公开(公告)号：US5393397A

公开(公告)日：1995-02-28

申请号：US172222

申请日：1993-12-23

申请人： Tomoji Fukaya ,  Masahiro Shibata ,  Kazunori Suzuki ,  Makoto Nakae ,  Syuichi Nakano ,  Masatoshi Suzuki

发明人： Tomoji Fukaya ,  Masahiro Shibata ,  Kazunori Suzuki ,  Makoto Nakae ,  Syuichi Nakano ,  Masatoshi Suzuki

IPC分类号： G01N27/41 ,  G01N27/407 ,  G01N27/409 ,  G01N27/419 ,  G01N27/26

CPC分类号： G01N27/4075

摘要： An oxygen sensor capable of accelerating electrochemical reactions and practically working at a low temperature comprises a solid electrolyte 5, and an outer electrode 31 and an inner electrode 32, provided on the surfaces of the solid electrolyte 5, wherein mixed conductors 11 and 12 capable of adsorbing oxygen molecules and conducting an ionization reaction are provided between the solid electrolyte 5 and the outer electrode 31 and between the solid electrolyte 5 and the inner electrode 32, respectively. The mixed conductors 11 and 12 are porous and have a higher oxygen ion conductivity than that of the solid electrolyte 5 and an electron conductivity substantially equivalent to the oxygen ion conductivity and are made of a fluorite-type oxide or a perovskite-type oxide.

摘要翻译： 能够加速电化学反应并在低温下实际工作的氧传感器包括固体电解质5和设置在固体电解质5的表面上的外电极31和内电极32，其中混合导体11和12能够 分别在固体电解质5和外部电极31之间以及固体电解质5和内部电极32之间分别吸附氧分子并进行电离反应。 混合导体11和12是多孔的，并且具有比固体电解质5更高的氧离子电导率和基本上等于氧离子传导性的电子传导性，并且由萤石型氧化物或钙钛矿型氧化物制成。

公开(公告)号：US5419828A

公开(公告)日：1995-05-30

申请号：US299058

申请日：1994-08-31

申请人： Syuichi Nakano ,  Tomio Sugiyama ,  Tomoji Fukaya ,  Masatoshi Suzuki

发明人： Syuichi Nakano ,  Tomio Sugiyama ,  Tomoji Fukaya ,  Masatoshi Suzuki

IPC分类号： G01N27/41 ,  G01N27/407 ,  G01N27/26

CPC分类号： G01N27/4071 ,  G01N27/4073

摘要： An air fuel ratio detecting apparatus by which a stable oxygen ion limit current may be obtained, including a working electrode and a gas diffusion resistance layer laminated in this order on a first surface of a solid electrolyte. An ambient air introduction duct and an electric heater are laminated in this order on a second surface of the electrolyte. The gas diffusion resistance layer is composed of a gas permeation layer and gas shield layer, which is provided on a surface of the gas diffusion resistance layer. Since the surface of the gas permeation layer is covered by the gas shield layer, the gas to be measured enters into the gas diffusion resistance layer from only side faces of gas diffusion resistance layer. A cell is preferably baked in a one-piece manner. A porosity of the gas permeation layer is in a preferable range of from about 2 to about 60%, a thickness of the gas permeation layer is preferably in a range of from about 5 to about 300 .mu.m, and a porosity of the gas shield layer is preferably no more than 10%. Also, the periphery of the cell is preferably covered by a protective layer.

