公开(公告)号：US06837043B2

公开(公告)日：2005-01-04

申请号：US10418206

申请日：2003-04-18

申请人： Koichiro Nakatani ,  Shinya Hirota ,  Yoshimitsu Henda ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura ,  Shunsuke Toshioka ,  Yasuaki Nakano ,  Akira Mikami

发明人： Koichiro Nakatani ,  Shinya Hirota ,  Yoshimitsu Henda ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura ,  Shunsuke Toshioka ,  Yasuaki Nakano ,  Akira Mikami

IPC分类号： F02D9/06 ,  B01D46/44 ,  F01N3/02 ,  F01N3/022 ,  F01N3/023 ,  F01N3/025 ,  F01N3/031 ,  F01N3/035 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N3/36 ,  F01N13/02 ,  F01N3/00

CPC分类号： F01N3/0885 ,  F01N3/0233 ,  F01N3/0253 ,  F01N3/031 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0878 ,  F01N3/2093 ,  F01N13/009 ,  F01N2260/14 ,  F01N2410/04 ,  F01N2610/03

摘要： A device for purifying the exhaust gas of an internal combustion engine includes a particulate filter carrying an active-oxygen releasing agent that can cause the sulfur poisoning, a SOx trap unit arranged upstream of the particulate filter, and a bypass section for making the exhaust gas mainly bypass said particulate filter when SOx is released from the SOx trap unit. Further, an exhaust choke valve for an exhaust brake is arranged between the SOx trap unit and the exhaust gas branch portion of the bypass section.

公开(公告)号：US06901750B2

公开(公告)日：2005-06-07

申请号：US10645621

申请日：2003-08-22

申请人： Shunsuke Toshioka ,  Shinya Hirota ,  Yoshimitsu Henda ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura ,  Yasuaki Nakano ,  Koichiro Nakatani ,  Akira Mikami ,  Takanori Ueda

发明人： Shunsuke Toshioka ,  Shinya Hirota ,  Yoshimitsu Henda ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichi Kimura ,  Yasuaki Nakano ,  Koichiro Nakatani ,  Akira Mikami ,  Takanori Ueda

IPC分类号： F01N3/02 ,  B01D53/94 ,  F01N3/022 ,  F01N3/023 ,  F01N3/025 ,  F01N3/029 ,  F01N3/035 ,  F01N3/05 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  F02B3/06 ,  F02B37/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02M25/07 ,  F01N3/00

CPC分类号： F02D41/028 ,  B01D53/9495 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/2093 ,  F01N13/009 ,  F01N2610/03 ,  F01N2900/1612 ,  F02B3/06 ,  F02B37/00 ,  F02B2275/14 ,  F02D41/1441 ,  F02M26/05 ,  F02M26/23 ,  F02M26/33 ,  F02M26/46 ,  Y02T10/144

摘要： Exhaust emission control apparatus and method for an internal combustion engine maintain a small amount of sulfur components contained in exhaust gas flowing out of a sulfur component retainer agent even if the amount of sulfur components retained by the agent becomes great. The exhaust emission control apparatus includes a NOx retainer agent and the sulfur component retainer agent. The apparatus performs a NOx releasing process of adjusting the air-fuel ratio of exhaust gas flowing into the sulfur component retainer agent so that the air-fuel ratio of exhaust gas flowing into the NOx retainer agent becomes substantially stoichiometric or rich of stoichiometry if NOx retained by the NOx retainer agent is to be released. The apparatus prohibits the air-fuel ratio of exhaust gas flowing into the sulfur component retainer agent from becoming substantially stoichiometric or rich of stoichiometry if the amount of the sulfur components retained by the agent is at least a first predetermined amount.

摘要翻译： 即使由该试剂保留的硫成分的量变多，内燃机的废气排放控制装置和方法保持从硫成分保持剂流出的废气中所含的少量硫成分。 废气排放控制装置包括NOx保持剂和硫成分保持剂。 该装置执行NOx释放过程，其调节流入硫成分保持剂的废气的空燃比，使得流入NOx保持剂的废气的空燃比在保持NOx的情况下变成基本上化学计量或浓度更高的化学计量 由NOx保持剂被释放。 如果由试剂保留的硫成分的量至少为第一预定量，则该装置禁止流入硫成分保持剂的排气的空燃比变为基本上化学计量或浓度较高的化学计量。

公开(公告)号：US06988360B2

公开(公告)日：2006-01-24

申请号：US10620342

申请日：2003-07-17

申请人： Koichi Kimura ,  Shinya Hirota ,  Yoshimitsu Henda ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Shunsuke Toshioka ,  Yasuaki Nakano ,  Koichiro Nakatani ,  Akira Mikami

发明人： Koichi Kimura ,  Shinya Hirota ,  Yoshimitsu Henda ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Shunsuke Toshioka ,  Yasuaki Nakano ,  Koichiro Nakatani ,  Akira Mikami

