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1. 发明专利

JP2006037811A Exhaust emission control device for internal combustion engine and exhaust emission control method 审中-公开
标题翻译：用于内燃机排气控制装置和排气控制方法
公开(公告)号：JP2006037811A
公开(公告)日：2006-02-09
申请号：JP2004217431
申请日：2004-07-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHINOTSUKA NORIHIRO , KURODA OSAMU , KITAHARA YUICHI , WATANABE HIROKO , INOUE TAKESHI
IPC分类号： F01N3/24 , B01D53/94 , F01N3/08 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To simplify a replenishing device of NOx capturing component as compared with conventional technology solving out NOx capturing component of which NOx capturing capacity drops after a predetermined distance travel and newly supplying solution containing NOx capturing component and heating to dry and sinter to recover NOx capturing capacity of a lean NOx catalyst of which NOx capturing capacity drops due to SOx poisoning. SOLUTION: A catalyst component replenishing device for replenishing catalyst component in an upstream of the lean NOx catalyst in an exhaust gas flow passage is provided to replenish catalyst component in a exhaust gas flow passage at a time of engine on, engine off or both. Since replenishing quantity of catalyst component per once can be a little, catalyst component can be sintered with using heat possessed by exhaust gas and replenished catalyst component can be carried on a lean NOx catalyst surface. This invention is suitable for replenishing NOx capturing component. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了简化NOx捕获组分的补充装置，与常规技术解决在预定距离行驶后NOx捕获能力下降的NOx捕获组分，并且新提供含有NOx捕获组分的溶液并加热干燥并进行烧结，以回收NOx吸收能力由于SOx中毒而下降的稀NOx催化剂的NOx捕集能力。解决方案：提供一种用于在排气流动通道中的贫NOx催化剂的上游补充催化剂组分的催化剂组分补充装置，以在发动机起动，发动机关闭时补充排气流动通道中的催化剂组分，或都。由于每一次催化剂组分的补充量可以少一些，催化剂组分可以使用废气所具有的热量进行烧结，而补充催化剂组分可以在贫NOx催化剂表面上进行。本发明适用于补充NOx捕获组分。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2006046200A Exhaust emission control filter for diesel internal combustion engine, method for manufacturing the same, and exhaust emission control device 审中-公开
标题翻译：用于柴油内燃机的排气控制过滤器，其制造方法和排气控制装置
公开(公告)号：JP2006046200A
公开(公告)日：2006-02-16
申请号：JP2004229134
申请日：2004-08-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE HIROKO , KURODA OSAMU , KITAHARA YUICHI , INOUE TAKESHI , SHINOTSUKA NORIHIRO , IIZUKA HIDEHIRO
IPC分类号： F01N3/02 , B01D46/00 , B01D53/94 , B01J35/04 , F01N3/08 , F01N3/28
CPC分类号： F01N3/035 , B01D46/0001 , B01D46/0063 , B01D46/2451 , B01D46/2459 , B01D53/9431 , B01D53/9454 , B01D2258/012 , F01N3/0222 , F01N3/0821 , F01N3/0835 , F01N3/0842 , F01N3/281 , F01N3/2828 , F01N13/0097 , Y02T10/22
摘要： PROBLEM TO BE SOLVED: To resolve difficulty of sealing in a diesel exhaust emission control filter burning and removing collected particulate by alternately sealing both ends of a cell opening part of a honeycomb structure body to make exhaust gas pass through a cell side wall and flow in an adjoining cell and forming a catalyst layer on the cell side wall. SOLUTION: The catalyst layer is not provided on a part on which sealing material of the filter is adhered and base material of the honeycomb structure body is exposed. When the sealing material is adhered on the part of the catalyst layer, adhering force of the sealing material becomes low and a sealing part easily comes off by impact or the like since the catalyst layer is fragile and a surface is rough. Adhering force of the sealing material can be increased for the sealing material not to easily come off by exposing base material of the honeycomb structure body and adhering the sealing material there. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了解决柴油机废气排放控制过滤器中的密封难以通过交替地密封蜂窝结构体的单元开口部分的两端来燃烧和去除所收集的颗粒，以使废气通过单元侧壁并在相邻的电池中流动并在电池侧壁上形成催化剂层。解决方案：在过滤器的密封材料粘附的部分上没有设置催化剂层，并且蜂窝结构体的基材露出。当密封材料粘附在催化剂层的一部分上时，由于催化剂层脆弱并且表面粗糙，密封材料的粘附力变低，并且通过冲击等易于脱离密封部。密封材料的附着力可以增加，密封材料不易通过使蜂窝结构体的基材暴露并将密封材料粘附在其上而容易脱落。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004243189A Purifying apparatus for exhaust gas of internal combustion engine 审中-公开
公开(公告)号：JP2004243189A
公开(公告)日：2004-09-02
申请号：JP2003034493
