公开(公告)号：US07871452B2

公开(公告)日：2011-01-18

申请号：US12243171

申请日：2008-10-01

申请人： Hiroshi Yamada ,  Kenji Suzuki ,  Koichiro Harada ,  Kenji Okamoto ,  Akihide Takami ,  Susumu Mineoi ,  Hirosuke Sumida

发明人： Hiroshi Yamada ,  Kenji Suzuki ,  Koichiro Harada ,  Kenji Okamoto ,  Akihide Takami ,  Susumu Mineoi ,  Hirosuke Sumida

IPC分类号： B01D53/94 ,  B01J23/68

CPC分类号： B01J23/10 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/407 ,  B01D2257/404 ,  B01D2257/702 ,  B01D2258/012 ,  B01J23/002 ,  B01J23/63 ,  B01J35/0006 ,  B01J37/0036 ,  B01J37/0201 ,  B01J37/024 ,  B01J37/0248 ,  B01J37/031 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/3725 ,  B01J2523/3787 ,  B01J2523/48 ,  B01J2523/35 ,  B01J2523/36 ,  B01J2523/3718 ,  B01J2523/3706 ,  B01J2523/3737

摘要： Disclosed is a particulate filter, which is adapted to be disposed in an exhaust passage of an engine to trap particulate matter contained in exhaust gas discharged from the engine. The particulate filter comprises a filter body having a porous partition wall which defines a plurality of exhaust gas channels allowing the exhaust gas to pass therethrough, and a catalyst layer formed on a surface of the porous partition wall. The catalyst layer includes a Zr-based composite oxide which contains zirconium (Zr), and a rare-earth metal except cerium, wherein a content ratio of an oxide of the non-cerium rare-earth metal to a total amount of ZrO2 and the oxide of the non-cerium rare-earth metal in the Zr-based composite oxide is set in the range of greater than 33 mol % to less than 40 mol %. The particulate filter of the present invention can achieve a higher PM burning rate to burn PM within a shorter period of time. In addition, the higher PM burning rate makes it possible to provide enhanced fuel economy performance in an engine designed to perform a post-injection control.

摘要翻译： 公开了一种微粒过滤器，其适于设置在发动机的排气通道中以捕集从发动机排出的废气中所含的颗粒物质。 颗粒过滤器包括具有多孔分隔壁的过滤体，该多孔分隔壁限定允许废气通过的多个废气通道，以及形成在多孔分隔壁的表面上的催化剂层。 催化剂层包括含有锆（Zr）的Zr基复合氧化物和除了铈之外的稀土金属，其中非铈铈稀土金属的氧化物与ZrO 2的总量的含量比和 Zr系复合氧化物中的非铈稀土类金属的氧化物的含量设定在大于33摩尔％至小于40摩尔％的范围内。 本发明的微粒过滤器可以在更短的时间内实现更高的PM燃烧速率来燃烧PM。 此外，较高的PM燃烧速率使得可以在设计成执行后喷射控制的发动机中提供增强的燃料经济性能。

公开(公告)号：US20090241495A1

公开(公告)日：2009-10-01

申请号：US12396117

申请日：2009-03-02

申请人： Hiroshi Yamada ,  Koichiro Harada ,  Kenji Suzuki ,  Kenji Okamoto ,  Akihide Takami

发明人： Hiroshi Yamada ,  Koichiro Harada ,  Kenji Suzuki ,  Kenji Okamoto ,  Akihide Takami

IPC分类号： B01D39/14 ,  B01D39/20

CPC分类号： B01D46/247 ,  B01D46/2451 ,  B01D46/2455 ,  B01D46/2459 ,  B01D2046/2481 ,  B01D2046/2485 ,  B01D2046/2496 ,  B01D2279/30 ,  F01N3/0222 ,  Y02T10/20 ,  Y10S55/30 ,  Y10T428/24149

摘要： Disclosed is a particulate filter 10, which comprises a filter body 8 including a plurality of filter segments F1, F2 joined to each other by a joining material 7, wherein each of the filter segments includes a plurality of inflow cells each having a closed end on a downstream side in an exhaust-gas flow direction, and a plurality of outflow cells each having a closed end on an upstream side in the exhaust-gas flow direction. The filter segments include a first filter segment located in a central region of the particulate filter and designed to form each of the inflow cells to have an opening area approximately equal to that of each of the outflow cells, and a second filer segment located in at least a part of an outer peripheral region of the particulate filter and designed to form each of the inflow cells to have an opening area greater than that of each of the outflow cells. The present invention can keep the central region of the particulate filter from becoming overheated during a particulate-filter regeneration process, while suppressing a pressure loss.

