公开(公告)号：US08156731B2

公开(公告)日：2012-04-17

申请号：US12227876

申请日：2008-04-03

申请人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki

发明人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma ,  Hiromasa Nishioka ,  Hiroshi Otsuki

IPC分类号： F01N3/00

CPC分类号： F01N3/0885 ,  B01D53/9422 ,  B01D53/9431 ,  B01D53/9477 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/91 ,  B01D2257/302 ,  F01N3/0842 ,  F01N3/085 ,  F01N13/0093 ,  F01N2560/026 ,  F01N2570/04 ,  F01N2610/03

摘要： An internal combustion engine in which a front end catalyst (12) and rear end catalyst (14) comprising NOx storing catalysts are arranged in an engine exhaust passage. When these catalysts (12, 14) should recover from SOx poisoning, SOx poisoning recovery proceeding is performed in which the temperatures of the corresponding catalysts (12, 14) are raised to the SOx release temperature and the air-fuel ratio of the exhaust gas flowing into the corresponding catalysts (12, 14) is made rich. In this case, the frequency of performing the SOx poisoning recovery proceeding of the rear end catalyst (14) is made higher than the frequency of performing the SOx poisoning recovery proceeding of the front end catalyst (12).

摘要翻译： 在发动机排气通路中配置有前端催化剂（12）和包含NOx储存催化剂的后端催化剂（14）的内燃机。 当这些催化剂（12,14）从SOx中毒中恢复时，进行SOx中毒恢复进程，其中相应的催化剂（12,14）的温度升高到SOx释放温度，排气的空燃比 流入相应的催化剂（12,14）中。 在这种情况下，使后端催化剂（14）的SOx中毒恢复进行的频率比进行前端催化剂（12）的SOx中毒恢复进行的频率高。

公开(公告)号：US08136346B2

公开(公告)日：2012-03-20

申请号：US12083009

申请日：2006-12-01

申请人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma

发明人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma

IPC分类号： F01N3/00 ,  F01N3/10

CPC分类号： B01D53/9454 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2257/302 ,  B01D2258/012 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0885 ,  F01N13/009 ,  F01N13/0097 ,  F01N2900/102 ,  F01N2900/1612 ,  F02B37/00 ,  F02D29/02 ,  F02D41/028 ,  F02D41/0285 ,  F02D41/029 ,  F02D41/405 ,  F02D2200/0625 ,  Y02A50/2324 ,  Y02T10/22

摘要： A post-treatment system comprised of an SOx trapping catalyst (11), a particulate filter (13) carrying an NOx storing and reducing catalyst, and an NOx storing and reducing catalyst (15) and a fuel feed valve (17) for feeding fuel for post processing to the post-treatment system are arranged in an engine exhaust passage. Each time an operating period of the engine passes a certain period, values of operating parameters of the engine and the method of feeding the post-treatment use fuel are reset so that the total amount of consumption of the combustion use fuel and post-treatment use fuel becomes smallest while maintaining the amounts of the harmful components discharged into the atmosphere at below the regulatory values.

摘要翻译： 由SOx捕集催化剂（11），带有NOx储存和还原催化剂的颗粒过滤器（13）和用于供给燃料的NOx储存和还原催化剂（15）和燃料供给阀（17）组成的后处理系统 用于后处理的后处理系统布置在发动机排气通道中。 每当发动机的运转时间经过一段时间时，重新设定发动机的运转参数值和供给后处理用途燃料的方法，使得燃烧用燃料和后处理用途的总消耗量 燃料变得最小，同时将排放到大气中的有害成分的量保持在监管值以下。

公开(公告)号：US07914748B2

公开(公告)日：2011-03-29

申请号：US11988865

申请日：2006-07-21

申请人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma

发明人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma

IPC分类号： B01D50/00

CPC分类号： B01D53/9454 ,  B01D2257/302 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/085 ,  F01N13/009 ,  F01N2330/06 ,  F02B29/04 ,  F02B37/00 ,  F02B2275/14 ,  F02M26/06 ,  F02M26/15 ,  F02M26/28 ,  Y02A50/2324 ,  Y02A50/2348 ,  Y02T10/22

摘要： An exhaust purification apparatus of an internal combustion engine purifying exhaust gas by removing SOx from the exhaust gas is provided. In the exhaust purification apparatus provided with sulfur oxide trapping material for trapping sulfur oxides exhausted from an internal combustion engine, aggregates of the sulfur oxide trapping material (41) are arranged able to contact the exhaust gas in spaces (44) separated by partitions comprised of a porous material (42) having permeability.

摘要翻译： 提供了通过从废气中除去SO x来净化废气的内燃机的排气净化装置。 在设置有用于捕集从内燃机排出的硫氧化物的硫氧化物捕集材料的排气净化装置中，硫氧化物捕集材料（41）的集合体布置成能够与由隔板 具有渗透性的多孔材料（42）。

公开(公告)号：US20100089039A1

公开(公告)日：2010-04-15

申请号：US12522183

申请日：2008-07-02

申请人： Takamitsu Asanuma ,  Shinya Hirota ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Tomihisa Oda ,  Shunsuke Toshioka

发明人： Takamitsu Asanuma ,  Shinya Hirota ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Tomihisa Oda ,  Shunsuke Toshioka

IPC分类号： F01N9/00 ,  F01N3/04 ,  F01N3/10

CPC分类号： F01N3/035 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2257/404 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/208 ,  F01N13/009 ,  F01N2560/06 ,  F01N2610/146 ,  F01N2900/08 ,  Y02T10/24

摘要： In an internal combustion engine, an NOx selective reduction catalyst (14) is arranged in an engine exhaust passage, and an NOx storage catalyst (12) is arranged in the engine exhaust passage upstream of the NOx selective reduction catalyst (14). When the amount of NOx stored in the NOx storage catalyst (12) exceeds a predetermined allowable value, the NOx storage catalyst (12) is raised in temperature to make the NOx storage catalyst (12) release the NOx. The amount of urea feed is decreased by exactly the amount of reduction of the calculated stored NOx amount with respect to the amount of urea feed determined from the engine operating state, and the amount of urea feed is increased by exactly the amount of reduction of the calculated released NOx amount with respect to the amount of urea feed determined from the engine operating state.

