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1. 发明授权

US5985118A Solid electrolyte gas concentration detector 失效
标题翻译：固体电解质气体浓度检测仪
公开(公告)号：US5985118A
公开(公告)日：1999-11-16
申请号：US958388
申请日：1997-10-27
申请人： Daisuke Makino , Keigo Mizutani , Hisayoshi Ohta , Yoshimasa Hijikata , Kanehito Nakamura , Hiroshi Mori
发明人： Daisuke Makino , Keigo Mizutani , Hisayoshi Ohta , Yoshimasa Hijikata , Kanehito Nakamura , Hiroshi Mori
IPC分类号： G01N27/416 , G01N27/407 , G01N27/26
CPC分类号： G01N27/4074
摘要： A gas concentration detector using solid electrolyte layers laminated measures a concentration of gas constituents in measuring gas such as exhaust gas of an internal combustion engine without being influenced by oxygen concentration in the measuring gas. The measuring gas is introduced into an inner cavity of the detector and outside air as a reference gas is introduced into an air passage in the detector. Oxygen concentration in the measuring gas in the inner cavity is maintained at a predetermined level by operation of an oxygen pumping cell constituted by an ion conductive solid electrolyte layer and a pair of electrodes formed on both surfaces of the layer. The oxygen concentration in the inner cavity is measured by an oxygen sensor cell having one electrode exposed to the inner cavity and the other electrode exposed to the reference gas. The concentration of the gas constituents in the measuring gas is measured in terms of ion current generated in a detector cell constituted by an ion conductive solid electrolyte layer and a pair of electrodes formed on both surfaces of the layer, one electrode being exposed to the measuring gas in the inner cavity and the other exposed to the reference gas in the air passage. Either one of the sensor cell and detector cell electrodes exposed to the measuring gas in the inner cavity is made of a material active to the gas constituents to be measured and the other electrode is made of a material inactive thereto.
摘要翻译：使用固体电解质层层压的气体浓度检测器不受测量气体中的氧浓度的影响而测量诸如内燃机的废气的测量气体中的气体成分的浓度。当检测器中的空气通道中引入参考气体时，测量气体被引入到检测器和外部空气的内腔中。通过由离子传导固体电解质层和形成在该层的两个表面上的一对电极构成的氧抽吸电池的操作将内腔中的测量气体中的氧浓度保持在预定水平。通过具有暴露于内腔的一个电极和暴露于参考气体的另一电极的氧传感器单元来测量内腔中的氧浓度。测量气体中气体组分的浓度以离子导电固体电解质层和形成在该层的两个表面上的一对电极构成的检测器电池中产生的离子电流来测量，一个电极暴露于测量内腔中的气体，另一个暴露于空气通道中的参考气体。暴露于内腔中的测量气体的传感器单元和检测器单元电极中的任何一个由对待测量的气体成分有活性的材料制成，另一个电极由对其无活性的材料制成。

2. 发明授权

US5676811A Air-fuel ratio detecting device 失效
标题翻译：空燃比检测装置
公开(公告)号：US5676811A
公开(公告)日：1997-10-14
申请号：US789709
申请日：1997-01-27
申请人： Daisuke Makino , Hisayoshi Ohta , Keigo Mizutani , Masataka Naito , Masanori Yamada , Masahiro Shibata , Hiromi Sano
发明人： Daisuke Makino , Hisayoshi Ohta , Keigo Mizutani , Masataka Naito , Masanori Yamada , Masahiro Shibata , Hiromi Sano
IPC分类号： G01N27/419 , G01N27/26
CPC分类号： G01N27/419
摘要： An air-fuel ratio detecting element is composed of an oxygen pump portion and an oxygen sensor portion which are provided on a single solid electrolyte sheet, a heating element, and a spacer. The oxygen pump portion is composed of a pair first of electrodes provided on opposite sides of the solid electrolyte sheet, and a communication hole which is formed through the solid electrolyte sheet and the electrodes. Electrodes are disposed on the solid electrolyte sheet on the same side as the second electrode, whereby the oxygen sensor portion is formed. The spacer has an opening and a slit-like opening. The heating element 4, the spacer, and the solid electrolyte sheet are stacked from bottom to top, and then the stacked assembly is baked. In this case, they are stacked such that the opening faces the first electrodes and the second electrode. By disposing the oxygen pump portion and the oxygen sensor portion on the same solid electrolyte sheet, structure can be made simpler compared with a conventional air-fuel ratio detecting element in which a solid electrolyte sheet is used for each of an oxygen pump portion and an oxygen sensor portion.
摘要翻译：空燃比检测元件由设置在单个固体电解质片，加热元件和间隔件上的氧泵部分和氧传感器部分组成。氧泵部由设置在固体电解质片的相对侧上的一对电极和通过固体电解质片和电极形成的连通孔构成。电极与第二电极位于同一侧的固体电解质片上，形成氧传感器部。间隔件具有开口和狭缝状开口。从底部到顶部堆叠加热元件4，间隔件和固体电解质片，然后烘烤堆叠的组件。在这种情况下，它们堆叠成使得开口面向第一电极和第二电极。通过将氧泵部和氧传感器部配置在相同的固体电解质片上，与以往的空氧燃料比检测元件相比，可以使结构更简单，其中使用固体电解质片作为氧泵部和氧传感器部分。

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