Sintered metal bodies and manufacturing method therefor
    2.
    发明授权
    Sintered metal bodies and manufacturing method therefor 失效
    烧结金属体及其制造方法

    公开(公告)号:US5427601A

    公开(公告)日:1995-06-27

    申请号:US767889

    申请日:1991-09-30

    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。

    Honeycomb heater having integrally formed electrodes and/or integrally
sintered electrodes and method of manufacturing such honeycomb heater
    5.
    发明授权
    Honeycomb heater having integrally formed electrodes and/or integrally sintered electrodes and method of manufacturing such honeycomb heater 失效
    具有整体形成的电极和/或整体烧结电极的蜂窝状加热器和制造这种蜂窝状加热器的方法

    公开(公告)号:US5200154A

    公开(公告)日:1993-04-06

    申请号:US581985

    申请日:1990-09-14

    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.

    System for exhaust gas purification
    6.
    发明授权
    System for exhaust gas purification 失效
    废气净化系统

    公开(公告)号:US06350416B2

    公开(公告)日:2002-02-26

    申请号:US09093789

    申请日:1998-06-09

    IPC分类号: B01D5334

    摘要: A system for exhaust gas purification disposed in the exhaust pipe of an internal combustion engine, includes an adsorbent formed by loading, on a monolithic carrier, (1) a zeolite containing at least one kind of ion of an element having an electronegativity of 1.40 or more and (2) a catalyst material formed by loading at least one kind of noble metal selected from Pt, Pd and Rh on a heat-resistant inorganic oxide, and at least one loaded carrier formed by loading, on a monolithic carrier, a catalyst component having a purifiability for the harmful substances present in the exhaust gas emitted from the engine and/or an adsorbent component having an adsorptivity for the hydrocarbons also present in the exhaust gas, the loaded carrier being provided upstream of the adsorbent in the flow direction of the exhaust gas and having a total volume of 0.6 l or more. In this system for exhaust gas purification, the thermal deterioration of the adsorbent is reduced because there is used an adsorbent of higher HC desorption start temperature and because the thermal load applied to the adsorbent is decreased by the use of a particular means.

    摘要翻译: 一种设置在内燃机的排气管中的废气净化系统,包括通过在整体式载体上装载(1)含有至少一种具有1.40的电负性的元素的离子的沸石形成的吸附剂,或 更多和(2)通过将选自Pt,Pd和Rh中的至少一种贵金属负载在耐热无机氧化物上形成的催化剂材料,以及通过在整体式载体上负载催化剂形成的至少一种负载载体 具有对从发动机排出的排气中存在的有害物质具有可净化性的成分和/或对废气中也存在的具有对烃的吸附性的吸附剂成分,负载载体在吸附剂的流动方向上游侧设置 废气,总体积为0.6l以上。 在这种废气净化系统中,由于使用HC解吸开始温度较高的吸附剂,因为通过使用特定的方法降低了对吸附剂的热负荷,所以吸附剂的热劣化降低。

    Method of operating catalytic converter
    7.
    发明授权
    Method of operating catalytic converter 失效
    操作催化转化器的方法

    公开(公告)号:US5286460A

    公开(公告)日:1994-02-15

    申请号:US965013

    申请日:1992-10-23

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

    摘要: In a catalytic converter operating method according to the present invention, a heater is energized at a predetermined power level or above and thereby heated substantially concurrently with the operation of an engine. During the heating, an oxidizing gas is introduced into the catalytic converter. When the temperature of the heater exceeds a value at which a main catalyst of the catalytic converter or a light-off catalyst carried on the heater functions, the power level is reduced by an output adjuster and supply of the oxidizing gas is suspended.

    摘要翻译: 在根据本发明的催化转化器操作方法中,加热器以预定的功率水平或更高的水平通电,从而与发动机的操作基本同时加热。 在加热期间,将氧化气体引入催化转化器。 当加热器的温度超过催化转化器的主催化剂或负载在加热器上的点火催化剂的功能时,通过输出调节器降低功率水平,并且中断氧化气体的供给。

    Catalyst for exhaust gas purification and system for exhaust gas purification
    9.
    发明授权
    Catalyst for exhaust gas purification and system for exhaust gas purification 失效
    废气净化催化剂和废气净化系统

    公开(公告)号:US06500392B2

    公开(公告)日:2002-12-31

    申请号:US08985206

    申请日:1997-12-04

    IPC分类号: B01D5392

    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。

    Honeycomb heater having integrally formed electrodes and/or integrally
sintered electrodes and method of manufacturing such honeycomb heater
    10.
    发明授权
    Honeycomb heater having integrally formed electrodes and/or integrally sintered electrodes and method of manufacturing such honeycomb heater 失效
    具有整体形成的电极和/或整体烧结电极的蜂窝式加热器及其制造方法

    公开(公告)号:US5266278A

    公开(公告)日:1993-11-30

    申请号:US968670

    申请日:1992-10-30

    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。