Ceramic sliding member and method of manufacturing the same
    32.
    发明授权
    Ceramic sliding member and method of manufacturing the same 失效
    陶瓷滑动构件及其制造方法

    公开(公告)号:US5217931A

    公开(公告)日:1993-06-08

    申请号:US841302

    申请日:1992-02-28

    IPC分类号: C04B35/593 F16C33/04

    CPC分类号: C04B35/593 F16C33/043

    摘要: A ceramic sliding member is formed of sintered silicon nitride material which contains Si.sub.3 N.sub.4 as the major component and further contains Y, Mg and Ce, the Y content being 2 to 20% by weight in terms of Y.sub.2 O.sub.3, the Mg content being 0.1 to 0.9% by weight in terms of MgO, and the Ce content being 1 to 10% by weight in terms of CeO.sub.2.

    摘要翻译: 陶瓷滑动构件由含有Si 3 N 4作为主要成分并且还含有Y,Mg和Ce,Y含量以Y 2 O 2计为2〜20重量%,Mg含量为0.1〜0.9重量%的烧结氮化硅材料形成, 以Ce计,Ce含量为1〜10重量%。

    Exhaust gas purifying catalyst
    35.
    发明申请
    Exhaust gas purifying catalyst 审中-公开
    废气净化催化剂

    公开(公告)号:US20070161508A1

    公开(公告)日:2007-07-12

    申请号:US11637005

    申请日:2006-12-12

    IPC分类号: B01J23/10

    摘要: Disclosed is an exhaust gas purifying catalyst, which comprises an oxygen absorbing material having a catalytic noble metal arranged at a lattice position or an interlattice position of a crystal structure of a composite oxide containing Ce and Zr, which is capable of sufficiently exhibiting a catalytic function even if a ZrO2 mass ratio is out of the range of 20 to 30 mass % or 65 to 90 mass %. Specifically, in an exhaust gas purifying catalyst formed with a catalyst layer including a cerium-zirconium (CeZr) composite oxide, the composite oxide contains ceria (CeO2) and zirconia (ZrO2) in such a manner that a mass ratio of ceria to a total mass of ceria and zirconia falls within the range of 36 to 64 mass %. Further, the composite oxide contains, in the form of an oxide, a rare-earth metal other than cerium (Ce), in the range of 3 to 20 mass % with respect to a total mass of the composite oxide.

    摘要翻译: 公开了一种废气净化催化剂,其包括具有布置在能够充分显示催化功能的包含Ce和Zr的复合氧化物的晶格结构的晶格位置或晶格位置处的催化贵金属的氧吸收材料 即使ZrO 2质量比在20〜30质量%或65〜90质量%的范围内。 具体地,在形成有包含铈 - 锆(CeZr)复合氧化物的催化剂层的废气净化催化剂中,复合氧化物含有二氧化铈(CeO 2/2)和氧化锆(ZrO 2) SUB>),使得二氧化铈与二氧化铈和氧化锆的总质量的质量比落在36〜64质量%的范围内。 此外,复合氧化物以氧化物的形式含有铈(Ce)以外的稀土类金属,相对于复合氧化物的总质量为3〜20质量%。

    Control device of hydrogen engine
    37.
    发明申请
    Control device of hydrogen engine 有权
    氢气发动机控制装置

    公开(公告)号:US20050188683A1

    公开(公告)日:2005-09-01

    申请号:US11048722

    申请日:2005-02-03

    摘要: There are provided NOx trap catalyst to trap and release NOx based on air-fuel ratio, first fuel supply means for supplying gasoline, second fuel supply means for supplying hydrogen, engine operation detecting means for detecting engine operating condition, fuel ratio changing means for changing the ratio of gasoline and hydrogen, NOx release determining means for determining whether it is required for the NOx to be released based on a state of the trapped NOx, NOx releasing means for releasing the NOx trapped by making the air-fuel ratio rich when the NOx releasing requirement is determined, gasoline ratio increasing means for increasing the ratio of gasoline when NOx releasing requirement is determined and the air-fuel-ratio rich control is executed. Accordingly, improper vibrations or noises can be restrained from occurring when the rich air-fuel-ratio control is executed to release the trapped NOx from the NOx trap catalyst.

    摘要翻译: 提供了用于基于空燃比捕获和释放NOx的NOx捕集催化剂,用于供应汽油的第一燃料供应装置,用于供应氢的第二燃料供应装置,用于检测发动机操作条件的发动机操作检测装置,用于改变 汽油和氢气的比例,NOx释放确定装置,用于基于被捕获的NOx的状态确定是否需要释放NOx; NOx释放装置,用于通过使空燃比富集来释放被捕获的NOx, 确定NOx释放要求,在确定NOx释放要求时提高汽油比例并执行空燃比富控制的汽油比增加装置。 因此,当执行浓空燃比控制以从NOx捕集催化剂释放被捕获的NOx时,可以抑制不适当的振动或噪声。