公开(公告)号：US07704358B2

公开(公告)日：2010-04-27

申请号：US11711775

申请日：2007-02-28

申请人： Futoshi Ichiyanagi ,  Akira Uchikawa ,  Shoichi Sakai ,  Goji Matsumoto

发明人： Futoshi Ichiyanagi ,  Akira Uchikawa ,  Shoichi Sakai ,  Goji Matsumoto

IPC分类号： G01N27/26

CPC分类号： G01N27/4071 ,  Y10T29/532 ,  Y10T29/53204

摘要： An oxygen sensor includes a base body portion; and a plurality of function layers laminated on a surface of the base body portion. The function layers includes a solid electrolyte layer adapted to conduct oxygen ions; a reference electrode layer located on a base body portion side of the solid electrolyte layer; a sensing electrode layer located on the opposite side of the solid electrolyte layer to the reference electrode layer; a heater portion adapted to activate the solid electrolyte layer by heating; and a gas diffusion layer formed between the reference electrode layer and the base body portion, and adapted to diffuse a reference gas within the gas diffusion layer. The gas diffusion layer is formed to have a porosity indicating a limit current value ranging between 60 μA and 200 μA. The limit current value is a value of a current flowing between the reference electrode layer and the sensing electrode layer when the current flowing therebetween becomes substantially constant during the process of bringing a voltage applied therebetween higher.

摘要翻译： 氧传感器包括基体部分; 以及层叠在所述基体部的表面上的多个功能层。 功能层包括适于导电氧离子的固体电解质层; 位于固体电解质层的基体部侧的参考电极层; 位于所述固体电解质层的与所述参考电极层相反的一侧的感测电极层; 适于通过加热活化固体电解质层的加热器部分; 以及气体扩散层，其形成在所述参考电极层和所述基体部分之间，并且适于在所述气体扩散层内扩散参考气体。 气体扩散层形成为具有表示60μA至200μA范围内的极限电流值的孔隙率。 极限电流值是当在其间施加较高电压的过程中流动的电流在参考电极层和感测电极层之间流动的电流变得基本恒定时的电流的值。

公开(公告)号：US20070199820A1

公开(公告)日：2007-08-30

申请号：US11711775

申请日：2007-02-28

申请人： Futoshi Ichiyanagi ,  Akira Uchikawa ,  Shoichi Sakai ,  Goji Matsumoto

发明人： Futoshi Ichiyanagi ,  Akira Uchikawa ,  Shoichi Sakai ,  Goji Matsumoto

IPC分类号： G01N27/26 ,  C25B11/00

CPC分类号： G01N27/4071 ,  Y10T29/532 ,  Y10T29/53204

摘要： An oxygen sensor includes a base body portion; and a plurality of function layers laminated on a surface of the base body portion. The function layers includes a solid electrolyte layer adapted to conduct oxygen ions; a reference electrode layer located on a base body portion side of the solid electrolyte layer; a sensing electrode layer located on the opposite side of the solid electrolyte layer to the reference electrode layer; a heater portion adapted to activate the solid electrolyte layer by heating; and a gas diffusion layer formed between the reference electrode layer and the base body portion, and adapted to diffuse a reference gas within the gas diffusion layer. The gas diffusion layer is formed to have a porosity indicating a limit current value ranging between 60 μA and 200 μA. The limit current value is a value of a current flowing between the reference electrode layer and the sensing electrode layer when the current flowing therebetween becomes substantially constant during the process of bringing a voltage applied therebetween higher.

