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23 条记录 (耗时 0.021 秒)

    Gas sensor
    1.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号：US07211222B2

    公开(公告)日：2007-05-01

    申请号：US10201302

    申请日：2002-07-24

    申请人： Motoaki Satou ,  Kiyomi Kobayashi ,  Masanobu Yamauchi ,  Namitsugu Fujii

    发明人： Motoaki Satou ,  Kiyomi Kobayashi ,  Masanobu Yamauchi ,  Namitsugu Fujii

    IPC分类号： B32B5/02 ,  B32B27/04 ,  B32B27/12 ,  G01N7/00 ,  G01N21/00

    CPC分类号： G01N27/4077 ,  Y10T436/20 ,  Y10T436/208339 ,  Y10T436/21 ,  Y10T436/218

    摘要： A powder filler is stuffed in a filler space defined between a housing and a gas sensing element so as to airtightly seal a clearance between the housing and the gas sensing element. The powder filler contains grains whose diameter is in a range from 80 μm to 5,000 μm when measured before being stuffed into the filler space. A weight percentage of the grains having the diameter of 80 μm to 5,000 μm is equal to or larger than 80% with respect to an overall weight of the powder filler.

    摘要翻译： 粉末填料填充在壳体和气体感测元件之间的填充空间中，以密封地密封壳体和气体感测元件之间的间隙。 粉末填充剂在填充到填料空间内时，测量直径在80μm至5,000μm之间的颗粒。 相对于粉末填料的总重量，直径为80μm〜5000μm的粒子的重量百分比为80％以上。

    Gas sensing element incorporated in a gas sensor for an internal combustion engine
    3.
    发明授权
    Gas sensing element incorporated in a gas sensor for an internal combustion engine 有权
    气体传感元件结合在用于内燃机的气体传感器中

    公开(公告)号：US06632338B2

    公开(公告)日：2003-10-14

    申请号：US09877125

    申请日：2001-06-11

    申请人： Namitsugu Fujii ,  Motoaki Satou ,  Kiyomi Kobayashi ,  Yasumichi Hotta

    发明人： Namitsugu Fujii ,  Motoaki Satou ,  Kiyomi Kobayashi ,  Yasumichi Hotta

    IPC分类号： G01N2741

    CPC分类号： G01N27/4077

    摘要： A second protective layer is a ceramic porous protective layer comprising coarse particles and fine particles structurally arranged in such a manner that interparticle cavities formed between the coarse particles are filled with the fine particles. At least either of the coarse particles and the fine particles contain at least one selected from the group consisting of &ggr;-Al2O3, &thgr;-Al2O3, &dgr;-Al2O3 and solid solution having the same crystal structure as those of &ggr;-Al2O3, &thgr;-Al2O3, &dgr;-Al2O3.

    摘要翻译： 第二保护层是包括粗颗粒和细颗粒的陶瓷多孔保护层，其结构地布置成使得在粗颗粒之间形成的颗粒间隙被细颗粒填充。 粗颗粒和细颗粒中的至少任一种含有选自γ-Al 2 O 3，θ-Al 2 O 3，δ-Al 2 O 3和与γ-Al 2 O 3，θ-Al 2 O 3具有相同晶体结构的固溶体中的至少一种 ，Δ-Al2O3

    Gas sensor element with lead-proof effect
    4.
    发明授权
    Gas sensor element with lead-proof effect 失效
    气体传感器元件具有防铅效果

    公开(公告)号：US06409899B1

    公开(公告)日：2002-06-25

    申请号：US09511079

    申请日：2000-02-23

    申请人： Motoaki Satou ,  Yasumichi Hotta ,  Namitsugu Fujii ,  Hiromi Sano

    发明人： Motoaki Satou ,  Yasumichi Hotta ,  Namitsugu Fujii ,  Hiromi Sano

    IPC分类号： G01N27407

    CPC分类号： G01N27/4077

    摘要： A sensor element has a solid electrolyte body holding a reference gas side electrode and a measurement gas side electrode on surfaces thereof. The measurement gas side electrode is covered with a porous protective layer including a component as a lead getter, which reacts with lead contained in measurement gas. Accordingly, lead is removed from measurement gas by the protective layer not to be attached to the measurement gas side electrode. As a result, the sensor element can be used in measurement gas containing lead, without deteriorating responsibility and output thereof.

