公开(公告)号：US07122103B2

公开(公告)日：2006-10-17

申请号：US10401560

申请日：2003-03-31

申请人： Shigeo Isitani ,  Futoshi Ichiyanagi ,  Yasuji Orimo ,  Chiharu Katsuyama

发明人： Shigeo Isitani ,  Futoshi Ichiyanagi ,  Yasuji Orimo ,  Chiharu Katsuyama

IPC分类号： G01N27/41

CPC分类号： G01N27/419

摘要： The invention relates to an air/fuel ratio detection apparatus for a gas. This apparatus includes (a) a heater portion having an elongate cylindrical shape; (b) a solid electrolyte layer surrounding the heater portion and activated by heat to conduct oxygen ions therethrough; (c) a first electrode positioned between the heater portion and the solid electrolyte layer; (d) second and third electrodes in contact with an outer surface of the solid electrolyte layer and away from each other; (e) a first voltage applying device for applying a first voltage between the first and second electrodes; (f) a second voltage applying device for applying a second voltage between the first and third electrodes, the second voltage being higher than the first voltage; and (g) a diffusion layer made of a porous material and covering the second electrode to adjust transmission of the gas to the second electrode.

公开(公告)号：US07258771B2

公开(公告)日：2007-08-21

申请号：US10217534

申请日：2002-08-14

申请人： Shigeo Isitani ,  Yasuji Orimo ,  Chiharu Katsuyama ,  Futoshi Ichiyanagi

发明人： Shigeo Isitani ,  Yasuji Orimo ,  Chiharu Katsuyama ,  Futoshi Ichiyanagi

IPC分类号： G01N27/41

CPC分类号： G01N27/4118

摘要： The invention relates to an air/fuel ratio detection apparatus. This apparatus includes (a) a heater portion having an elongate cylindrical shape and heating by applying electricity thereto from outside; (b) a solid electrolyte layer surrounding the heater portion and being activated by heat to conduct oxygen ions therethrough; (c) first and second electrodes in contact with the solid electrolyte layer and being away from each other such that pumping voltage is applied by the first and second electrodes to the solid electrolyte layer; (d) a reference electrode for outputting an air/fuel ratio detection signal, the reference electrode being formed on the solid electrolyte layer and being away from the first and second electrodes; and (e) a diffusion layer made of a porous material and surrounding periphery of the solid electrolyte layer to cover the first and second electrodes and the reference electrode.

摘要翻译： 本发明涉及一种空燃比检测装置。 该装置包括（a）具有细长圆柱形状的加热器部分和从外部向其施加电力的加热; （b）固体电解质层，其围绕加热器部分并通过热量活化以使氧离子通过其中; （c）与固体电解质层接触并彼此远离的第一和第二电极，使得第一和第二电极向固体电解质层施加泵送电压; （d）用于输出空燃比检测信号的参考电极，所述参考电极形成在所述固体电解质层上并远离所述第一和第二电极; 和（e）由多孔材料制成的扩散层，并且围绕固体电解质层的周边覆盖第一和第二电极和参考电极。

公开(公告)号：US20050274614A1

公开(公告)日：2005-12-15

申请号：US11148341

申请日：2005-06-09

申请人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Junji Onozuka ,  Yasuji Orimo

发明人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Junji Onozuka ,  Yasuji Orimo

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

CPC分类号： G01N27/4071 ,  G01N27/4077

摘要： The invention relates to an oxygen-concentration detecting element including (a) a base member constructed of a first insulating material; (b) an electric heater layer formed on the base member to generate a heat when electrically energized; (c) an oxygen-detecting laminated unit formed on the base member, the unit including a solid electrolyte layer activated by the heat; (d) a printed protecting layer covering the base member, the electric heater layer and the oxygen-detecting laminated unit, being constructed of a mixture of a second insulating material and a solid electrolyte material, and having a porous structure provided with voids derived from a void forming agent contained in an amount of 10-80 volume %, based on a total volume of the second insulating material and the void forming agent, prior to a baking for producing the oxygen concentration detecting element; and (e) a porous protecting layer covering the printed protecting layer.

摘要翻译： 本发明涉及一种氧浓度检测元件，包括：（a）由第一绝缘材料构成的基体; （b）形成在所述基底构件上以在被通电时产生热量的电加热器层; （c）形成在所述基底构件上的氧检测层压单元，所述单元包括由所述热激活的固体电解质层; （d）覆盖基材，电加热层和氧检测层压单元的印刷保护层，由第二绝缘材料和固体电解质材料的混合物构成，并且具有多孔结构，该多孔结构具有从 在制造氧浓度检测元件的焙烧之前，基于第二绝缘材料和空隙形成剂的总体积，含有10-80体积％的空隙形成剂; 和（e）覆盖印刷保护层的多孔保护层。

公开(公告)号：US20050274613A1

公开(公告)日：2005-12-15

申请号：US11148337

申请日：2005-06-09

申请人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Junji Onozuka ,  Yasuji Orimo

发明人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Junji Onozuka ,  Yasuji Orimo

IPC分类号： G01N27/407 ,  G01N27/26

CPC分类号： G01N27/4071

摘要： The invention relates to an oxygen-concentration detecting element including (a) a base member of a first insulating material; (b) an electric heater layer formed on the base member to generate a heat when electrically energized; and (c) an oxygen-detecting laminated unit formed on the base member, the unit including a solid electrolyte layer and inner and outer electrodes interposing the solid electrolyte layer therebetween. The inner electrode may be constructed of a noble metal material and voids that are dispersed in the noble metal material and are derived from a void forming agent. The oxygen-concentration detecting element may include a penetration layer for allowing penetration of oxygen therethrough, between the outer surface of the base member and the oxygen-detecting laminated unit. The penetration layer is extended in the axial direction of the base member from the position of the unit.

摘要翻译： 本发明涉及一种氧浓度检测元件，包括：（a）第一绝缘材料的基底部件; （b）形成在所述基底构件上以在被通电时产生热量的电加热器层; 和（c）形成在所述基底构件上的氧检测层压单元，所述单元包括固体电解质层和在其间插入固体电解质层的内电极和外电极。 内部电极可以由贵金属材料和分散在贵金属材料中而衍生自空隙形成剂的空隙构成。 氧浓度检测元件可以包括用于允许氧穿透的穿透层，在基底的外表面和氧气检测层压单元之间。 穿透层从单元的位置沿着基底构件的轴向方向延伸。