公开(公告)号：US08783023B2

公开(公告)日：2014-07-22

申请号：US13696972

申请日：2010-05-12

申请人： Shunsuke Toshioka ,  Shinya Hirota ,  Kazuhiro Itoh ,  Koichiro Fukuda ,  Akira Mikami

发明人： Shunsuke Toshioka ,  Shinya Hirota ,  Kazuhiro Itoh ,  Koichiro Fukuda ,  Akira Mikami

IPC分类号： F01N3/00 ,  F01N3/02 ,  F01N3/20

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2062 ,  F01N3/2033 ,  F01N13/009 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/0416 ,  F01N2900/1602 ,  Y02T10/24 ,  Y02T10/26

摘要： An object of the present invention is to increase the flexibility in the layout of an exhaust gas purification system for an internal combustion engine including selective catalytic reduction catalyst provided in an exhaust passage of the internal combustion engine and an addition device for supplying reducing agent derived from ammonia to the selective catalytic reduction catalyst, without a deterioration of the performance in reducing nitrogen oxides. To achieve the object, the exhaust gas purification system for an internal combustion engine according to the present invention is configured to supply hydrocarbon at the same time when reducing agent derived from ammonia is supplied to the selective catalytic reduction catalyst, thereby producing reducing agent that is hard to be oxidized by a precious metal catalyst.

摘要翻译： 本发明的目的在于提高内燃机的排气净化系统的布置灵活性，所述内燃机包括设置在内燃机的排气通路中的选择性催化还原催化剂，以及用于供给源自 氨至选择性催化还原催化剂，而不会降低还原氮氧化物的性能。 为了达到上述目的，本发明的内燃机用废气净化装置，在向选择性催化还原催化剂供给来自氨的还原剂的同时，同时供给烃，由此生成还原剂， 难以被贵金属催化剂氧化。

公开(公告)号：US20130055703A1

公开(公告)日：2013-03-07

申请号：US13696972

申请日：2010-05-12

申请人： Shunsuke Toshioka ,  Shinya Hirota ,  Kazuhiro Itoh ,  Koichiro Fukuda ,  Akira Mikami

发明人： Shunsuke Toshioka ,  Shinya Hirota ,  Kazuhiro Itoh ,  Koichiro Fukuda ,  Akira Mikami

IPC分类号： F01N3/10

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2062 ,  F01N3/2033 ,  F01N13/009 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/0416 ,  F01N2900/1602 ,  Y02T10/24 ,  Y02T10/26

摘要： An object of the present invention is to increase the flexibility in the layout of an exhaust gas purification system for an internal combustion engine including selective catalytic reduction catalyst provided in an exhaust passage of the internal combustion engine and an addition device for supplying reducing agent derived from ammonia to the selective catalytic reduction catalyst, without a deterioration of the performance in reducing nitrogen oxides. To achieve the object, the exhaust gas purification system for an internal combustion engine according to the present invention is configured to supply hydrocarbon at the same time when reducing agent derived from ammonia is supplied to the selective catalytic reduction catalyst, thereby producing reducing agent that is hard to be oxidized by a precious metal catalyst.

摘要翻译： 本发明的目的在于提高内燃机的排气净化系统的布置灵活性，所述内燃机包括设置在内燃机的排气通路中的选择性催化还原催化剂，以及用于供给源自 氨至选择性催化还原催化剂，而不会降低还原氮氧化物的性能。 为了达到上述目的，本发明的内燃机用废气净化装置，在向选择性催化还原催化剂供给来自氨的还原剂的同时，同时供给烃，由此生成还原剂， 难以被贵金属催化剂氧化。

公开(公告)号：US09206724B2

公开(公告)日：2015-12-08

申请号：US13640231

申请日：2010-04-08

申请人： Shinya Hirota ,  Akira Mikami ,  Shunsuke Toshioka ,  Kazuhiro Itoh ,  Koichiro Fukuda

发明人： Shinya Hirota ,  Akira Mikami ,  Shunsuke Toshioka ,  Kazuhiro Itoh ,  Koichiro Fukuda

