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    Multilayered gas sensing element employable in an exhaust system of an internal combustion engine
    1.
    发明授权
    Multilayered gas sensing element employable in an exhaust system of an internal combustion engine 失效
    可用于内燃机排气系统的多层气体传感元件

    公开(公告)号：US06589409B2

    公开(公告)日：2003-07-08

    申请号：US09821807

    申请日：2001-03-30

    申请人： Akira Miyashita ,  Akio Tanaka ,  Toshitaka Saito ,  Keigo Mizutani

    发明人： Akira Miyashita ,  Akio Tanaka ,  Toshitaka Saito ,  Keigo Mizutani

    IPC分类号： G01N27407

    CPC分类号： G01N27/419

    摘要： An objective gas to be measured is introduced into first and second chambers which are connected via a diffusion resistive passage. A first electrochemical cell is provided in the first chamber for pumping in and out oxygen in accordance with an applied voltage. A second electrochemical cell is provided in the second chamber and responsive to application of a predetermined voltage for generating a sensor current representing a specific gas concentration in the objective gas. The first electrochemical cell is located between the first chamber and a reference gas chamber so that oxygen pumping in and out operation can be performed between the first chamber and the reference gas chamber.

    摘要翻译： 待测量的目标气体被引入通过扩散阻力通道连接的第一和第二室中。 在第一室中提供第一电化学电池，用于根据施加的电压泵入和输出氧气。 在第二室中提供第二电化学电池，并响应于施加预定电压以产生表示目标气体中的特定气体浓度的传感器电流。 第一电化学电池位于第一室和参考气室之间，使得可以在第一室和参考气室之间执行氧气输入和输出操作。

    Compound layered type of sensing device for multiple measurement
    2.
    发明授权
    Compound layered type of sensing device for multiple measurement 失效
    用于多重测量的复合分层式感测装置

    公开(公告)号：US06805782B2

    公开(公告)日：2004-10-19

    申请号：US09820819

    申请日：2001-03-30

    申请人： Akio Tanaka ,  Toshitaka Saito ,  Akira Miyashita ,  Keigo Mizutani

    发明人： Akio Tanaka ,  Toshitaka Saito ,  Akira Miyashita ,  Keigo Mizutani

    IPC分类号： G01N27407

    CPC分类号： G01N27/419

    摘要： In order to raise accuracy of measurement, a compound layered type of sensing device is provided. The device comprises a plurality of solid electrolyte plates and first to third electrochemical cells. Each cell has a single pair of electrodes disposed on the solid electrolyte plates. A concentration of a gas specified from a gas to be measured pre-processed based on oxygen pumping by the first electrochemical cell is detected by the second electrochemical cell. A difference in electromotive force between the gas to be measured and a reference gas is detected by the third electrochemical cell. The single pair of electrodes of the third electrochemical cell is disposed on the same surface of one of the solid electrolyte plates, and both of the first and third electrochemical cells are located with different ones of the solid electrolyte plates.

    摘要翻译： 为了提高测量精度，提供了一种复合分层型感测装置。 该装置包括多个固体电解质板和第一至第三电化学电池。 每个电池具有设置在固体电解质板上的单对电极。 通过第二电化学电池检测由基于第一电化学电池的氧气泵送预先处理的待测气体指定的气体浓度。 通过第三电化学电池检测被测气体与参考气体之间的电动势差。 第三电化学电池的单对电极设置在固体电解质板之一的相同表面上，并且第一和第三电化学电池都位于不同的固体电解质板中。

    Gas sensor element
    3.
    发明授权
    Gas sensor element 有权
    气体传感器元件

    公开(公告)号：US07867370B2

    公开(公告)日：2011-01-11

    申请号：US11633434

    申请日：2006-12-05

    申请人： Nobuyuki Tsuji ,  Akio Tanaka ,  Keigo Mizutani

    发明人： Nobuyuki Tsuji ,  Akio Tanaka ,  Keigo Mizutani

    IPC分类号： G01N7/00

    CPC分类号： G01N27/4075

    摘要： A gas sensor element has a solid electrolyte body of oxygen ionic conductivity, a target gas electrode and a reference gas electrode formed on both surfaces of the solid electrolyte body, respectively, a porous diffusion resistance layer, and a catalyst support trap layer. The porous diffusion resistance layer covers the target gas electrode and through which target gases to be measured are passing. The catalyst support trap layer is formed on the outer surface of the porous diffusion resistance layer and supports noble metal catalyst. In the gas sensor element, the noble metal catalyst is made of platinum, rhodium, palladium supported in the catalyst support trap layer. In particular, an addition amount of palladium in the total amount of the noble metal catalyst is within a range of 2 to 65 wt %.

