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：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：US06898930B2

公开(公告)日：2005-05-31

申请号：US10333414

申请日：2002-08-08

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

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

IPC分类号： B01J35/04 ,  F01N3/022 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  F02B37/00 ,  F02M25/07 ,  F01N3/02

CPC分类号： B01J35/04 ,  B28B11/006 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0878 ,  F01N3/103 ,  F01N3/2053 ,  F01N3/2828 ,  F01N13/009 ,  F01N2240/20 ,  F01N2260/14 ,  F02B37/00 ,  F02M26/05 ,  F02M26/10 ,  F02M26/15 ,  F02M26/32

摘要： There is provided an exhaust gas purification device (22) comprising a substrate used for purifying components contained in an exhaust gas discharged from an engine. The substrate has partitions (54) which define passages (50,51) and are formed of porous material having fine pores each having a predetermined average size. The end portions of the adjacent partitions (54) defining each of part of the passages (50,51) of the substrate are partially connected to each other such that the end portions (52,53) are tapered toward the outside of the substrate. The tapered end portions partially close the end opening of the corresponding passage and form a small hole (55,56) defined by the tips thereof. The size of each small hole (55,56) is smaller than the cross sectional area of the corresponding passage (50) and larger than the sizes of the fine pores of the partitions (54).

摘要翻译： 提供了一种排气净化装置（22），其包括用于净化从发动机排出的废气中所含的组分的基板。 衬底具有限定通道（50,51）的隔板（54），并且由具有预定平均尺寸的细孔的多孔材料形成。 限定基板的通道（50,51）的每一部分的相邻隔板（54）的端部彼此部分连接，使得端部部分（52,53）朝向基板的外侧逐渐变细。 锥形端部部分地封闭相应通道的端部开口并形成由其尖端限定的小孔（55,56）。 每个小孔（55,56）的尺寸小于相应通道（50）的横截面积并且大于分隔壁（54）的细孔尺寸。

公开(公告)号：US06883310B2

公开(公告)日：2005-04-26

申请号：US10405647

申请日：2003-04-03

申请人： Koichiro Nakatani ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Koichi Kimura ,  Shunsuke Toshioka ,  Akira Mikami

发明人： Koichiro Nakatani ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Koichi Kimura ,  Shunsuke Toshioka ,  Akira Mikami

IPC分类号： F01N3/24 ,  B01D53/94 ,  F01N3/031 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F01N13/04 ,  F02B37/00 ,  F01N3/00

CPC分类号： F01N3/2053 ,  B01D53/9454 ,  F01N3/031 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/2006 ,  F01N13/011 ,  F01N2330/06 ,  F01N2340/02 ,  F01N2410/00 ,  F01N2610/03 ,  F02B37/00 ,  Y02T10/22 ,  Y02T10/26

摘要： An internal combustion engine emission control apparatus includes split passages that divide exhaust gas discharged from an internal combustion engine into a plurality of streams. Emission control catalysts are provided that individually divide the exhaust gas in the split passages, and remove a component present in the exhaust gas at a high removal rate if a temperature of exhaust gas that inflows via the split passages satisfies a predetermined temperature condition. A controller changes proportions of the amounts of flow of the exhaust gas into the split passages so that the predetermined temperature condition is satisfied in at least one split passage of the split passages. Therefore, the emission control can be performed in a broad range of changing temperatures of the exhaust gas.

摘要翻译： 内燃机排放控制装置包括将从内燃机排出的废气分成多个流的分流通道。 提供排放控制催化剂，其分开分流通道中的废气，并且如果通过分流通道流入的废气的温度满足预定的温度条件，则以高的去除速率去除废气中存在的组分。 控制器将排气流量的比例改变为分割通道，使得在分流通道的至少一个分流通道中满足预定温度条件。 因此，排气控制可以在废气的变化温度的宽范围内进行。

公开(公告)号：US06834496B2

公开(公告)日：2004-12-28

申请号：US10259894

申请日：2002-09-30

申请人： Koichiro Nakatani ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Shunsuke Toshioka ,  Koichi Kimura ,  Akira Mikami

