/0804 ,  F02D2200/0806 ,  F02D2200/0808 ,  F02D2200/0818 ,  F02D2200/602 ,  F02D2250/38 ,  F02M26/05 ,  F02M26/10 ,  F02M26/28 ,  F02M26/47 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/47

摘要： An exhaust gas purification apparatus for an engine having a combustion chamber includes a device that prevents overheating of a particulate filter. The apparatus includes an exhaust passage, a particulate filter arranged in the exhaust passage for removing particulate in exhaust gas exhausted from the combustion chamber by oxidation, and a device for controlling the characteristics of the exhaust gas flowing into the particulate filter. A judgment is made whether the particulate filter will be deteriorated by heat. If yes, the controlling device changes the characteristics of the exhaust gas flowing into the particulate filter to prevent the particulate filter from being deteriorated by heat.

摘要翻译： 具有燃烧室的发动机的废气净化装置包括防止微粒过滤器过热的装置。 该装置包括排气通道，布置在排气通道中的颗粒过滤器，用于通过氧化除去从燃烧室排出的排气中的颗粒;以及用于控制流入颗粒过滤器的废气特性的装置。 判断颗粒过滤器是否会被热损坏。 如果是，则控制装置改变流入微粒过滤器的废气的特性，防止微粒过滤器受热而劣化。

公开(公告)号：US06874315B2

公开(公告)日：2005-04-05

申请号：US09979643

申请日：2001-11-26

申请人： Koichiro Nakatani ,  Shinya Hirota ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura ,  Kiyoshi Nakanishi ,  Toshiaki Tanaka

发明人： Koichiro Nakatani ,  Shinya Hirota ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura ,  Kiyoshi Nakanishi ,  Toshiaki Tanaka

IPC分类号： B01D46/00 ,  B01D46/24 ,  B01D53/94 ,  F01N3/021 ,  F01N3/022 ,  F01N3/023 ,  F01N3/025 ,  F01N3/027 ,  F01N3/029 ,  F01N3/031 ,  F01N3/035 ,  F01N3/05 ,  F01N3/08 ,  F01N3/20 ,  F01N13/04 ,  F02B23/06 ,  F02B37/00 ,  F02F1/24 ,  F02M25/07 ,  F01N3/00

CPC分类号： B01D46/0036 ,  B01D46/2418 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/021 ,  F01N3/0214 ,  F01N3/0222 ,  F01N3/023 ,  F01N3/0233 ,  F01N3/0235 ,  F01N3/0253 ,  F01N3/031 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N13/011 ,  F01N2410/00 ,  F01N2570/16 ,  F01N2610/03 ,  F02B23/0669 ,  F02B37/00 ,  F02D41/0057 ,  F02F2001/247 ,  F02M26/05 ,  F02M26/10 ,  F02M26/28 ,  F02M26/33

摘要： A particulate filter (22) for removing particulates included in an exhaust gas discharged from a combustion chamber (5) is arranged in an engine exhaust passage. The particulate filter has wall partitions (54) which the exhaust gas can pass through. The particulates included in the exhaust gas are removed by oxidation in the interior of the partitions. The particulates are fluidized in the interior of the partitions.

摘要翻译： 用于除去从燃烧室（5）排出的废气中所含的微粒的微粒过滤器（22）配置在发动机排气通路内。 颗粒过滤器具有排气可以通过的壁分隔壁（54）。 包含在废气中的颗粒在隔板的内部被氧化除去。 颗粒在隔板的内部流化。

公开(公告)号：US06823665B2

公开(公告)日：2004-11-30

申请号：US10088476

申请日：2002-03-20

申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichiro Nakatani ,  Koichi Kimura

发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichiro Nakatani ,  Koichi Kimura

