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1.发明授权公开(公告)号：US07685812B2
公开(公告)日：2010-03-30
申请号：US10537748
申请日：2004-10-04
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。
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2.发明授权公开(公告)号：US07146800B2
公开(公告)日：2006-12-12
申请号：US10865875
申请日：2004-06-14
IPC分类号： F01N3/00
CPC分类号： F02D41/062 , F01N3/0231 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/0871 , F01N2610/03 , F02B37/00 , F02B2275/14 , F02D41/0057 , F02D41/025 , F02D41/0275 , F02D41/028 , F02D41/029 , F02D41/403 , F02D2250/36 , F02M26/05 , F02M26/16 , F02M26/23 , Y02T10/123 , Y02T10/26
摘要： An exhaust purification device, including a NOx storing catalyst comprised of a precious metal catalyst and NOx absorbent, arranged in an engine exhaust passage, which increases the ratio of the nitrogen dioxide to the nitrogen monoxide produced when burning fuel under a lean air-fuel ratio when the NOx storing catalyst is not active compared with the time when the NOx storing catalyst is active under the same engine operating conditions and stores the nitrogen dioxide contained in the exhaust gas in the NOx absorbent at that time.
摘要翻译： 一种排气净化装置，其包括设置在发动机排气通道中的由贵金属催化剂和NO x吸收剂构成的NO x x存储催化剂，其增加氮的比例 当储存催化剂的NO x存储催化剂不起作用时，与惰性空气燃料比燃烧燃料时产生的一氧化氮相比，当NO x x存储催化剂为 在相同的发动机工作条件下起作用，并将废气中所含的二氧化氮储存在NO x吸收剂中。
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3.发明申请公开(公告)号：US20060037312A1
公开(公告)日：2006-02-23
申请号：US10537748
申请日：2004-10-04
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。
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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
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。
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公开(公告)号：US08341941B2
公开(公告)日：2013-01-01
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： F01N3/20
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。
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公开(公告)号：US06955041B2
公开(公告)日：2005-10-18
申请号：US10090781
申请日：2002-03-06
申请人： Shinichi Takeshima , Shinya Hirota , Kazuhiro Itoh , Takamitsu Asanuma , Yasuaki Nakano , Kohei Yoshida
发明人： Shinichi Takeshima , Shinya Hirota , Kazuhiro Itoh , Takamitsu Asanuma , Yasuaki Nakano , Kohei Yoshida
IPC分类号： F01N3/02 , B01D39/14 , B01D53/94 , B01J19/08 , C01B13/02 , F01N3/023 , F01N3/08 , F01N3/10 , F01N3/24 , F01N3/28 , F01N9/00 , F01N11/00 , F01N3/00
CPC分类号： F01N3/0842 , B01D53/9431 , B01D2259/818 , F01N3/0231 , F01N3/0814 , F01N3/0821 , F01N3/0871 , F01N3/0892 , F01N9/00 , F01N11/00 , F01N2240/28 , F01N2560/028 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine, wherein the efficiency of exhaust gas purification is enhanced by optimally controlling the operating condition of a plasma generator mounted in an exhaust passage in accordance with the exhaust gas atmosphere. The exhaust gas purifying apparatus includes a detection unit for detecting exhaust water content and exhaust temperature; and a control unit for controlling at least one of two factors, frequency or voltage of an AC voltage used to operate the plasma generator mounted in the exhaust passage, in accordance with the detected exhaust water content and exhaust temperature.
摘要翻译： 一种用于内燃机的废气净化装置，其中通过根据废气气氛优化地控制安装在排气通道中的等离子体发生器的运行状态来提高废气净化的效率。 废气净化装置具有检测废气含量和废气温度的检测单元， 以及控制单元，用于根据检测到的废水含量和排气温度来控制用于操作安装在排气通道中的等离子体发生器的AC电压的频率或电压的两个因素中的至少一个。
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公开(公告)号：US20070277513A1
公开(公告)日：2007-12-06
申请号：US11660518
申请日：2006-08-09
IPC分类号： F01N3/10
CPC分类号： B01D53/9422 , B01D2251/208 , B01D2255/1021 , B01D2255/1023 , B01D2255/904 , B01D2255/915 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/0864 , F01N3/103 , F01N3/2033 , F01N13/009 , F02B37/00 , Y02T10/26
摘要： An engine exhaust passage is provided with a fuel addition valve (14) for adding fuel in the form of atomized drops, an oxidation catalyst (11), and an NOx storage and reduction catalyst (12) in that order. The oxidation catalyst (11) carries as a precious metal not only platinum Pt, but also palladium Pd. A molar ratio of the platinum Pt with respect to the sum of the platinum Pt and palladium Pd carried on the oxidation catalyst (11) is set to between about 50 percent to about 80 percent.
摘要翻译： 发动机排气通道设置有用于以雾化液滴的形式添加燃料的燃料添加阀（14），氧化催化剂（11）和NO x x储存和还原催化剂（12） 那个订单。 氧化催化剂（11）不仅携带铂铂，而且还载钯钯作为贵金属。 将铂Pt相对于载持在氧化催化剂（11）上的铂Pt和钯Pd的总和的摩尔比设定在约50％至约80％之间。
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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
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。
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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。
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公开(公告)号：US20080302090A1
公开(公告)日：2008-12-11
申请号：US12155382
申请日：2008-06-03
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。
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