IPC分类号： F01N3/10 ,  F01N3/18 ,  B01D53/94 ,  G05D23/00 ,  F01N3/20 ,  F01N3/36 ,  F01N3/38 ,  F01N9/00 ,  F01N3/025

CPC分类号： F01N3/2033 ,  F01N3/0256 ,  F01N3/36 ,  F01N3/38 ,  F01N9/00 ,  F01N2240/14 ,  F01N2340/02 ,  F01N2900/1411 ,  F01N2900/1602 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust gas purification system is equipped with a burner in an exhaust passage upstream of an exhaust gas purification apparatus and having a burner combustion chamber in which flame is produced. When the temperature of the exhaust gas purification apparatus is raised, the burner produces flame that extends from the interior of the burner combustion chamber to the interior of the exhaust passage when the flow rate of the exhaust gas is not higher than a predetermined flow rate, and the burner causes the size of the flame to be smaller than when it is determined that the flow rate of the exhaust gas is not higher than the predetermined flow rate or to produce flame only in the interior of the burner combustion chamber when it is determined that the flow rate of exhaust gas is higher than the predetermined flow rate.

摘要翻译： 废气净化系统在废气净化装置上游的排气通道中配备有燃烧器，并且具有在其中产生火焰的燃烧器燃烧室。 当废气净化装置的温度升高时，当排气的流量不高于预定的流量时，燃烧器产生从燃烧器燃烧室的内部延伸到排气通道的内部的火焰， 并且所述燃烧器导致所述火焰的尺寸小于当确定所述排气的流量不高于所述预定流量时，或者当确定所述燃烧器燃烧室的内部时仅产生火焰 废气的流量高于预定的流量。

公开(公告)号：US06588204B2

公开(公告)日：2003-07-08

申请号：US09979262

申请日：2001-11-21

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

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

IPC分类号： F01N300

CPC分类号： B01D46/24 ,  B01D46/0041 ,  B01D46/0067 ,  B01D46/448 ,  B01D53/9431 ,  B01D2279/30 ,  F01N3/021 ,  F01N3/0222 ,  F01N3/023 ,  F01N3/0233 ,  F01N3/0235 ,  F01N3/0253 ,  F01N3/031 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N2390/00 ,  F01N2410/00 ,  F01N2570/16 ,  F01N2610/03 ,  F02B23/06 ,  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 using a particulate filter arranged in the exhaust system. The trapped particulates are oxidized on the particulate filter, and the particulate filter has a trapping wall for trapping the particulates. The trapping wall has a first trapping surface and a second trapping surface. The device 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.

摘要翻译： 一种使用布置在排气系统中的微粒过滤器来净化内燃机的废气的装置。 被捕获的颗粒在颗粒过滤器上被氧化，并且颗粒过滤器具有用于捕集微粒的捕集壁。 捕集壁具有第一捕集表面和第二捕集表面。 该装置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。

公开(公告)号：US06786041B2

公开(公告)日：2004-09-07

申请号：US09958597

申请日：2001-10-11

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

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

IPC分类号： B01D4900

CPC分类号： F01N3/0842 ,  F01N3/021 ,  F01N3/023 ,  F01N3/035 ,  F01N3/0821 ,  F01N2570/16 ,  F02B37/00 ,  F02D41/029 ,  F02D41/1467 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/23

摘要： A particulate filter (22) is arranged in an exhaust passage of an engine. When an amount of discharged particulate discharged from a combustion chamber (5) per unit time exceeds an amount of particulate removable by oxidation which can be removed by oxidation on the particulate filter (22) per unit time without emitting a luminous flame, at least one of the amount of discharged particulate and the amount of particulate removable by oxidation is controlled so that the amount of discharged particulate becomes smaller than the amount of particulate removable by oxidation, whereby the particulate in the exhaust gas can be continuously removed by oxidation on the particulate filter (22) without emitting a luminous flame.

摘要翻译： 微粒过滤器（22）布置在发动机的排气通道中。 当每单位时间从燃烧室（5）排出的排出颗粒的量超过可以通过氧化除去的颗粒的量，其可以在每单位时间内在颗粒过滤器（22）上被氧化除去而不发出发光的火焰，至少一个 排出的颗粒的量和通过氧化除去的颗粒的量被控制，使得排出的颗粒的量变得小于通过氧化可除去的颗粒的量，由此废气中的颗粒可以通过颗粒上的氧化被连续地除去 过滤器（22），而不发出发光的火焰。

公开(公告)号：US06769245B2

公开(公告)日：2004-08-03

申请号：US09958575

申请日：2001-10-11

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

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

IPC分类号： F01N300

CPC分类号： F01N3/0842 ,  F01N3/021 ,  F01N3/023 ,  F01N3/035 ,  F01N3/0821 ,  F01N2570/16 ,  F02B37/00 ,  F02D41/029 ,  F02D41/1467 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/23