    摘要翻译： 传感器元件具有在其表面上保持参考气体侧电极和测量气体侧电极的固体电解质体。 测量气体侧电极被多孔保护层覆盖，该多孔保护层包括与测量气体中所含的铅反应的作为引线吸气剂的部件。 因此，通过不附接到测量气体侧电极的保护层将铅从测量气体中除去。 结果，传感器元件可以用于含铅的测量气体中，而不会降低其责任和输出。

    Oxygen concentration detecting device and method for fabricating the same
    5.
    发明授权
    Oxygen concentration detecting device and method for fabricating the same 失效
    氧浓度检测装置及其制造方法

    公开(公告)号：US5766434A

    公开(公告)日：1998-06-16

    申请号：US797652

    申请日：1997-01-31

    申请人： Namitsugu Fujii ,  Hiromi Sano ,  Yasumichi Hotta ,  Naoto Miwa ,  Motoaki Satou

    发明人： Namitsugu Fujii ,  Hiromi Sano ,  Yasumichi Hotta ,  Naoto Miwa ,  Motoaki Satou

    IPC分类号： G01N27/407 ,  G01N27/26

    CPC分类号： G01N27/4075 ,  G01N27/4077

    摘要： An oxygen concentration detecting device comprises a solid electrolyte body, inner and outer electrodes formed on the opposite sides of the solid electrolyte body, and a protective layer formed on the outer electrode and comprised of coarse particles and fine particles mutually bonded through an inorganic binder while substantially keeping the original forms of the both types of particles. A ratio of an average particle size, RB, of the coarse particles to an average particle size, RA, of the fine particles of 30:1 or above, and a content, WA, of the fine particles in the protective layer based on the total content, W, of the content, WA, of the fine particles and the content, WB, of the coarse particles on the weight basis is in the range of 15 to 80 %. A method for fabricating the detecting device having such a protective layer as set out above is also described.

    摘要翻译： 氧浓度检测装置包括固体电解质体，形成在固体电解质体的相对侧的内部和外部电极，以及形成在外部电极上的保护层，其由通过无机粘合剂相互粘合的粗粒子和微粒组成， 基本保持两种类型颗粒的原始形式。 基于上述保护层中的微粒的粗粒子的平均粒径RB与微粒的平均粒径RA（30:1以上）和含量WA的比例 粗颗粒的含量W W，微粒的含量W和重量的含量WB在15〜80％的范围内。 还描述了制造具有上述保护层的检测装置的方法。

    Structure of oxygen sensing element
    6.
    发明授权
    Structure of oxygen sensing element 有权
    氧传感元件的结构

    公开(公告)号：US06344118B1

    公开(公告)日：2002-02-05

    申请号：US09130902

    申请日：1998-08-07

    申请人： Kiyomi Kobayashi ,  Namitsugu Fujii ,  Yasumichi Hotta ,  Hiromi Sano

    发明人： Kiyomi Kobayashi ,  Namitsugu Fujii ,  Yasumichi Hotta ,  Hiromi Sano

    IPC分类号： G01N2726

    CPC分类号： G01N27/4075

    摘要： An improved structure of an oxygen sensing element installed in an oxygen sensor designed to measure an oxygen content in gases is provided. The structure includes a cup-shaped solid electrolyte body, an inner electrode, and an outer electrode. The solid electrolyte body has a portion exposed to the gases which has a given length. The inner electrode is formed on an inner wall of the solid electrolyte body and exposed to air. The outer electrode is formed on an outer wall of the solid electrolyte body and exposed to the gases through a protective layer. The oxygen content in the gases is measured based on output signals from the inner and outer electrodes. The outer electrode occupies an area on the outer wall of the solid electrolyte body within a range of 80% of the given length of the gas-exposed portion of the solid electrolyte body and has a thickness ranging from 1.2 to 3.0 &mgr;m. This allows the oxygen sensing element to determine the oxygen content in the gases precisely and to have an improved heat-resistance.

