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41. 发明授权

US06354134B1 Oxygen sensing element used in a oxygen sensor 有权
标题翻译：氧传感器中使用的氧气感应元件
公开(公告)号：US06354134B1
公开(公告)日：2002-03-12
申请号：US09196129
申请日：1998-11-20
申请人： Tooru Katafuchi , Kiyomi Kobayashi , Namitsugu Fujii , Hiromi Sano
发明人： Tooru Katafuchi , Kiyomi Kobayashi , Namitsugu Fujii , Hiromi Sano
IPC分类号： G01N2746
CPC分类号： G01N27/4075 , G01N27/407
摘要： A solid electrolytic body has an inside space serving as a reference gas chamber. A sensing electrode and a reference electrode are formed on the surface of the solid electrolytic body. A heater is disposed in the reference gas chamber. A contact portion comprises a region where the heater is brought into contact with the inner surface of the solid electrolytic body and an opposing region on the outer surface of the solid electrolytic body. The sensing electrode includes at least part of the contact portion. A gas receiving surface region, exposed to the measuring gas, extends from an element tip to a position spaced by a distance L away from the element tip. At least part of the contact portion is located in a region extending from the element tip to a position spaced by a distance 0.4L away from the element tip. The sensing electrode is entirely located in a region extending from the element tip to a position spaced by a distance 0.8L away from the element tip.
摘要翻译：固体电解质体具有作为基准气体室的内部空间。感测电极和参考电极形成在固体电解体的表面上。加热器设置在参考气室中。接触部包括加热器与固体电解质体的内表面接触的区域和固体电解体的外表面上的相对区域。感测电极包括接触部分的至少一部分。暴露于测量气体的气体接收表面区域从元件尖端延伸到远离元件尖端间隔距离L的位置。接触部分的至少一部分位于从元件尖端延伸到远离元件尖端间隔0.4L的位置的区域中。感测电极完全位于从元件尖端延伸到与元件尖端间隔0.8L的位置的区域中。

42. 发明授权

US5472591A Oxygen concentration detector having heat-treated support layer providing high responsivity endurance 失效
标题翻译：具有热处理支撑层的氧浓度检测器提供高响应能力
公开(公告)号：US5472591A
公开(公告)日：1995-12-05
申请号：US305712
申请日：1994-09-14
申请人： Toshitaka Saito , Namitsugu Fujii , Yasumichi Hotta , Satoru Nomura , Hiromi Sano , Masatoshi Suzuki
发明人： Toshitaka Saito , Namitsugu Fujii , Yasumichi Hotta , Satoru Nomura , Hiromi Sano , Masatoshi Suzuki
IPC分类号： G01N27/409 , G01N27/407
CPC分类号： G01N27/4075
摘要： An oxygen concentration detector provides high durability by increasing the thermal stability of coating layers applied to an electrode face thereof. A catalyst layer is formed on an outer surface of an electrode at the analysis gas side of a partition wall made of an ion oxygen conductive ceramic for generating electromotive force according to the difference between the concentration of oxygen in the analysis gas and the concentration of oxygen in the reference gas. The catalyst layer is composed of heat resistant ceramic particles and a particulate metallic catalyst made of platinum, rhodium or the like, supported by the surface of the heat resistant ceramic particles. The catalyst layer is formed so that the catalyst is supported by the heat resistant support particles. The support particles are heat treated to grow to a particle size so that particle growth can be restrained when the support particles are exposed to the exhaust gas from an internal combustion engine. The outside of the electrode of the partition wall is covered with support particles having such heat treated large cohered catalyst particles, and good responsivity of the sensor is thereby maintained.
摘要翻译：氧浓度检测器通过增加施加到其电极面上的涂层的热稳定性而提供高耐久性。催化剂层形成在由离子氧传导陶瓷制成的分隔壁的分析气体侧的电极的外表面上，用于根据分析气体中的氧浓度与氧浓度之间的差产生电动势在参考气体中。催化剂层由耐热陶瓷颗粒和由耐热陶瓷颗粒的表面支撑的由铂，铑等制成的颗粒状金属催化剂组成。催化剂层形成为使得催化剂被耐热支撑颗粒支撑。支撑颗粒被热处理以生长成粒径，使得当载体颗粒暴露于来自内燃机的废气时，可以抑制颗粒生长。分隔壁的电极的外侧覆盖有具有这种经热处理的大型粘结催化剂颗粒的支撑颗粒，从而保持传感器的良好的响应性。

