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公开(公告)号：US08052936B2
公开(公告)日：2011-11-08
申请号：US12169753
申请日：2008-07-09
申请人： Koichiro Harada , Kenji Suzuki , Kenji Okamoto , Hiroshi Yamada , Akihide Tamani
发明人： Koichiro Harada , Kenji Suzuki , Kenji Okamoto , Hiroshi Yamada , Akihide Tamani
CPC分类号： B01J23/002 , B01D53/944 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2258/012 , B01D2258/014 , B01J23/10 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J37/0248 , B01J2523/00 , B01J2523/3712 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , B01J2523/36 , B01J2523/3706
摘要： In a particulate filter, a catalyst layer containing Pt-carried activated alumina particles, CeZr-based mixed oxide particles and ZrNd-based mixed oxide particles is formed, the proportion of the total amount of the CeZr-based mixed oxide particles and the ZrNd-based mixed oxide particles in the total amount of the Pt-carried activated alumina particles, the CeZr-based mixed oxide particles and the ZrNd-based mixed oxide particles is 10% to 60% by mass, both inclusive, and the mass ratio of the CeZr-based mixed oxide particles to the ZrNd-based mixed oxide particles is 20/80 to 80/20, both inclusive. This configuration enhances the particulate burning property and the low-temperature exhaust gas conversion efficiency.
摘要翻译： 在微粒过滤器中，形成含有Pt载体的活性氧化铝粒子，CeZr系混合氧化物粒子，ZrNd系混合氧化物粒子的催化剂层，CeZr系混合氧化物粒子和ZrNd- Pt负载活性氧化铝颗粒的总量，CeZr系混合氧化物粒子和ZrNd系混合氧化物粒子的比例为10质量％〜60质量％，其中， CeZr系混合氧化物粒子与ZrNd系混合氧化物粒子的比例为20/80〜80/20。 这种结构提高了颗粒燃烧性能和低温排气转换效率。
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公开(公告)号：US08051646B2
公开(公告)日：2011-11-08
申请号：US12502728
申请日：2009-07-14
申请人： Koichiro Harada , Hiroshi Yamada , Akihide Takami
发明人： Koichiro Harada , Hiroshi Yamada , Akihide Takami
IPC分类号： F01N3/00
CPC分类号： F02D41/029 , B01D53/944 , B01D53/9495 , B01D2251/208 , B01D2255/1021 , B01D2255/20715 , B01D2255/2092 , B01D2258/012 , B01D2258/014 , F02D41/025 , F02D41/1446 , F02D41/1448 , F02D41/405 , F02D2200/0812
摘要： Disclosed is a particulate filter regenerating system which comprises a fuel injection device (7) adapted to inject fuel into a combustion chamber of an engine body (1), and an exhaust gas temperature-adjusting device (33) adapted, when a PM deposit amount which is an amount of particulate matter (PM) deposited in a DPF (particulate filter) 13 provided in an exhaust passage of an engine, reaches a predetermined value X, to cause the fuel injection device (7) to perform a post-injection for injecting fuel into the combustion chamber during an expansion stroke of the engine, so as to execute a filter regeneration process of raising a temperature of exhaust gas flowing into the DPF 13 to burn the deposited PM. The exhaust gas temperature-adjusting device (33) is operable to cause the fuel injection device (7) to stop performing the post-injection in a stage where a PM burning amount which is an amount of PM burned through the filter regeneration process, is less than an initial PM deposit amount which is the PM deposit amount X at a timing of initiation of the filter regeneration process, by a predetermined amount. The particulate filter regenerating system of the present invention can adequately burn and remove PM deposited in a particulate filter, by means of a post-injection of fuel, while effectively suppressing a fuel consumption due to the post-injection.
