公开(公告)号：US06500392B2

公开(公告)日：2002-12-31

申请号：US08985206

申请日：1997-12-04

申请人： Hiroshige Mizuno ,  Naomi Noda ,  Yukinari Shibagaki ,  Akira Takahashi

发明人： Hiroshige Mizuno ,  Naomi Noda ,  Yukinari Shibagaki ,  Akira Takahashi

IPC分类号： B01D5392

CPC分类号： B01D53/945 ,  B01J23/58 ,  B01J37/0248 ,  F01N3/28 ,  Y02A50/2324 ,  Y02T10/22

摘要： A catalyst for exhaust gas purification is capable of purifying the hydrocarbons, nitrogen oxides and carbon monoxide present in the exhaust gas discharged from an internal combustion engine. The catalyst has a monolithic carrier and a catalyst layer containing Pd, Ba and a heat-resistant inorganic oxide, formed on the carrier. The amount of Pd supported on monolithic carrier is 100-300 g per ft3 of monolithic carrier (3.53×10−3 to 1.06×10−2 g per cc of monolithic carrier), the amount of Ba supported on monolithic carrier is 0.010-0.060 g per cc of monolithic carrier in terms of BaO, and the weight ratio of Pd and Ba as expressed as BaO is 1:2 to 1:10. This catalyst for exhaust gas purification is superior particularly in hydrocarbon purification for a low-temperature fuel-rich exhaust gas (such as exhaust gas emitted during cold start) of automobile.

摘要翻译： 用于排气净化的催化剂能够净化从内燃机排出的废气中存在的烃，氮氧化物和一氧化碳。 催化剂具有整体式载体和在载体上形成的含有Pd，Ba和耐热无机氧化物的催化剂层。 在整体式载体上负载的Pd的量为100-300g / ft 3的整体式载体（3.53×10 -3至1.06×10 -2 g / cc的整体式载体），负载在单片载体上的Ba的量为0.010-0.060g / cc的整体载体，BaO表示的Pd和Ba的重量比为1:2〜1:10。 用于排气净化的催化剂在汽车的低温富油废气（例如冷启动时排出的废气）的碳氢化合物净化中尤其优异。

公开(公告)号：US5266278A

公开(公告)日：1993-11-30

申请号：US968670

申请日：1992-10-30

申请人： Takashi Harada ,  Fumio Abe ,  Hiroshige Mizuno

发明人： Takashi Harada ,  Fumio Abe ,  Hiroshige Mizuno

IPC分类号： F01N3/20 ,  H05B3/12 ,  F01N3/10 ,  B01D53/36 ,  H05B3/10

CPC分类号： F01N3/2026 ,  H05B3/12 ,  Y02T10/26 ,  Y10S55/30

摘要： A honeycomb heater having integrally formed and/or integrally sintered electrodes constructed of a metallic honeycomb structure having a desired honeycomb configuration, and metallic electrodes which are integrally sintered with the honeycomb structure at predetermined positions thereon. The honeycomb heater having integrally sintered electrodes is manufactured by joining or contacting the electrode-like formed bodies to the formed honeycomb body, and then by sintering the formed honeycomb body with the electrode-like formed bodies attached or contacted thereto. The electrodes are made of the same material as that of the honeycomb body, or of a material having an electric resistance lower than that of the material comprising the honeycomb body. Alternatively, the honeycomb heater having integrally formed and integrally sintered electrodes is manufactured by preparing an extrusion of a honeycomb body as one body which has a honeycomb configuration and an electrode-like shape at predetermined positions thereon, and then sintering that formed honeycomb body.