IPC分类号： F01N3/00

CPC分类号： F01N3/0821 ,  F01N3/0233 ,  F01N3/031 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N13/02 ,  F01N2410/00 ,  F01N2410/12 ,  F01N2610/03

摘要： An exhaust emission purification device comprises a sulfur component holding agent arranged on the exhaust path of an internal combustion engine for holding a sulfur component, a NOx holding agent arranged downstream of the sulfur component holding agent in the exhaust gas for holding NOx and the sulfur components when the air-fuel ratio of the exhaust gas flowing thereinto is lean, and a reducing agent adding unit for adding a reducing agent to the exhaust gas flowing into the NOx holding agent. The concentration of the sulfur component contained in the reducing agent added by the reducing agent adding unit is lower than the concentration of at least the sulfur component contained in the fuel supplied to the combustion chamber of the internal combustion engine. Thus, the sulfur poisoning of the exhaust emission purifier can be avoided while at the same time reducing the fuel consumption rate.

摘要翻译： 排气净化装置，其特征在于，具备配置在所述硫成分保持用内燃机的排气路径上的硫成分保持剂，位于所述排气中的硫成分保持剂的下游的NO x 用于保持NO x的气体和流入其中的排气的空燃比变少的硫成分;还原剂添加单元，用于向流入NO的废气中添加还原剂 保持剂。 由还原剂添加单元添加的还原剂中所含的硫成分的浓度低于供给到内燃机的燃烧室的燃料中至少含有的硫成分的浓度。 因此，可以避免排气净化器的硫中毒，同时降低燃料消耗率。

公开(公告)号：US06829891B2

公开(公告)日：2004-12-14

申请号：US10168326

申请日：2002-06-20

申请人： Zenichiro Kato ,  Hiromichi Yanagihara ,  Toshihisa Sugiyama ,  Yoshimitsu Henda ,  Kazuhiko Shiratani ,  Rentaro Kuroki

发明人： Zenichiro Kato ,  Hiromichi Yanagihara ,  Toshihisa Sugiyama ,  Yoshimitsu Henda ,  Kazuhiko Shiratani ,  Rentaro Kuroki

IPC分类号： F01N300

CPC分类号： F02D41/027 ,  B01D53/0454 ,  B01D53/927 ,  B01D53/9409 ,  B01D2253/102 ,  B01D2257/702 ,  B01D2258/012 ,  B01D2259/40088 ,  B01D2259/4566 ,  F01N3/021 ,  F01N3/0222 ,  F01N3/0226 ,  F01N3/023 ,  F01N3/035 ,  F01N3/08 ,  F01N3/0821 ,  F01N3/0835 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/011 ,  F01N13/10 ,  F01N2240/20 ,  F01N2330/06 ,  F01N2330/12 ,  F01N2340/06 ,  F01N2370/00 ,  F01N2510/065 ,  F01N2570/12 ,  F02B37/00 ,  F02D41/025 ,  F02D41/029 ,  F02D41/1441 ,  F02D41/1448 ,  F02D41/3809 ,  F02D2011/102 ,  F02D2041/389 ,  F02D2250/38 ,  Y02T10/26

摘要： A first heat-resistant filter medium is disposed in an exhaust pathway of an internal combustion engine. The first heat-resistant filter medium traps hydrocarbon compounds and carbon-containing particulates included in a flow of exhaust gas in a dispersive manner to bring the respective particulates and hydrocarbon compounds in contact with oxygen included in the exhaust gas. The trapped hydrocarbon compounds and the trapped carbon-containing particulates are subjected to combustion with the exhaust gas having a filter inflow temperature lower than a combustible temperature of the carbon-containing particulates. A second heat-resistant filter medium is further disposed downstream of the first heat-resistant filter medium to trap the remaining carbon-containing particulates, which have not been trapped by the first heat-resistant filter medium but have passed through the first heat-resistant filter medium. This arrangement desirably enhances the reduction rate of the particulates.

摘要翻译： 第一耐热过滤介质设置在内燃机的排气通道中。 第一耐热过滤介质以分散方式捕集包含在废气流中的烃化合物和含碳颗粒，使各个微粒和烃化合物与排气中包含的氧接触。 被捕获的碳氢化合物和被捕获的含碳微粒被过滤器流入温度低于含碳微粒的可燃温度的废气燃烧。 第二耐热过滤介质还设置在第一耐热过滤介质的下游，以捕集未被第一耐热过滤介质捕获但已通过第一耐热性的剩余含碳颗粒 过滤介质。 这种布置理想地提高了微粒的还原率。