摘要翻译： 公开了一种微粒过滤器再生系统，其包括适于将燃料喷射到发动机主体（1）的燃烧室中的燃料喷射装置（7），以及排气温度调节装置（33），当PM沉积量 其是沉积在设置在发动机的排气通道中的DPF（微粒过滤器）13中的颗粒物质（PM）的量达到预定值X，以使燃料喷射装置（7）执行后喷射 在发动机的膨胀冲程期间将燃料喷射到燃烧室中，以便执行提高流入DPF 13的废气的温度以便燃烧沉积的PM的过滤器再生过程。 废气温度调节装置（33）可操作以使得燃料喷射装置（7）在通过过滤器再生处理燃烧的PM的PM燃烧量是PM燃烧量的阶段中停止执行后喷射 小于在过滤器再生处理开始时刻的PM沉积量X的初始PM沉积量预定量。 本发明的颗粒过滤器再生系统可以通过后喷射燃料来充分地燃烧和去除沉积在微粒过滤器中的PM，同时有效地抑制由于后喷射引起的燃料消耗。
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公开(公告)号：US07446076B2
公开(公告)日：2008-11-04
申请号：US11289666
申请日：2005-11-29
申请人： Seiji Miyoshi , Akihide Takami , Hiroshi Yamada , Masaaki Akamine , Hideharu Iwakuni , Koichiro Harada
发明人： Seiji Miyoshi , Akihide Takami , Hiroshi Yamada , Masaaki Akamine , Hideharu Iwakuni , Koichiro Harada
CPC分类号： B01D53/945 , B01J23/40 , B01J23/63 , B01J35/04 , B01J37/0232 , B01J37/0244 , B01J37/0248 , Y02T10/22
摘要： Catalytic converter comprises a carrier having exhaust gas passages therein, a lower catalytic layer coated over the carrier and comprising hollow oxide powder loaded with catalytic metal, and an upper catalytic layer coated over the lower catalytic layer, directly exposed to exhaust gas flowing in the exhaust gas passages and comprising solid oxide powder loaded with catalytic metal. The hollow oxide powder may be ceria or alumina base oxide. Further it may be mixed oxide such as Ce—Zr mixed oxide or La contained alumina as well.
摘要翻译： 催化转化器包括其中具有排气通道的载体，涂覆在载体上的下催化剂层，并且包含负载有催化金属的中空氧化物粉末，以及涂覆在下催化剂层上的上部催化剂层，直接暴露于在排气中流动的废气 气体通道并且包含装有催化金属的固体氧化物粉末。 中空氧化物粉末可以是二氧化铈或氧化铝基底氧化物。 此外，也可以是混合氧化物，例如Ce-Zr混合氧化物或La包含的氧化铝。
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公开(公告)号：US20060128562A1
公开(公告)日：2006-06-15
申请号：US11289666
申请日：2005-11-29
申请人： Seiji Miyoshi , Akihide Takami , Hiroshi Yamada , Masaaki Akamine , Hideharu Iwakuni , Koichiro Harada
发明人： Seiji Miyoshi , Akihide Takami , Hiroshi Yamada , Masaaki Akamine , Hideharu Iwakuni , Koichiro Harada
CPC分类号： B01D53/945 , B01J23/40 , B01J23/63 , B01J35/04 , B01J37/0232 , B01J37/0244 , B01J37/0248 , Y02T10/22
摘要： Catalytic converter comprises a carrier having exhaust gas passages therein, a lower catalytic layer coated over the carrier and comprising hollow oxide powder loaded with catalytic metal, and an upper catalytic layer coated over the lower catalytic layer, directly exposed to exhaust gas flowing in the exhaust gas passages and comprising solid oxide powder loaded with catalytic metal. The hollow oxide powder may be ceria or alumina base oxide. Further it may be mixed oxide such as Ce—Zr mixed oxide or La contained alumina as well.
摘要翻译： 催化转化器包括其中具有排气通道的载体，涂覆在载体上的下催化剂层，并且包含负载有催化金属的中空氧化物粉末，以及涂覆在下催化剂层上的上部催化剂层，直接暴露于在排气中流动的废气 气体通道并且包含装有催化金属的固体氧化物粉末。 中空氧化物粉末可以是二氧化铈或氧化铝基底氧化物。 此外，也可以是混合氧化物，例如Ce-Zr混合氧化物或La包含的氧化铝。
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公开(公告)号：US09381497B2
公开(公告)日：2016-07-05
申请号：US14346936
申请日：2012-08-01
IPC分类号： B01J23/63 , B01D53/94 , B01J37/03 , B01J35/00 , B01J23/00 , B01J35/02 , B01J35/04 , F01N3/10 , B01J23/42 , B01J23/46 , F01N3/035
CPC分类号： B01J23/63 , B01D53/944 , B01D2255/1021 , B01D2255/1025 , B01D2255/2065 , B01D2255/2066 , B01D2255/2068 , B01D2255/20715 , B01D2255/2092 , B01D2255/40 , B01D2255/407 , B01D2258/012 , B01J23/002 , B01J23/42 , B01J23/464 , B01J35/0006 , B01J35/002 , B01J35/023 , B01J35/04 , B01J37/031 , B01J2523/00 , F01N3/035 , F01N3/10 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , B01J2523/3712
摘要： A filter is configured for efficient combustion of particulates accumulated on a catalyst layer 7 in both a rapid combustion range and a slow combustion range. The catalyst layer 7 on an exhaust gas passage wall of a filter 1 includes a mixture of a Rh-doped Ce-containing composite oxide particle material loaded with Pt and a composite particle material loaded with Pt. In mixed particles of this mixture, Zr-containing composite oxide particles containing no Ce and activated alumina particles are mixed together and agglomerated.
