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1. 发明授权

US06174489B1 Method for manufacturing a gas sensor unit 有权
标题翻译：气体传感器单元的制造方法
公开(公告)号：US06174489B1
公开(公告)日：2001-01-16
申请号：US09140422
申请日：1998-08-26
申请人： Kiyomi Kobayashi , Naoto Miwa , Toshitaka Saito , Hiromi Sano , Namitsugu Fujii
发明人： Kiyomi Kobayashi , Naoto Miwa , Toshitaka Saito , Hiromi Sano , Namitsugu Fujii
IPC分类号： C07B3332
CPC分类号： G01N27/4073
摘要： A method for manufacturing an oxygen sensor unit of the type which includes at least a shaped body of a solid electrolyte, an inner electrode provided on an inside surface of the shaped body and exposed to a reference gas, an outer electrode provided on an outside surface of the shaped body and exposed to a gas to be measured, and a porous protective layer covering the outer electrode and a portion of the shaped body adjoining to said outer electrode wherein the solid electrolyte is made of a mixture of zirconia and a stabilizer therefor and is constituted of a sintered product of partially stabilized zirconia. The method is characterized in that the partially stabilized, sintered zirconia is obtained according to a high temperature sintering process which includes at least the step of sintering the mixture at a temperature of 1200° C. or over for a duration of 2 to 6 hours wherein a value obtained by integrating a variation in the sintering temperature with the duration in the sintering process is in the range of 300 to 1500° C.·hour.
摘要翻译：一种制造氧传感器单元的方法，该氧传感器单元至少包括固体电解质的成形体，设置在成形体的内表面上并暴露于参考气体的内电极，设置在外表面上的外电极并暴露于要测量的气体，以及覆盖外电极的多孔保护层和与所述外电极相邻的成形体的一部分，其中固体电解质由氧化锆及其稳定剂的混合物制成，由部分稳定化的氧化锆的烧结体构成。该方法的特征在于，部分稳定的烧结氧化锆根据高温烧结方法获得，其至少包括在1200℃或更高温度下烧结混合物2至6小时的步骤，其中通过将烧结温度的变化与烧结过程中的持续时间相结合而获得的值在300〜1500℃的范围内。

2. 发明授权

US06344118B1 Structure of oxygen sensing element 有权
标题翻译：氧传感元件的结构
公开(公告)号：US06344118B1
公开(公告)日：2002-02-05
申请号：US09130902
申请日：1998-08-07
申请人： Kiyomi Kobayashi , Namitsugu Fujii , Yasumichi Hotta , Hiromi Sano
发明人： Kiyomi Kobayashi , Namitsugu Fujii , Yasumichi Hotta , Hiromi Sano
IPC分类号： G01N2726
CPC分类号： G01N27/4075
摘要： An improved structure of an oxygen sensing element installed in an oxygen sensor designed to measure an oxygen content in gases is provided. The structure includes a cup-shaped solid electrolyte body, an inner electrode, and an outer electrode. The solid electrolyte body has a portion exposed to the gases which has a given length. The inner electrode is formed on an inner wall of the solid electrolyte body and exposed to air. The outer electrode is formed on an outer wall of the solid electrolyte body and exposed to the gases through a protective layer. The oxygen content in the gases is measured based on output signals from the inner and outer electrodes. The outer electrode occupies an area on the outer wall of the solid electrolyte body within a range of 80% of the given length of the gas-exposed portion of the solid electrolyte body and has a thickness ranging from 1.2 to 3.0 &mgr;m. This allows the oxygen sensing element to determine the oxygen content in the gases precisely and to have an improved heat-resistance.
摘要翻译：提供了安装在氧传感器中的氧传感元件的改进结构，其设计用于测量气体中的氧含量。该结构包括杯状固体电解质体，内部电极和外部电极。固体电解质体具有暴露于具有给定长度的气体的部分。内部电极形成在固体电解质体的内壁上并暴露于空气中。外电极形成在固体电解质体的外壁上并通过保护层暴露于气体。基于来自内外电极的输出信号测量气体中的氧含量。外部电极在固体电解质体的气体暴露部分的给定长度的80％的范围内占据固体电解质体外壁上的区域，并且具有1.2-3.0μm的厚度。这允许氧气感测元件精确地确定气体中的氧含量并且具有改善的耐热性。

