公开(公告)号：US20130019655A1

公开(公告)日：2013-01-24

申请号：US13554340

申请日：2012-07-20

申请人： Masaki NAKAGAWA ,  Koji SHIOTANI ,  Tomohiro WAKAZONO

发明人： Masaki NAKAGAWA ,  Koji SHIOTANI ,  Tomohiro WAKAZONO

IPC分类号： G01N37/00

CPC分类号： G01N27/419

摘要： In a gas sensor element of a gas sensor, reference oxygen chamber (113) assumes the shape of a rectangular parallelepiped. A reference electrode (111) is disposed on a surface of a third solid electrolyte body (73) which is exposed to the reference oxygen chamber (113). A second outer electrode (117) is disposed opposite the reference electrode, on a surface of a second solid electrolyte body (77) which is exposed to the reference oxygen chamber. Further, a porous, insulative protection layer (165) is formed so as to cover the entire surface of the second outer electrode. A gap (167) is present between the reference electrode and the insulative protection layer. The thickness of the gap is greater than that of the insulative protection layer.

摘要翻译： 在气体传感器的气体传感器元件中，参考氧气室（113）呈长方体形状。 参考电极（111）设置在暴露于基准氧气室（113）的第三固态电解质体（73）的表面上。 第二外部电极（117）与参考电极相对设置在暴露于参考氧气室的第二固体电解质体（77）的表面上。 此外，形成多孔绝缘保护层（165）以覆盖第二外部电极的整个表面。 在参考电极和绝缘保护层之间存在间隙（167）。 间隙的厚度大于绝缘保护层的厚度。

公开(公告)号：US20090280240A1

公开(公告)日：2009-11-12

申请号：US12463625

申请日：2009-05-11

申请人： Seiji OHYA ,  Tomohiro WAKAZONO ,  Kenji KATO ,  Koji SHIOTANI

发明人： Seiji OHYA ,  Tomohiro WAKAZONO ,  Kenji KATO ,  Koji SHIOTANI

IPC分类号： B05D5/12 ,  G01N27/26

CPC分类号： G01N27/4075

摘要： A gas sensor including a gas sensor element having a first measurement chamber (16); a first pumping cell (11); a second measurement chamber (18) into which a gas to be measured having a controlled oxygen partial pressure is introduced; and a second pumping cell (13) having a second inner pump electrode (13b) and a second counterpart electrode (13c) pump electrode configured to detect a specific gas component. The second inner pump electrode is made of a material that contains, as a principal ingredient, two kinds of Pt particles having different particle sizes and whose particle size ratio measured by a sedimentation particle-size distribution ranges from 1.75 to 14.2. A mixing ratio between large Pt particles and small Pt particles has a mass ratio of 10/90 to 50/50. A 10 kHz-1 Hz resistance value across the second pumping cell at 600° C. is 150Ω or less.

摘要翻译： 一种气体传感器，包括具有第一测量室（16）的气体传感器元件; 第一泵送单元（11）; 引入具有受控氧分压的待测气体的第二测量室（18）; 以及具有第二内泵电极（13b）和配置成检测特定气体成分的第二配对电极（13c）泵浦电极的第二泵浦电池（13）。 第二内泵电极由含有不同粒径的两种Pt颗粒作为主要成分的材料制成，其沉降粒度分布测定的粒径比为1.75〜14.2。 大Pt颗粒和小Pt颗粒之​​间的混合比的质量比为10/90至50/50。 在600℃下跨越第二抽滤单元的10kHz-1Hz电阻值为150Omega或更小。

公开(公告)号：US20100264027A1

公开(公告)日：2010-10-21

申请号：US12760958

申请日：2010-04-15

申请人： Masaki NAKAGAWA ,  Tomohiro WAKAZONO ,  Seiji OYA

发明人： Masaki NAKAGAWA ,  Tomohiro WAKAZONO ,  Seiji OYA

IPC分类号： G01N27/30

CPC分类号： G01N27/4071

摘要： A gas sensor including a gas sensor element configured by laminating three or more ceramic layers and having an electrode pad disposed on an outer surface thereof and penetrating holes extending in a laminating direction through two or more of the ceramic layers disposed between an inner conductor and the electrode pad. The gas sensor element has a conductive path formed therein which passes through the penetrating holes formed in different respective ones of the ceramic layers and electrically connects the inner conductor and the electrode pad. Further, the conductive pad is a type 1 conductive path which passes through a plurality of the penetrating holes disposed so as not to overlie one another as viewed from the laminating direction.

摘要翻译： 一种气体传感器，包括气体传感器元件，该气体传感器元件通过层叠三个或更多个陶瓷层并且具有设置在其外表面上的电极焊盘，并且穿过沿层叠方向延伸的两个或更多个陶瓷层设置在内部导体和 电极垫。 气体传感器元件具有形成在其中的导电路径，其通过形成在不同的各个陶瓷层中的贯穿孔，并且电连接内部导体和电极垫。 此外，导电焊盘是从层叠方向观察而穿过多个贯穿孔而不被彼此叠置的1型导电路径。

公开(公告)号：US20100243444A1

公开(公告)日：2010-09-30

申请号：US12732780

申请日：2010-03-26

申请人： Tomohiro WAKAZONO ,  Seiji Oya

发明人： Tomohiro WAKAZONO ,  Seiji Oya

IPC分类号： G01N27/26

CPC分类号： G01N27/419 ,  G01N27/407

摘要： A gas sensor includes a gas sensor element. The gas sensor element includes a first detection chamber; a first oxygen pumping cell including a first solid electrolyte body and a pair of first electrodes; a second detection chamber; a second oxygen pumping cell including a second solid electrolyte body and a pair of second electrodes; and an oxygen-concentration sensing cell including a third solid electrolyte body and a pair of third electrodes. A sensing electrode of the third electrodes is disposed downstream beyond a first inner electrode of the first electrodes relative to a gas flow direction. A cross-sectional area of a space of the first detection chamber which faces the first inner electrode falls within a range from 0.03 mm2 to 0.22 mm2. A center of the sensing electrode is located downstream beyond a downstream end of the first inner electrode to cause a distance between the center of the sensing electrode and the downstream end of the first inner electrode to be greater than or equal to ten times magnitude of a height of the space.

摘要翻译： 气体传感器包括气体传感器元件。 气体传感器元件包括第一检测室; 第一氧气泵浦单元，其包括第一固体电解质体和一对第一电极; 第二检测室; 包括第二固体电解质体和一对第二电极的第二氧气泵浦单元; 以及包含第三固体电解质体和一对第三电极的氧浓度感测单元。 第三电极的感测电极相对于气体流动方向设置在第一电极的第一内部电极的下游。 第一检测室的面向第一内部电极的空间的横截面积在0.03mm 2〜0.22mm 2的范围内。 感测电极的中心位于第一内部电极的下游端的下游，以使感测电极的中心与第一内部电极的下游端之间的距离大于或等于第一内部电极的十倍的大小 高度的空间。