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1. 发明申请

US20090099012A1 CATALYST-SUPPORTED PARTICULATE 审中-公开
标题翻译：催化剂支持颗粒
公开(公告)号：US20090099012A1
公开(公告)日：2009-04-16
申请号：US12243439
申请日：2008-10-01
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： B01J23/10
CPC分类号： B01D53/944 , B01D2255/1021 , B01D2255/1023 , B01D2255/206 , B01D2255/2092 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01J23/002 , B01J23/63 , B01J35/023 , B01J37/0248 , B01J2523/00 , F01N3/035 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , B01J2523/3706 , B01J2523/36 , B01J2523/3712
摘要： A catalyst layer formed on the walls of exhaust gas channels in a particulate filter contains a catalyst material in the form of secondary particles, each secondary particle being formed so that at least two kinds of primary particles selected from the group consisting of primary particles of activated alumina, primary particles of a Zr-based mixed oxide and primary particles of a Ce-based mixed oxide are mixed and cohere together. Each of the primary particles of the Zr-based mixed oxide contains Zr and a rare earth metal Z other than Ce and each of the primary particles of the Ce-based mixed oxide contains Ce, Zr and a rare earth metal R other than Ce.
摘要翻译：在颗粒过滤器中形成在排气通道的壁上的催化剂层包含二次颗粒形式的催化剂材料，每个二次颗粒被形成为使得至少两种一次颗粒选自活化的初级颗粒氧化铝，Zr系混合氧化物的一次粒子和Ce系混合氧化物的一次粒子混合并凝聚在一起。 Zr系混合氧化物的一次粒子含有Zr和Ce以外的稀土金属Z，Ce系混合氧化物的一次粒子各自含有Ce，Zr和Ce以外的稀土金属R.

2. 发明申请

US20090041637A1 CATALYST-SUPPORTED PARTICULATE FILTER 有权
标题翻译：催化剂支持的颗粒过滤器
公开(公告)号：US20090041637A1
公开(公告)日：2009-02-12
申请号：US12169753
申请日：2008-07-09
申请人： Koichiro HARADA , Kenji SUZUKI , Kenji OKAMOTO , Hiroshi YAMADA , Akihide TAKAMI
发明人： Koichiro HARADA , Kenji SUZUKI , Kenji OKAMOTO , Hiroshi YAMADA , Akihide TAKAMI
IPC分类号： B01D53/86
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载体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。

3. 发明申请

US20090107124A1 CATALYST-SUPPORTED PARTICULATE FILTER 有权
标题翻译：催化剂支持的颗粒过滤器
公开(公告)号：US20090107124A1
公开(公告)日：2009-04-30
申请号：US12249123
申请日：2008-10-10
申请人： Hiroshi YAMADA , Kenji SUZUKI , Koichiro HARADA , Kenji OKAMOTO , Akihide TAKAMI
发明人： Hiroshi YAMADA , Kenji SUZUKI , Koichiro HARADA , Kenji OKAMOTO , Akihide TAKAMI
IPC分类号： F01N3/035
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。

4. 发明申请

US20090084266A1 PARTICULATE FILTER 有权
标题翻译：颗粒过滤器
公开(公告)号：US20090084266A1
公开(公告)日：2009-04-02
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 , Hirosuki SUMIDA
发明人： Hiroshi YAMADA , Kenji SUZUKI , Koichiro HARADA , Kenji OKAMOTO , Akihide TAKAMI , Susumu MINEOI , Hirosuki SUMIDA
IPC分类号： B01D53/02
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。

5. 发明申请

US20100018190A1 PARTICULATE FILTER REGENERATING SYSTEM 有权
标题翻译：颗粒过滤器再生系统
公开(公告)号：US20100018190A1
公开(公告)日：2010-01-28
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： F01N3/023 , 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。

6. 发明申请

US20110107751A1 EXHAUST GAS PURIFICATION CATALYST 审中-公开
标题翻译：排气净化催化剂
公开(公告)号：US20110107751A1
公开(公告)日：2011-05-12
申请号：US12912254
申请日：2010-10-26
申请人： Masaaki AKAMINE , Hiroshi YAMADA , Masahiko SHIGETSU , Akihide TAKAMI
发明人： Masaaki AKAMINE , Hiroshi YAMADA , Masahiko SHIGETSU , Akihide TAKAMI
IPC分类号： F01N3/10
CPC分类号： B01D53/945 , B01J21/066 , B01J23/002 , B01J23/10 , B01J23/464 , B01J23/63 , B01J35/04 , B01J37/0244 , B01J37/0248 , B01J37/038 , F01N2510/06 , Y02T10/22
摘要： In an exhaust gas purification catalyst in which Rh-doped CeZr-based mixed oxide powder and precious-metal (at least one of Pt and Pd)-supporting heat-resistant powder are included in a catalyst layer 2 provided on a support 1, Rh-doped CeZr-based mixed oxide particles either contain at least one of Pr, La, and Y, or are complexed with Al2O3, and support none of Pt and Pd, and heat-resistant particles supporting the precious metal are one of at least one of activated Al2O3 particles containing La, BaSO4 particles, and complex particles made of CeZr-based mixed oxide and Al2O3.
摘要翻译：在设置在载体1上的催化剂层2中包含Rh掺杂的CeZr系混合氧化物粉末和贵金属（Pt和Pd中的至少一种）负载的耐热粉末的排气净化催化剂中，Rh 掺杂的CeZr基混合氧化物颗粒或者包含Pr，La和Y中的至少一种，或与Al 2 O 3络合，不支持Pt和Pd，并且支撑贵金属的耐热颗粒是至少一种的含有La，BaSO 4颗粒的活性Al 2 O 3颗粒和由CeZr基混合氧化物和Al 2 O 3制成的复合颗粒。

