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公开(公告)号：US07824531B2
公开(公告)日：2010-11-02
申请号：US09098730
申请日：1998-06-18
申请人： Tomio Sugiyama , Hiromi Sano , Masahiro Shibata , Midori Shibata, legal representative , Natsumi Shibata, legal representative , Raina Shibata, legal representative , Syuichi Nakano
发明人： Tomio Sugiyama , Hiromi Sano , Masahiro Shibata , Syuichi Nakano
IPC分类号： G01N27/406
CPC分类号： G01N27/419
摘要： A multilayered air-fuel ratio sensor consists of a plurality of substrate layers. At least one heterogeneous boundary layer is interposed between the plurality of substrate layers. The heterogeneous boundary layer has a thickness in a range of 10 to 100 μm. The heterogeneous boundary layer absorbs thermal shocks or any other stresses acting on the substrate layers and stops the growth of cracks.
摘要翻译： 多层空燃比传感器由多个基板层构成。 至少一个不均匀的边界层介于多个基底层之间。 异质边界层的厚度在10〜100μm的范围内。 异质边界层吸收热冲击或作用在基底层上的任何其他应力，并阻止裂纹的生长。
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公开(公告)号：US5787866A
公开(公告)日：1998-08-04
申请号：US833801
申请日：1997-04-09
申请人： Tomio Sugiyama , Naoto Miwa , Hiromi Sano , Masahiro Shibata , Syuichi Nakano , Shinichiro Imamura
发明人： Tomio Sugiyama , Naoto Miwa , Hiromi Sano , Masahiro Shibata , Syuichi Nakano , Shinichiro Imamura
IPC分类号： G01N27/419 , G01N27/407 , G01N27/409 , B05D5/12
CPC分类号： G01N27/4071
摘要： An air-fuel ratio sensor comprises a platelike oxygen sensing section made of a solid electrolyte and a heater sheet heating the oxygen sensing section. The oxygen sensing section and the heater sheet are stacked via spacers to constitute a multilayer construction. The heater sheet comprises a first platelike insulating sheet chiefly containing at least one component selected from the group consisting of .alpha.-alumina, steatite and mullite, a filmy resistance element disposed on the first insulating sheet and having a resistance-temperature coefficient within a range of 0.5.times.10.sup.3 to 2.0.times.10.sup.3 ppm/.degree.C., and a second platelike insulating sheet covering the resistance element and chiefly containing at least one component selected from the group consisting of .alpha.-alumina, steatite and mullite.
摘要翻译： 空燃比传感器包括由固体电解质制成的板状氧传感部分和加热氧感测部分的加热器片。 氧传感部分和加热片通过间隔物堆叠构成多层结构。 加热片包括主要包含选自α-氧化铝，滑石和莫来石中的至少一种成分的第一板状绝缘片，设置在第一绝缘片上的耐电阻元件，其电阻温度系数在 0.5×10 3〜2.0×10 3 ppm /℃，以及覆盖电阻元件的第二片状绝缘片，主要含有选自α-氧化铝，滑石和莫来石的至少一种成分。
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公开(公告)号：US5811660A
公开(公告)日：1998-09-22
申请号：US748826
申请日：1996-11-14
IPC分类号： G01N27/419 , G01M15/00
CPC分类号： G01N27/419
摘要： An air-fuel ratio sensing element comprises a pump cell having at least one pair of pump electrodes thereon, a sensor cell having at least one pair of sensor electrodes thereon, and a gas chamber having two surfaces defined by the pump cell and the sensor cell. Two to five gas holes, each having approximately the same diameter and communicating with the gas chamber, are provided for introducing sensed gas into the gas chamber. The gas holes form their projection images on the surface of the sensor cell which has a sensor electrode thereon and faces the gas chamber. The sensor electrode is shaped such that it is dividable into a plurality of similar subsections defined by virtual lines connecting the geometric centroid of the sensor electrode and the center of the projection image of each gas hole.