摘要翻译： 具有由具有所需蜂窝结构的金属蜂窝结构体构成的整体形成和/或整体烧结的电极的蜂窝式加热器以及与蜂窝结构体在其上的预定位置一体烧结的金属电极。 具有整体烧结电极的蜂窝式加热器通过将电极形成体与形成的蜂窝体接合或接触而制成，然后通过将形成的蜂窝体与附着或接触的电极状成形体烧结而形成。 电极由与蜂窝体相同的材料或具有比包含蜂窝体的材料的电阻低的材料制成。 或者，具有整体形成和整体烧结的电极的蜂窝式加热器通过将蜂窝体作为一体在其预定位置上预定的蜂窝结构和电极形状的一体制备，然后烧结形成的蜂窝体来制造。

公开(公告)号：US5264186A

公开(公告)日：1993-11-23

申请号：US581987

申请日：1990-09-14

申请人： Takashi Harada ,  Fumio Abe ,  Hiroshige Mizuno

发明人： Takashi Harada ,  Fumio Abe ,  Hiroshige Mizuno

IPC分类号： F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  H05B3/12 ,  B01D53/36

CPC分类号： F01N3/2026 ,  F01N3/2053 ,  H05B3/12 ,  F01N2330/14 ,  Y02T10/26 ,  Y10S55/30

摘要： The catalytic converter includes a first flow passage for an automotive exhaust gas and a second flow passage disposed parallel to the first flow passage to bypass the exhaust gas therethrough. The first flow passage contains a honeycomb heater or a heater catalyst which comprises a honeycomb heater with a catalyst carried thereon. At the beginning of an operation of any engine, the exhaust gas whose temperature is low is caused to flow through the first flow passage. When the temperature of the exhaust gas exceeds a predetermined value, the flow passage is switched from the first passage to the second flow passage.

摘要翻译： 催化转化器包括用于汽车废气的第一流动通道和与第一流动通道平行设置以绕过废气的第二流动通道。 第一流路包含蜂窝式加热器或加热器催化剂，该催化剂包括其上载有催化剂的蜂窝式加热器。 在任何发动机的操作开始时，使温度低的废气流过第一流路。 当废气的温度超过预定值时，流道从第一通道切换到第二流动通道。

公开(公告)号：US5229080A

公开(公告)日：1993-07-20

申请号：US853007

申请日：1992-03-17

申请人： Fumio Abe ,  Takashi Harada ,  Hiroshige Mizuno

发明人： Fumio Abe ,  Takashi Harada ,  Hiroshige Mizuno

IPC分类号： F01N3/20 ,  H05B3/12

CPC分类号： H05B3/12 ,  F01N3/2026 ,  F01N3/2053 ,  F01N2330/14 ,  Y02T10/26 ,  Y10S55/30

摘要： A resistance adjusting type heater including a honeycomb structure with at least two electrodes provided thereon to supply a current to the honeycomb structure and with resistance adjusting elements provided between the electrodes. The resistance adjusting elements are formed such that a cross-section of a heating portion of the heater is substantially the same as that of a main monolithic catalyst. A catalytic converter includes the resistance adjusting heater which is disposed upstream of a main monolithic catalyst or between main monolithic catalysts. Also, the catalytic converter includes a resistance adjusting heater which is disposed downstream of a main monolithic catalyst. This resistance adjusting heater comprises a honeycomb structure with a catalyst carried thereon, with at least two electrodes provided thereon to supply a current to the honeycomb structure and with a resistance adjusting elements provided between the electrodes. The resistance adjusting elements are formed such that the cross-section of a heating portion of the heater is substantially the same as that of the main monolithic catalyst.

摘要翻译： 一种电阻调节型加热器，包括蜂窝结构，其上设置有至少两个电极，以向蜂窝结构提供电流以及设置在电极之间的电阻调节元件。 电阻调节元件形成为加热器的加热部分的横截面与主要整体式催化剂的截面基本相同。 催化转化器包括设置在主单片催化剂上游或主要整体催化剂之间的电阻调节加热器。 此外，催化转化器还包括电阻调节加热器，其设置在主单片催化剂的下游。 该电阻调节加热器包括其上载有催化剂的蜂窝结构，其上设置有至少两个电极以向蜂窝结构提供电流，并且在电极之间设置电阻调节元件。 电阻调节元件形成为使得加热器的加热部分的横截面与主要整体式催化剂的截面基本相同。