    摘要翻译： 气体传感器元件分别具有氧离子传导性的固体电解质体，分别形成在固体电解质体的两个表面上的目标气体电极和参考气体电极，多孔扩散电阻层和催化剂载体捕获层。 多孔扩散电阻层覆盖目标气体电极，待测量的目标气体通过该气体电极。 催化剂载体捕获层形成在多孔扩散电阻层的外表面上，并支持贵金属催化剂。 在气体传感器元件中，贵金属催化剂由负载在催化剂载体捕获层中的铂，铑，钯制成。 特别地，贵金属催化剂总量中钯的添加量在2〜65重量％的范围内。

    Gas sensing element and a method for measuring a specific gas concentration
    4.
    发明授权
    Gas sensing element and a method for measuring a specific gas concentration 有权
    气体传感元件和测定特定气体浓度的方法

    公开(公告)号：US06205843B1

    公开(公告)日：2001-03-27

    申请号：US09440859

    申请日：1999-11-16

    申请人： Akio Tanaka ,  Tomio Sugiyama ,  Shinichiro Imamura ,  Satoshi Hada ,  Keigo Mizutani

    发明人： Akio Tanaka ,  Tomio Sugiyama ,  Shinichiro Imamura ,  Satoshi Hada ,  Keigo Mizutani

    IPC分类号： G01N27407

    CPC分类号： G01N27/419

    摘要： A gas sensing element having a sample gas chamber into which a sample gas is introduced, and a reference gas chamber into which a reference gas is introduced. A sensor cell detects a specific gas concentration in the sample gas chamber. An oxygen pump cell pump cell pumps oxygen gas from or to the sample gas chamber. An introducing passage includes at least one pinhole provided on a surface of the oxygen pump cell for introducing the measuring gas into the sample gas chamber. The surface of the oxygen pump cell faces an outside of the gas sensing element. And, a porous diffusion resistive layer is provided on the surface of the oxygen pump cell so as to cover a portion corresponding to the introducing passage, thus serving to reduce or eliminate the effects of temperature dependency upon gas sensor output for properly sized and machine pinholes.

    摘要翻译： 具有被引入样本气体的样本气体室的气体传感元件和引入参考气体的参考气体室。 传感器单元检测样品气体室中的特定气体浓度。 氧气泵电池泵电池将氧气从或来自样品气室泵送。 引入通道包括设置在氧泵单元的表面上的至少一个针孔，用于将测量气体引入样气室。 氧气泵单元的表面面向气体感测元件的外部。 并且，在氧泵电池的表面上设置多孔扩散电阻层，以覆盖对应于引入通道的部分，从而用于减小或消除对气体传感器输出的温度依赖性对适当尺寸和机针孔的影响 。

    Gas sensor element
    5.
    发明申请
    Gas sensor element 有权
    气体传感器元件

    公开(公告)号：US20070144905A1

    公开(公告)日：2007-06-28

    申请号：US11633434

    申请日：2006-12-05

    申请人： Nobuyuki Tsuji ,  Akio Tanaka ,  Keigo Mizutani

    发明人： Nobuyuki Tsuji ,  Akio Tanaka ,  Keigo Mizutani

    IPC分类号： G01N27/26

    CPC分类号： G01N27/4075

    摘要： A gas sensor element has a solid electrolyte body of oxygen ionic conductivity, a target gas electrode and a reference gas electrode formed on both surfaces of the solid electrolyte body, respectively, a porous diffusion resistance layer, and a catalyst support trap layer. The porous diffusion resistance layer covers the target gas electrode and through which target gases to be measured are passing. The catalyst support trap layer is formed on the outer surface of the porous diffusion resistance layer and supports noble metal catalyst. In the gas sensor element, the noble metal catalyst is made of platinum, rhodium, palladium supported in the catalyst support trap layer. In particular, an addition amount of palladium in the total amount of the noble metal catalyst is within a range of 2 to 65 wt %.

    摘要翻译： 气体传感器元件分别具有氧离子传导性的固体电解质体，分别形成在固体电解质体的两个表面上的目标气体电极和参考气体电极，多孔扩散电阻层和催化剂载体捕获层。 多孔扩散电阻层覆盖目标气体电极，待测量的目标气体通过该气体电极。 催化剂载体捕获层形成在多孔扩散电阻层的外表面上，并支持贵金属催化剂。 在气体传感器元件中，贵金属催化剂由负载在催化剂载体捕获层中的铂，铑，钯制成。 特别地，贵金属催化剂总量中钯的添加量在2〜65重量％的范围内。

    Air-fuel ratio sensor
    7.
    发明授权
    Air-fuel ratio sensor 失效
    空燃比传感器

    公开(公告)号：US5935399A

    公开(公告)日：1999-08-10

    申请号：US792737

    申请日：1997-01-31

    申请人： Akio Tanaka ,  Naoto Miwa ,  Hiromi Sano ,  Toshitaka Saito ,  Katsuhiro Ishikawa

    发明人： Akio Tanaka ,  Naoto Miwa ,  Hiromi Sano ,  Toshitaka Saito ,  Katsuhiro Ishikawa

    IPC分类号： G01N27/407

    CPC分类号： G01N27/4075

    摘要： An air-fuel ratio sensing element comprises a cup-shaped solid electrolyte with one end opened and the other end closed, an external electrode provided on an outer wall surface of the solid electrolyte so as to be exposed to measured gas, and an internal electrode provided on an inner wall surface of the solid electrolyte in a confronting relationship to the external electrode. A first insulating layer, made of a gas-permeable and nonconductive porous material, is provided on the external electrode at least in a region used for detecting of an air-fuel ratio. A second insulating layer is provided outside the first insulating layer and, a heater layer as provided between the first insulating layer and the second insulating layer.