摘要翻译： 过滤器被配置为在快速燃烧范围和缓慢燃烧范围内有效地燃烧积聚在催化剂层7上的微粒。 过滤器1的废气通道壁上的催化剂层7包括负载有Pt的Rh掺杂的含Ce复合氧化物颗粒材料和装有Pt的复合颗粒材料的混合物。 在该混合物的混合颗粒中，不含Ce和活性氧化铝颗粒的含Zr复合氧化物颗粒混合在一起并附聚。
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公开(公告)号：US20140205508A1
公开(公告)日：2014-07-24
申请号：US14346936
申请日：2012-08-01
CPC分类号： B01J23/63 , B01D53/944 , B01D2255/1021 , B01D2255/1025 , B01D2255/2065 , B01D2255/2066 , B01D2255/2068 , B01D2255/20715 , B01D2255/2092 , B01D2255/40 , B01D2255/407 , B01D2258/012 , B01J23/002 , B01J23/42 , B01J23/464 , B01J35/0006 , B01J35/002 , B01J35/023 , B01J35/04 , B01J37/031 , B01J2523/00 , F01N3/035 , F01N3/10 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , B01J2523/3712
摘要： A filter is configured for efficient combustion of particulates accumulated on a catalyst layer 7 in both a rapid combustion range and a slow combustion range. The catalyst layer 7 on an exhaust gas passage wall of a filter 1 includes a mixture of a Rh-doped Ce-containing composite oxide particle material loaded with Pt and a composite particle material loaded with Pt. In mixed particles of this mixture, Zr-containing composite oxide particles containing no Ce and activated alumina particles are mixed together and agglomerated.
摘要翻译： 过滤器被配置为在快速燃烧范围和缓慢燃烧范围内有效地燃烧积聚在催化剂层7上的微粒。 过滤器1的废气通道壁上的催化剂层7包括负载有Pt的Rh掺杂的含Ce复合氧化物颗粒材料和装有Pt的复合颗粒材料的混合物。 在该混合物的混合颗粒中，不含Ce和活性氧化铝颗粒的含Zr复合氧化物颗粒混合在一起并附聚。
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公开(公告)号：US20070117715A1
公开(公告)日：2007-05-24
申请号：US11583827
申请日：2006-10-20
申请人： Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
发明人： Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
IPC分类号： B01J23/00
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01D2255/9205 , B01J23/002 , B01J23/63 , B01J35/023 , B01J35/04 , B01J37/0045 , B01J37/343 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/48
摘要： An exhaust gas purification catalyst comprises an oxygen storage component constituted by a mixed oxide containing cerium and zirconium, and a catalytic metal and a NOx storage component are carried on the oxygen storage component. The oxygen storage component is in the form of porous secondary particles in each of which primary particles of an average particle size of less than 10 nm cohere to form fine pores inside each said secondary particle.
