公开(公告)号：US4980042A

公开(公告)日：1990-12-25

申请号：US432444

申请日：1989-11-06

申请人： Haruhisa Shiomi ,  Toshihiko Aoyama ,  Yoshitake Kawachi ,  Ken Minoha

发明人： Haruhisa Shiomi ,  Toshihiko Aoyama ,  Yoshitake Kawachi ,  Ken Minoha

IPC分类号： G01N27/406 ,  G01N27/409

CPC分类号： G01N27/4067

摘要： An oxygen sensor comprising a hollow cylindrical member closed at one end but open at the other to admit a reference gas. There is at least one radial through-hole in the hollow cylindrical member. An oxygen-ion conductive solid electrolyte later has at least one pair of electrodes on its opposite sides. The electrolyte layer is wrapped around the hollow cylindrical member with the electrode on its inner side facing the through hole. In other embodiments, an oxygen sensor is provided which is very insensitive to the direction of flow of the gas to be analyzed. The electrodes of the sensor are spaced at substantially equal intervals on the circumference of a cylindrical solid electrolyte layer in registry with through-holes formed in a hollow tubular member surrounded by the electrolyte layer. A heating unit may be formed on either the inner or outer surface of the solid electrolyte layer.

摘要翻译： 一种氧传感器，包括在一端封闭但在另一端封闭以容纳参考气体的中空圆柱形构件。 中空圆柱形构件中至少有一个径向通孔。 之后的氧离子导电固体电解质在其相对侧上具有至少一对电极。 电解质层缠绕在中空圆柱形构件上，其电极在其内侧面向通孔。 在其它实施例中，提供了对待分析气体的流动方向非常不敏感的氧传感器。 传感器的电极在圆柱形固体电解质层的圆周上以基本上相等的间隔间隔开，与形成在由电解质层包围的中空管状构件中的通孔对齐。 可以在固体电解质层的内表面或外表面上形成加热单元。

公开(公告)号：US5139829A

公开(公告)日：1992-08-18

申请号：US727361

申请日：1991-07-09

申请人： Ken Minoha ,  Haruhisa Shiomi ,  Yoshitake Kawachi

发明人： Ken Minoha ,  Haruhisa Shiomi ,  Yoshitake Kawachi

IPC分类号： C23C26/00 ,  G01N27/407 ,  G01N27/416

CPC分类号： G01N27/4075

摘要： A method for producing an oxygen detection element having uniform pores and an excellent durability against toxic matter contained in the measurement gas. The method includes a first step of applying a paste to be sintered to form a catalytic electrode layer onto at least a part of an oxygen-ion conductive solid-state electrolytic body, and sintering the paste to thereby form said catalytic electrode layer at a predetermined position on said surface of said solid-state electrolytic body after sintering, and a second step of forming an electrode protection layer for coating and protecting at least a part of the catalytic electrode layer either after or simultaneous with the first step. In a first embodiment, the paste contains mainly a noble metal powder acting as a catalyst and an organic metal compound, in a second embodiment mainly co-precipitated powder consisting of a noble metal and a metal hydroxide, and in a third embodiment mainly noble metal powder and a powder of a metal other than a noble metal.

摘要翻译： 一种具有均匀孔的氧检测元件的制造方法和对测定气体中含有的有毒物质的耐久性。 该方法包括：第一步骤，将待烧结的糊料施加到氧离子导电固态电解质体的至少一部分上形成催化剂电极层，并烧结该糊料，从而以预定的方式形成所述催化剂电极层 烧结后所述固体电解质体的表面上的位置，以及在第一步骤之后或与第一步骤同时形成用于涂覆和保护至少一部分催化电极层的电极保护层的第二步骤。 在第一实施方案中，糊料主要含有作为催化剂的贵金属粉末和有机金属化合物，在第二实施方案中主要是由贵金属和金属氢氧化物组成的共沉淀粉末，在第三实施方案中主要是贵金属 粉末和除贵金属以外的金属的粉末。

公开(公告)号：US5242573A

公开(公告)日：1993-09-07

申请号：US298145

申请日：1989-01-18

申请人： Nobuhiro Hayakawa ,  Ken Minoha ,  Yutaka Adachi ,  Haruhisa Shiomi

发明人： Nobuhiro Hayakawa ,  Ken Minoha ,  Yutaka Adachi ,  Haruhisa Shiomi

IPC分类号： C04B37/00 ,  G01N27/409 ,  G01N27/417

CPC分类号： G01N27/417

摘要： An air/fuel ratio sensor is described, comprising an oxygen concentration electrochemical cell and an oxygen pump disposed in a face-to-face relationship with a gap being formed therebetween, the side of said electrochemical cell opposite the side facing said oxygen pump being in contact with the atmosphere, said gap forming a gas diffusion compartment that communicates with a gas to be analyzed by a gas diffusion limiting means, wherein the gap existing between said oxygen concentration electrochemical cell and said oxygen pump has a width of no more than 0.2 mm and no less than 0.01 mm.