公开(公告)号：US5941066A

公开(公告)日：1999-08-24

申请号：US927463

申请日：1997-09-11

申请人： Yasushi Araki ,  Yoshimitsu Henda ,  Yoshimasa Watanabe

发明人： Yasushi Araki ,  Yoshimitsu Henda ,  Yoshimasa Watanabe

IPC分类号： F02B37/12 ,  B01D46/42 ,  B01D46/48 ,  F01N3/02 ,  F01N3/023 ,  F01N3/031 ,  F01N9/00 ,  F02B3/06 ,  F02B27/04 ,  F02B37/18 ,  F02D21/08 ,  F02M25/07 ,  F01N5/04

CPC分类号： F02D21/08 ,  F01N3/023 ,  F01N3/031 ,  F01N9/002 ,  F02B27/04 ,  F02B37/18 ,  F02B3/06 ,  F02M26/05 ,  Y02T10/144 ,  Y02T10/146 ,  Y02T10/47 ,  Y10S55/30

摘要： A device for purifying the exhaust gas of an internal combustion engine is disclosed. The device comprises a collision collecting type filter for collecting particulates which is arranged in an exhaust passage, can vary a pressure in the exhaust passage on at least one of the upstream side and downstream side of said filter, determines that the collected particulates have been burned and the filter has been regenerated, and suddenly changes the pressure in the exhaust passage when it is determined that the filter has been regenerated.

摘要翻译： 公开了一种用于净化内燃机的废气的装置。 该装置包括用于收集布置在排气通道中的微粒的碰撞收集型过滤器，可以在所述过滤器的上游侧和下游侧中的至少一个上改变排气通道中的压力，确定所收集的颗粒已被燃烧 并且过滤器已被再生，并且当确定过滤器已被再生时，突然改变排气通道中的压力。

公开(公告)号：US06945036B2

公开(公告)日：2005-09-20

申请号：US10130110

申请日：2001-09-18

申请人： Zenichiro Kato ,  Hiromichi Yanagihara ,  Toshihisa Sugiyama ,  Yoshimitsu Henda ,  Kazuhiko Shiratani ,  Rentaro Kuroki

发明人： Zenichiro Kato ,  Hiromichi Yanagihara ,  Toshihisa Sugiyama ,  Yoshimitsu Henda ,  Kazuhiko Shiratani ,  Rentaro Kuroki

IPC分类号： B01D46/24 ,  B01D53/04 ,  B01D53/92 ,  F01N3/021 ,  F01N3/022 ,  F01N3/023 ,  F01N3/035 ,  F01N3/08 ,  F01N13/02 ,  F01N13/04 ,  F01N13/10 ,  F02B37/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/38 ,  F01N3/00

CPC分类号： F02D41/027 ,  B01D53/0438 ,  B01D53/927 ,  B01D2253/308 ,  B01D2257/702 ,  B01D2258/01 ,  F01N3/021 ,  F01N3/0222 ,  F01N3/0226 ,  F01N3/023 ,  F01N3/035 ,  F01N3/08 ,  F01N3/0821 ,  F01N3/0835 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/011 ,  F01N13/10 ,  F01N2240/20 ,  F01N2330/06 ,  F01N2330/12 ,  F01N2370/00 ,  F01N2510/065 ,  F01N2570/12 ,  F02B37/00 ,  F02D41/025 ,  F02D41/029 ,  F02D41/1441 ,  F02D41/1448 ,  F02D41/3809 ,  F02D2011/102 ,  F02D2041/389 ,  F02D2250/38 ,  Y02T10/26 ,  Y10S55/30

摘要： Carbon-containing particulates like soot included in an exhaust gas of an internal combustion engine are collected by means of a heat-resistant filter medium. The filter medium dispersedly collects hydrocarbon compounds and the carbon-containing particulates included in the exhaust gas. Even when the exhaust gas has a lower temperature than the combustible temperature of the carbon-containing particulates, such dispersed collection ensures start of a preliminary oxidation reaction of the collected hydrocarbon compounds with oxygen included in the exhaust gas. The collected hydrocarbon compounds and the collected carbon-containing particulates are then subjected to combustion with the exhaust gas having a filter inflow temperature lower than the combustible temperature of the carbon-containing particulates by utilizing the reaction heat and active species produced by the reaction. This technique thus simply but securely regulates and reduces the carbon-containing particulates included in the exhaust gas.

摘要翻译： 通过耐热过滤介质收集内燃机废气中含有的含碳微粒，如煤烟。 过滤介质分散地收集包含在废气中的烃化合物和含碳微粒。 即使当排气的温度低于含碳微粒的可燃温度时，这种分散收集确保收集的烃化合物与废气中包含的氧的初步氧化反应开始。 然后利用反应热和由反应生成的活性物质，将收集到的烃化合物和收集的含碳颗粒与具有低于含碳微粒的可燃温度的过滤器流入温度的废气进行燃烧。 因此，这种技术简单地但可靠地调节和减少包括在废气中的含碳颗粒。