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公开(公告)号：US08834802B2
公开(公告)日：2014-09-16
申请号：US13389486
申请日：2011-02-14
申请人： Yoshihisa Tsukamoto , Hiromasa Nishioka , Katsuhiko Oshikawa , Hiroshi Otsuki , Junichi Matsuo , Shigeki Nakayama
发明人： Yoshihisa Tsukamoto , Hiromasa Nishioka , Katsuhiko Oshikawa , Hiroshi Otsuki , Junichi Matsuo , Shigeki Nakayama
CPC分类号： B01D53/9431 , B01D53/9418 , B01D2255/104 , B01D2255/2092 , B01D2255/91 , B01D2255/912 , B01D2257/404 , B01D2258/012 , F01N3/0814 , F01N3/0842 , F01N3/2013 , F01N3/2066 , F01N9/00 , F01N2240/14 , F01N2370/02 , F01N2900/1602 , Y02C20/10 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： An exhaust purification system of an internal combustion engine of the present invention comprises a silver-alumina-based catalyst device arranged in the engine exhaust system. When a temperature of the silver-alumina-based catalyst device becomes a second set temperature T2 lower than a first set temperature T1 at which the silver-alumina-based catalyst device releases NO2, and releases NO, the silver-alumina-based catalyst device is heated such that a temperature elevation rate thereof is increased to make the temperature T of the silver-alumina-based catalyst device be a third set temperature T3 between the first set temperature T1 and the second set temperature T2.
摘要翻译： 本发明的内燃机的排气净化系统包括布置在发动机排气系统中的银 - 氧化铝基催化剂装置。 当银 - 氧化铝基催化剂装置的温度变为低于银 - 氧化铝基催化剂装置释放NO 2的第一设定温度T1并且释放NO的第二设定温度T2时，银 - 氧化铝基催化剂装置 被加热使得其升温速率增加，使得银 - 氧化铝基催化剂装置的温度T在第一设定温度T1和第二设定温度T2之间的第三设定温度T3。
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公开(公告)号：US08695399B2
公开(公告)日：2014-04-15
申请号：US13255009
申请日：2009-12-09
IPC分类号： G01N7/00
CPC分类号： G01N33/0042 , F02D41/028 , F02D41/1444 , F02D2200/0818 , G01N25/4873 , Y02A50/248
摘要： The present detector for detecting sulfur components includes a storage portion for storing SOx and NOx in the exhaust gas passing through an exhaust passage, in which the more an amount of stored SOx increases, the more an amount of NOx that can be stored decreases, estimates the amount of stored SOx on the basis of an amount of NOx stored in the storage portion, and detects an integrated amount of SOx passing through the exhaust passage during a given period or an value on the basis of the integrated amount. In the present detector, the estimating of the amount of stored SOx for detecting the integrated amount of SOx or the value on the basis of the integrated amount is prohibited when a current amount of NOx that can be stored is not stored in the storage portion.
摘要翻译： 用于检测硫成分的本检测器包括用于在通过排气通道的排气中存储SO x和NO x的储存部分，其中储存的SO x的量越多，可以存储的NOx的量越多，估计 基于存储在存储部中的NOx的量存储的SO x的量，并且根据积分量检测在给定期间内通过排气通道的SO x的积分量或值。 在本检测器中，当可以存储的当前的NOx量不存储在存储部分中时，禁止基于积分量来检测SOx的积分量的存储的SOx的量的估计值或基于积分值的值的估计。
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公开(公告)号：US20120279278A1
公开(公告)日：2012-11-08
申请号：US13255009
申请日：2009-12-09
IPC分类号： G01N7/00
CPC分类号： G01N33/0042 , F02D41/028 , F02D41/1444 , F02D2200/0818 , G01N25/4873 , Y02A50/248
摘要： The present detector for detecting sulfur components includes a storage portion for storing SOx and NOx in the exhaust gas passing through an exhaust passage, in which the more an amount of stored SOx increases, the more an amount of NOx that can be stored decreases, estimates the amount of stored SOx on the basis of an amount of NOx stored in the storage portion, and detects an integrated amount of SOx passing through the exhaust passage during a given period or an value on the basis of the integrated amount. In the present detector, the estimating of the amount of stored SOx for detecting the integrated amount of SOx or the value on the basis of the integrated amount is prohibited when a current amount of NOx that can be stored is not stored in the storage portion.
