发明名称 |
Air-fuel ratio sensor |
摘要 |
An air-fuel ratio sensor includes a sensor element inserted through a cylindrical housing for detecting an air-fuel ratio in an atmosphere of unburnt gas, and a measured gas side cover disposed on an end of the cylindrical housing so as to cover the sensor element and defining an inside chamber for storing therein a gas to be measured. The cover has a nested structure composed of a plurality of cup-shaped cover members disposed one inside another, each cover member having a gas inlet hole formed in a side wall thereof and a bottom hole formed in a bottom wall thereof. The gas inlet hole of an innermost one of the plural cover members that directly faces the sensor element is offset from an air-fuel ratio detecting portion of the sensor element toward the housing in an axial direction of the sensor.
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申请公布号 |
US2004129069(A1) |
申请公布日期 |
2004.07.08 |
申请号 |
US20030686773 |
申请日期 |
2003.10.17 |
申请人 |
DENSO CORPORATION;NIPPON SOKEN, INC.;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
SAKAWA TOSHIHIRO;MAKINO DAISUKE;IMAMURA HIROO;SATO FUMIHIKO;HIRAI KATSUYA |
分类号 |
G01N27/409;G01N27/407;G01N27/41;(IPC1-7):G01N7/00 |
主分类号 |
G01N27/409 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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