公开(公告)号：US20120017587A1

公开(公告)日：2012-01-26

申请号：US13257487

申请日：2009-04-10

申请人： Kohei Yoshida ,  Takamitsu Asanuma ,  Akinori Morishima ,  Mikio Inoue

发明人： Kohei Yoshida ,  Takamitsu Asanuma ,  Akinori Morishima ,  Mikio Inoue

IPC分类号： F02D23/00 ,  F01N3/18

CPC分类号： F01N3/0871 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/0857 ,  F01N3/0878 ,  F01N3/101 ,  F01N9/00 ,  F01N13/009 ,  F01N2410/12 ,  F01N2610/03 ,  F01N2900/1602 ,  F02B37/18 ,  Y02T10/144 ,  Y02T10/22 ,  Y02T10/47

摘要： A control system of an internal combustion engine which arranges in an engine exhaust passage an exhaust turbine of an exhaust driven type supercharger, arranges in the exhaust passage downstream of the exhaust turbine an exhaust purification catalyst connects the exhaust passage between the exhaust purification catalyst and the exhaust turbine with the exhaust passage upstream of the exhaust turbine by a bypass passage, arranges in the bypass passage a storing agent which stores a specific ingredient in the exhaust, and is provided with an exhaust gas flow switching device which selectively switches the exhaust gas flow between a flow which flows through the exhaust turbine into the exhaust purification catalyst and a flow which flows through the bypass passage into the exhaust purification catalyst.

摘要翻译： 一种内燃机的控制系统，其在发动机排气通路中配置排气驱动型增压器的排气涡轮，在排气涡轮机的下游配置排气通路，排气净化催化剂将排气净化催化剂和排气净化催化剂之间的排气通路 排气涡轮机，其排气通道通过旁通通道在排气涡轮机的上游，在旁通通道中布置有在排气中存储特定成分的储存剂，并且设置有排气流切换装置，其选择性地切换废气流 在排气涡轮机流入排气净化催化剂的流动和流过旁通通路的流入排气净化催化剂之间。

公开(公告)号：US09017614B2

公开(公告)日：2015-04-28

申请号：US13259574

申请日：2010-12-06

申请人： Yoshihisa Tsukamoto ,  Hiromasa Nishioka ,  Kohei Yoshida ,  Yuki Bisaiji ,  Junichi Matsuo ,  Takamitsu Asanuma

发明人： Yoshihisa Tsukamoto ,  Hiromasa Nishioka ,  Kohei Yoshida ,  Yuki Bisaiji ,  Junichi Matsuo ,  Takamitsu Asanuma

IPC分类号： B01D53/00 ,  B01D53/56 ,  F01N3/00 ,  B01D53/94 ,  F01N3/021 ,  F01N3/08 ,  F01N9/00 ,  F01N13/00

CPC分类号： B01D53/9431 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2258/012 ,  F01N3/021 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/00 ,  F01N13/009 ,  F01N2240/30 ,  F01N2510/0684 ,  F01N2610/03 ,  F01N2900/0601 ,  F01N2900/1602 ,  F01N2900/1626 ,  Y02T10/24 ,  Y02T10/47

摘要： In an internal combustion engine, inside of an engine exhaust passage, an NOx adsorption part and an NOx purification part are arranged. The NOx purification part has the property of reducing NOx which is contained in exhaust gas if the concentration of hydrocarbons is made to vibrate by within a predetermined range of amplitude and within a predetermined range of period. When NOx is to be desorbed from the NOx adsorption part, the current NOx which is contained in the exhaust gas and the NOx which is desorbed from the NOx adsorption part are reduced by making the concentration of hydrocarbons of the NOx purification part vibrate by the amplitude and period which are set for the current engine operating state, at least of which (ΔT·k) has been corrected so that the amount of hydrocarbons becomes greater.