摘要翻译： 空燃比传感元件包括其上具有至少一对泵电极的泵电池，其上具有至少一对传感器电极的传感器单元和具有由泵电池和传感器单元限定的两个表面的气室 。 设置两个至五个气孔，每个气孔具有大致相同的直径并与气室连通，用于将检测到的气体引入气室。 气孔在其上具有传感器电极并且面对气室的传感器单元的表面上形成其投影图像。 传感器电极被成形为使得其可分割成由连接传感器电极的几何质心和每个气孔的投影图像的中心的虚拟线限定的多个相似的子部分。
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公开(公告)号：US5830339A
公开(公告)日：1998-11-03
申请号：US736911
申请日：1996-10-25
IPC分类号： G01N27/419 , G01N27/407 , G01N27/409
CPC分类号： G01N27/4071
摘要： A gas concentration detector comprises a plate sensor element including a sensing action and a signal output section. A flange section is formed between the sensing section and the signal output section so as to protrude in the lateral direction thereof. A cylindrical housing has an inside space for receiving the sensor element. Powder is disposed in the inside space of the cylindrical housing at a predetermined position adjacent to the flange section so that the sensor element is airtightly fixed to the housing by applying a pressing force on the powder. Furthermore, a cross-sectional area of the signal output section is larger than a cross-sectional area of the sensing section.
摘要翻译： 气体浓度检测器包括包括感测动作的板传感器元件和信号输出部分。 在感测部分和信号输出部分之间形成凸缘部分，以沿其横向方向突出。 圆柱形壳体具有用于接收传感器元件的内部空间。 粉末在与凸缘部分相邻的预定位置处设置在圆柱形壳体的内部空间中，使得传感器元件通过对粉末施加压力而气密地固定到壳体。 此外，信号输出部分的横截面面积大于感测部分的横截面面积。
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公开(公告)号：US6110348A
公开(公告)日：2000-08-29
申请号：US92647
申请日：1998-06-09
IPC分类号： G01N27/419 , G01N27/407 , G01N27/416 , G01N27/26
CPC分类号： G01N27/407
摘要： A main body of a NOx sensor has a sensor cell and defines a reference gas chamber and a sample gas chamber therein. The sample gas chamber has a wall formed by a solid electrolytic substrate having an oxygen ion conductivity. The sensor cell is disposed between the reference gas chamber and the sample gas chamber for detecting a concentration of a NOx gas. A pump cell body of the NOx sensor has a surface facing to the sample gas chamber and has a pump cell for introducing and exhausting an oxygen gas to and from the sample gas chamber. In manufacturing this NOx sensor, the main body and the pump cell body are fabricated individually as separate items. The main body and the pump cell body are sintered independently. Then, the main body and the pump cell body are assembled into to the NOx sensor.
摘要翻译： NOx传感器的主体具有传感器单元并且在其中限定了参考气体室和样品气体室。 样品气室具有由具有氧离子传导性的固体电解质基材形成的壁。 传感器单元设置在参考气体室和样本气体室之间，用于检测NOx气体的浓度。 NOx传感器的泵电池体具有面向样品气体室的表面，并且具有用于将氧气引入和排出到样品气体室的泵室。 在制造该NOx传感器时，主体和泵电池体单独制造成单独的物品。 主体和泵电池体独立烧结。 然后，将主体和泵电池体组装到NOx传感器中。
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公开(公告)号：US06332965B1
公开(公告)日：2001-12-25
申请号：US09100230
申请日：1998-06-19
申请人： Tomio Sugiyama , Naoto Miwa , Masahiro Shibata , Hiromi Sano , Akio Tanaka
发明人： Tomio Sugiyama , Naoto Miwa , Masahiro Shibata , Hiromi Sano , Akio Tanaka
IPC分类号： G01N2726
CPC分类号： G01N27/419
摘要： A composite gas sensor comprises a pump cell, a NOx sensor cell and an oxygen sensor cell. The NOx sensor cell is connected to a first ammeter and a constant power source to measure the NOx concentration of a sample gas. The pump cell is connected to a second ammeter and a variable power source to measure an air-fuel ratio of the sample gas. The oxygen sensor cell is connected to a voltmeter. A controller adjusts the variable power source to produce a constant value from the voltmeter.