摘要翻译： 公开了一种微粒过滤器10，其包括过滤体8，其包括通过接合材料7彼此连接的多个过滤器段F1，F2，其中每个过滤段包括多个流入单元，每个流入单元各自具有封闭端 排气流动方向的下游侧，以及在排气流动方向的上游侧具有封闭端的多个流出电池。 过滤器段包括位于颗粒过滤器的中心区域中的第一过滤器段，并被设计成形成每个流入单元以具有与每个流出单元的开口面积大致相等的开口面积，以及位于 所述颗粒过滤器的外周区域的至少一部分被设计成形成每个所述流入单元以具有大于每个所述流出单元的开口面积。 本发明可以在颗粒过滤器再生过程中保持颗粒过滤器的中心区域变得过热，同时抑制压力损失。

公开(公告)号：US20080207438A1

公开(公告)日：2008-08-28

申请号：US12068864

申请日：2008-02-12

申请人： Kenji Suzuki ,  Koichiro Harada ,  Hiroshi Yamada ,  Kenji Okamoto ,  Akihide Takami

发明人： Kenji Suzuki ,  Koichiro Harada ,  Hiroshi Yamada ,  Kenji Okamoto ,  Akihide Takami

IPC分类号： B01J23/92 ,  B01J23/10 ,  B01D53/34

CPC分类号： B01J23/10 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/9022 ,  B01D2255/91 ,  B01J23/002 ,  B01J23/63 ,  B01J35/002 ,  B01J35/10 ,  B01J37/0242 ,  B01J37/0244 ,  B01J37/0248 ,  B01J37/03 ,  B01J2523/00 ,  C01G25/00 ,  C01G25/006 ,  C01P2002/50 ,  C01P2002/72 ,  C01P2006/12 ,  C01P2006/13 ,  F01N3/0821 ,  F01N3/0842 ,  F01N2510/06 ,  F01N2510/0684 ,  Y02T10/22 ,  B01J2523/3706 ,  B01J2523/3725 ,  B01J2523/48 ,  B01J2523/3737 ,  B01J2523/3718 ,  B01J2523/35 ,  B01J2523/3787 ,  B01J2523/36

摘要： Disclosed is a catalytic material for purifying an exhaust gas component. The catalytic material comprises a composite oxide which contains, as essential components, zirconium (Zr) and neodymium (Nd), and further contains a rare-earth metal R other than cerium (Ce) and neodymium (Nd), wherein each of the zirconium, neodymium and rare-earth metal R constituting the composite oxide is contained, in the form of oxide, in such a manner that a ratio of Nd2O3/(ZrO2+Nd2O3+RO) is 3 mol % or more, and a ratio of (Nd2O3+RO)/(ZrO2+Nd2O3+RO) is 33 mol % or less. The catalytic material of the present invention can oxidize/burn PM in a short period of time, while suppressing CO emission during the burning of the PM, and can achieve further enhanced NOx conversion performance.