摘要翻译： 在内燃机中，配置发动机排气通路内部的NOx吸附部和NOx净化部。 如果使碳氢化合物的浓度在预定的振幅范围内并在预定的周期范围内振动，则NOx净化部具有还原废气中所含的NOx的性质。 当NOx从NOx吸附部分脱附时，通过使NOx净化部的烃浓度振动振幅来减少废气中所含的电流NOx和从NOx吸附部脱离的NOx 和对于当前发动机运转状态设定的时间段，其中至少（＆Dgr; T·k）已被校正，使得烃的量变大。

公开(公告)号：US20110203260A1

公开(公告)日：2011-08-25

申请号：US13124767

申请日：2009-11-02

申请人： Kazuhiro Umemoto ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Yuka Nakata ,  Takamitsu Asanuma

发明人： Kazuhiro Umemoto ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Yuka Nakata ,  Takamitsu Asanuma

IPC分类号： F01N3/035 ,  F01N3/10 ,  F02M25/06

CPC分类号： F02D41/0275 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/103 ,  F01N13/009 ,  F01N2570/145 ,  F02B37/00 ,  F02D41/0055 ,  F02D41/402 ,  F02D2041/0015 ,  F02D2200/0802 ,  F02D2250/36 ,  Y02A50/2344 ,  Y02C20/10

摘要： An exhaust purification system of an internal combustion engine arranging in an engine exhaust passage an NOx storing reducing catalyst storing NOx contained in exhaust gas when an air-fuel ratio of inflowing exhaust gas is lean and reducing and purifying stored NOx when the air-fuel ratio of the inflowing exhaust gas becomes a stoichiometric air-fuel ratio or rich, which system is provided with an NOx production reducing means for reducing an amount of production of NOx produced in a combustion chamber due to change of a combustion state of the engine and temporarily reduces the amount of production of NOx by the NOx production reducing means when an amount of N2O flowing out from the NOx storing reducing catalyst is anticipated to exceed an allowable amount.

摘要翻译： 一种内燃机的排气净化系统，其在发动机排气通路中配置NOx吸留还原催化剂，所述NOx吸留还原催化剂在所述排出气体的空燃比为稀的情况下存储废气中所含的NOx，并且当所述空燃比 流入的废气成为化学计量空燃比或浓度，该系统设置有NOx生成减少装置，用于减少由于发动机的燃烧状态的变化和暂时地在燃烧室中产生的NOx的产生量 当从NOx存储还原催化剂流出的N2O的量被预计超过允许量时，通过NOx生成减少装置来减少NOx的产生量。

公开(公告)号：US20100257847A1

公开(公告)日：2010-10-14

申请号：US12599212

申请日：2008-07-11

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

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

IPC分类号： F01N9/00 ,  F01N3/035

CPC分类号： F01N3/0814 ,  B01D46/006 ,  B01D46/42 ,  B01D53/9422 ,  B01D53/9477 ,  B01D53/949 ,  B01D2255/915 ,  B01D2257/302 ,  B01D2279/30 ,  F01N3/0253 ,  F01N3/0807 ,  F01N3/085 ,  F01N3/0885 ,  F01N13/009 ,  F01N2250/14 ,  F01N2570/04 ,  F01N2610/03

摘要： In the present exhaust purification system of an internal combustion engine, a particulate filter is arranged downstream of an NOx storage/reduction catalyst device and an S trap device is arranged upstream of the NOx storage/reduction catalyst device. A first fuel supplying means for supplying additional fuel for regeneration of the particulate filter to the exhaust system upstream of the S trap device or into the cylinder is provided. An amount of the additional fuel supplied by the first fuel supplying means is controlled to make the S trap device not release SOx. A second fuel supplying means is provided in the exhaust system between the NOx storage/reduction catalyst device and the particulate filter to make up for a deficiency of the additional fuel supplied by the first fuel supplying means in the regeneration treatment of the particulate filter.