摘要翻译： 用于检测硫成分的本检测器包括用于在通过排气通道的排气中存储SO x和NO x的储存部分，其中储存的SO x的量越多，可以存储的NOx的量越多，估计 基于存储在存储部中的NOx的量存储的SO x的量，并且根据积分量检测在给定期间内通过排气通道的SO x的积分量或值。 在本检测器中，当可以存储的当前的NOx量不存储在存储部分中时，禁止基于积分量来检测SOx的积分量的存储的SOx的量的估计值或基于积分值的值的估计。
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公开(公告)号：US20120144807A1
公开(公告)日：2012-06-14
申请号：US12677249
申请日：2009-03-31
申请人： Yuichi Sobue , Kohei Yoshida , Hiroshi Otsuki , Masahide IIda , Itsuya Kurisaka , Ko Sugawara
发明人： Yuichi Sobue , Kohei Yoshida , Hiroshi Otsuki , Masahide IIda , Itsuya Kurisaka , Ko Sugawara
IPC分类号： F01N3/18
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/085 , F01N3/0885 , F01N2570/04 , F01N2900/1612 , F02D41/028 , F02D41/1446 , F02D2200/0818
摘要： The present invention is intended to improve a SOx reduction rate which is a ratio of an amount of SOx reduction with respect to an amount of SOx occlusion in SOx poisoning recovery processing. In the present invention, in the SOx poisoning recovery processing in which the SOx occluded in an NOx storage reduction catalyst is reduced by decreasing the air fuel ratio of an exhaust gas flowing into the NOx storage reduction catalyst to a predetermined air fuel ratio in a repeated manner, the length of a period in which the air fuel ratio of an exhaust gas flowing into the NOx storage reduction catalyst is decreased is made longer in a relatively early time during the processing than in a relatively late time during the processing.
摘要翻译： 本发明旨在提高SOx还原速率，SOx还原速率是SOx中毒恢复处理中SO x还原量相对于SOx吸收量的比例。 在本发明中，在通过将流入NOx吸留还原催化剂的废气的空燃比减少到规定的空燃比来减少NOx吸留还原催化剂中的SO x的SOx中毒恢复处理中， 在处理期间相对较早的时间内，流入NOx储存还原催化剂的排气的空燃比减少的时间段的长度比处理期间相对较晚的时间长。
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公开(公告)号：US08650863B2
公开(公告)日：2014-02-18
申请号：US12677249
申请日：2009-03-31
申请人： Yuichi Sobue , Kohei Yoshida , Hiroshi Otsuki , Masahide Iida , Itsuya Kurisaka , Ko Sugawara
发明人： Yuichi Sobue , Kohei Yoshida , Hiroshi Otsuki , Masahide Iida , Itsuya Kurisaka , Ko Sugawara
IPC分类号： F01N3/00
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/085 , F01N3/0885 , F01N2570/04 , F01N2900/1612 , F02D41/028 , F02D41/1446 , F02D2200/0818
摘要： The present invention is intended to improve a SOx reduction rate which is a ratio of an amount of SOx reduction with respect to an amount of SOx occlusion in SOx poisoning recovery processing. In the present invention, in the SOx poisoning recovery processing in which the SOx occluded in an NOx storage reduction catalyst is reduced by decreasing the air fuel ratio of an exhaust gas flowing into the NOx storage reduction catalyst to a predetermined air fuel ratio in a repeated manner, the length of a period in which the air fuel ratio of an exhaust gas flowing into the NOx storage reduction catalyst is decreased is made longer in a relatively early time during the processing than in a relatively late time during the processing.