摘要翻译： 公开了一种用于净化废气成分的催化材料。 催化剂材料包含含有锆（Zr）和钕（Nd）作为必要成分的复合氧化物，并且还包含除了铈（Ce）和钕（Nd）之外的稀土金属R，其中每个锆 构成复合氧化物的钕和稀土类金属R以氧化物的形式含有Nd 2 O 3 3（ZrO 2）的比例 ＆lt; 2＆gt; 2 + Nd 2 O 3 + RO）的摩尔比为3摩尔％以上，（Nd 2 N 2 O 2 + > O 3 + RO）/（ZrO 2 + Nd 2 O 3 + RO）为33摩尔％ 或更少。 本发明的催化剂材料可在短时间内氧化/燃烧PM，同时在PM燃烧过程中抑制CO排放，并可进一步提高NOx转化性能。

公开(公告)号：US08067330B2

公开(公告)日：2011-11-29

申请号：US12068864

申请日：2008-02-12

申请人： Kenji Suzuki ,  Koichiro Harada ,  Hiroshi Yamada ,  Kenji Okamoto ,  Akihide Takami

发明人： Kenji Suzuki ,  Koichiro Harada ,  Hiroshi Yamada ,  Kenji Okamoto ,  Akihide Takami

IPC分类号： B01J23/00 ,  B01J23/10 ,  B01J23/42 ,  B01J23/44

CPC分类号： B01J23/10 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/9022 ,  B01D2255/91 ,  B01J23/002 ,  B01J23/63 ,  B01J35/002 ,  B01J35/10 ,  B01J37/0242 ,  B01J37/0244 ,  B01J37/0248 ,  B01J37/03 ,  B01J2523/00 ,  C01G25/00 ,  C01G25/006 ,  C01P2002/50 ,  C01P2002/72 ,  C01P2006/12 ,  C01P2006/13 ,  F01N3/0821 ,  F01N3/0842 ,  F01N2510/06 ,  F01N2510/0684 ,  Y02T10/22 ,  B01J2523/3706 ,  B01J2523/3725 ,  B01J2523/48 ,  B01J2523/3737 ,  B01J2523/3718 ,  B01J2523/35 ,  B01J2523/3787 ,  B01J2523/36

摘要： Disclosed is a catalytic material for purifying an exhaust gas component. The catalytic material comprises a composite oxide which contains, as essential components, zirconium (Zr) and neodymium (Nd), and further contains a rare-earth metal R other than cerium (Ce) and neodymium (Nd), wherein each of the zirconium, neodymium and rare-earth metal R constituting the composite oxide is contained, in the form of oxide, in such a manner that a ratio of Nd2O3/(ZrO2+Nd2O3+RO) is 3 mol % or more, and a ratio of (Nd2O3+RO)/(ZrO2+Nd2O3+RO) is 33 mol % or less. The catalytic material of the present invention can oxidize/burn PM in a short period of time, while suppressing CO emission during the burning of the PM, and can achieve further enhanced NOx conversion performance.

摘要翻译： 公开了一种用于净化废气成分的催化材料。 催化剂材料包含含有锆（Zr）和钕（Nd）作为必要成分的复合氧化物，并且还包含除了铈（Ce）和钕（Nd）之外的稀土金属R，其中每个锆 构成复合氧化物的钕和稀土金属R以氧化物的形式包含Nd 2 O 3 /（ZrO 2 + Nd 2 O 3 + RO）的比例为3摩尔％以上，（ Nd2O3 + RO）/（ZrO2 + Nd2O3 + RO）为33摩尔％以下。 本发明的催化剂材料可在短时间内氧化/燃烧PM，同时在PM燃烧过程中抑制CO排放，并可进一步提高NOx转化性能。

公开(公告)号：US20080254973A1

公开(公告)日：2008-10-16

申请号：US11979371

申请日：2007-11-01

申请人： Kenji Okamoto ,  Hiroshi Yamada ,  Koichiro Harada ,  Kenji Suzuki ,  Yoshinori Tsushio ,  Hiroki Fujita ,  Akihide Takami

发明人： Kenji Okamoto ,  Hiroshi Yamada ,  Koichiro Harada ,  Kenji Suzuki ,  Yoshinori Tsushio ,  Hiroki Fujita ,  Akihide Takami

IPC分类号： B01J23/10 ,  B01J21/18

CPC分类号： B01J23/63 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/407 ,  B01D2255/702 ,  B01J23/10 ,  B01J23/42 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/04 ,  B01J37/0248 ,  F01N3/035

摘要： A catalyst-carried particulate filter contains a catalyst obtained by mixing Pt/alumina acting to promote the burning of particulates in a high temperature range, a second oxide acting to promote the burning of particulates in a low temperature range and a first oxide acting to promote the burning of particulates in an intermediate temperature range.