申请日：2003-02-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KURODA OSAMU , DOI RYOTA , WATANABE HIROKO
IPC分类号： F01N3/02 , B01D53/94 , B01J23/58 , B01J35/04 , F01N3/08 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To effectively purify all of PM (particulate matter), NOx, HC and CO in an exhaust gas of a diesel engine. SOLUTION: A wall flow type catalyzed monolithic honeycomb filter and a purifying apparatus using the filter are provided with a NOx trapping catalyst layer containing no alkali metal on the inner surface of the cell constituting the entrance passage of the exhaust gas, and with a NOx trapping catalyst layer containing at least an alkali metal on the inner surface of the cell constituting the exit passage of the exhaust gas. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2007152303A Hydrogen-producing catalyst 审中-公开
标题翻译：氢化催化剂
公开(公告)号：JP2007152303A
公开(公告)日：2007-06-21
申请号：JP2005354292
申请日：2005-12-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGAYAMA TOSHIAKI , IIZUKA HIDEHIRO , MUKAIDE MASAAKI , KANAE MASAHITO , WATANABE HIROKO
IPC分类号： B01J23/63 , B01D53/94 , B01J37/02 , C01B3/16 , F01N3/08 , F01N3/10 , F01N3/24
CPC分类号： Y02P20/52
摘要： PROBLEM TO BE SOLVED: To provide a hydrogen-producing catalyst for efficiently producing H 2 which has a high reactivity at a low temperature of 150 to 250°C from CO and H 2 O in exhaust gas and improving, as a result, a degradation in NOx removal rate upon performing lean/rich control in a diesel engine. SOLUTION: The hydrogen-producing catalyst for producing hydrogen from carbon monoxide and water in internal-combustion engine exhaust gas contains: an oxide containing a cerium oxide in which the ratio of (111)-face diffraction peak intensity to background intensity in X-ray diffraction pattern is 4.3 or more; a zirconium oxide; and at least one noble metal selected from Pt, Pd and Rh. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于有效地制备在CO和H

5. 发明专利

JP2005205302A Exhaust gas cleaning catalyst and apparatus for combustion engine 审中-公开
标题翻译：排气清洁催化剂和燃烧发动机装置
公开(公告)号：JP2005205302A
公开(公告)日：2005-08-04
申请号：JP2004013929
申请日：2004-01-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE HIROKO , KURODA OSAMU , KITAHARA YUICHI , INOUE TAKESHI , HIRATSUKA TOSHIFUMI , SHINOTSUKA NORIHIRO
IPC分类号： F01N3/10 , B01D53/94 , B01J23/58 , B01J37/02 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas cleaning catalyst which contains an alkali metal and a noble metal, in which it is restrained that the alkali metal moves to a substrate and deteriorates the NOx capturing capacity of this catalyst and the noble metal is masked with the alkali metal and the thermal durability of which is prevented from being deteriorated. SOLUTION: This exhaust gas cleaning catalyst is provided with an alkali metal layer formed by depositing the alkali metal on a carrier having high compatibility with the alkali metal and a noble metal layer formed by depositing the noble metal on another carrier having low compatibility with the alkali metal. This catalyst is obtained by forming the alkali metal layer as a lower layer and the noble metal layer as an upper layer on the surface of the substrate having low compatibility with the alkali metal. As a result, since the alkali metal and the noble metal are parted from each other and the material of the carrier of the noble metal layer and that of the substrate are formed from the material having low affinity with the alkali metal, the noble metal is hardly masked with the alkali metal and the alkali metal hardly moves to the side of the substrate. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种含有碱金属和贵金属的废气净化催化剂，其中碱金属向基体移动，并且使该催化剂和贵金属的NOx捕获能力恶化金属被碱金属掩蔽，并且防止其耐热性劣化。解决方案：该废气净化催化剂具有通过将碱金属沉积在与碱金属高度相容的载体上形成的碱金属层和通过将贵金属沉积在具有低相容性的另一载体上而形成的贵金属层与碱金属。该催化剂是通过以与碱金属相溶性低的方式形成作为下层的碱金属层和在基材表面上的贵金属层作为上层而获得的。结果，由于碱金属和贵金属彼此分离，贵金属层和基体的载体的材料由与碱金属的亲和性低的材料形成，所以贵金属为几乎不被碱金属掩蔽，碱金属几乎不移动到基板的侧面。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005103409A Exhaust gas cleaning device of internal combustion engine 审中-公开
标题翻译：内燃机排气净化装置
公开(公告)号：JP2005103409A
公开(公告)日：2005-04-21