摘要翻译： 在内燃机中，在发动机排气通路中配置NOx选择还原催化剂（14），在NOx选择还原催化剂（14）的上游配置有NOx吸留催化剂（12）。 当存储在NOx吸留催化剂（12）中的NOx的量超过预定的容许值时，NOx吸留催化剂（12）升温，使NOx吸留催化剂（12）释放NOx。 尿素进料的量相对于从发动机运转状态确定的尿素进料量的精确量减少计算的存储的NOx量的量减少，并且尿素进料量的精确量减少 相对于从发动机工作状态确定的尿素进料量计算的释放的NOx量。

公开(公告)号：US20080223020A1

公开(公告)日：2008-09-18

申请号：US11794732

申请日：2006-12-01

申请人： Kohei Yoshida ,  Takamitsu Asanuma ,  Shinya Hirota

发明人： Kohei Yoshida ,  Takamitsu Asanuma ,  Shinya Hirota

IPC分类号： F01N3/10 ,  F01N3/18

CPC分类号： B01D53/9454 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2257/302 ,  B01D2258/012 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/208 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2550/03 ,  F01N2560/027 ,  F01N2610/03 ,  F02B37/00 ,  Y02T10/22 ,  Y02T10/24 ,  Y02T10/47

摘要： An engine exhaust passage has an SOx trapping catalyst (11), a particulate filter (13) holding an NOx storing/reducing catalyst, and an NOx storing/reducing catalyst (15) forming a post-treatment system and a fuel feed valve (17) for feeding fuel for post processing in the post-treatment system arranged inside it. When any catalyst has a degree of degradation exceeding a predetermined degree of degradation, the method of feeding the post-treatment fuel is reset so that the post-treatment fuel required for purification of the exhaust gas can be fed into the catalyst with the lowest degree of degradation to make the catalyst with the lowest degree of degradation handle the purification action of the exhaust gas.

摘要翻译： 发动机排气通道具有SO 2捕集催化剂（11），保持NO x x储存/还原催化剂的颗粒过滤器（13）和NO x 形成后处理系统的储存/还原催化剂（15）和用于在布置在其内的后处理系统中供给用于后处理的燃料的燃料供给阀（17）。 当任何催化剂具有超过预定的劣化程度的降解程度时，重新设置供给后处理燃料的方法，使得可以将排气净化所需的后处理燃料以最低程度进料到催化剂中 的降解以使具有最低降解程度的催化剂处理废气的净化作用。

公开(公告)号：US20060037312A1

公开(公告)日：2006-02-23

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 ,  F01N3/10

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NO x吸收剂（47）的NO x x存储催化剂（11）布置在排气通道中。 当废气的空燃比为稀时，当催化剂不活动时，储存催化剂冷存储在吸收剂中排气中的NO 2，并且热存储冷存储的NO 当催化剂活化时，在吸收剂中。 当催化剂未被活化时，排气中含有的NO 2 2被冷藏在吸收剂中，并且当满足预定的存储催化剂还原条件（107）时， 执行包括使存储催化剂温度升高到预定温度以使其活化（109）的存储催化剂恢复控制（109,115）的NO X ，以便恢复 NO x吸收剂的冷藏能力。

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：US06901743B2

公开(公告)日：2005-06-07

申请号：US10452636

申请日：2003-06-03

申请人： Takamitsu Asanuma ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takanori Ueda ,  Tetsuya Yamashita ,  Yasuaki Nakano

发明人： Takamitsu Asanuma ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takanori Ueda ,  Tetsuya Yamashita ,  Yasuaki Nakano

IPC分类号： F02M25/07 ,  B01D53/94 ,  F01N3/08 ,  F01N3/18 ,  F01N3/20 ,  F01N3/24 ,  F02D21/08 ,  F01N5/00

CPC分类号： F01N3/2013 ,  F01N3/20 ,  F01N2240/26 ,  F02M26/15 ,  F02M26/37 ,  Y02T10/26

摘要： An exhaust gas collecting apparatus, of an internal combustion engine including a collection vessel that can hold exhaust gas, an exhaust gas taking-out passage through which exhaust gas is introduced from an exhaust passage to the collection vessel, an exhaust gas introduction passage through which the exhaust gas is introduced from the collection vessel to the exhaust passage at a position upstream from the catalytic converter, a first valve that is switchable between a position where the introduction of the exhaust gas from the exhaust passage to the exhaust gas taking-out passage is permitted and a position where the introduction of the exhaust gas is prevented, and a second valve that is switchable between a position where the introduction of the exhaust gas through the exhaust gas introduction passage is permitted and a position where the introduction of the exhaust gas is prevented.

摘要翻译： 一种内燃机的废气收集装置，包括可容纳废气的收集容器，排气从废气通道引入到收集容器的废气取出通道，排气导入通道， 废气从催化转化器上游的位置从收集容器引入排气通道，第一阀可在从排气通道排出到废气取出通道的位置 并且能够防止排气的引入的位置，以及可以在允许通过排气导入通道引入排气的位置和排气的引入位置之间切换的第二阀 被阻止

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。