    摘要翻译： 提供了安装在氧传感器中的氧传感元件的改进结构，其设计用于测量气体中的氧含量。 该结构包括杯状固体电解质体，内部电极和外部电极。 固体电解质体具有暴露于具有给定长度的气体的部分。 内部电极形成在固体电解质体的内壁上并暴露于空气中。 外电极形成在固体电解质体的外壁上并通过保护层暴露于气体。 基于来自内外电极的输出信号测量气体中的氧含量。 外部电极在固体电解质体的气体暴露部分的给定长度的80％的范围内占据固体电解质体外壁上的区域，并且具有1.2-3.0μm的厚度。 这允许氧气感测元件精确地确定气体中的氧含量并且具有改善的耐热性。

    Oxygen sensing element used in a oxygen sensor
    8.
    发明授权
    Oxygen sensing element used in a oxygen sensor 有权
    氧传感器中使用的氧气感应元件

    公开(公告)号：US06354134B1

    公开(公告)日：2002-03-12

    申请号：US09196129

    申请日：1998-11-20

    申请人： Tooru Katafuchi ,  Kiyomi Kobayashi ,  Namitsugu Fujii ,  Hiromi Sano

    发明人： Tooru Katafuchi ,  Kiyomi Kobayashi ,  Namitsugu Fujii ,  Hiromi Sano

    IPC分类号： G01N2746

    CPC分类号： G01N27/4075 ,  G01N27/407

    摘要： A solid electrolytic body has an inside space serving as a reference gas chamber. A sensing electrode and a reference electrode are formed on the surface of the solid electrolytic body. A heater is disposed in the reference gas chamber. A contact portion comprises a region where the heater is brought into contact with the inner surface of the solid electrolytic body and an opposing region on the outer surface of the solid electrolytic body. The sensing electrode includes at least part of the contact portion. A gas receiving surface region, exposed to the measuring gas, extends from an element tip to a position spaced by a distance L away from the element tip. At least part of the contact portion is located in a region extending from the element tip to a position spaced by a distance 0.4L away from the element tip. The sensing electrode is entirely located in a region extending from the element tip to a position spaced by a distance 0.8L away from the element tip.

    摘要翻译： 固体电解质体具有作为基准气体室的内部空间。 感测电极和参考电极形成在固体电解体的表面上。 加热器设置在参考气室中。 接触部包括加热器与固体电解质体的内表面接触的区域和固体电解体的外表面上的相对区域。 感测电极包括接触部分的至少一部分。 暴露于测量气体的气体接收表面区域从元件尖端延伸到远离元件尖端间隔距离L的位置。 接触部分的至少一部分位于从元件尖端延伸到远离元件尖端间隔0.4L的位置的区域中。 感测电极完全位于从元件尖端延伸到与元件尖端间隔0.8L的位置的区域中。

    Method for manufacturing a gas sensor unit
    9.
    发明授权
    Method for manufacturing a gas sensor unit 有权
    气体传感器单元的制造方法

    公开(公告)号：US06174489B1

    公开(公告)日：2001-01-16

    申请号：US09140422

    申请日：1998-08-26

    申请人： Kiyomi Kobayashi ,  Naoto Miwa ,  Toshitaka Saito ,  Hiromi Sano ,  Namitsugu Fujii

    发明人： Kiyomi Kobayashi ,  Naoto Miwa ,  Toshitaka Saito ,  Hiromi Sano ,  Namitsugu Fujii

    IPC分类号： C07B3332

    CPC分类号： G01N27/4073

    摘要： A method for manufacturing an oxygen sensor unit of the type which includes at least a shaped body of a solid electrolyte, an inner electrode provided on an inside surface of the shaped body and exposed to a reference gas, an outer electrode provided on an outside surface of the shaped body and exposed to a gas to be measured, and a porous protective layer covering the outer electrode and a portion of the shaped body adjoining to said outer electrode wherein the solid electrolyte is made of a mixture of zirconia and a stabilizer therefor and is constituted of a sintered product of partially stabilized zirconia. The method is characterized in that the partially stabilized, sintered zirconia is obtained according to a high temperature sintering process which includes at least the step of sintering the mixture at a temperature of 1200° C. or over for a duration of 2 to 6 hours wherein a value obtained by integrating a variation in the sintering temperature with the duration in the sintering process is in the range of 300 to 1500° C.·hour.

    摘要翻译： 一种制造氧传感器单元的方法，该氧传感器单元至少包括固体电解质的成形体，设置在成形体的内表面上并暴露于参考气体的内电极，设置在外表面上的外电极 并暴露于要测量的气体，以及覆盖外电极的多孔保护层和与所述外电极相邻的成形体的一部分，其中固体电解质由氧化锆及其稳定剂的混合物制成， 由部分稳定化的氧化锆的烧结体构成。 该方法的特征在于，部分稳定的烧结氧化锆根据高温烧结方法获得，其至少包括在1200℃或更高温度下烧结混合物2至6小时的步骤，其中 通过将烧结温度的变化与烧结过程中的持续时间相结合而获得的值在300〜1500℃的范围内。