7. 发明申请

US20110045968A1 EXHAUST GAS PURIFICATION CATALYST 有权
标题翻译：排气净化催化剂
公开(公告)号：US20110045968A1
公开(公告)日：2011-02-24
申请号：US12846486
申请日：2010-07-29
申请人： Masaaki AKAMINE , Hideharu IWAKUNI , Hisaya KAWABATA , Yasuhiro OCHI , Yuki MURAKAMI , Susumu MINEOI , Akihide TAKAMI , Masahiko SHIGETSU
发明人： Masaaki AKAMINE , Hideharu IWAKUNI , Hisaya KAWABATA , Yasuhiro OCHI , Yuki MURAKAMI , Susumu MINEOI , Akihide TAKAMI , Masahiko SHIGETSU
IPC分类号： B01J23/10
CPC分类号： B01J23/63 , B01D53/945 , B01D2255/1025 , B01D2255/2061 , B01D2255/2068 , B01D2255/407 , B01D2255/9022 , B01D2255/9202 , B01D2258/014 , B01J23/002 , B01J35/0006 , B01J35/0013 , B01J35/002 , B01J35/023 , B01J37/0036 , B01J37/0244 , B01J37/0248 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/3725 , B01J2523/48 , B01J2523/822 , B01J2523/31 , B01J2523/3706
摘要： A catalyst layer includes: a first mixed oxide particle component 4 which contains Ce and Rh 8 and in which Rh is partially exposed at particle surfaces; and a second mixed oxide particle component 5 containing Ce, Zr, and a rare earth metal except Ce. The particle size distribution of the first mixed oxide particle component 4 has a peak in the particle size range from 100 nm to 300 nm, both inclusive. The particle size distribution of the second mixed oxide particle component 5 has a peak in a particle size range larger than the particle size range in which the first mixed oxide particle component 4 has the peak. At least part of particles of the first mixed oxide particle component 4 is attached to at least part of particles of the second mixed oxide particle component 5.
摘要翻译：催化剂层包括：含有Ce和Rh 8的第一混合氧化物颗粒组分4，其中Rh在颗粒表面部分暴露; 以及含有Ce，Zr和Ce以外的稀土金属的第二混合氧化物粒子成分5。第一混合氧化物粒子成分4的粒径分布在100nm〜300nm的粒径范围内具有峰值。第二混合氧化物粒子成分5的粒径分布具有比第一混合氧化物粒子成分4具有峰值的粒径范围大的粒度范围的峰。第一混合氧化物颗粒组分4的至少部分颗粒附着到第二混合氧化物颗粒组分5的至少一部分颗粒。

8. 发明申请

US20090084092A1 EXHAUST GAS PURIFYING CATALYST SYSTEM 审中-公开
标题翻译：排气净化催化剂体系
公开(公告)号：US20090084092A1
公开(公告)日：2009-04-02
申请号：US12243063
申请日：2008-10-01
申请人： Seiji MIYOSHI , Hideharu IWAKUNI , Koji MINOSHIMA , Akihide TAKAMI , Masahiko SHIGETSU
发明人： Seiji MIYOSHI , Hideharu IWAKUNI , Koji MINOSHIMA , Akihide TAKAMI , Masahiko SHIGETSU
IPC分类号： F01N3/10
CPC分类号： F01N3/10 , F01N13/009 , F01N2510/067 , F01N2570/16
摘要： Disclosed is an exhaust gas purifying catalyst system, which comprises an upstream catalyst disposed in an exhaust gas passage of an engine at a position on an upstream side with respect to a direction of an exhaust gas stream, and a downstream catalyst disposed in the exhaust gas passage at a position on a downstream side with respect to the direction of the exhaust gas stream. In the exhaust gas purifying catalyst system, the downstream catalyst includes a cerium (Ce)-containing rhodium-doped composite oxide and an Ni component, and the upstream catalyst includes a cerium (Ce)-containing composite oxide other than the rhodium-doped composite oxide, and a Ni component. A ratio of Ni to CeO2 in the upstream catalyst is in the range of 15 to 20 mass %, and a ratio of Ni to CeO2 in the downstream catalyst is in the range of 10 to 60 mass %. The exhaust gas purifying catalyst system of the present invention can reduce an amount of H2S emission while achieving high purification performance.
摘要翻译：公开了一种废气净化催化剂体系，其包括在排气流方向的上游侧的位置处配置在发动机的排气通路中的上游催化剂，以及配置在排气中的下游催化剂相对于废气流的方向在下游侧的位置处的通道。在排气净化催化剂体系中，下游催化剂包括含铈（Ce）的铑掺杂复合氧化物和Ni成分，上游催化剂包含除铑掺杂复合氧化物以外的含铈（Ce）氧化物和Ni组分。上游催化剂中的Ni与CeO 2的比例为15〜20质量％，下游催化剂中的Ni与CeO 2的比例为10〜60质量％。本发明的废气净化催化剂体系可以在实现高纯化性能的同时，减少H2S排放量。

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