摘要翻译： 可以获得稳定的氧离子极限电流的空燃比检测装置，其包括在固体电解质的第一表面上依次层叠的工作电极和气体扩散阻力层。 环境空气导入管道和电加热器依次层叠在电解质的第二表面上。 气体扩散阻力层由设置在气体扩散电阻层的表面上的气体渗透层和气体屏蔽层构成。 由于气体渗透层的表面被气体屏蔽层覆盖，所以待测气体仅从气体扩散阻力层的侧面进入气体扩散阻力层。 细胞优选以一体式方式烘烤。 气体渗透层的孔隙率优选为约2％至约60％，气体渗透层的厚度优选在约5至约300μm的范围内，气体屏蔽层的孔隙率 层优选不超过10％。 此外，电池的周边优选被保护层覆盖。

公开(公告)号：US5556526A

公开(公告)日：1996-09-17

申请号：US409527

申请日：1995-03-24

申请人： Kenji Fukaya ,  Makoto Hori ,  Masahiro Hamaya ,  Minoru Ota ,  Syuichi Nakano ,  Tomoji Fukaya

发明人： Kenji Fukaya ,  Makoto Hori ,  Masahiro Hamaya ,  Minoru Ota ,  Syuichi Nakano ,  Tomoji Fukaya

IPC分类号： G01N27/407 ,  G01N27/26

CPC分类号： G01N27/4062 ,  G01N27/407

摘要： A small-sized highly accurate gas sensor, which is excellent in its reliability of electric connections between contacts and fixtures while being freed from any damage, includes a base member; a detecting unit mounted on the base member for detecting a gas concentration; electrodes mounted on the detecting unit; cylindrical contacts buried integrally in an end portion of the base member; and electric leads interposed between the cylindrical contacts and the electrodes. Contacting fixtures for external lead wires are fitted in and contact the cylindrical contacts so that they are connected to the cylindrical contacts. The cylindrical contacts are formed in their openings with engaging entrances having a smaller diameter than the internal diameter, and the contacting fixtures include elastic contacting portions adapted to be diametrically reduced, when inserted into the cylindrical contacts, than the engaging entrances and expanded, after inserted, to become larger than the engaging entrances and to contact the inner walls of the cylindrical contacts.

摘要翻译： 一种小型高精度气体传感器，其在不受任何损坏的情况下，其触头和固定装置之间的电气连接的可靠性优异，包括基座构件; 检测单元，其安装在所述基座构件上，用于检测气体浓度; 安装在检测单元上的电极; 一体地嵌入在基座的端部的圆筒形触点; 并且插入在圆柱形触点和电极之间的电引线。 外部引线的接触固定装置安装在圆柱形触点上并与圆柱形触点接触，使其与圆柱形触点相连接。 圆柱形触点形成在其开口中，具有比内径小的直径的接合入口，并且接触夹具包括弹性接触部分，当插入到圆柱形触点中时，其被插入圆柱形触点中，并且在插入之后被扩张 以变​​得大于接合入口并且接触圆柱形触点的内壁。

公开(公告)号：US5609825A

公开(公告)日：1997-03-11

申请号：US468761

申请日：1995-06-06

申请人： Tomoji Fukaya ,  Naoto Miwa

发明人： Tomoji Fukaya ,  Naoto Miwa

IPC分类号： G01N27/409 ,  G01N27/406 ,  G01N27/26

CPC分类号： G01N27/4067

摘要： To provide an oxygen sensor having a heater unit without being broken by vibration impact of a vehicle, the oxygen sensor includes a cylindrical oxygen detecting element with a closed bottom and a heater unit installed in an inside of the oxygen detecting element. The heater unit includes insulators, the heat generating body helically wound a surface thereof and lead wires. In the insulators, concave portions reaching lead holes are disposed. Lead wires are put through the lead holes from an outer circumferential surface. In the concave portions, the heat generating body and the lead wires are connected. The outer circumference of a winding portion of the heat generating body is preferably formed at a position more inwardly than the outer circumferential surface of the adjacent insulator.

摘要翻译： 为了提供具有加热器单元的氧传感器，不会被车辆的振动冲击破坏，氧传感器包括具有封闭底部的圆柱形氧气检测元件和安装在氧气检测元件内部的加热器单元。 加热器单元包括绝缘体，发热体螺旋地缠绕其表面和引线。 在绝缘体中，设置到达引线孔的凹部。 引线从外周面穿过引线孔。 在凹部中连接发热体和引线。 发热体的卷绕部的外周优选形成在比相邻的绝缘体的外周面更靠内侧的位置。