申请号：JP2003339049
申请日：2003-09-30
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： SHINOTSUKA NORIHIRO , KURODA OSAMU , KITAHARA YUICHI , INOUE TAKESHI , HIRATSUKA TOSHIFUMI , WATANABE HIROKO
IPC分类号： F01N3/10 , B01D53/94 , B01J23/58 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To solve the technical problem that an alkali metal in a lean NOx catalyst has such properties as to move by heat from the inside of a catalyst layer to a cordierite substrate and causes a decrease in the quantity of the alkali metal in the catalyst layer to degrade the catalytic performance. SOLUTION: In the exhaust gas cleaning device, the resistance to movement of an alkali metal is enhanced by decreasing the contact area between a catalyst layer and cordierite, decreasing the quantity and speed of alkali movement. Thus, erosion caused by the movement of an alkali to the substrate is prevented, and the cleaning capability is increased by increasing the quantity of an alkali metal carried by the substrate. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了解决稀有NOx催化剂中的碱金属具有从催化剂层的内部向堇青石基板的热量移动的特性的技术问题，并且导致催化剂层中的碱金属降解催化性能。解决方案：在排气净化装置中，通过减少催化剂层和堇青石之间的接触面积，减少碱运动的量和速度，提高了碱金属的运动阻力。因此，防止了由碱移动到基板的侵蚀，并且通过增加由基板承载的碱金属的量来提高清洗能力。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004162626A Exhaust emission control device 审中-公开
公开(公告)号：JP2004162626A
公开(公告)日：2004-06-10
申请号：JP2002330180
申请日：2002-11-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE HIROKO , KURODA OSAMU , KITAHARA YUICHI , SHINOTSUKA NORIHIRO , KAMIKAWA MASAYUKI
IPC分类号： F01N3/02 , B01D53/86 , F01N3/021 , F01N3/035 , F01N3/08 , F01N3/20 , F01N3/24
CPC分类号： F01N3/2006 , F01N3/021 , F01N3/035 , F01N3/0821 , F01N2240/02 , F01N2240/10 , Y02T10/22 , Y02T10/26
摘要： PROBLEM TO BE SOLVED: To hold a purification catalyst for such as NOx of a diesel internal combustion engine within an operating temperature range, and prevent thermal degradation of a PM capturing means. SOLUTION: In this exhaust emission control device, a temperature in a means for purifying such as NOx of the diesel internal combustion engine is increased to appropriate temperature using PM combustion heat of the particulate (PM) capturing means. In this exhaust emission control device, the PM capturing means and the purification catalyst for such as NOx are surrounded with a good heat conductor or the like, and the heat generated at combustion of the PM is transmitted to the catalyst via the good heat conductor, thereby increasing a temperature of the catalyst to hold it within the appropriate operating temperature range. Since the PM combustion heat is transmitted to the catalyst, the heat is removed from the PM capturing means. Accordingly, abnormal temperature rising in the PM capturing means is restrained to prevent thermal degradation, whereby NOx or the like in exhaust gas of the diesel internal combustion engine is effectively purified. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2007222833A Sulfur-absorbing material and exhaust-gas cleaning apparatus using the same 审中-公开
标题翻译：使用硫磺吸收材料和排气清洁装置
公开(公告)号：JP2007222833A
公开(公告)日：2007-09-06
申请号：JP2006049476
申请日：2006-02-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MUKAIDE MASAAKI , IIZUKA HIDEHIRO , NAGAYAMA TOSHIAKI , KANAE MASAHITO , WATANABE HIROKO
IPC分类号： B01D53/94 , B01D53/86 , B01J20/04 , F01N3/08 , F01N3/10 , F01N3/20 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an exhaust-gas cleaning apparatus free from sulfur poisoning of a catalyst for removing nitrogen oxides in an exhaust-gas cleaning system of a diesel engine and the like, to solve the problem that a special control system is required for reactivation of the catalyst for removing nitrogen oxides poisoned by sulfur or that fuel consumption is increased in reactivation. SOLUTION: A sulfur-absorbing material including a zeolite carrier is installed at the upstream side of the catalyst for removing nitrogen oxides in an exhaust-gas flow. The catalyst for removing nitrogen oxides is prevented from poisoning by practically preventing the absorbed sulfur from escaping under normal conditions of an internal combustion engine. The performance of the sulfur-absorbing material can be improved by combining with an oxidation catalyst. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种排气净化装置，其不含有用于除去柴油发动机等的排气净化系统中的氮氧化物的催化剂的硫中毒，为了解决特殊控制需要用于催化剂再活化以除去由硫中毒的氮氧化物或者再活化中燃料消耗增加的系统。解决方案：包含沸石载体的吸硫材料安装在催化剂的上游侧，用于排出废气流中的氮氧化物。通过实际上防止吸收的硫在内燃机的正常条件下逸出，可以防止除去氮氧化物的催化剂中毒。可以通过与氧化催化剂结合来改善硫磺吸收材料的性能。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007029832A Sulfur content removing material and exhaust purification system in internal combustion engine 有权