公开(公告)号：US4767309A

公开(公告)日：1988-08-30

申请号：US58123

申请日：1987-06-04

申请人： Hiroshige Mizuno ,  Satoru Inoue

发明人： Hiroshige Mizuno ,  Satoru Inoue

IPC分类号： B28B3/26 ,  B28B3/20 ,  F01N3/28 ,  B28B21/54 ,  B29C47/12

CPC分类号： B28B3/269 ,  F01N3/2828 ,  F01N2330/06

摘要： An extruding die for forming finned ceramic honeycomb structures includes extruding forming grooves for extruding a ceramic material therethrough and a plurality of material supply apertures for supplying the ceramic material into the extruding die. The extruding forming grooves open at a front surface of the extruding die and intersect with each other in the form of a mesh corresponding to a sectional configuration of a ceramic honeycomb structure. The material supply apertures open at a rear surface of the extruding die and communicate with the extruding forming grooves at intersecting zones thereof. The extruding die comprises fin forming grooves branched from the extruding forming grooves for forming fins, and the material supply apertures communicate with at least parts of the fin forming grooves. In extruding a ceramic material with this extruding die to form a ceramic honeycomb structure, it is easily formed uniform in density in its entirety including fins, thereby completely preventing the fins from falling off during extruding and preventing cracks from occurring in drying or firing.

摘要翻译： 用于形成翅片状陶瓷蜂窝结构体的挤出模具包括用于挤出陶瓷材料的挤出成形槽和用于将陶瓷材料供给到挤出模具中的多个材料供给孔。 挤出成形槽在挤出模具的前表面处开口并且以对应于陶瓷蜂窝结构体的截面形状的网格的形式相互交叉。 材料供给孔在挤出模具的后表面处开口，并与挤出成形槽在其相交区域处连通。 挤出模具包括从用于形成翅片的挤出成形槽分支的翅片形成槽，并且材料供应孔与至少部分翅片形成槽连通。 在用该挤出模挤出陶瓷材料以形成陶瓷蜂窝结构体时，其易于形成均匀的整体密度，包括翅片，从而完全防止在挤出过程中翅片脱落并防止在干燥或烧制中发生裂纹。

公开(公告)号：US5427601A

公开(公告)日：1995-06-27

申请号：US767889

申请日：1991-09-30

申请人： Takashi Harada ,  Yoshihiro Fujiwara ,  Fumio Abe ,  Tsuneaki Ohashi ,  Hiroshige Mizuno ,  Kevin R. Brundage ,  Srinivas H. Swaroop ,  David F. Thompson ,  Raja R. Wusirika ,  David S. Weiss

发明人： Takashi Harada ,  Yoshihiro Fujiwara ,  Fumio Abe ,  Tsuneaki Ohashi ,  Hiroshige Mizuno ,  Kevin R. Brundage ,  Srinivas H. Swaroop ,  David F. Thompson ,  Raja R. Wusirika ,  David S. Weiss

IPC分类号： B22F1/00 ,  B01D53/94 ,  B01J23/86 ,  B22F3/11 ,  B22F5/00 ,  C22C32/00 ,  C22C33/02 ,  C22C38/00 ,  C22C29/12 ,  B22F3/00

CPC分类号： C22C32/0026 ,  B01D53/945 ,  B01J23/862 ,  C22C33/0285 ,  Y02T10/22 ,  Y10T428/12611

摘要： A sintered metal body is disclosed of composition consisting essentially of in weight percent about 5 to 40 Cr, about 2 to 30 Al, 0 to about 5 special metal, 0 to about 4 rare earth oxide additive, and the balance Fe group metal and unavoidable impurities,the composition including at least one component selected from component A and/or component B, component A being special metal, and component B being at least an effective amount of rare earth oxide additive,the special metal being a first special metal component, and optionally, a second special metal component when rare earth oxide additive is 0, the first special metal component consisting of at least one of: Y, lanthanides, Zr, Hf, Ti, Si, and B, and the second special metal component consisting of at least one of: alkaline earth metal, Cu, and Sn, and the special metal being a third special metal component when rare earth oxide additive is >0, the third special metal component consisting of at least one of Y, lanthanides, Zr, Hf, Ti, Si, alkaline earth metal, B, Cu, and Sn.The body is excellent in oxidation resistance at high temperatures, heat resistance, and corrosion resistance, and can be suitably used by itself as a carrier for catalysts, for exhaust gas purification, etc., or as a monolith catalyst comprising catalyst carrier and catalyst supported thereon, and as a heater or catalytic converter by providing electrodes on the body.