    摘要翻译： 空燃比检测元件包括一端敞开而另一端闭合的杯形固体电解质，设置在固体电解质的外壁表面上以暴露于测量气体的外部电极，以及内部电极 以与外部电极相对的关系设置在固体电解质的内壁表面上。 至少在用于检测空燃比的区域中，在外部电极上设置由透气且不导电的多孔材料制成的第一绝缘层。 第二绝缘层设置在第一绝缘层的外侧，以及设置在第一绝缘层和第二绝缘层之间的加热器层。

    NOx sensing cell, manufacturing method for the NOx sensing cell, and NOx sensing device including the NOx sensing cell
    8.
    发明申请
    NOx sensing cell, manufacturing method for the NOx sensing cell, and NOx sensing device including the NOx sensing cell 审中-公开
    NOx感测单元，NOx感测单元的制造方法以及包括NOx感测单元的NOx感测装置

    公开(公告)号：US20050061670A1

    公开(公告)日：2005-03-24

    申请号：US10944426

    申请日：2004-09-20

    申请人： Akio Tanaka ,  Toshitaka Saito ,  Tadashi Nakamura ,  Tadashi Inaba ,  Keiichi Saji ,  Jiro Sakata

    发明人： Akio Tanaka ,  Toshitaka Saito ,  Tadashi Nakamura ,  Tadashi Inaba ,  Keiichi Saji ,  Jiro Sakata

    IPC分类号： G01N27/41 ,  G01N27/416 ,  G01N27/419 ,  G01N27/26

    CPC分类号： G01N27/419 ,  Y10T29/49002

    摘要： A NOx sensing cell includes a solid electrolyte having oxide ion conductivity and a pair of electrodes electrically connected to the solid electrolyte. The measuring electrode includes an oxide portion and a noble metallic portion. The oxide portion includes the solid solution of zirconia containing at least ceria. The noble metallic portion contains at least two kinds of metallic elements selected from platinum group elements. In addition to the NOx sensing cell, a NOx sensing device includes a measuring chamber into which a sensing objective gas is introduced, and an oxygen pump cell which is capable of electrochemically removing the oxygen from the measuring chamber. The measuring electrode of the NOx sensing cell is positioned in the measuring chamber.

    摘要翻译： NOx感测单元包括具有氧化物离子传导性的固体电解质和与固体电解质电连接的一对电极。 测量电极包括氧化物部分和贵金属部分。 氧化物部分包括至少含有二氧化铈的氧化锆固溶体。 贵金属部分含有选自铂族元素中的至少两种金属元素。 除了NOx感测单元之外，NOx感测装置还包括测量室，导入检测对象气体的测量室以及能够从测量室电化学除去氧气的氧气泵室。 NOx感测单元的测量电极位于测量室中。

    NOx gas detecting apparatus
    9.
    发明授权
    NOx gas detecting apparatus 有权
    NOx气体检测装置

    公开(公告)号：US06607643B2

    公开(公告)日：2003-08-19

    申请号：US09794069

    申请日：2001-02-28

    申请人： Hideaki Takahashi ,  Keiichi Saji ,  Jiro Sakata ,  Tadashi Inaba ,  Tadashi Nakamura ,  Yumi Masuoka ,  Toshitaka Saito ,  Akio Tanaka

    发明人： Hideaki Takahashi ,  Keiichi Saji ,  Jiro Sakata ,  Tadashi Inaba ,  Tadashi Nakamura ,  Yumi Masuoka ,  Toshitaka Saito ,  Akio Tanaka

    IPC分类号： G01N27407

    CPC分类号： G01N27/419 ,  G01N33/0037 ,  Y02A50/245

    摘要： A NOx gas detecting apparatus including an oxygen pumping cell for removing oxygen from a measurement gas, and a NOx detecting cell positioned downstream from the oxygen pumping cell to detect concentration of NOx in the measurement gas, the NOx detecting cell being configured to measure current which flows when oxygen generated from reducing NOx is pumped, wherein the NOx detecting cell has a NOx detecting cathode made of an electrode material including at least one alloy selected from the group consisting of a Pt-Pd alloy, a Pt-Au-Pd alloy, and a Pt-Pd-Rh alloy.

    摘要翻译： 一种NOx气体检测装置，其包括用于从测量气体中除氧的氧气泵浦单元，以及位于所述氧气泵浦单元下游的NOx检测单元，以检测所述测量气体中的NOx浓度，所述NOx检测单元被配置为测量 在从还原NOx产生的氧气被泵送时流动，其中，所述NOx检测单元具有由电极材料制成的NOx检测阴极，所述电极材料包括选自由Pt-Pd合金，Pt-Au-Pd合金， 和Pt-Pd-Rh合金。