标题翻译：内燃机中的硫含量去除材料和排气净化系统
公开(公告)号：JP2007029832A
公开(公告)日：2007-02-08
申请号：JP2005215215
申请日：2005-07-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IIZUKA HIDEHIRO , MUKAIDE MASAAKI , NAGAYAMA TOSHIAKI , WATANABE HIROKO
IPC分类号： B01D53/94 , B01D53/50 , B01D53/81 , B01J20/04 , B01J23/58 , F01N3/08 , F01N3/10 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To provide a system in which a nitrogen oxide purification catalyst does not receive a sulfur poisoning in an exhaust purification system such as a diesel engine. SOLUTION: In the exhaust purification system, an upper layer of a honeycomb structural member is coated with a sulfur content absorber containing mainly an alkali metal containing compound, an alkaline earth metal containing compound, etc., and a sulfur content removing material 3 in which an upper layer of the sulfur content absorber is coated with an oxidizing material is installed at an upstream side of the exhaust against the nitrogen oxide purification catalyst. The poisoning prevention of the nitrogen oxide purification catalyst is carried out without a substantial desorption of the once absorbed sulfur content in the context of the normal internal combustion engine. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种其中氮氧化物净化催化剂在诸如柴油发动机的排气净化系统中不会受到硫中毒的系统。解决方案：在排气净化系统中，蜂窝结构构件的上层涂覆有主要含有碱金属的化合物，含碱土金属的化合物等的硫含量吸收剂和含硫去除材料 3，其中在氧化物净化催化剂的排气的上游侧安装有硫含量吸收器的上层用氧化剂涂覆的上层。氮氧化物净化催化剂的中毒防止在正常内燃机的背景下不经过一次吸收的硫含量的显着解吸而进行。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006192365A Catalyst for cleaning exhaust gas from internal-combustion engine, method for manufacturing the catalyst, and exhaust gas-cleaning apparatus 审中-公开
标题翻译：用于从内燃机清洁排气的催化剂，制造催化剂的方法和排气清洁装置
公开(公告)号：JP2006192365A
公开(公告)日：2006-07-27
申请号：JP2005006073
申请日：2005-01-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE HIROKO , KURODA OSAMU , KITAHARA YUICHI , INOUE TAKESHI , SHINOTSUKA NORIHIRO , IIZUKA HIDEHIRO
IPC分类号： B01J35/04 , B01D53/94 , B01J23/58 , B01J37/02 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide a catalyst for cleaning exhaust gas from an internal-combustion engine, which contains a noble metal as a catalytically active component and in which the usage of the noble metal is reduced. SOLUTION: This catalyst for cleaning exhaust gas has a porous-carrier layer on the surface of a base material and the catalytically active component on the surface of a carrier. A noble metal particle is deposited only on the surface or its vicinity of the carrier layer where exhaust gas is circulated. A noble metal-suspended solution is prepared by a method for destroying an ion balance of a noble metal ion-containing solution, the carrier layer formed on the monolithic honeycomb base material is impregnated with the prepared noble metal-suspended solution and the noble metal particle-deposited base material is fired so that the noble metal particle can be deposited on the surface of the carrier layer while being distributed unevenly. The usage of the noble metal can be made lower in comparison with such a case that the noble metal is deposited on the whole surface of the carrier having pores. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种用于清洁来自内燃机的废气的催化剂，所述内燃机含有贵金属作为催化活性组分，并且贵金属的用量减少。解决方案：用于清洁废气的催化剂在基材的表面上具有多孔载体层，并且在载体的表面上具有催化活性组分。贵金属颗粒仅沉积在废气循环的载体层的表面或其附近。通过破坏含贵金属离子的溶液的离子平衡的方法制备贵金属悬浮液，在整体式蜂窝基材上形成的载体层用制备的贵金属悬浮液和贵金属颗粒浸渍烧结的基材被烧制，使得贵金属颗粒可以沉积在载体层的表面上，同时分布不均匀。与贵金属沉积在具有孔的载体的整个表面上的情况相比，贵金属的使用可以降低。版权所有（C）2006，JPO＆NCIPI

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