摘要翻译： 复合气体传感器包括泵电池，NOx传感器单元和氧传感器单元。 NOx传感器单元连接到第一电流表和恒定电源，以测量样品气体的NOx浓度。 泵单元连接到第二电流表和可变电源，以测量样气的空燃比。 氧传感器电池连接到电压表。 控制器调节可变电源以从电压表产生一个恒定的值。
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公开(公告)号：US06258233B1
公开(公告)日：2001-07-10
申请号：US09237918
申请日：1999-01-27
申请人： Tomio Sugiyama , Masahiro Shibata , Hiromi Sano
发明人： Tomio Sugiyama , Masahiro Shibata , Hiromi Sano
IPC分类号： G01N27409
CPC分类号： G01N27/4073
摘要： A multilayered air-fuel ratio sensing element has a zirconic solid electrolytic body and a heat-generating portion including an alumina substrate located adjacent to the zirconic solid electrolytic body. The zirconic solid electrolytic body is made of a partially stabilized zirconia containing 5˜7 mol % yttria and having a mixed phase structure including a cubic phase, a monoclinic phase and a tetragonal phase. The zirconic solid electrolytic body has a relative density of 94˜100% with a mean sintered grain size RZR of 0.5˜3.0 &mgr;m. The alumina substrate has a relative density of 95˜100% with a mean sintered grain size RAL of 0.5˜4.0 &mgr;m. And, the partially stabilized zirconia has an M/C ratio in a range from 0.05 to 0.25.
摘要翻译： 多层空燃比传感元件具有锆固体电解体和发热部，该发热部包括与锆固体电解体相邻的氧化铝基板。 锆固体电解体由含有5〜7摩尔％氧化钇的部分稳定的氧化锆制成，具有立方相，单斜晶相和四方晶相的混合相结构。 锆固体电解质的相对密度为94〜100％，平均烧结粒度RZR为0.5〜3.0μm。 氧化铝基板的相对密度为95〜100％，平均烧结晶粒尺寸RAL为0.5〜4.0μm。 而且，部分稳定的氧化锆的M / C比在0.05-0.25的范围内。
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公开(公告)号：US5419828A
公开(公告)日：1995-05-30
申请号：US299058
申请日：1994-08-31
IPC分类号： G01N27/41 , G01N27/407 , G01N27/26
CPC分类号： G01N27/4071 , G01N27/4073
摘要： An air fuel ratio detecting apparatus by which a stable oxygen ion limit current may be obtained, including a working electrode and a gas diffusion resistance layer laminated in this order on a first surface of a solid electrolyte. An ambient air introduction duct and an electric heater are laminated in this order on a second surface of the electrolyte. The gas diffusion resistance layer is composed of a gas permeation layer and gas shield layer, which is provided on a surface of the gas diffusion resistance layer. Since the surface of the gas permeation layer is covered by the gas shield layer, the gas to be measured enters into the gas diffusion resistance layer from only side faces of gas diffusion resistance layer. A cell is preferably baked in a one-piece manner. A porosity of the gas permeation layer is in a preferable range of from about 2 to about 60%, a thickness of the gas permeation layer is preferably in a range of from about 5 to about 300 .mu.m, and a porosity of the gas shield layer is preferably no more than 10%. Also, the periphery of the cell is preferably covered by a protective layer.
