发明授权
- 专利标题： Air-fuel ratio sensor
- 专利标题（中）： 空燃比传感器
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申请号： US833801申请日： 1997-04-09
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公开(公告)号： US5787866A公开(公告)日： 1998-08-04
- 发明人: Tomio Sugiyama , Naoto Miwa , Hiromi Sano , Masahiro Shibata , Syuichi Nakano , Shinichiro Imamura
- 申请人： Tomio Sugiyama , Naoto Miwa , Hiromi Sano , Masahiro Shibata , Syuichi Nakano , Shinichiro Imamura
- 申请人地址： JPX Kariya
- 专利权人： Denso Corporation
- 当前专利权人： Denso Corporation
- 当前专利权人地址： JPX Kariya
- 优先权： JPX8-115825 19960412
- 主分类号： G01N27/419
- IPC分类号： G01N27/419 ; G01N27/407 ; G01N27/409 ; B05D5/12
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.