摘要翻译： 氧传感器包括基体部分; 以及层叠在所述基体部的表面上的多个功能层。 功能层包括适于导电氧离子的固体电解质层; 位于固体电解质层的基体部侧的参考电极层; 位于所述固体电解质层的与所述参考电极层相反的一侧的感测电极层; 适于通过加热活化固体电解质层的加热器部分; 以及气体扩散层，其形成在所述参考电极层和所述基体部分之间，并且适于在所述气体扩散层内扩散参考气体。 气体扩散层形成为具有指示在60μA至200μA之间的极限电流值的孔隙率。 极限电流值是当在其间施加较高电压的过程中流动的电流在参考电极层和感测电极层之间流动的电流变得基本恒定时的电流的值。

公开(公告)号：US07655122B2

公开(公告)日：2010-02-02

申请号：US11016916

申请日：2004-12-21

申请人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Junji Onozuka ,  Goji Matsumoto

发明人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Junji Onozuka ,  Goji Matsumoto

IPC分类号： G01N27/26

CPC分类号： G01N27/4071

摘要： An oxygen concentration detecting element including a base member made of an electrically insulating material, a heater disposed on an outer surface of the base member, the heater being adapted to generate heat upon being energized, and an oxygen detecting unit disposed in an offset position on the outer surface of the base member in which the oxygen detecting unit is prevented from overlapping with the heater, the oxygen detecting unit including a solid electrolyte layer and a pair of electrodes between which the solid electrolyte layer is disposed.

摘要翻译： 一种氧浓度检测元件，包括由电绝缘材料制成的基底构件，设置在所述基底构件的外表面上的加热器，所述加热器适于在通电时产生热量;以及氧气检测单元，设置在偏移位置上 防止氧检测单元与加热器重叠的基底构件的外表面，氧检测单元包括固体电解质层和设置固体电解质层的一对电极。

公开(公告)号：US20050158459A1

公开(公告)日：2005-07-21

申请号：US11016916

申请日：2004-12-21

申请人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Junji Onozuka ,  Goji Matsumoto

发明人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Junji Onozuka ,  Goji Matsumoto

IPC分类号： G01N27/409 ,  G01N27/407 ,  B05D3/02 ,  G01N27/26

CPC分类号： G01N27/4071

摘要： An oxygen concentration detecting element including a base member made of an electrically insulating material, a heater disposed on an outer surface of the base member, the heater being adapted to generate heat upon being energized, and an oxygen detecting unit disposed in an offset position on the outer surface of the base member in which the oxygen detecting unit is prevented from overlapping with the heater, the oxygen detecting unit including a solid electrolyte layer and a pair of electrodes between which the solid electrolyte layer is disposed.

摘要翻译： 一种氧浓度检测元件，包括由电绝缘材料制成的基底构件，设置在所述基底构件的外表面上的加热器，所述加热器适于在通电时产生热量;以及氧气检测单元，设置在偏移位置上 防止氧检测单元与加热器重叠的基底构件的外表面，氧检测单元包括固体电解质层和设置固体电解质层的一对电极。

公开(公告)号：US20070084725A1

公开(公告)日：2007-04-19

申请号：US11580899

申请日：2006-10-16

申请人： Shoichi Sakai ,  Keiji Mori ,  Futoshi Ichiyanagi ,  Akira Uchikawa ,  Masami Kawashima ,  Masao Tsukada

发明人： Shoichi Sakai ,  Keiji Mori ,  Futoshi Ichiyanagi ,  Akira Uchikawa ,  Masami Kawashima ,  Masao Tsukada

IPC分类号： G01N27/26

CPC分类号： G01N27/4077

摘要： An oxygen sensor including an oxygen concentration sensing unit including a pair of electrodes and a solid electrolyte layer which is disposed between the pair of electrodes and has an oxygen ion conductivity. A porous protective coat is disposed on an outer surface of the oxygen concentration sensing unit. A protector covers the oxygen concentration sensing unit via a space between the protector and the porous protective coat and has a plurality of inlet holes through which a gas to be measured is introduced into the space. A ratio of a thickness of the porous protective coat to a diameter of each of the plurality of inlet holes is in a range of from 5% to 50%.