发明人： Koichiro Nakatani ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Shunsuke Toshioka ,  Koichi Kimura ,  Akira Mikami

IPC分类号： F01N300

CPC分类号： F01N3/206 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0842 ,  F01N3/2006 ,  F01N3/2033 ,  F01N13/011 ,  F01N2430/06 ,  F01N2430/08 ,  Y02T10/26

摘要： An exhaust gas purifying apparatus for an internal combustion engine includes plural catalysts provided in parallel. In a case where temperatures of the catalysts need to be raised, a catalyst is selected from among the catalysts and the exhaust gas is allowed to flow in the selected catalyst. In addition, the temperature of the selected catalyst is raised without using a reducing agent when the temperatures of the catalysts are lower than a temperature range in which the reducing agent can be purified. Alternatively, the reducing agent is supplied to the selected catalyst so as to raise the temperature thereof when the temperatures of the catalysts are equal to or higher than the temperature at which the reducing agent can be purified.

摘要翻译： 用于内燃机的废气净化装置包括并联设置的多个催化剂。 在需要升高催化剂温度的情况下，从催化剂中选择催化剂，并且允许废气在选择的催化剂中流动。 此外，当催化剂的温度低于还原剂可以纯化的温度范围时，所选择的催化剂的温度升高而不使用还原剂。 或者，当催化剂的温度等于或高于还原剂可以纯化的温度时，将还原剂供给到所选择的催化剂中，以提高其温度。

公开(公告)号：US06823664B2

公开(公告)日：2004-11-30

申请号：US10307311

申请日：2002-12-02

申请人： Koichiro Nakatani ,  Shinya Hirota ,  Akira Mikami ,  Toshiaki Tanaka ,  Takamitsu Asanuma ,  Koichi Kimura ,  Shunsuke Toshioka

发明人： Koichiro Nakatani ,  Shinya Hirota ,  Akira Mikami ,  Toshiaki Tanaka ,  Takamitsu Asanuma ,  Koichi Kimura ,  Shunsuke Toshioka

IPC分类号： F01N300

CPC分类号： F02D41/028 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/0233 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0878 ,  F01N3/0885 ,  F01N13/0097 ,  F01N13/011 ,  F01N2570/04

摘要： An exhaust gas purification device having a NOx absorbent includes a by-pass passage for by-passing the NOx absorbent, an exhaust gas flow rate control portion for regulating both a flow rate of exhaust gas flowing to the NOx absorbent and the flow rate of the exhaust gas bypassing the NOx absorbent, and a reductant addition portion for adding reductant into an exhaust passage upstream of the NOx absorbent. In this device, when it is necessary to discharge sulfur components from the NOx absorbent, a temperature rise control is executed such that a temperature of the NOx absorbent becomes higher than a predetermined temperature. Next, a rich condition control is executed such that an air-fuel ratio of the exhaust gas flowing to the NOx absorbent becomes one of a substantially stoichiometric condition and a rich condition. The flow rate of the exhaust gas to the NOx absorbent during the temperature rise control is controlled so as to be higher than that during the rich condition control.

摘要翻译： 具有NOx吸收剂的排气净化装置具有用于旁路NOx吸收剂的旁路通路，排气流量控制部，用于调节流向NOx吸收剂的废气的流量和 旁路NO x吸收剂的废气和用于将还原剂添加到NOx吸收剂上游的排气通道的还原剂添加部分。 在该装置中，当需要从NOx吸收剂排出硫成分时，执行升温控制，使得NOx吸收剂的温度变得高于预定温度。 接下来，执行丰富状态控制，使得流向NOx吸收剂的废气的空燃比成为基本上理论上的条件和浓度条件之一。 在升温控制期间，排气对NOx吸收剂的流量进行控制，使其高于浓缩条件控制时的流量。