摘要翻译： 载有催化剂的颗粒过滤器包含通过混合用于促进高温范围内的颗粒燃烧的Pt /氧化铝获得的催化剂，用于促进低温范围内的颗粒的燃烧的第二氧化物和用于促进颗粒的第一氧化物 在中等温度范围内燃烧微粒。

公开(公告)号：US08092565B2

公开(公告)日：2012-01-10

申请号：US12396117

申请日：2009-03-02

申请人： Hiroshi Yamada ,  Koichiro Harada ,  Kenji Suzuki ,  Kenji Okamoto ,  Akihide Takami

发明人： Hiroshi Yamada ,  Koichiro Harada ,  Kenji Suzuki ,  Kenji Okamoto ,  Akihide Takami

IPC分类号： B01D46/00

CPC分类号： B01D46/247 ,  B01D46/2451 ,  B01D46/2455 ,  B01D46/2459 ,  B01D2046/2481 ,  B01D2046/2485 ,  B01D2046/2496 ,  B01D2279/30 ,  F01N3/0222 ,  Y02T10/20 ,  Y10S55/30 ,  Y10T428/24149

摘要： Disclosed is a particulate filter 10, which comprises a filter body 8 including a plurality of filter segments F1, F2 joined to each other by a joining material 7, wherein each of the filter segments includes a plurality of inflow cells each having a closed end on a downstream side in an exhaust-gas flow direction, and a plurality of outflow cells each having a closed end on an upstream side in the exhaust-gas flow direction. The filter segments include a first filter segment located in a central region of the particulate filter and designed to form each of the inflow cells to have an opening area approximately equal to that of each of the outflow cells, and a second filer segment located in at least a part of an outer peripheral region of the particulate filter and designed to form each of the inflow cells to have an opening area greater than that of each of the outflow cells. The present invention can keep the central region of the particulate filter from becoming overheated during a particulate-filter regeneration process, while suppressing a pressure loss.

摘要翻译： 公开了一种微粒过滤器10，其包括过滤体8，其包括通过接合材料7彼此连接的多个过滤器段F1，F2，其中每个过滤段包括多个流入单元，每个流入单元各自具有封闭端 排气流动方向的下游侧，以及在排气流动方向的上游侧具有封闭端的多个流出电池。 过滤器段包括位于颗粒过滤器的中心区域中的第一过滤器段，并被设计成形成每个流入单元以具有与每个流出单元的开口面积近似相等的开口面积，以及位于 所述颗粒过滤器的外周区域的至少一部分被设计成形成每个所述流入单元以具有大于每个所述流出单元的开口面积。 本发明可以在颗粒过滤器再生过程中保持颗粒过滤器的中心区域变得过热，同时抑制压力损失。

公开(公告)号：US20070196245A1

公开(公告)日：2007-08-23

申请号：US11675855

申请日：2007-02-16

申请人： Hiroki Fujita ,  Koichiro Harada ,  Kenji Okamoto ,  Yoshinori Tsushio ,  Akihide Takami ,  Kenji Suzuki

发明人： Hiroki Fujita ,  Koichiro Harada ,  Kenji Okamoto ,  Yoshinori Tsushio ,  Akihide Takami ,  Kenji Suzuki

IPC分类号： B01J23/00

CPC分类号： B01D53/944 ,  B01D53/945 ,  B01D2255/102 ,  B01D2255/204 ,  B01D2255/206 ,  B01J23/002 ,  B01J23/10 ,  B01J23/63 ,  B01J35/04 ,  B01J2523/00 ,  F01N3/035 ,  Y02T10/22 ,  B01J2523/23 ,  B01J2523/3712 ,  B01J2523/3737 ,  B01J2523/22 ,  B01J2523/375 ,  B01J2523/25 ,  B01J2523/24

摘要： Walls forming exhaust gas channels in a DPF are coated with a catalyst layer for promoting the burning of particulates trapped thereon. The catalyst layer contains alumna and a composite oxide containing Ce as a major component and rare earth metal other than Ce or alkali earth metal. Pt is loaded on the alumina and the composite oxide.