摘要翻译： 公开了一种烧结金属体，其组成主要包括重量百分比约5至40 Cr，约2至30种Al，0至约5种特殊金属，0至约4种稀土氧化物添加剂，余量为Fe族金属，不可避免 杂质，所述组合物包含选自组分A和/或组分B中的至少一种组分，组分A为特殊金属，组分B为至少有效量的稀土氧化物添加剂，所述特殊金属为第一特殊金属组分， 以及任选地，当稀土氧化物添加剂为0时的第二特殊金属组分，所述第一特殊金属组分由以下中的至少一种组成：Y，镧系元素，Zr，Hf，Ti，Si和B，并且所述第二特殊金属组分 的碱土金属，Cu和Sn中的至少一种，当稀土氧化物添加剂为> 0时，特殊金属是第三种特殊金属组分，第三种特殊金属组分由Y，镧系元素，Zr中的至少一种组成 ， H f，Ti，Si，碱土金属，B，Cu和Sn。 本体在高温下的耐氧化性，耐热性和耐腐蚀性优异，可以适合用作催化剂载体，废气净化等，或作为包含催化剂载体和催化剂的整料催化剂 以及作为加热器或催化转化器，通过在主体上设置电极。

公开(公告)号：US5292485A

公开(公告)日：1994-03-08

申请号：US955247

申请日：1992-10-01

申请人： Takashi Harada ,  Hiroshige Mizuno ,  Fumio Abe ,  Tsuneaki Ohashi

发明人： Takashi Harada ,  Hiroshige Mizuno ,  Fumio Abe ,  Tsuneaki Ohashi

IPC分类号： B01D39/20 ,  B01J35/00 ,  B01J35/04 ,  B22F3/11 ,  F01N3/20 ,  F01N3/28 ,  H05B3/12 ,  F01N3/10 ,  B21D39/00

CPC分类号： B01D39/2093 ,  B01D39/2034 ,  B01J35/0033 ,  B01J35/04 ,  B22F3/1115 ,  F01N3/2026 ,  F01N3/2803 ,  H05B3/12 ,  B01D2239/0478 ,  B01D2239/10 ,  F01N2330/14 ,  Y02T10/26 ,  Y10T428/12042 ,  Y10T428/12056 ,  Y10T428/1234 ,  Y10T428/12611

摘要： A heat-resistant metallic monolith, manufactured by forming metal powders into a honeycomb structure and by sintering the structure, has a heat-resistant metal oxide coated on the surface of the cell walls and that of the pores thereof. Such a heat-resistant metallic monolith is manufactured by mixing metal powders, an organic binder and water to prepare a mixture, by forming the mixture into a shape of a desired honeycomb configuration, by sintering the shape in a non-oxidizing atmosphere at a temperature between 1000.degree. and 1450.degree. C. and then by coating a heat-resistant metal oxide on a surface of the cell walls and that of the pores of the obtained sintered body.

摘要翻译： 通过将金属粉末形成为蜂窝结构体并通过烧结该结构而制造的耐热金属整体，具有涂覆在孔壁表面和孔的表面上的耐热金属氧化物。 通过将金属粉末，有机粘合剂和水混合以制备混合物，通过将混合物形成为所需蜂窝结构的形状，通过在非氧化性气氛中在温度下烧结形状来制造这种耐热金属整料 在1000度至1450摄氏度之间，然后通过在所述单元壁的表面和所获得的烧结体的孔的表面上涂覆耐热金属氧化物。

公开(公告)号：US5234668A

公开(公告)日：1993-08-10

申请号：US853005

申请日：1992-03-17

申请人： Takashi Harada ,  Fumio Abe ,  Hiroshige Mizuno

发明人： Takashi Harada ,  Fumio Abe ,  Hiroshige Mizuno

IPC分类号： F01N3/20 ,  H05B3/12

CPC分类号： F01N3/2053 ,  F01N3/2026 ,  H05B3/12 ,  F01N2330/14 ,  Y02T10/26 ,  Y10S55/30 ,  Y10T428/24149

摘要： A catalytic converter suitable for use in controlling automotive exhaust emissions including honeycomb heaters which are respectively disposed upstream and downstream of a main monolithic catalyst. Each honeycomb heater includes a honeycomb structure with at least two electrodes provided thereon to supply a current to the honeycomb structure.