摘要翻译： 在本发明的内燃机的排气净化系统中，在NOx吸留还原催化剂装置的下游配置微粒过滤器，在NOx吸留还原催化剂装置的上游配置有S阱装置。 提供第一燃料供给装置，用于向颗粒过滤器再生的附加燃料供给到S捕集装置上游的排气系统或气缸。 控制由第一燃料供应装置供应的附加燃料的量使得S捕集装置不释放SOx。 第二燃料供给装置设置在NOx存储/还原催化剂装置和微粒过滤器之间的排气系统中，以弥补由微粒过滤器的再生处理中由第一燃料供给装置供应的附加燃料的不足。

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。

公开(公告)号：US20100071347A1

公开(公告)日：2010-03-25

申请号：US12450231

申请日：2008-08-26

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

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

IPC分类号： F01N11/00 ,  F01N9/00 ,  F01N3/10

CPC分类号： F01N3/0814 ,  B01D53/9418 ,  B01D53/9422 ,  B01D2251/2062 ,  B01D2255/1021 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/91 ,  B01D2255/911 ,  B01D2257/404 ,  B01D2258/012 ,  F01N3/0842 ,  F01N3/2073 ,  F01N3/208 ,  F01N13/009 ,  F01N2240/18 ,  F01N2240/25 ,  F01N2250/12 ,  F01N2430/06 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1614 ,  F01N2900/1622 ,  F02D41/0275 ,  F02D2041/1469 ,  F02D2250/36 ,  Y02A50/2344 ,  Y02T10/24

摘要： An internal combustion engine wherein an NOx storing catalyst is arranged in an engine exhaust passage and an NOx selective reducing catalyst is arranged downstream of the NOx storing catalyst. Just before the air-fuel ratio of the exhaust gas flowing into the NOx storing catalyst is temporarily switched from lean to rich to release NOx from the NOx storing catalyst, an amount of NOx necessary for removing ammonia adsorbed on the NOx selective reducing catalyst is fed to the NOx selective reducing catalyst under a lean air-fuel ratio.

摘要翻译： 一种内燃机，其特征在于，在所述NOx吸留催化剂的下游配置有NOx吸留催化剂，所述NOx吸留催化剂配置在发动机排气通路中，所述NOx选择还原催化剂配置在所述NOx吸留催化剂的下游。 在流入NOx吸留催化剂的废气的空燃比暂时从稀释至浓缩以从NOx吸留催化剂释放NOx之前，进行吸附在NOx选择还原催化剂上的除去氨所需的NOx量 在稀空燃比下与NOx选择还原催化剂接触。

公开(公告)号：US20090241638A1

公开(公告)日：2009-10-01

申请号：US12377039

申请日：2008-06-30

申请人： Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

发明人： Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

IPC分类号： G01N1/22

CPC分类号： G01N33/287 ,  F01N2560/027 ,  G01N33/0042 ,  Y02A50/248

摘要： A metal compound (50) able to trap a sulfur component in exhaust gas is arranged in a flow path of the exhaust gas, a property of the metal compound (50) changing along with an increase of the amount of sulfur component trapped at the metal compound (50) is measured, and the cumulative value of the amount of SOX actually contained in the exhaust gas is calculated from the measured property. On the other hand, the assumed cumulative value of the amount of SOx, assumed to be contained in the exhaust gas when assuming that fuel or oil of a sulfur concentration assumed in advance is used, is calculated. It is judged if fuel or oil with a high sulfur concentration is being used from the actual cumulative value of the amount of SOX and the assumed cumulative value of the amount of SOx.