摘要翻译： 描述了一种空气/燃料比传感器，其包括氧浓度电化学电池和与其间形成间隙的面对面关系设置的氧气泵，所述电化学电池与面对所述氧气泵的一侧相对的侧面处于 与大气接触，所述间隙形成气体扩散室，其通过气体扩散限制装置与待分析的气体连通，其中存在于所述氧浓度电化学电池和所述氧气泵之间的间隙具有不大于0.2mm的宽度 并且不小于0.01mm。

公开(公告)号：US5194135A

公开(公告)日：1993-03-16

申请号：US228808

申请日：1988-07-29

申请人： Nobuhiro Hayakawa ,  Ken Minoha ,  Yutaka Adachi ,  Haruhisa Shiomi

发明人： Nobuhiro Hayakawa ,  Ken Minoha ,  Yutaka Adachi ,  Haruhisa Shiomi

IPC分类号： G01N27/406 ,  G01N27/409 ,  G01N27/41 ,  G01N27/417

CPC分类号： G01N27/417

摘要： An air/fuel ratio sensor is described, comprising an oxygen concentration electrochemical cell and an oxygen pump disposed in a face-to-face relationship with a gap being formed therebetween, the side of said electrochemical cell opposite the side facing said oxygen pump being in contact with the atmosphere, said gap forming a gas diffusion compartment that communicates with a gas to be analyzed by a gas diffusion limiting means, wherein the gap existing between said oxygen concentration electrochemical cell and said oxygen pump has a width of no more than 0.22 mm and no less than 0.01 mm.

摘要翻译： 描述了一种空气/燃料比传感器，其包括氧浓度电化学电池和与其间形成间隙的面对面关系设置的氧气泵，所述电化学电池与面对所述氧气泵的一侧相对的侧面处于 与大气接触，所述间隙形成气体扩散室，其通过气体扩散限制装置与待分析的气体连通，其中存在于所述氧浓缩电化学电池和所述氧气泵之间的间隙具有不大于0.22mm的宽度 并且不小于0.01mm。

公开(公告)号：US5186809A

公开(公告)日：1993-02-16

申请号：US794663

申请日：1991-11-18

申请人： Toshihiko Aoyama ,  Haruhisa Shiomi ,  Yasuhiro Ujita

发明人： Toshihiko Aoyama ,  Haruhisa Shiomi ,  Yasuhiro Ujita

IPC分类号： G01N27/406 ,  H01G9/02 ,  H01G9/025 ,  H01G9/16

CPC分类号： H01G9/025 ,  G01N27/4067 ,  H01G9/16

摘要： In the joining structure of the solid electrolytic element, terminals connected to the heating element and the electrodes are attached through metallic oxide layers onto the solid electrolytic layer. The thermal conductivity coefficient of the metallic oxide layers is larger than that of the solid electrolytic layer. The thermal expansion coefficient of the metallic oxide layers is the same as or smaller than that of the solid electrolytic layer. Consequently, when the lead wires are soldered to the terminals, heat is quickly conducted to the terminals, enhancing the fluidity and the solderability of the soldering material. Since excess heating is not required for soldering, the solid electrolytic layer is prevented from deteriorating due to heat. Since a low-melting solder is not used, the joining structure has high heat resistance. Moreover, during soldering, the metallic oxide layers do not detach from the solid electrolytic layer due to heat.

摘要翻译： 在固体电解质元件的接合结构中，连接到加热元件的端子和电极通过金属氧化物层附着到固体电解质层上。 金属氧化物层的导热系数大于固体电解质层的导热系数。 金属氧化物层的热膨胀系数与固体电解质层的热膨胀系数相同或更小。 因此，当将引线焊接到端子时，热量迅速传导到端子，增强了焊接材料的流动性和可焊性。 由于焊接不需要多余的加热，所以可以防止固体电解质层由于热而劣化。 由于不使用低熔点焊料，所以接合结构具有高耐热性。 此外，在焊接期间，金属氧化物层由于热而不与固体电解质层分离。