3. 发明授权

US5766672A Method of manufacturing an oxygen concentration detector element 失效
标题翻译：氧浓度检测元件的制造方法
公开(公告)号：US5766672A
公开(公告)日：1998-06-16
申请号：US704927
申请日：1996-08-28
申请人： Yasumichi Hotta , Hiromi Sano , Namitsugu Fujii , Naoto Miwa
发明人： Yasumichi Hotta , Hiromi Sano , Namitsugu Fujii , Naoto Miwa
IPC分类号： G01N27/409 , G01N27/407 , B05D5/12
CPC分类号： G01N27/4075
摘要： An oxygen concentration detector element 2 includes a cup-shaped solid electrolyte 20 with an inside chamber 25 opened at one end and closed at the other end. An external electrode 21 is formed on an outer surface of solid electrolyte 20 by dipping solid electrolyte 20 in first chemical plating liquid 81, while an internal electrode 22 is formed on an inner surface of solid electrolyte 20 by introducing second chemical plating liquid 82 into inside chamber 25. First, in an injecting step, an injection needle 11 is inserted into inside chamber 25 and second chemical plating liquid 82 is introduced into inside chamber 25 via injection needle 11, and then injection needle 11 is pulled out of inside chamber 25. Next, in a plating step, internal electrode 22 is formed on the inner surface of inside chamber 25 using second chemical plating liquid 82. Then, in a discharging step, residual second chemical plating liquid 82 is discharged from inside chamber 25.
摘要翻译：氧浓度检测元件2包括杯状固体电解质20，其内侧室25在一端开口并在另一端封闭。通过在第一化学镀液81中浸渍固体电解质20而在固体电解质20的外表面上形成外部电极21，而在固体电解质20的内表面上形成内部电极22，通过将第二化学镀液82引入到内部电极首先，在注射步骤中，将注入针11插入内部腔25中，并且将第二化学镀液82经由注射针11引入到内部腔25内，然后将注射针11从内部腔25中拉出。接着，在电镀工序中，使用第二化学镀液82在内部室25的内表面上形成内部电极22.然后，在排出工序中，残留的第二化学镀液82从内部室25排出。

4. 发明授权

US5766434A Oxygen concentration detecting device and method for fabricating the same 失效
标题翻译：氧浓度检测装置及其制造方法
公开(公告)号：US5766434A
公开(公告)日：1998-06-16
申请号：US797652
申请日：1997-01-31
申请人： Namitsugu Fujii , Hiromi Sano , Yasumichi Hotta , Naoto Miwa , Motoaki Satou
发明人： Namitsugu Fujii , Hiromi Sano , Yasumichi Hotta , Naoto Miwa , Motoaki Satou
IPC分类号： G01N27/407 , G01N27/26
CPC分类号： G01N27/4075 , G01N27/4077
摘要： An oxygen concentration detecting device comprises a solid electrolyte body, inner and outer electrodes formed on the opposite sides of the solid electrolyte body, and a protective layer formed on the outer electrode and comprised of coarse particles and fine particles mutually bonded through an inorganic binder while substantially keeping the original forms of the both types of particles. A ratio of an average particle size, RB, of the coarse particles to an average particle size, RA, of the fine particles of 30:1 or above, and a content, WA, of the fine particles in the protective layer based on the total content, W, of the content, WA, of the fine particles and the content, WB, of the coarse particles on the weight basis is in the range of 15 to 80 %. A method for fabricating the detecting device having such a protective layer as set out above is also described.
摘要翻译：氧浓度检测装置包括固体电解质体，形成在固体电解质体的相对侧的内部和外部电极，以及形成在外部电极上的保护层，其由通过无机粘合剂相互粘合的粗粒子和微粒组成，基本保持两种类型颗粒的原始形式。基于上述保护层中的微粒的粗粒子的平均粒径RB与微粒的平均粒径RA（30:1以上）和含量WA的比例粗颗粒的含量W W，微粒的含量W和重量的含量WB在15〜80％的范围内。还描述了制造具有上述保护层的检测装置的方法。

5. 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。

6. 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。

7. 发明授权

US5593558A Oxygen concentration detector 失效
标题翻译：氧浓度检测仪
公开(公告)号：US5593558A
公开(公告)日：1997-01-14
申请号：US467144
申请日：1995-06-06
申请人： Hiroshi Sugino , Yasumichi Hotta , Namitsugu Fujii , Masahiro Shibata , Hiromi Sano
发明人： Hiroshi Sugino , Yasumichi Hotta , Namitsugu Fujii , Masahiro Shibata , Hiromi Sano
IPC分类号： G01N27/407 , G01N27/26
CPC分类号： G01N27/4075
摘要： An oxygen concentration detector includes a one-end closed cylindrical oxygen sensing element having an inside electrode, outside electrode provided on the inner side and outer side respectively, an electrode protecting layer made up of ceramics porous member provided further outside the outside electrode, and a trap layer 1 of ceramics porous member having a surface roughness of 20 to 100 .mu.m measured according to a 10 point mean roughness measurement and provided outside the electrode protecting layer is employed. By dipping the to-be-detected gas side surface of an oxygen sensing element into a slurry with coarse heat-resisting metal oxide particles, 2 to 50 .mu.m in average grain size, dispersed, depositing the slurry on the surface of a protective layer of an oxygen sensor element, thereafter drying and baking the deposit, a porous poisonous substance trap layer, 10 to 500 .mu.m thick, is formed. The dipping is performed after a previous degassing and strong stirring of said slurry and the stop of stirring.
摘要翻译：氧浓度检测器包括：一端封闭的圆柱形氧传感元件，其具有内电极，设置在内侧和外侧的外电极，由设置在外电极外侧的陶瓷多孔体构成的电极保护层，以及使用根据10点平均粗糙度测量测量并设置在电极保护层外侧的表面粗糙度为20至100μm的陶瓷多孔构件的捕获层1。通过将氧检测元件的待检测气体侧表面浸入具有粗糙的耐热金属氧化物颗粒的浆料中，平均粒径为2至50μm，分散，将浆料沉积在保护层的表面上的氧传感器元件，然后干燥和烘烤沉积物，形成10至500μm厚的多孔有害物质捕获层。在先前脱气并强烈搅拌所述浆料并停止搅拌之后进行浸渍。