摘要翻译： 本发明旨在提高SOx还原速率，SOx还原速率是SOx中毒恢复处理中SO x还原量相对于SOx吸收量的比例。 在本发明中，在通过将流入NOx吸留还原催化剂的废气的空燃比减少到规定的空燃比来减少NOx吸留还原催化剂中的SO x的SOx中毒恢复处理中， 在处理期间相对较早的时间内，流入NOx储存还原催化剂的排气的空燃比减少的时间段的长度比处理期间相对较晚的时间长。
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公开(公告)号：US09394816B2
公开(公告)日：2016-07-19
申请号：US14388315
申请日：2012-03-30
CPC分类号： F01N3/035 , B01D46/2429 , B01D2046/2437 , F01N3/022 , F01N3/0222 , F01N3/0232 , F01N3/103 , F01N2330/06 , F01N2330/60 , F01N2510/0682
摘要： An object of the invention is to suppress deposition of ash in a wall-flow particulate filter while curtailing drops in a trapping rate of PM. To attain the above object, the invention provides a wall-flow particulate filter delimited by porous partition walls having pores of a size that allows ash and ash aggregates to pass therethrough. In the filter, a coat layer having pores smaller than the pores of the partition walls is provided, at a region of the partition walls, from an upstream end thereof up to a position before a downstream end thereof.
摘要翻译： 本发明的一个目的是抑制灰尘沉积在壁流微粒过滤器中，同时降低PM的捕获速率。 为了实现上述目的，本发明提供一种由多孔分隔壁界定的壁流微粒过滤器，其具有允许灰分和灰分聚集体通过的尺寸的孔。 在过滤器中，在分隔壁的一个区域，从其上游端到其下游端之前的位置设置有比分隔壁的孔小的孔的涂层。
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公开(公告)号：US20150167518A1
公开(公告)日：2015-06-18
申请号：US14413777
申请日：2012-07-12
CPC分类号： F01N3/035 , B01D53/944 , B01D2046/2437 , B01D2255/9155 , B01D2255/9205 , F01N3/0222 , F01N3/0232 , F01N3/0253 , F01N9/002 , F01N11/00 , F01N11/002 , F01N2240/38 , F01N2250/02 , F01N2510/0682 , F01N2550/04 , F01N2560/05 , F01N2560/08 , F01N2610/03 , F01N2900/0412 , F01N2900/0418 , F01N2900/1402 , F01N2900/1406 , F01N2900/1606 , F02D41/0055 , F02D41/029 , F02D2200/0812 , Y02T10/47
摘要： A particulate filter arranged in an engine exhaust passage is provided with alternately arranged exhaust gas inflow and outflow passages and porous partition walls which separate these passages from each other. In each partition wall, a coated zone where a coated layer with an average pore size smaller than that of a partition wall substrate is used to cover the substrate surface and a non-coated zone downstream of the coated zone where the substrate surface is not covered by said coated layer, are defined, and the ash in the exhaust gas can pass through the partition wall in the non-coated zone. Judgment processing which judges if a particulate matter trapping rate of the particulate filter has fallen below an allowable lower limit value is performed. PM removal processing is performed when it is judged that the particulate matter trapping rate has fallen below the allowable lower limit value.
摘要翻译： 布置在发动机排气通道中的颗粒过滤器设置有交替布置的废气流入和流出通道和将这些通道彼此分离的多孔分隔壁。 在每个分隔壁中，使用平均孔径小于分隔壁基底的涂层的涂覆区域覆盖基底表面和未涂覆基底表面的涂覆区域下游的未涂覆区域 通过所述涂层被限定，并且废气中的灰分可以通过非涂覆区域中的分隔壁。 判断微粒过滤器的颗粒物捕获率是否已经低于容许下限值的判定处理。 当判断为颗粒物质捕获率已经下降到允许的下限值以下时，进行PM去除处理。
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公开(公告)号：US09718026B2
公开(公告)日：2017-08-01
申请号：US14647614
申请日：2012-11-28
申请人： Hiroshi Otsuki , Hiromasa Nishioka , Yoshihisa Tsukamoto , Daichi Imai , Kazuhiro Itoh , Ryota Koutake
发明人： Hiroshi Otsuki , Hiromasa Nishioka , Yoshihisa Tsukamoto , Daichi Imai , Kazuhiro Itoh , Ryota Koutake
IPC分类号： B01D50/00 , B01D53/94 , F01N3/035 , F01N3/022 , B01J35/00 , B01J23/40 , B01J35/02 , B01J35/04 , B01J35/10 , B01D46/24
CPC分类号： B01D53/94 , B01D46/2466 , B01D2046/2437 , B01J23/40 , B01J35/0006 , B01J35/023 , B01J35/04 , B01J35/10 , B01J35/1061 , B01J35/1066 , F01N3/0222 , F01N3/035 , F01N2510/0682
摘要： An exhaust gas purification filter that is suitable for arrangement in an exhaust passage of an internal combustion engine and for collecting particulate matter contained in exhaust gas, comprises: exhaust gas inflow passages and exhaust gas outflow passages that are arranged alternately; and porous partitions that separate the exhaust gas inflow passages and the exhaust gas outflow passages from each other. Each of the partitions is divided into a coated zone in which a surface of a partition base is coated with a coating layer having a smaller average pore diameter than an average pore diameter of the partition base and a non-coated zone that is located on a downstream side of the coated zone and in which a surface of the partition base is not coated with the coating layer.