43. 发明授权

US4402820A Oxygen analyzer 失效
标题翻译：氧气分析仪
公开(公告)号：US4402820A
公开(公告)日：1983-09-06
申请号：US403045
申请日：1982-07-29
申请人： Hiromi Sano , Masatoshi Suzuki , Masaya Fujimoto , Mitihiro Yamakawa , Toshitaka Saito
发明人： Hiromi Sano , Masatoshi Suzuki , Masaya Fujimoto , Mitihiro Yamakawa , Toshitaka Saito
IPC分类号： G01N27/41 , G01N27/407 , G01N27/409 , G01N27/56 , G01N27/58
CPC分类号： G01N27/4075 , G01N27/4077
摘要： A limiting current type oxygen analyzer designed for detecting oxygen concentration comprising a solid electrolyte element made from an oxygen ion conductive metal oxide and a pair of porous film electrodes provided on the inner and outer sides of said element respectively, at least one side electrodes being coated with a gas-diffusive resistive layer made from a porous insulating metal oxide, wherein the oxygen ions in the gas to which said element is exposed are caused to diffuse in the inside of said electrolyte element by applying a given voltage across said both electrodes and the limiting current corresponding to the concentration of said diffused oxygen ions is measured to determine the oxygen concentration in the gas to be analyzed, further characterized in that said gas-diffusive resistive layer is composed of a three-layer structure consisting of the first, second and third layers counted from the electrode side, said first layer having porosity of 11-15%, the second layer 6-8% and the third layer 15-20%.
摘要翻译：设置用于检测氧浓度的极限电流型氧分析器，其包含由氧离子导电金属氧化物制成的固体电解质元件和分别设置在所述元件的内侧和外侧上的一对多孔膜电极，至少一个侧电极被涂覆具有由多孔绝缘金属氧化物制成的气体扩散电阻层，其中使所述元件暴露的气体中的氧离子在所述电解质元件的内部通过施加给定的电压跨所述两个电极而扩散，并且测量对应于所述扩散的氧离子的浓度的极限电流，以确定待分析气体中的氧浓度，其特征还在于所述气体扩散电阻层由三层结构组成，所述三层结构由第一，第二和第从电极侧计数第三层，所述第一层具有11-15％的孔隙率，第二层6- 8％，第三层15-20％。

44. 发明授权

US4383906A Device for sensing oxygen concentration in an exhaust gas 失效
标题翻译：用于检测废气中氧浓度的装置
公开(公告)号：US4383906A
公开(公告)日：1983-05-17
申请号：US401027
申请日：1982-07-22
申请人： Hiromi Sano , Masatoshi Suzuki
发明人： Hiromi Sano , Masatoshi Suzuki
IPC分类号： G01N27/41 , F02D35/00 , F02D41/14 , G01N27/407 , G01N27/409 , G01N27/416 , G01N27/419 , G01N27/46
CPC分类号： G01N27/407 , G01N27/4078
摘要： A device for sensing the oxygen concentration in an exhaust gas has a cup-like oxygen-ion permeable cylindrical member made of solid electrolyte consisting of oxygen-ion conducting metal oxide. The cylindrical member has an inner circumferential surface communicating with the atmosphere and an outer circumferential surface communicating with the exhaust gas for producing an electromotive force corresponding to a difference between the oxygen concentrations on the inner circumferential surface and on the outer circumferential surface and has a negative-resistance temperature characteristic. A pair of first electrodes serving as a lean sensor each comprise a thin film made of porous metal material and are provided on the inner circumferential surface and outer circumferential surface of the cylindrical member, respectively, in opposed relationship to each other. An oxygen-gas diffusion limiting layer covers the lean sensing electrode on the outer circumferential surface of the cylindrical member. A pair of second electrodes for sensing the oxygen concentration under high load drive mode and the temperature of the cylindrical member each comprises a thin film made of porous metal material and are provided, respectively, on those portions of the inner and outer circumferential surfaces of the cylindrical member which are different from the portions where the first electrodes are provided in opposed relationship to each other. A heater is disposed in the cylindrical member for heating the cylindrical member.
摘要翻译：用于感测排气中的氧浓度的装置具有由氧离子传导性金属氧化物构成的固体电解质制成的杯状氧离子透过性筒状构件。圆柱形构件具有与大气连通的内周面和与废气连通的外周面，用于产生对应于内周面和外周面上的氧浓度之间的差的电动势，并且具有负电阻温度特性。用作稀薄传感器的一对第一电极分别包括由多孔金属材料制成的薄膜，并且分别以相对的关系设置在圆筒形构件的内圆周表面和外圆周表面上。氧气扩散限制层覆盖圆柱形构件的外圆周表面上的稀薄感测电极。用于感测高负载驱动模式下的氧浓度的一对第二电极和圆柱形构件的温度各自包括由多孔金属材料制成的薄膜，并且分别设置在多个金属材料的内周面和外周面的那些部分上与设置有第一电极的部分不同的圆筒部件彼此相对。加热器设置在圆柱形构件中用于加热圆柱形构件。

