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：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：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：US07296401B2

公开(公告)日：2007-11-20

申请号：US10829160

申请日：2004-04-22

申请人： Takamitsu Asanuma ,  Toshiaki Tanaka ,  Shinya Hirota ,  Kazuhiro Itoh ,  Koichiro Nakatani ,  Koichi Kimura ,  Kotaro Hayashi ,  Souichi Matushita ,  Yukihiro Tsukasaki

发明人： Takamitsu Asanuma ,  Toshiaki Tanaka ,  Shinya Hirota ,  Kazuhiro Itoh ,  Koichiro Nakatani ,  Koichi Kimura ,  Kotaro Hayashi ,  Souichi Matushita ,  Yukihiro Tsukasaki

IPC分类号： F01N3/00

CPC分类号： F02D41/403 ,  F01N3/023 ,  F01N3/0231 ,  F01N3/0233 ,  F01N3/031 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0878 ,  F01N13/009 ,  F01N2330/06 ,  F01N2570/04 ,  F01N2570/16 ,  F02B3/06 ,  F02B23/06 ,  F02B23/0669 ,  F02B23/0672 ,  F02D21/08 ,  F02D41/0057 ,  F02D41/0275 ,  F02D41/028 ,  F02D41/029 ,  F02D41/402 ,  F02D2011/102 ,  F02D2041/389 ,  F02M26/28 ,  Y02T10/125 ,  Y02T10/44 ,  Y02T10/47

摘要： A device for purifying the exhaust gas of an internal combustion engine is disclosed. The device includes a particulate filter arranged in the exhaust system, which carries a catalyst for absorbing and reducing NOx. The catalyst absorbs NOx when the air-fuel ratio in the surrounding atmosphere thereof is lean and releases the absorbed NOx to purify NOx by reduction when the air-fuel ratio is stoichiometric or rich. The device further includes a catalytic apparatus for purifying NOx arranged in the exhaust system upstream of the particulate filter, which has an oxidation function.

摘要翻译： 公开了一种用于净化内燃机的废气的装置。 该装置包括布置在排气系统中的颗粒过滤器，其携带用于吸收和还原NO x的催化剂。 当周围空气中的空气燃料比是稀的时，催化剂吸收NO x，并且通过以下方式释放吸收的NO x x以净化NO x 当空燃比为化学计量或浓度时，减少。 该装置还包括用于净化排气系统中的排气系统的催化装置，该排气系统具有氧化功能的颗粒过滤器的上游。

公开(公告)号：US06510686B2

公开(公告)日：2003-01-28

申请号：US09814806

申请日：2001-03-23

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

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

IPC分类号： F01N300

CPC分类号： B01D46/0067 ,  B01D46/0041 ,  B01D46/24 ,  B01D53/9431 ,  B01D2279/30 ,  F01N3/021 ,  F01N3/023 ,  F01N3/0233 ,  F01N3/0235 ,  F01N3/0253 ,  F01N3/031 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  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 reversal device reverses upstream and downstream sides of a particulate filter. First and second collecting surfaces of a collecting wall are used alternately to collect particulates. In order to ensure that a portion of exhaust gas bypasses the particulate filter while a valve body is switched from one position to the other position to reverse the upstream and downstream sides of the particulate filter, the reversal device switches the valve body as soon as the amount of particulates discharged from a combustion chamber of an engine becomes equal to or smaller than a set discharge amount.

摘要翻译： 反转装置反转微粒过滤器的上游侧和下游侧。 交替使用收集壁的第一和第二收集表面来收集颗粒。 为了确保废气的一部分绕过微粒过滤器，同时阀体从一个位置切换到另一个位置以反转微粒过滤器的上游侧和下游侧，反转装置一旦切换阀体， 从发动机的燃烧室排出的微粒量等于或小于设定的排出量。

公开(公告)号：US06644022B2

公开(公告)日：2003-11-11

申请号：US09979064

申请日：2001-11-16

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： F01N3/0233 ,  F01N3/023 ,  F01N3/0235 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0842 ,  F01N2260/14 ,  F01N2290/00 ,  F01N2330/06 ,  F01N2410/08 ,  F01N2510/06 ,  F01N2570/16 ,  F02B37/00 ,  F02M26/05 ,  F02M26/28

摘要： A particulate filter (22) is arranged in an exhaust passage of an engine, while an exhaust throttle valve (45) is arranged in the exhaust passage downstream of the particulate filter (22). The exhaust throttle valve (45) is fully closed once, then fully opened cyclically. At that time, the flow velocity of the exhaust gas is increased for just an instant in a pulse-like manner, whereby masses of particulate are separated from the particulate filter 22 and discharged.

公开(公告)号：US06594991B2

公开(公告)日：2003-07-22

申请号：US09817172

申请日：2001-03-27

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：US06546721B2

公开(公告)日：2003-04-15

申请号：US09834894

申请日：2001-04-16

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

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

IPC分类号： F01N300

CPC分类号： F01N3/0842 ,  F01N3/0821 ,  F01N2570/14 ,  Y02A50/2344

摘要： An engine comprising a particulate filter which is arranged in the exhaust passage and has a function of absorbing NOx, where the amount of discharged particulate discharged from the combustion chamber per unit time is made smaller than the amount of particulate removable by oxidation per unit time without emitting a luminous flame on the particulate filter and where the temperature of the particulate filter is maintained in a temperature range where the NOx absorption rate becomes more than a certain value.

摘要翻译： 一种发动机，其包括布置在排气通道中并且具有吸收NOx的功能的颗粒过滤器，其中使得每单位时间从燃烧室排出的排出颗粒的量小于每单位时间通过氧化除去的颗粒的数量，而没有 在颗粒过滤器上发出发光的火焰，并且其中微粒过滤器的温度保持在NOx吸收速率变得超过一定值的温度范围内。