-
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。
-
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。
-
公开(公告)号:US20140216016A1
公开(公告)日:2014-08-07
申请号:US14127355
申请日:2012-06-29
申请人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
发明人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
IPC分类号: F01N3/023
CPC分类号: F01N3/023 , B01D41/00 , B01D46/00 , B01D46/006 , B01D46/0061 , B01D46/2418 , B01D46/32 , B01D53/64 , B01D53/82 , B01D2257/302 , B01D2259/40083 , B01D2279/30 , F01N3/00 , F01N3/021 , F01N3/022 , F01N3/0222 , F01N3/0232 , F01N3/035 , F01N3/085
摘要: A wall flow type particulate filter is arranged inside the exhaust passage of an internal combustion engine where combustion is performed under an excess of oxygen. The particulate filter carries a solid acid. The solid acid has an acid strength which is higher than the acid strength of sulfurous acid and lower than the acid strength of sulfuric acid. To remove the ash from the particulate filter, ash atomization processing for rendering the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature is temporarily performed.
摘要翻译: 壁流式微粒过滤器布置在内燃机的排气通道内部,其中在过量的氧气下进行燃烧。 颗粒过滤器携带固体酸。 固体酸的酸强度高于亚硫酸的酸强度,低于硫酸的酸强度。 为了从颗粒过滤器除去灰分,临时进行用于使微粒过滤器的状态为灰尘雾化处理的状态,其中流入颗粒过滤器的废气的浓度降低,并且微粒过滤器的温度升高。
-
公开(公告)号:US09080480B2
公开(公告)日:2015-07-14
申请号:US14127355
申请日:2012-06-29
申请人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
发明人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
IPC分类号: B01D50/00 , B01D24/00 , B01D39/06 , B01D39/20 , B01D39/14 , F01N3/023 , B01D46/24 , B01D46/00 , F01N3/022 , F01N3/035 , F01N3/021 , B01D46/32 , B01D53/64 , F01N3/08 , B01D41/00 , B01D53/82 , F01N3/00
CPC分类号: F01N3/023 , B01D41/00 , B01D46/00 , B01D46/006 , B01D46/0061 , B01D46/2418 , B01D46/32 , B01D53/64 , B01D53/82 , B01D2257/302 , B01D2259/40083 , B01D2279/30 , F01N3/00 , F01N3/021 , F01N3/022 , F01N3/0222 , F01N3/0232 , F01N3/035 , F01N3/085
摘要: A wall flow type particulate filter is arranged inside the exhaust passage of an internal combustion engine where combustion is performed under an excess of oxygen. The particulate filter carries a solid acid. The solid acid has an acid strength which is higher than the acid strength of sulfurous acid and lower than the acid strength of sulfuric acid. To remove the ash from the particulate filter, ash atomization processing for rendering the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature is temporarily performed.
摘要翻译: 壁流式微粒过滤器布置在内燃机的排气通道内部,其中在过量的氧气下进行燃烧。 颗粒过滤器携带固体酸。 固体酸的酸强度高于亚硫酸的酸强度,低于硫酸的酸强度。 为了从颗粒过滤器除去灰分,临时进行用于使微粒过滤器的状态为灰尘雾化处理的状态,其中流入颗粒过滤器的废气的浓度降低,并且微粒过滤器的温度升高。
-
公开(公告)号:US09011569B2
公开(公告)日:2015-04-21
申请号:US14126904
申请日:2012-06-29
申请人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
发明人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
IPC分类号: B01D39/14 , B01D39/06 , B01D39/20 , B01D24/00 , B01D50/00 , F01N3/023 , B01D46/24 , B01D46/00 , F01N3/022 , F01N3/035 , F01N3/021 , B01D46/32 , B01D53/64 , F01N3/08 , B01D41/00 , B01D53/82 , F01N3/00
CPC分类号: F01N3/023 , B01D41/00 , B01D46/00 , B01D46/006 , B01D46/0061 , B01D46/2418 , B01D46/32 , B01D53/64 , B01D53/82 , B01D2257/302 , B01D2259/40083 , B01D2279/30 , F01N3/00 , F01N3/021 , F01N3/022 , F01N3/0222 , F01N3/0232 , F01N3/035 , F01N3/085
摘要: A wall flow type particulate filter (24) adapted to be arranged in an exhaust passage of an internal combustion engine in which combustion is performed in an excess of oxygen carries a solid acid. The solid acid has an acid strength which is higher than the acid strength of sulfurous acid and lower than the acid strength of sulfuric acid.
