-
11.发明授权
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
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
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
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：US06517785B2
公开(公告)日：2003-02-11
申请号：US09120888
申请日：1998-07-23
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。
-
15.发明授权
公开(公告)号：US06139808A
公开(公告)日：2000-10-31
申请号：US985523
申请日：1997-12-05
CPC分类号： B01D53/945 , B01J23/58 , B01J37/0215 , 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 carrier and a catalyst layer containing at least one kind of noble metal, Ba and Cs, formed on the carrier. This catalyst for exhaust gas purification is improved in hydrocarbon purification ability 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。 催化剂具有载体和催化剂层，该载体和载体上形成有至少一种贵金属Ba和Cs。 用于废气净化的催化剂对于汽车的低温富燃料废气（例如冷启动时排放的废气）的烃净化能力提高。
-
公开(公告)号：US5229079A
公开(公告)日：1993-07-20
申请号：US852508
申请日：1992-03-17
申请人： Takashi Harada , Fumio Abe , Hiroshige Mizuno
发明人： Takashi Harada , Fumio Abe , Hiroshige Mizuno
CPC分类号： F01N3/2026 , F01N3/2053 , H05B3/12 , F01N2330/14 , Y02T10/26 , Y10S55/30
摘要： A catalytic converter suitable for use in controlling automotive exhaust emissions including a honeycomb heater disposed downstream of a main monolithic catalyst or between main monolithic catalysts. The honeycomb heater includes a honeycomb structure with a catalyst carried thereon and with at least two electrodes provided thereon to supply a current thereto. A catalytic converter also includes a monolith catalyst for ignition which is disposed downstream of the honeycomb heater. A catalytic converter includes, in place of the honeycomb heater and the monolithic catalyst, a module which is composed of a catalyzed light-off honeycomb heater or of a honeycomb heater and a light-off monolithic catalyst. The module is removably disposed upstream or downstream of a main monolithic catalyst, or between main monolithic catalysts.
摘要翻译： 一种适用于控制汽车废气排放的催化转化器，包括设置在主要整体式催化剂下游或主要整体式催化剂之间的蜂窝式加热器。 蜂窝式加热器包括蜂窝结构，其上载有催化剂，并且在其上设置有至少两个电极以向其提供电流。 催化转化器还包括设置在蜂窝式加热器下游的用于点火的整料催化剂。 催化转化器包括代替蜂窝式加热器和整体式催化剂的由催化的灭火蜂窝式加热器或蜂窝式加热器和点火式整体式催化剂组成的组件。 模块可拆卸地设置在主整体式催化剂的上游或下游，或主要整体式催化剂之间。
-
17.发明授权Resistance heater, catalytic converter and method of operating catalytic converter 失效电阻加热器，催化转化器和操作催化转化器的方法
公开(公告)号：US5194229A
公开(公告)日：1993-03-16
申请号：US581988
申请日：1990-09-14
申请人： Fumio Abe , Takashi Harada , Hiroshige Mizuno
发明人： Fumio Abe , Takashi Harada , Hiroshige Mizuno
CPC分类号： F01N3/2026 , H05B3/12 , Y02T10/26
摘要： A resistance heater according to the present invention comprises a honeycomb structure having a large number of passages. The honeycomb structure is provided with at least two electrodes through which a current is supplied thereto. The honeycomb structure also has a means to attain a current density of 5 A/mm.sup.2 or above between the electrodes such as slits within the honeycomb structure. A current is supplied between the electrodes at a current density of 5 A/mm.sup.2 or above.
摘要翻译： 根据本发明的电阻加热器包括具有大量通道的蜂窝结构。 蜂窝结构设置有至少两个电极，通过该电极供应电流。 蜂窝结构体还具有在蜂窝结构体内的狭缝等电极之间达到5A / mm2以上的电流密度的方法。 以5A / mm2或更高的电流密度在电极之间提供电流。
-
公开(公告)号：US5063029A
公开(公告)日：1991-11-05
申请号：US545509
申请日：1990-06-29
申请人： Hiroshige Mizuno , Fumio Abe , Takashi Harada
发明人： Hiroshige Mizuno , Fumio Abe , Takashi Harada
IPC分类号： B01J35/00 , B01J35/02 , B01J35/04 , B22F3/11 , F01N3/20 , F01N3/28 , F02B1/04 , H05B3/12 , H05B3/14
CPC分类号： H05B3/141 , B01J35/0033 , B01J35/04 , B22F3/1115 , F01N3/2026 , F01N3/2803 , H05B3/12 , F01N2330/14 , F02B1/04 , Y02T10/26 , Y10S55/30 , Y10T428/24149
摘要： A resistance adjusting type heater including a honeycomb structure having a large number of passages, at last two electrodes for energizing the honeycomb structure, and a resistance adjusting mechanism such as a slit provided between the electrodes to heat the gas flowing through the passages formed in the honeycomb structure. A catalytic converter includes a main monolith catalyst and the above-described heater placed adjacent to and upstream of the main monolith catalyst. A catalytic converter includes a honeycomb structure having a large number of passages, a catalyst carried on the honeycomb structure, at least two electrodes for energizing the honeycomb structure, and a resistance adjusting mechanism provided between the electrode. A catalytic converter includes a main monolith catalyst, and a heater placed adjacent to and upstream of the main monolith catalyst. The heater includes a honeycomb structure having a large number of passages, a catalyst carried on the honeycomb structure, at least two electrodes for energizing the honeycomb structure, and a resistance adjusting mechanism provided between the electrodes.