45. 发明授权

US4362609A Oxygen concentration sensor 失效
标题翻译：氧浓度传感器
公开(公告)号：US4362609A
公开(公告)日：1982-12-07
申请号：US246435
申请日：1981-03-23
申请人： Hiromi Sano , Masatoshi Suzuki , Masahiro Hamaya , Masami Ouki
发明人： Hiromi Sano , Masatoshi Suzuki , Masahiro Hamaya , Masami Ouki
IPC分类号： G01N27/409 , G01N27/407 , G01N27/413 , G01N27/58
CPC分类号： G01N27/4077
摘要： An oxygen concentration sensor including a solid electrolyte member having two portions, one portion being exposed to a gas of interest and the other portion being exposed to the atmosphere, an inner cover formed with a first space communicating portion arranged to communicate with the other portion of the solid electrolyte member, and a water-proof cover enclosing the inner cover to define a ventilating passage between the inner cover and the water-proof cover and formed with a second space communicating portion maintaining the first space communicating portion of the inner cover in communication with the atmosphere through the ventilating passage. The second space communicating portion of the water-proof cover is axially spaced apart from the first space communicating portion of the inner cover by a predetermined distance. Also included is structure to prohibit the flow of water through said ventilating passage. The second space communicating portion is separated from this structure.
摘要翻译：一种氧浓度传感器，包括具有两部分的固体电解质部件，一部分暴露于感兴趣的气体，另一部分暴露于大气中;内盖，形成有第一空间连通部分，其布置成与另一部分所述固体电解质构件和防水盖包围所述内盖，以在所述内盖和所述防水罩之间形成通风通道，并形成有第二空间连通部，所述第二空间连通部保持所述内盖的所述第一空间连通部的连通气氛通过通风通道。防水罩的第二空间连通部分与内盖的第一空间连通部分轴向隔开预定距离。还包括禁止水通过所述通风通道的结构。第二空间连通部分与该结构分离。

46. 发明授权

US4359374A Oxygen sensor 失效
标题翻译：氧传感器
公开(公告)号：US4359374A
公开(公告)日：1982-11-16
申请号：US231318
申请日：1981-02-04
申请人： Hiromi Sano , Masatosi Suzuki , Masaya Fujimoto
发明人： Hiromi Sano , Masatosi Suzuki , Masaya Fujimoto
IPC分类号： G01N27/407 , G01N27/413 , G01N27/58
CPC分类号： G01N27/4075 , G01N27/4077
摘要： An oxygen sensor for detecting an oxygen concentration in a gas under test such as exhaust gas from an internal combustion engine of an automobile. The oxygen sensor comprises an oxygen concentration sensing element made of an oxygen ion conductive metal oxide which produces an electromotive force in accordance with a difference between an oxygen concentration in the gas under test and an oxygen concentration in a reference gas, a porous layer of refractory metal oxide formed on a surface of the oxygen concentration sensing element which is to be exposed to the gas under test, and an electrode formed thereon. The peel-off of the electrode is prevented and a high-response oxygen sensor is provided.
摘要翻译：一种用于检测被测气体中的氧气浓度的氧传感器，例如来自汽车的内燃机的废气。氧传感器包括由氧离子导电金属氧化物制成的氧浓度感测元件，其根据被测气体中的氧浓度与参考气体中的氧浓度之间的差产生电动势，多孔层耐火材料形成在要暴露于被测气体的氧浓度检测元件的表面上的金属氧化物和形成在其上的电极。防止电极的剥离，并提供高反应氧传感器。

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