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公开(公告)号：US09255505B2
公开(公告)日：2016-02-09
申请号：US14413777
申请日：2012-07-12
IPC分类号： F01N3/022 , F01N3/035 , F01N11/00 , F02D41/02 , F01N9/00 , F01N3/025 , F02D41/00 , B01D53/94 , F01N3/023
CPC分类号： F01N3/035 , B01D53/944 , B01D2046/2437 , B01D2255/9155 , B01D2255/9205 , F01N3/0222 , F01N3/0232 , F01N3/0253 , F01N9/002 , F01N11/00 , F01N11/002 , F01N2240/38 , F01N2250/02 , F01N2510/0682 , F01N2550/04 , F01N2560/05 , F01N2560/08 , F01N2610/03 , F01N2900/0412 , F01N2900/0418 , F01N2900/1402 , F01N2900/1406 , F01N2900/1606 , F02D41/0055 , F02D41/029 , F02D2200/0812 , Y02T10/47
摘要： A particulate filter arranged in an engine exhaust passage is provided with alternately arranged exhaust gas inflow and outflow passages and porous partition walls which separate these passages from each other. In each partition wall, a coated zone where a coated layer with an average pore size smaller than that of a partition wall substrate is used to cover the substrate surface and a non-coated zone downstream of the coated zone where the substrate surface is not covered by said coated layer, are defined, and the ash in the exhaust gas can pass through the partition wall in the non-coated zone. Judgment processing which judges if a particulate matter trapping rate of the particulate filter has fallen below an allowable lower limit value is performed. PM removal processing is performed when it is judged that the particulate matter trapping rate has fallen below the allowable lower limit value.
摘要翻译： 布置在发动机排气通道中的颗粒过滤器设置有交替布置的废气流入和流出通道和将这些通道彼此分离的多孔分隔壁。 在每个分隔壁中，使用平均孔径小于分隔壁基底的涂层的涂覆区域覆盖基底表面和未涂覆基底表面的涂覆区域下游的未涂覆区域 通过所述涂层被限定，并且废气中的灰分可以通过非涂覆区域中的分隔壁。 判断微粒过滤器的颗粒物捕获率是否已经低于容许下限值的判定处理。 当判断为颗粒物质捕获率已经下降到允许的下限值以下时，进行PM去除处理。
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公开(公告)号：US20150059321A1
公开(公告)日：2015-03-05
申请号：US14388315
申请日：2012-03-30
CPC分类号： F01N3/035 , B01D46/2429 , B01D2046/2437 , F01N3/022 , F01N3/0222 , F01N3/0232 , F01N3/103 , F01N2330/06 , F01N2330/60 , F01N2510/0682
摘要： An object of the invention is to suppress deposition of ash in a wall-flow particulate filter while curtailing drops in a trapping rate of PM. To attain the above object, the invention provides a wall-flow particulate filter delimited by porous partition walls having pores of a size that allows ash and ash aggregates to pass therethrough. In the filter, a coat layer having pores smaller than the pores of the partition walls is provided, at a region of the partition walls, from an upstream end thereof up to a position before a downstream end thereof.
摘要翻译： 本发明的一个目的是抑制灰尘沉积在壁流微粒过滤器中，同时降低PM的捕获速率。 为了实现上述目的，本发明提供一种由多孔分隔壁界定的壁流微粒过滤器，其具有允许灰分和灰分聚集体通过的尺寸的孔。 在过滤器中，在分隔壁的一个区域，从其上游端到其下游端之前的位置设置有比分隔壁的孔小的孔的涂层。
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