摘要翻译： 一种电阻调节型加热器，包括具有大量通道的蜂窝结构，最后两个用于激励蜂窝结构的电极，以及设置在电极之间的电阻调节机构，例如狭缝，以加热流过形成在 蜂窝结构。 催化转化器包括主整体催化剂和与主单体催化剂相邻并在其上游放置的上述加热器。 催化转化器包括具有大量通道的蜂窝结构体，承载在蜂窝结构体上的催化剂，至少两个用于激励蜂窝结构的电极，以及设置在电极之间的电阻调节机构。 催化转化器包括主整体催化剂和放置在主整体催化剂附近和上游的加热器。 加热器包括具有大量通道的蜂窝结构体，蜂窝结构体上承载的催化剂，至少两个用于激励蜂窝结构的电极，以及设置在电极之间的电阻调节机构。
-
19.发明授权
公开(公告)号：US6029441A
公开(公告)日：2000-02-29
申请号：US985205
申请日：1997-12-04
IPC分类号： B01D53/34 , B01D53/72 , B01D53/86 , B01D53/94 , B01J20/18 , B01J23/40 , F01N3/08 , F01N3/20 , F01N3/22 , F01N13/02
CPC分类号： F01N3/0835 , B01D53/9486 , F01N13/009 , F01N3/0814 , F01N3/0871 , F01N3/2013 , F01N3/22 , B01D2255/2045 , B01D2255/2047 , B01D2255/20738 , B01D2255/20784 , F01N2250/12 , Y02T10/26
摘要： A method for exhaust gas purification using an exhaust gas purification system including (a) an adsorbent for adsorbing hydrocarbons in internal combustion engine exhaust gas provided in the engine exhaust pipe, (b) at least one catalyst for reducing harmful substances present in the exhaust gas, provided in the exhaust pipe upstream of the adsorbent in the flow direction of the exhaust gas, (c) at least one catalyst for reducing harmful substances present in the exhaust gas, provided in the exhaust pipe down-stream of the adsorbent in the flow direction of the exhaust gas, (d) a first inlet for introduction of secondary air into exhaust gas, formed in the exhaust pipe upstream of the most downstream catalyst of the catalyst (b), and (e) a second inlet for introduction of secondary air into exhaust gas, formed in the exhaust pipe between the catalyst (b) and the most downstream catalyst of the catalyst (c). Secondary air is introduced from the first inlet at a time from engine start to activation of catalyst (b); when catalyst (b) has been activated, stopping secondary air introduction from the first inlet; meanwhile, introducing secondary air from the second inlet while the hydrocarbons of exhaust gas adsorbed by adsorbent (a) are desorbed therefrom as its temperature rises by the heat of the exhaust gas. This method effectively purifies the hydrocarbons discharged from an internal combustion engine in a large amount during cold start, without adversely affecting the purification of also-discharged NOx.
摘要翻译： 一种排气净化系统的废气净化方法，所述排气净化系统包括：（a）在所述发动机排气管内设置的内燃机废气中吸附烃的吸附剂，（b）至少一种用于还原废气中存在的有害物质的催化剂 ，设置在排气管的上游侧的吸附剂上游侧，（c）至少一个催化剂，其用于减少排气中存在的有害物质，该催化剂设置在流体中的吸附剂的下游侧的排气管 （d）用于将二次空气引入排气中的第一入口，形成在催化剂（b）的最下游催化剂上游的排气管中，和（e）用于引入二次空气的第二入口 在催化剂（b）和催化剂（c）的最下游催化剂之间的排气管中形成空气。 从发动机启动到催化剂（b）活化的时候，从第一入口引入二次空气; 当催化剂（b）已经被活化时，停止从第一入口引入二次空气; 同时，当吸附剂（a）吸附的废气的碳氢化合物随着废气的热量升高而从第二入口引入二次空气时，其被排出。 该方法在冷起动时有效地净化从内燃机排出的烃，而不会对排出的NOx的净化产生不利影响。
-
20.发明授权
公开(公告)号：US5884473A
公开(公告)日：1999-03-23
申请号：US668208
申请日：1996-06-19
IPC分类号： B01D53/72 , B01D53/56 , B01D53/81 , B01D53/86 , B01D53/94 , B01J23/56 , B01J23/58 , B01J23/63 , F01N3/08 , F01N3/28 , F01N3/10 , B01J8/02
CPC分类号： B01D53/9481 , B01D53/945 , B01J23/58 , B01J23/63 , F01N3/0835 , F01N3/0842 , F01N2240/18 , F01N2570/12 , Y02T10/22
摘要： A system for exhaust gas purification disposed in the exhaust pipe of an internal combustion engine, includes followings (i) a catalyst giving an excellent light-off performance at low temperatures, including a carrier and a catalyst layer supported thereon, the catalyst layer including a precious metal and a substance having an electron donatability and/or a nitrogen dioxide absorbability and releasability, and (ii) an adsorbent comprising a carrier and an adsorbent layer having a hydrocarbon adsorbability, supported on the carrier. This system for exhaust gas purification can effectively purify the harmful substances contained in the exhaust gases discharged from internal combustion engines of automobiles, etc., particularly the hydrocarbons discharged in a large amount from a gasoline engine during cold start.
摘要翻译： 一种设置在内燃机的排气管内的废气净化系统，包括以下（i）在低温下具有优异的起火性能的催化剂，其包括载体和负载在其上的催化剂层，所述催化剂层包括 贵金属和具有电子不足性和/或二氧化氮吸收性和脱模性的物质，和（ii）负载在载体上的载体和具有烃吸附性的吸附剂的吸附剂。 这种废气净化系统能够有效地净化汽车内燃机等排出的废气中所含的有害物质，特别是在冷起动时从汽油发动机大量排出的烃。
-
-
-
-
-
-
-
-
-
搜索结果
23 条记录 (耗时 0.017 秒)