摘要： A particulate filter (22) carrying an active oxygen release agent which takes in oxygen and holds oxygen when excess oxygen is present in the surroundings and releases the held oxygen in the form of active oxygen when the concentration of oxygen in the surroundings falls is arranged in an exhaust passage of an engine. The air-fuel ratio of the exhaust gas flowing into the particulate filter (22) is normally maintained lean and is occasionally switched to rich temporarily. When the air-fuel ratio of the exhaust gas is switched to rich, an oxidation reaction of the particulate on the particulate filter is promoted by the active oxygen released from the active oxygen release agent. Due to this, the particulate in the exhaust gas is continuously removed by oxidation on the particulate filter (22) without emitting a luminous flame.

摘要翻译： 一种带有活性氧释放剂的微粒过滤器（22），其在周围存在过量的氧气时吸氧并保持氧气，并且当环境中的氧浓度下降时，以活性氧的形式释放保持的氧气 发动机的排气通道。 流入微粒过滤器（22）的废气的空燃比通常保持稀薄，有时候暂时转为浓。 当排气的空燃比变为浓时，由活性氧释放剂释放的活性氧促进颗粒过滤器上的颗粒的氧化反应。 由此，废气中的颗粒通过在颗粒过滤器（22）上的氧化而不发生发光的火焰而被连续除去。

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：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：US08225596B2

公开(公告)日：2012-07-24

申请号：US12450276

申请日：2008-03-04

申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Kazuhiro Itoh

发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Kazuhiro Itoh

IPC分类号： F01N3/00

CPC分类号： F01N3/2066 ,  F01N3/0835 ,  F01N9/00 ,  F01N13/009 ,  F01N2570/00 ,  F01N2570/12 ,  Y02T10/24 ,  Y02T10/47

摘要： In an internal combustion engine, a urea adsorption type selective reduction catalyst is arranged in an engine exhaust passage. By feeding urea from a urea feed valve into the exhaust gas flowing into this selective reduction catalyst, the NOx included in the exhaust gas is reduced in the selective reduction catalyst. TO suppress the generation of hydrogen cyanide, an HC adsorption catalyst for adsorption of the HC in the exhaust gas is arranged in the engine exhaust passage upstream of the selective reduction catalyst.

摘要翻译： 在内燃机中，尿素吸附式选择还原催化剂配置在发动机排气通路内。 通过将尿素从尿素进料阀送入流入该选择还原催化剂的废气中，选择还原催化剂中的排气中包含的NOx降低。 为了抑制氰化氢的产生，在选择还原催化剂上游的发动机排气通道中配置有用于吸附废气中的HC的HC吸附催化剂。

公开(公告)号：US20100111774A1

公开(公告)日：2010-05-06

申请号：US12450604

申请日：2008-04-07

申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Kazuhiro Itoh

发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Kazuhiro Itoh

IPC分类号： B01D53/86 ,  B01D50/00 ,  B01D53/56

CPC分类号： F01N3/208 ,  B01D53/9409 ,  B01D53/944 ,  B01D53/9477 ,  B01D53/9495 ,  B01D53/96 ,  B01D2251/2067 ,  B01D2258/012 ,  F01N3/023 ,  F01N3/0231 ,  F01N3/0253 ,  F01N3/033 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/06 ,  F01N2570/10 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

摘要： An object of the present invention is to suppress, in a system in which an NOx selective catalytic reduction catalyst and a particulate filter are provided in an exhaust passage of an internal combustion engine, discharge of ammonia from the NOx selective catalytic reduction catalyst. In the exhaust gas purification system for an internal combustion engine according to the present invention, when a condition for executing a filter temperature raising control is satisfied, the supply of urea to the NOx selective catalytic reduction catalyst by urea supply means is stopped, and the filter temperature raising control is executed by filter temperature raising means after a specific time has elapsed since the time of stoppage of the supply of urea to the NOx selective catalytic reduction catalyst.

摘要翻译： 本发明的目的在于，在内燃机的排气通路中设置NOx选择催化还原催化剂和微粒过滤器的系统中，从NOx选择催化还原催化剂排出氨。 在本发明的内燃机废气净化系统中，当满足进行过滤器升温控制的条件时，停止通过尿素供给机构向NOx选择催化还原催化剂的尿素供给， 过滤器升温控制在从尿素供应停止到NOx选择催化还原催化剂的时间经过一定时间之后由过滤器升温装置执行。