公开(公告)号：US06672050B2

公开(公告)日：2004-01-06

申请号：US10232360

申请日：2002-09-03

申请人： Hiroki Murata ,  Toshio Suematsu ,  Shizuo Sasaki ,  Kohei Igarashi ,  Shinya Hirota ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Shunsuke Toshioka ,  Koichi Kimura ,  Akira Mikami ,  Hiroyuki Nagareda

发明人： Hiroki Murata ,  Toshio Suematsu ,  Shizuo Sasaki ,  Kohei Igarashi ,  Shinya Hirota ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Shunsuke Toshioka ,  Koichi Kimura ,  Akira Mikami ,  Hiroyuki Nagareda

IPC分类号： F01N300

CPC分类号： B60W10/06 ,  B60K6/485 ,  B60L15/2045 ,  B60L2240/36 ,  B60L2240/423 ,  B60L2240/443 ,  B60L2270/12 ,  F02D41/024 ,  F02D41/0255 ,  F02D41/0275 ,  F02D41/029 ,  F02D41/083 ,  F02D41/1446 ,  F02D41/187 ,  F02D2041/026 ,  F02D2041/389 ,  F02D2200/0802 ,  F02D2200/0812 ,  F02D2250/18 ,  F02M26/06 ,  F02M26/15 ,  Y02T10/26 ,  Y02T10/6226 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7283

摘要： An exhaust gas purification device of an engine comprising a particulate filter arranged in an exhaust passage. An electric motor able to impart a vehicle drive power separate from the engine and able to generate electric power from the engine is provided. After the particulate filter finishes being warmed up, when the temperature of the particulate filter is low, the output torque of the engine is increased and the amount of increase of the output torque is consumed by the power generating action of the electric motor.

摘要翻译： 一种发动机的排气净化装置，其包括布置在排气通道中的颗粒过滤器。 提供能够赋予与发动机分离并能够从发动机产生电力的车辆驱动力的电动机。 在颗粒过滤器完成加热之后，当微粒过滤器的温度低时，发动机的输出扭矩增加，并且由电动机的发电动作消耗输出转矩的增加量。

公开(公告)号：US07685812B2

公开(公告)日：2010-03-30

申请号：US10537748

申请日：2004-10-04

申请人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma ,  Yasuaki Nakano ,  Shunsuke Toshioka

发明人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma ,  Yasuaki Nakano ,  Shunsuke Toshioka

IPC分类号： F01N3/00

CPC分类号： F02D41/0275 ,  B01D53/9481 ,  B01D53/9495 ,  F01N3/0842 ,  F01N3/0871 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/024 ,  F02D2200/0802 ,  F02D2200/0806 ,  Y02A50/2345 ,  Y02T10/26

摘要： A NOx storing catalyst (11) comprising a precious metal catalyst (46) and NOx absorbent (47) is arranged in an exhaust passage. When the air-fuel ratio of the exhaust gas is lean, the storing catalyst cold stores the NO2 contained in the exhaust in the absorbent when the catalyst is inactive and hot stores the cold stored NO2 in the absorbent when the catalyst is made active. The NO2 contained in the exhaust is cold stored in the absorbent when the catalyst is not activated, and when a predetermined NOx storing catalyst restoring condition (107) is met, a NOx storing catalyst restoring control (109, 115) including raising the NOx storing catalyst temperature to a predetermined temperature to active it (109) is executed so as to restore the cold storing capability of the NOx absorbent.

摘要翻译： 包含贵金属催化剂（46）和NOx吸收剂（47）的NOx储存催化剂（11）布置在排气通道中。 当排气的空燃比为稀时，当催化剂不活动时，储存催化剂冷存储在吸收剂中的排气中的NO 2，并且当催化剂活化时，将热的储存的NO 2储存在吸收剂中。 当催化剂未被活化时，排气中含有的NO2被冷藏在吸收剂中，并且当满足预定的NOx储存催化剂恢复条件（107）时，存储催化剂复原控制（109,115）包括提高NOx储存 催化剂温度达到预定温度以使其活化（109），以恢复NOx吸收剂的冷藏能力。