摘要翻译： 一种氧传感器，包括氧浓度感测单元，其包括一对电极和固体电解质层，所述固体电解质层设置在所述一对电极之间并具有氧离子传导性。 在氧浓度检测单元的外表面上设置多孔保护层。 保护器通过保护器和多孔保护涂层之间的空间覆盖氧浓度感测单元，并且具有多个入口孔，待测量的气体通过该入口孔被引入到空间中。 多孔保护层的厚度与多个入口孔的直径的比率在5％〜50％的范围内。

公开(公告)号：US20070108051A1

公开(公告)日：2007-05-17

申请号：US11600193

申请日：2006-11-16

申请人： Futoshi Ichiyanagi ,  Keiji Mori ,  Masami Kawashima ,  Akira Uchikawa ,  Shoichi Sakai ,  Masao Tsukada

发明人： Futoshi Ichiyanagi ,  Keiji Mori ,  Masami Kawashima ,  Akira Uchikawa ,  Shoichi Sakai ,  Masao Tsukada

IPC分类号： G01N27/26

CPC分类号： G01N27/4077

摘要： In an oxygen sensor, a basic body is provided and a plurality of function layers are laminated on a surface of the basic body, the function layers including at least a solid electrolyte layer having an oxygen ion conductivity and a pair of electrode layers between which the solid electrolyte layer is inserted, a firing being carried out after the function layers are laminated on the surface of the basic body and, during the firing, a sintering of the basic body and the function layers being sequentially progressed toward an outer surface of the function layers from the basic body.

摘要翻译： 在氧传感器中，设置基体，在基体的表面层叠多个功能层，所述功能层至少包括具有氧离子传导性的固体电解质层和一对电极层， 插入固体电解质层，在功能层层叠在基体的表面上之后进行烧成，并且在烧制期间，基体和功能层的烧结依次前进到功能的外表面 从基本的身体层。

公开(公告)号：US06332966B1

公开(公告)日：2001-12-25

申请号：US09597158

申请日：2000-06-20

申请人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Toshiaki Inoue

发明人： Shoichi Sakai ,  Futoshi Ichiyanagi ,  Toshiaki Inoue

IPC分类号： G01N27409

CPC分类号： G01N27/419

摘要： An A/F ratio detecting arrangement includes a sensor casing having an oxygen sensor part arranged between first and second electrodes and an oxygen pump part arranged between third and fourth electrodes, which are heated by a heater. A signal output processing circuit serves to provide an A/F ratio signal. A signal switcher serves to provide a provisional oxygen content signal derived from the first and second electrodes when the oxygen pump part is not activated yet, and the A/F ratio signal when the oxygen pump part is activated.

摘要翻译： A / F比检测装置包括传感器外壳，其具有布置在第一和第二电极之间的氧传感器部分和布置在第三和第四电极之间的氧气泵部件，其被加热器加热。 信号输出处理电路用于提供A / F比信号。 信号切换器用于当氧泵部分未激活时提供从第一和第二电极得到的临时氧含量信号，以及当氧气泵部分被激活时的A / F比信号。

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。

公开(公告)号：US07258772B2

公开(公告)日：2007-08-21

申请号：US10431534

申请日：2003-05-08

申请人： Shoichi Sakai ,  Futoshi Ichiyanagi

发明人： Shoichi Sakai ,  Futoshi Ichiyanagi

IPC分类号： G01N27/409 ,  G01N27/41

CPC分类号： G01N27/419

摘要： In an oxygen sensor that measures a limiting current of when a voltage is applied between pumping electrodes, and also performs a rich/lean judgment based on an electromotive force generated between one of the pumping electrodes and a reference electrode, an oxygen supply voltage for supplying oxygen to the reference electrode is applied, and the reference electrode is covered with a dense layer.

摘要翻译： 在氧传感器中，测量在泵浦电极之间施加电压时的极限电流，并且还基于在一个泵浦电极和参考电极之间产生的电动势来执行富/稀的判断，用于供应氧供应电压 施加到参考电极的氧，并且用致密层覆盖参考电极。

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。