摘要翻译： 排气中的硫成分的金属化合物（50）配置在废气的流路中，金属化合物（50）的特性随着金属中被捕获的硫成分的量的增加而变化 测量化合物（50），并根据测定的性质计算废气中实际含有的SOX量的累积值。 另一方面，假设假设使用预先假设的硫浓度的燃料或油的假定在废气中包含的SO x的量的假定累积值。 根据SOX量的实际累积值和SOx量的假定累计值判断是否使用了高硫浓度的燃料或油。

公开(公告)号：US20090038291A1

公开(公告)日：2009-02-12

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： F01N3/20

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：US20080302090A1

公开(公告)日：2008-12-11

申请号：US12155382

申请日：2008-06-03

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

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

IPC分类号： F01N3/20 ,  F01N3/28

CPC分类号： F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2510/06 ,  F01N2510/0684 ,  F01N2570/04 ,  F01N2610/03

摘要： An SOX trap catalyst 12 and NOX purification catalyst 13 are arranged in an engine exhaust passage. A substrate 50 of the NOX purification catalyst 13 is formed with a coat layer comprised of at least the two layers of an upper coat layer 51 and a lower coat layer 52. The lower coat layer 52 is formed from an NOX storage catalyst storing the NOX contained in the exhaust gas when the air-fuel ratio of the exhaust gas is lean and releasing the stored NOX when the air-fuel ratio of the exhaust gas is a stoichiometric air-fuel ratio or rich. The upper coat layer 51 is formed from a material of a weaker basicity than this NOX storage catalyst.

摘要翻译： 在发动机排气通道中设置有SO x捕集催化剂12和NO x净化催化剂13。 NO x净化催化剂13的基板50由至少两层上涂层51和下涂层52构成的涂层形成。下涂层52由储存有NOX的NO x储存催化剂形成 当排气的空燃比为稀的时，排气中的废气中含有的废气中的空气燃料比为理论空燃比或浓，释放储存的NO x。 上涂层51由比该NO x储存催化剂的碱性弱的材料形成。

公开(公告)号：US09199197B2

公开(公告)日：2015-12-01

申请号：US12087509

申请日：2007-09-06

申请人： Kohei Yoshida ,  Yasuaki Nakano ,  Tadashi Watanabe ,  Kotaro Hayashi ,  Takamitsu Asanuma

发明人： Kohei Yoshida ,  Yasuaki Nakano ,  Tadashi Watanabe ,  Kotaro Hayashi ,  Takamitsu Asanuma

IPC分类号： F01N3/28 ,  B01D53/94 ,  F01N3/08 ,  F01N13/00

CPC分类号： B01D53/9422 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N13/009 ,  F01N13/0093 ,  Y02C20/10

摘要： A fuel addition valve that adds fuel into the exhaust gas passage of the engine in the form of fine fuel droplets, an upstream NOx adsorption-reduction catalyst, and a downstream NOx adsorption-reduction catalyst are arranged in this order. Platinum Pt and palladium Pd, as noble metal, are supported on the downstream NOx adsorption-reduction NOx catalyst such that the ratio of the mole number of the platinum Pt to the sum of the mole numbers of the platinum Pt and the palladium Pd is approx. 50% to approx. 80%. Only platinum Pt is supported on the upstream NOx adsorption-reduction catalyst. According to this structure, even when liquid fuel is supplied into exhaust gas, NOx can be effectively released from the NOx adsorption-reduction catalyst, and further the amount of NOx that the NOx adsorption-reduction catalyst can adsorb at a low temperature increases.

摘要翻译： 按照该顺序排列燃料添加阀，其将燃料添加到发动机的废气通道中，其形式为精细的燃料液滴，上游的NOx吸附还原催化剂和下游的NOx吸附还原催化剂。 作为贵金属的铂Pt和钯Pd负载在下游NOx吸附还原NOx催化剂上，使得铂Pt的摩尔数与铂Pt和钯Pd的摩尔数的和的比率约为 。 50％〜约 80％。 在上游NOx吸附还原催化剂上仅负载铂Pt。 根据该结构，即使向排气供给液体燃料，也可以从NOx吸附还原催化剂中有效地释放NOx，并且进一步降低NOx吸附还原催化剂在低温下吸附的NOx量。