摘要翻译： 可以获得稳定的氧离子极限电流的空燃比检测装置，其包括在固体电解质的第一表面上依次层叠的工作电极和气体扩散阻力层。 环境空气导入管道和电加热器依次层叠在电解质的第二表面上。 气体扩散阻力层由设置在气体扩散电阻层的表面上的气体渗透层和气体屏蔽层构成。 由于气体渗透层的表面被气体屏蔽层覆盖，所以待测气体仅从气体扩散阻力层的侧面进入气体扩散阻力层。 细胞优选以一体式方式烘烤。 气体渗透层的孔隙率优选为约2％至约60％，气体渗透层的厚度优选在约5至约300μm的范围内，气体屏蔽层的孔隙率 层优选不超过10％。 此外，电池的周边优选被保护层覆盖。
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公开(公告)号：US5447618A
公开(公告)日：1995-09-05
申请号：US226551
申请日：1994-04-12
IPC分类号： G01N27/409 , G01N27/406 , G01N27/407 , G01N27/417 , H01L49/00 , G01N27/26
CPC分类号： B32B18/00 , C04B35/119 , C04B35/486 , G01N27/4067 , G01N27/4071 , C04B2235/3217 , C04B2235/3225 , C04B2235/5445 , C04B2235/6025 , C04B2237/343 , C04B2237/348 , C04B2237/68 , C04B2237/704
摘要： A measuring electrode and a reference plate are formed on the front and rear surfaces, respectively, of the electrolytic plate. The vent plate is provided with a vent channel. The heater base comprises a heating element. The electrolytic plate is made of a green sheet of zirconium oxide consisting of 5 to 7 molar % Y.sub.2 O.sub.3 and 0 to 5 parts by weight of aluminum oxide. The average particle diameter of the zirconium oxide powder is less than 2.0 .mu.m. The green sheet of zirconium oxide has a thickness of 50 to 300 .mu.m. The heater base is made of a green sheet of aluminum oxide consisting of aluminum oxide powder having an average particle diameter of less than 1.0 .mu.m and 0 to 10 parts by weight of zirconium oxide or yttria-stabilized zirconium oxide. The green sheet of aluminum oxide is at least 4 times the thickness of the green sheet of zirconium oxide. To complete the oxygen sensor, these four components are sintered together at 1300.degree. to 1600.degree. C. to be integrated.
摘要翻译： 测量电极和参考板分别形成在电解板的前表面和后表面上。 通风板设有排气通道。 加热器基座包括加热元件。 电解板由5〜7摩尔％的Y 2 O 3和0〜5重量份的氧化铝构成的氧化锆的生片构成。 氧化锆粉末的平均粒径小于2.0μm。 生坯的氧化锆片的厚度为50〜300μm。 加热器基座由平均粒径小于1.0μm的氧化铝粉末和氧化锆或氧化钇稳定的氧化锆为0〜10重量份的氧化铝生坯片构成。 氧化铝的生片是氧化锆生片的厚度的至少4倍。 为了完成氧传感器，将这四种组分在1300℃至1600℃下烧结在一起以进行整合。
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公开(公告)号：US5660661A
公开(公告)日：1997-08-26
申请号：US462210
申请日：1995-06-05
IPC分类号： G01N27/406 , G01N27/407 , B32B9/00
CPC分类号： B32B18/00 , C04B35/119 , C04B35/486 , G01N27/4067 , G01N27/4071 , C04B2235/3217 , C04B2235/3225 , C04B2235/5445 , C04B2235/6025 , C04B2237/343 , C04B2237/348 , C04B2237/68 , C04B2237/704
摘要： A measuring electrode and a reference plate are formed on the front and rear surfaces, respectively, of the electrolytic plate. The vent plate is provided with a vent channel. The heater base comprises a heating element. The electrolytic plate is made of a green sheet of zirconium oxide consisting of 5 to 7 molar % Y.sub.2 O.sub.3 and 0 to 5 parts by weight of aluminum oxide. The average particle diameter of the zirconium oxide powder is less than 2.0 .mu.m. The green sheet of zirconium oxide has a thickness of 50 to 300 .mu.m. The heater base is made of a green sheet of aluminum oxide consisting of aluminum oxide powder having an average particle diameter of less than 1.0 .mu.m and 0 to 10 parts by weight of zirconium oxide or yttria-stabilized zirconium oxide. The green sheet of aluminum oxide is at least 4 times the thickness of the green sheet of zirconium oxide. To complete the oxygen sensor, these four components are sintered together at 1300.degree. to 1600.degree. C. to be integrated.
摘要翻译： 测量电极和参考板分别形成在电解板的前表面和后表面上。 通风板设有排气通道。 加热器基座包括加热元件。 电解板由5〜7摩尔％的Y 2 O 3和0〜5重量份的氧化铝构成的氧化锆的生片构成。 氧化锆粉末的平均粒径小于2.0μm。 生坯的氧化锆片的厚度为50〜300μm。 加热器基座由平均粒径小于1.0μm的氧化铝粉末和氧化锆或氧化钇稳定的氧化锆为0〜10重量份的氧化铝生坯片构成。 氧化铝的生片是氧化锆生片的厚度的至少4倍。 为了完成氧传感器，将这四种组分在1300℃至1600℃下烧结在一起以进行整合。
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