IPC分类号： F01N300

CPC分类号： F02D41/0055 ,  B01D53/9495 ,  F01N3/0222 ,  F01N3/023 ,  F01N3/0231 ,  F01N3/0233 ,  F01N3/031 ,  F01N3/032 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0885 ,  F01N9/002 ,  F01N11/00 ,  F01N2250/14 ,  F01N2550/04 ,  F01N2570/04 ,  F01N2570/16 ,  F01N2900/0422 ,  F02B37/00 ,  F02D41/0002 ,  F02D41/0047 ,  F02D41/005 ,  F02D41/0057 ,  F02D41/0235 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/028 ,  F02D41/029 ,  F02D41/1462 ,  F02D41/187 ,  F02D41/3809 ,  F02D2011/102 ,  F02D2041/0017 ,  F02D2041/389 ,  F02D2200/0804 ,  F02D2200/0806 ,  F02D2200/0808 ,  F02D2200/0818 ,  F02D2200/602 ,  F02D2250/38 ,  F02M26/05 ,  F02M26/10 ,  F02M26/28 ,  F02M26/47 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/47

摘要： An exhaust gas purification apparatus, for an engine having a combustion chamber, comprising an exhaust passage, a particulate filter arranged in the exhaust passage for removing particulate in exhaust gas exhausted from the combustion chamber by oxidation, and a device for controlling the characteristics of the exhaust gas flowing into the particulate filter, wherein, when the judging means judges that the particulate filter will be deteriorated by heat, the controlling device changes the characteristics of the exhaust gas flowing into the particulate filter to prevent the particulate filter from being deteriorated by heat.

公开(公告)号：US06725651B2

公开(公告)日：2004-04-27

申请号：US09987191

申请日：2001-11-13

申请人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Shinya Hirota ,  Koichiro Nakatani ,  Shigeki Daido ,  Naohisa Oyama

发明人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Shinya Hirota ,  Koichiro Nakatani ,  Shigeki Daido ,  Naohisa Oyama

IPC分类号： F01N300

CPC分类号： F01N3/36 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0093 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/12 ,  F01N2610/1453 ,  Y02T10/24

摘要： A reducing agent for use in an internal combustion engine is a mixture of an ammonia-derived solid reducing material and a water-insoluble liquid in which the solid reducing agent is immersed. A reducing-agent supply device is provided for supplying a denitration catalyst with the reducing agent, such that the reducing agent is introduced into a portion of an exhaust passage of the internal combustion engine which is upstream of the denitration catalyst.

摘要翻译： 用于内燃机的还原剂是氨衍生的固体还原材料和固体还原剂浸渍的水不溶性液体的混合物。 提供了还原剂供给装置，用于向脱硝催化剂供给还原剂，使得还原剂被引入在脱硝催化剂上游的内燃机的排气通道的一部分中。

公开(公告)号：US07141088B2

公开(公告)日：2006-11-28

申请号：US10485574

申请日：2000-08-07

申请人： Koichiro Nakatani ,  Shinya Hirota

发明人： Koichiro Nakatani ,  Shinya Hirota

IPC分类号： B01D46/00

CPC分类号： F01N3/0842 ,  B01J35/04 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/0821 ,  F01N2240/20 ,  F01N2330/06 ,  F01N2330/30 ,  Y10S55/10 ,  Y10S55/30

摘要： A particulate filter (22) for collecting particulates in the exhaust gas is comprised. The particulate filter (22) includes partitioning walls (54) for forming passages (50, 51). The partitioning walls (54) are made of a porous material. The end portions of adjacent partitioning walls (54) are brought close each other so as to narrow the respective passage formed by the partitioning walls (54), and the cross-sectional area of the flow path at the end region of the passage is made to be smaller than the cross-sectional area of the flow path in the remaining regions of the passage. The particulate filter (22) has an extended portion (55) which extends beyond the top ends of the partitioning walls (54) from the end surface of the particulate filter (22).

摘要翻译： 包括用于收集废气中的微粒的微粒过滤器（22）。 颗粒过滤器（22）包括用于形成通道（50,51）的分隔壁（54）。 分隔壁（54）由多孔材料制成。 相邻分隔壁（54）的端部彼此靠近以使由分隔壁（54）形成的相应通道变窄，并且使通道端部区域处的流路的横截面面积 小于通道的剩余区域中的流路的横截面面积。 微粒过滤器（22）具有从微粒过滤器（22）的端面延伸超过分隔壁（54）的顶端的延伸部分（55）。