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公开(公告)号：US08783023B2
公开(公告)日：2014-07-22
申请号：US13696972
申请日：2010-05-12
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。
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公开(公告)号：US20130055703A1
公开(公告)日：2013-03-07
申请号：US13696972
申请日：2010-05-12
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。
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公开(公告)号：US09206724B2
公开(公告)日：2015-12-08
申请号：US13640231
申请日：2010-04-08
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。
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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。
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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。
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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.
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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。
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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.
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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。
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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。
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