摘要翻译： 一种适用于控制汽车排气排放的催化转化器，包括蜂窝式加热器，其分别设置在主单片催化剂的上游和下游。 每个蜂窝式加热器包括蜂窝结构，其中设置有至少两个电极以向蜂窝结构提供电流。

公开(公告)号：US5200154A

公开(公告)日：1993-04-06

申请号：US581985

申请日：1990-09-14

申请人： Takashi Harada ,  Fumio Abe ,  Hiroshige Mizuno

发明人： Takashi Harada ,  Fumio Abe ,  Hiroshige Mizuno

IPC分类号： F01N3/20 ,  H05B3/03 ,  H05B3/12

CPC分类号： F01N3/2026 ,  H05B3/12 ,  Y02T10/26

摘要： A honeycomb heater having integrally formed and/or integrally sintered electrodes comprises a honeycomb structure having a desired honeycomb configuration, and electrodes which are integrally sintered with the honeycomb structure at predetermined positions thereon. The honeycomb heater having integrally sintered is manufactured by joining or contacting the electrode-like formed bodies to the formed honeycomb body, and then by sintering the formed honeycomb body with the electrode-like formed bodies attached or contacted thereto. The electrodes are made of the same material as that of the honeycomb body, or of a material having an electric resistance lower than that of the material comprising the honeycomb body. Alternatively, the honeycomb heater having integrally formed and integrally sintered electrodes is manufactured by preparing an extrusion of a honeycomb body as one body which has a honeycomb configuration and an electrode-like shape at predetermined positions thereon, and then sintering that formed honeycomb body.

公开(公告)号：US06517785B2

公开(公告)日：2003-02-11

申请号：US09120888

申请日：1998-07-23

申请人： Naomi Noda ,  Yukinari Shibagaki ,  Akira Takahashi ,  Hiroshige Mizuno

发明人： Naomi Noda ,  Yukinari Shibagaki ,  Akira Takahashi ,  Hiroshige Mizuno

IPC分类号： B01D5394

CPC分类号： F01N3/0835 ,  B01D53/9486 ,  B01D2253/108 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  F01N3/0814

摘要： A system for exhaust gas purification disposed in the exhaust pipe of an internal combustion engine, includes (1) an adsorbent comprising a monolithic carrier and (2) an adsorbent component having a hydrocarbon adsorptivity, loaded on the carrier, and a catalyst comprising a monolithic carrier and a catalyst component loaded on the carrier, having a purifiability for the harmful substances present in the exhaust gas emitted from the engine. The catalyst is provided downstream of the adsorbent in the flow direction of the exhaust and it can remove the hydrocarbons generated during engine cold gas. The adsorbent has a sectional shape satisfying the following relation: 1.2≦(major axis)/(minor axis)≦6.5 This system enables the desorption of hydrocarbons from the adsorbent in a longer time and can remove the hydrocarbon generated during engine cold start at a higher purification ratio.

摘要翻译： 一种设置在内燃机的排气管中的废气净化系统，包括（1）包含整体式载体的吸附剂和（2）负载在载体上的具有烃吸附性的吸附剂成分，以及包含单片 载体和负载在载体上的催化剂组分，对从发动机排放的废气中存在的有害物质具有可净化性。 催化剂在排气的流动方向上设置在吸附剂的下游，并且可以除去在发动机冷气体期间产生的烃。 吸附剂具有满足以下关系的截面形状：该系统能够在更长时间内从吸附剂中解吸烃，并且可以以较高的净化比除去发动机冷起动期间产生的烃。