摘要翻译: 适于布置在内燃机的排气通道中的壁流式微粒过滤器(24),其中在过量的氧气中进行燃烧,其携带固体酸。 固体酸的酸强度高于亚硫酸的酸强度,低于硫酸的酸强度。
-
公开(公告)号:US08778053B2
公开(公告)日:2014-07-15
申请号:US14110811
申请日:2012-06-29
申请人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
发明人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
IPC分类号: B01D39/14 , B01D39/06 , B01D39/20 , B01D24/00 , B01D50/00 , B01D46/00 , B01D53/64 , B01D46/32 , B01D41/00 , B01D46/24 , F01N3/022 , B01D53/82 , F01N3/00
CPC分类号: F01N3/023 , B01D41/00 , B01D46/00 , B01D46/006 , B01D46/0061 , B01D46/2418 , B01D46/32 , B01D53/64 , B01D53/82 , B01D2257/302 , B01D2259/40083 , B01D2279/30 , F01N3/00 , F01N3/021 , F01N3/022 , F01N3/0222 , F01N3/0232 , F01N3/035 , F01N3/085
摘要: A method of removing ash from a wall flow type particulate filter which is arranged in an exhaust passage of an internal combustion engine in which combustion is performed in an excess of oxygen for trapping particulate matter in exhaust gas, using a solid acid which is carried on the particulate filter, renders the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature, and then renders the state of the particulate filter a state where the exhaust gas which flows into the particulate filter in an oxidizing atmosphere contains SOx.
摘要翻译: 一种从壁流型微粒过滤器除去灰尘的方法,该过滤器布置在内燃机的排气通道中,其中在过量的氧气中进行燃烧以在废气中捕集颗粒物质,使用载体上的固体酸 颗粒过滤器使颗粒过滤器的状态为流入颗粒过滤器的废气在氧气浓度降低并且颗粒过滤器升温的状态,然后使微粒过滤器的状态呈现状态, 在氧化气氛中流入微粒过滤器的废气含有SOx。
-
公开(公告)号:US20140120001A1
公开(公告)日:2014-05-01
申请号:US14126904
申请日:2012-06-29
申请人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
发明人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
IPC分类号: F01N3/023
CPC分类号: F01N3/023 , B01D41/00 , B01D46/00 , B01D46/006 , B01D46/0061 , B01D46/2418 , B01D46/32 , B01D53/64 , B01D53/82 , B01D2257/302 , B01D2259/40083 , B01D2279/30 , F01N3/00 , F01N3/021 , F01N3/022 , F01N3/0222 , F01N3/0232 , F01N3/035 , F01N3/085
摘要: A wall flow type particulate filter (24) adapted to be arranged in an exhaust passage of an internal combustion engine in which combustion is performed in an excess of oxygen carries a solid acid. The solid acid has an acid strength which is higher than the acid strength of sulfurous acid and lower than the acid strength of sulfuric acid.
摘要翻译: 适于布置在内燃机的排气通道中的壁流式微粒过滤器(24),其中在过量的氧气中进行燃烧,其中携带固体酸。 固体酸的酸强度高于亚硫酸的酸强度,低于硫酸的酸强度。
-
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。
-
公开(公告)号:US09057298B2
公开(公告)日:2015-06-16
申请号:US14126947
申请日:2012-06-29
申请人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
发明人: Hiroshi Otsuki , Shigeki Nakayama , Hiromasa Nishioka , Katsuhiko Oshikawa , Yoshihisa Tsukamoto , Junichi Matsuo , Yuichi Sobue , Daichi Imai , Kou Sugawara
IPC分类号: B01D50/00 , B01D39/20 , B01D39/14 , B01D39/06 , B01D24/00 , F01N3/023 , B01D46/24 , B01D46/00 , F01N3/022 , F01N3/035 , F01N3/021 , B01D46/32 , B01D53/64 , F01N3/08 , B01D41/00 , B01D53/82 , F01N3/00
CPC分类号: F01N3/023 , B01D41/00 , B01D46/00 , B01D46/006 , B01D46/0061 , B01D46/2418 , B01D46/32 , B01D53/64 , B01D53/82 , B01D2257/302 , B01D2259/40083 , B01D2279/30 , F01N3/00 , F01N3/021 , F01N3/022 , F01N3/0222 , F01N3/0232 , F01N3/035 , F01N3/085
摘要: A wall flow type particulate filter is arranged inside the exhaust passage of an internal combustion engine where combustion is performed under an excess of oxygen. The particulate filter carries a solid acid. The solid acid has a Hammett acidity function smaller than −0.83 and larger than −12 in the standard state. To remove the ash from the particulate filter, ash atomization processing for rendering the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature is temporarily performed.
摘要翻译: 壁流式微粒过滤器布置在内燃机的排气通道内部,其中在过量的氧气下进行燃烧。 颗粒过滤器携带固体酸。 固体酸在标准状态下的哈米特酸度函数小于-0.83且大于-12。 为了从颗粒过滤器除去灰分,临时进行用于使微粒过滤器的状态为灰尘雾化处理的状态,其中流入颗粒过滤器的废气的浓度降低,并且微粒过滤器的温度升高。
-
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。
-
-
-
-
-
-
-
-
-