8. 发明授权

US07211222B2 Gas sensor 有权
标题翻译：气体传感器
公开(公告)号：US07211222B2
公开(公告)日：2007-05-01
申请号：US10201302
申请日：2002-07-24
申请人： Motoaki Satou , Kiyomi Kobayashi , Masanobu Yamauchi , Namitsugu Fujii
发明人： Motoaki Satou , Kiyomi Kobayashi , Masanobu Yamauchi , Namitsugu Fujii
IPC分类号： B32B5/02 , B32B27/04 , B32B27/12 , G01N7/00 , G01N21/00
CPC分类号： G01N27/4077 , Y10T436/20 , Y10T436/208339 , Y10T436/21 , Y10T436/218
摘要： A powder filler is stuffed in a filler space defined between a housing and a gas sensing element so as to airtightly seal a clearance between the housing and the gas sensing element. The powder filler contains grains whose diameter is in a range from 80 μm to 5,000 μm when measured before being stuffed into the filler space. A weight percentage of the grains having the diameter of 80 μm to 5,000 μm is equal to or larger than 80% with respect to an overall weight of the powder filler.
摘要翻译：粉末填料填充在壳体和气体感测元件之间的填充空间中，以密封地密封壳体和气体感测元件之间的间隙。粉末填充剂在填充到填料空间内时，测量直径在80μm至5,000μm之间的颗粒。相对于粉末填料的总重量，直径为80μm〜5000μm的粒子的重量百分比为80％以上。

9. 发明授权

US06849291B2 Gas sensing element and method for manufacturing the same 有权
标题翻译：气体传感元件及其制造方法
公开(公告)号：US06849291B2
公开(公告)日：2005-02-01
申请号：US10271534
申请日：2002-10-17
申请人： Gang E , Kiyomi Kobayashi , Yasumichi Hotta , Namitsugu Fujii
发明人： Gang E , Kiyomi Kobayashi , Yasumichi Hotta , Namitsugu Fujii
IPC分类号： G01N27/409 , C23C18/08 , C23C18/14 , C23C18/18 , F02B77/08 , G01N27/407 , B05D5/12
CPC分类号： G01N27/4075 , C23C18/08 , C23C18/14 , C23C18/165
摘要： A gas sensing element has a solid electrolytic body, a reference gas side electrode provided on a surface of the solid electrolytic body so as to be exposed to a reference gas, and a measured gas side electrode provided on another surface of the solid electrolytic body so as to be exposed to a measured gas. A crystal face strength ratio of the measured gas side electrode according to X-ray diffraction is 0.7≦{I(200)/I(111)} or 0.6≦{I(220)/I(111)}.
摘要翻译：气体感测元件具有固体电解体，设置在固体电解体的表面上以暴露于参考气体的参考气体侧电极和设置在固体电解体的另一个表面上的测量气体侧电极，暴露于测量的气体。根据X射线衍射测得的气体侧电极的晶面强度比为0.7 <= {I（200）/ I（111）}或0.6 <= {I（220）/ I（111）}。

10. 发明授权

US06409899B1 Gas sensor element with lead-proof effect 失效
标题翻译：气体传感器元件具有防铅效果
公开(公告)号：US06409899B1
公开(公告)日：2002-06-25
申请号：US09511079
申请日：2000-02-23
申请人： Motoaki Satou , Yasumichi Hotta , Namitsugu Fujii , Hiromi Sano
发明人： Motoaki Satou , Yasumichi Hotta , Namitsugu Fujii , Hiromi Sano
IPC分类号： G01N27407
CPC分类号： G01N27/4077
摘要： A sensor element has a solid electrolyte body holding a reference gas side electrode and a measurement gas side electrode on surfaces thereof. The measurement gas side electrode is covered with a porous protective layer including a component as a lead getter, which reacts with lead contained in measurement gas. Accordingly, lead is removed from measurement gas by the protective layer not to be attached to the measurement gas side electrode. As a result, the sensor element can be used in measurement gas containing lead, without deteriorating responsibility and output thereof.
摘要翻译：传感器元件具有在其表面上保持参考气体侧电极和测量气体侧电极的固体电解质体。测量气体侧电极被多孔保护层覆盖，该多孔保护层包括与测量气体中所含的铅反应的作为引线吸气剂的部件。因此，通过不附接到测量气体侧电极的保护层将铅从测量气体中除去。结果，传感器元件可以用于含铅的测量气体中，而不会降低其责任和输出。

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