发明授权
- 专利标题： Air fuel ratio sensor
- 专利标题（中）： 空气燃料比传感器
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申请号： US596438申请日： 1990-10-12
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公开(公告)号： US5174885A公开(公告)日： 1992-12-29
- 发明人: Nobuhiro Hayakawa , Tessho Yamada
- 申请人： Nobuhiro Hayakawa , Tessho Yamada
- 申请人地址： JPX Aichi
- 专利权人： NGK Spark Plug Co. Ltd.
- 当前专利权人： NGK Spark Plug Co. Ltd.
- 当前专利权人地址： JPX Aichi
- 优先权： JPX1-266678 19891013
- 主分类号： G01N27/26
- IPC分类号： G01N27/26 ; G01N27/406 ; G01N27/417 ; G01N27/419
摘要：
The invention provides an air/fuel ratio sensor, including an electrochemical sensor cell and an electrochemical pump cell, which shows both a quick response and a stable limiting current. This is realized by limiting the ratio of the area a of a region A to the area b of a region B on the inner electrode of the electrochemical sensor within a specified range, 0
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