Oxygen concentration detector
    1.
    发明公开
    Oxygen concentration detector 失效
    Sauerstoffkonzentrationsdetektor

    公开(公告)号:EP1321765A2

    公开(公告)日:2003-06-25

    申请号:EP03002480.6

    申请日:1995-06-08

    申请人: DENSO CORPORATION

    IPC分类号: G01N27/407

    CPC分类号: G01N27/4075

    摘要: An oxygen concentration detector 90 includes a one-end closed cylindrical oxygen sensing element 91 having an inside electrode 32, outside electrode 31 provided on the inner side and outer side respectively, an electrode protecting layer 2 made up of ceramics porous member provided further outside the outside electrode, and a trap layer 1 of ceramics porous member having a surface roughness of 20 to 100 µm measured according to a 10 point mean roughness measurement and provided outside the electrode protecting layer 2 is employed. By dipping the to-be-detected gas side surface of an oxygen sensing element into a slurry with coarse heat-resisting metal oxide particles, 2 to 50 µm in average grain size, dispersed, depositing the slurry on the surface of a protective layer of an oxygen sensor element, thereafter drying and baking the deposit, a porous poisonous substance trap layer, 10 to 500 µm thick, is formed. The dipping is performed after a previous degassing and strong stirring of said slurry and the stop of stirring.

    摘要翻译: 氧浓度检测器90包括具有内部电极32,设置在内侧和外侧的外部电极31的一端封闭圆柱形氧气检测元件91,由设置在外侧的陶瓷多孔构件构成的电极保护层2 采用根据10点平均粗糙度测量测量并设置在电极保护层2外侧的表面粗糙度为20至100μm的陶瓷多孔构件的捕获层1。 通过将氧检测元件的待检测气体侧表面浸入具有粗糙的耐热金属氧化物颗粒的浆料中,平均粒径为2至50μm,分散,将浆料沉积在保护层的表面上 的氧传感器元件,然后干燥和烘烤沉积物,形成10至500μm厚的多孔有害物质捕获层。 在先前脱气并强烈搅拌所述浆料并停止搅拌之后进行浸渍。

    Multilayered air-fuel ratio sensing element
    4.
    发明公开
    Multilayered air-fuel ratio sensing element 有权
    用于确定Kraftsoff /氧比多层传感器

    公开(公告)号:EP0942279A3

    公开(公告)日:2004-09-29

    申请号:EP99100890.5

    申请日:1999-01-19

    申请人: Denso Corporation

    CPC分类号: G01N27/4073

    摘要: A multilayered air-fuel ratio sensing element has a zirconic solid electrolytic body (11) and a heat-generating portion (13, 16, 22) including an alumina substrate located adjacent to the zirconic solid electrolytic body (11). The zirconic solid electrolytic body (11) is made of a partially stabilized zirconia containing 5∼7 mol% yttria and having a mixed phase structure including a cubic phase, a monoclinic phase and a tetragonal phase. The zirconic solid electrolytic body (11) has a relative density of 94∼100% with a mean sintered grain size (R ZR ) of 0.5∼3.0 µm. The alumina substrate has a relative density of 95∼100% with a mean sintered grain size (R AL ) of 0.5∼4.0 µm. And, the partially stabilized zirconia has an M/C ratio in a range from 0.05 to 0.25.

    Oxygen concentration detector
    5.
    发明公开
    Oxygen concentration detector 失效
    氧浓度检测器

    公开(公告)号:EP1321765A3

    公开(公告)日:2003-09-17

    申请号:EP03002480.6

    申请日:1995-06-08

    申请人: DENSO CORPORATION

    IPC分类号: G01N27/409 G01N27/407

    CPC分类号: G01N27/4075

    摘要: An oxygen concentration detector 90 includes a one-end closed cylindrical oxygen sensing element 91 having an inside electrode 32, outside electrode 31 provided on the inner side and outer side respectively, an electrode protecting layer 2 made up of ceramics porous member provided further outside the outside electrode, and a trap layer 1 of ceramics porous member having a surface roughness of 20 to 100 µm measured according to a 10 point mean roughness measurement and provided outside the electrode protecting layer 2 is employed. By dipping the to-be-detected gas side surface of an oxygen sensing element into a slurry with coarse heat-resisting metal oxide particles, 2 to 50 µm in average grain size, dispersed, depositing the slurry on the surface of a protective layer of an oxygen sensor element, thereafter drying and baking the deposit, a porous poisonous substance trap layer, 10 to 500 µm thick, is formed. The dipping is performed after a previous degassing and strong stirring of said slurry and the stop of stirring.

    摘要翻译: 氧浓度检测器90包括:一端封闭的圆筒形氧气检测元件91,其具有内侧电极32,分别设置在内侧和外侧的外侧电极31,由陶瓷多孔构件构成的电极保护层2, 采用根据10点平均粗糙度测量测得的表面粗糙度为20至100μm并且设置在电极保护层2外部的陶瓷多孔构件的捕集层1。 通过将氧感应元件的待检测气体侧表面浸入具有平均粒度为2-50μm的粗耐热金属氧化物颗粒的浆料中,使其分散,沉积在保护层表面上 氧传感器元件,然后干燥并烘烤该沉积物,形成10至500μm厚的多孔有害物质捕集层。 在先前脱气和强力搅拌所述浆液并停止搅拌之后进行浸渍。

    Multilayered air-fuel ratio sensing element
    6.
    发明公开
    Multilayered air-fuel ratio sensing element 有权
    Mehrschichtsensor zur Bestimmung des Kraftsoff /Sauerstoffverhältnisses

    公开(公告)号:EP0942279A2

    公开(公告)日:1999-09-15

    申请号:EP99100890.5

    申请日:1999-01-19

    申请人: Denso Corporation

    IPC分类号: G01N27/407

    CPC分类号: G01N27/4073

    摘要: A multilayered air-fuel ratio sensing element has a zirconic solid electrolytic body (11) and a heat-generating portion (13, 16, 22) including an alumina substrate located adjacent to the zirconic solid electrolytic body (11). The zirconic solid electrolytic body (11) is made of a partially stabilized zirconia containing 5∼7 mol% yttria and having a mixed phase structure including a cubic phase, a monoclinic phase and a tetragonal phase. The zirconic solid electrolytic body (11) has a relative density of 94∼100% with a mean sintered grain size (R ZR ) of 0.5∼3.0 µm. The alumina substrate has a relative density of 95∼100% with a mean sintered grain size (R AL ) of 0.5∼4.0 µm. And, the partially stabilized zirconia has an M/C ratio in a range from 0.05 to 0.25.

    摘要翻译: 多层空燃比传感元件具有锆固体电解体(11)和包含与锆固体电解质体(11)相邻的氧化铝基板的发热部(13,16,22)。 锆固体电解质体(11)由部分稳定化的氧化锆制成,含有5%7mol%的氧化钇并具有包括立方相,单斜晶相和四方晶相的混合相结构。 锆固体电解质体(11)的平均烧结粒径(RZR)为0.5〜3.0μm,相对密度为94〜100%。 氧化铝基板的相对密度为95〜100%,平均烧结晶粒尺寸(RAL)为0.5〜4.0μm。 而且,部分稳定的氧化锆的M / C比在0.05至0.25的范围内。