摘要翻译： 在DPF中形成废气通道的壁涂覆有用于促进被捕获在其上的微粒的燃烧的催化剂层。 催化剂层含有铈和含有Ce作为主要成分的复合氧化物和Ce或碱土金属以外的稀土金属。 Pt负载在氧化铝和复合氧化物上。

公开(公告)号：US20070191219A1

公开(公告)日：2007-08-16

申请号：US11668518

申请日：2007-01-30

申请人： Hiroki Fujita ,  Koichiro Harada ,  Kenji Okamoto ,  Yoshinori Tsushio ,  Akihide Takami ,  Kenji Suzuki

发明人： Hiroki Fujita ,  Koichiro Harada ,  Kenji Okamoto ,  Yoshinori Tsushio ,  Akihide Takami ,  Kenji Suzuki

IPC分类号： B01J23/00 ,  B01J23/10

CPC分类号： B01J23/10 ,  B01J23/63 ,  B01J35/0013 ,  B01J35/04 ,  B01J37/0215 ,  B01J37/03 ,  B01J37/038 ,  C01G25/006 ,  F01N3/035

摘要： Disclosed is a catalytic material for removing diesel particulates, which comprises a composite oxide which contains zirconium as a primary component and a rare-earth metal except for cerium and yttrium. The composite oxide has a crystallite diameter of 13 nm to 40 nm.

摘要翻译： 公开了一种用于除去柴油微粒的催化材料，其包含含有锆作为主要成分的复合氧化物和除了铈和钇之外的稀土金属。 复合氧化物的微晶直径为13nm〜40nm。

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

IPC分类号： B01D50/00 ,  B01J23/00 ,  B01J21/00 ,  B01J20/00

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。

公开(公告)号：US08187548B2

公开(公告)日：2012-05-29

申请号：US12249123

申请日：2008-10-10

申请人： Hiroshi Yamada ,  Kenji Suzuki ,  Koichiro Harada ,  Kenji Okamoto ,  Akihida Takami

发明人： Hiroshi Yamada ,  Kenji Suzuki ,  Koichiro Harada ,  Kenji Okamoto ,  Akihida Takami

IPC分类号： B01D53/38 ,  B01J23/10

CPC分类号： B01J23/63 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/206 ,  B01D2255/407 ,  B01J23/002 ,  B01J23/10 ,  B01J35/04 ,  B01J37/0248 ,  B01J37/03 ,  B01J2523/00 ,  F01N3/035 ,  F01N2370/02 ,  Y02T10/22 ,  B01J2523/3712 ,  B01J2523/3718 ,  B01J2523/48 ,  B01J2523/3706 ,  B01J2523/3725 ,  B01J2523/36

摘要： A catalyst layer formed on the walls of exhaust gas channels in a particulate filter contains a catalyst material containing at least two kinds of primary particles selected from the group consisting of primary particles of activated alumina, primary particles of a ZrNd-based mixed oxide and primary particles of a CeZr-based mixed oxide. The catalyst material is formed so that primary particles of one of the ZrNd-based mixed oxide and the CeZr-based mixed oxide are dispersedly carried on the surface of each of secondary particles. Each secondary particle is formed by cohesion of at least one kind of primary particles selected from the group consisting of primary particles of activated alumina and primary particles of the other of the ZrNd-based mixed oxide and the CeZr-based mixed oxide.

摘要翻译： 形成在颗粒过滤器的排气通道壁上的催化剂层包含含有至少两种选自活性氧化铝的初级颗粒，ZrNd基混合氧化物的初级颗粒和初级颗粒的催化剂材料 CeZr基混合氧化物颗粒。 形成催化剂材料，使得ZrNd系混合氧化物和CeZr系混合氧化物之一的一次粒子分散地载持在各二次粒子的表面上。 每个二次粒子是由选自活性氧化铝的一次粒子和另一个ZrNd系混合氧化物的一次粒子和CeZr系混合氧化物中的至少一种一次粒子的内聚形成的。