摘要翻译： 废气净化催化剂包括由含有铈和锆的混合氧化物构成的储氧组分，催化金属和NOx储存组分被载置在储氧组分上。 储氧组分是多孔二次颗粒的形式，其中平均粒度小于10nm的初级颗粒各自在每个所述二次颗粒内形成细孔。
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公开(公告)号：US07691778B2
公开(公告)日：2010-04-06
申请号：US11591543
申请日：2006-11-02
申请人： Tomohiro Honda , Tomoaki Urai , Ryota Fujimoto , Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
发明人： Tomohiro Honda , Tomoaki Urai , Ryota Fujimoto , Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/407 , B01D2255/908 , B01D2255/91 , B01J23/002 , B01J23/63 , B01J35/04 , B01J35/08 , B01J37/0045 , B01J37/343 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/48
摘要： An exhaust gas purification catalyst comprises: an oxygen storage component constituted by a mixed oxide containing cerium and zirconium; and a catalytic metal carried on the oxygen storage component. The oxygen storage component is in the form of hollow secondary particles each formed so that primary particles of an average particle size of less than 10 nm cohere into a shell.
摘要翻译： 废气净化催化剂包括：由含有铈和锆的混合氧化物构成的储氧组分; 以及承载在储氧部件上的催化金属。 储氧组分为中空二次颗粒的形式，每个颗粒均形成为使得平均粒度小于10nm的初级颗粒结合到壳中。
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公开(公告)号：US20070117716A1
公开(公告)日：2007-05-24
申请号：US11591543
申请日：2006-11-02
申请人： Tomohiro Honda , Tomoaki Urai , Ryota Fujimoto , Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
发明人： Tomohiro Honda , Tomoaki Urai , Ryota Fujimoto , Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
IPC分类号： B01J23/10
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/407 , B01D2255/908 , B01D2255/91 , B01J23/002 , B01J23/63 , B01J35/04 , B01J35/08 , B01J37/0045 , B01J37/343 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/48
摘要： An exhaust gas purification catalyst comprises: an oxygen storage component constituted by a mixed oxide containing cerium and zirconium; and a catalytic metal carried on the oxygen storage component. The oxygen storage component is in the form of hollow secondary particles each formed so that primary particles of an average particle size of less than 10 nm cohere into a shell.
摘要翻译： 废气净化催化剂包括：由含有铈和锆的混合氧化物构成的储氧组分; 以及承载在储氧部件上的催化金属。 储氧组分是中空二次颗粒的形式，每个颗粒形成为使得平均粒度小于10nm的初级颗粒结合到壳中。
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20.发明授权公开(公告)号：US06562753B2
公开(公告)日：2003-05-13
申请号：US09982995
申请日：2001-10-22
申请人： Seiji Miyoshi , Akihide Takami , Makoto Kyougoku , Hiroshi Yamada , Kenji Okamoto , Kenichi Yamamoto , Yuki Kooda
发明人： Seiji Miyoshi , Akihide Takami , Makoto Kyougoku , Hiroshi Yamada , Kenji Okamoto , Kenichi Yamamoto , Yuki Kooda
IPC分类号： B01J2110
CPC分类号： B01D53/945 , B01D53/9422 , B01D53/9481 , B01D53/9486 , B01D53/949 , B01D2255/2022 , B01D2255/204 , B01D2255/2042 , B01D2255/2047 , B01D2258/012 , B01J23/10 , B01J23/58 , B01J23/63 , B01J37/0242 , B01J37/0244 , F01N3/0842 , F01N2570/04 , F02D41/0275 , F02D41/028 , Y02T10/22 , Y10S502/514
摘要： A catalyst for lowering NOx concentration in an exhaust gas is disposed in an exhaust gas passage of an engine. The catalyst composed of a catalyst layer formed on a substrate. A NOx absorber that absorbs NOx when an oxygen concentration in the exhaust gas is high and releases NOx when the oxygen concentration drops, and a precious metal for reducing NOx are supported on a support material as catalyst components, and the NOx absorber includes Ba, K, Sr, and Mg. By lowering the oxygen concentration in the exhaust gas and raising a temperature of the NOx absorber when sulfur component is absorbed excessively in the NOx absorber, it is possible to regenerate the catalyst from the S poisoning.
摘要翻译： 用于降低排气中的NOx浓度的催化剂设置在发动机的排气通道中。 催化剂由形成在基材上的催化剂层组成。 当NOx浓度降低时，当排气中的氧浓度高时吸收NOx，并且在氧浓度下降时释放NOx，并且用于还原NOx的贵金属作为催化剂组分负载在载体材料上，并且NOx吸收剂包括Ba，K ，Sr和Mg。 通过降低废气中的氧浓度，并且当在NOx吸收器中过度吸收硫成分时，提高NOx吸收体的温度，可以从S中毒再生催化剂。
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