发明名称 |
Structure of gas sensor designed to reduce mechanical damage to sensor element |
摘要 |
An improved structure of a gas sensor designed to withstand physical impact which may result in damage such as cracks to a sensor element built in the gas sensor. Specifically, the gas sensor includes a buffer provided by a clearance between an air cover a porcelain insulator. The clearance is in a range of 1 to 2.5 mm at a minimum. The gas sensor may alternatively have a harder portion in the air cover which has a Vickers hardness of 200 to 400. The gas sensor may alternatively have a rigidity enhancer in the air cover which works to provides an increased rigidity to the air cover.
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申请公布号 |
US7178382(B2) |
申请公布日期 |
2007.02.20 |
申请号 |
US20040019724 |
申请日期 |
2004.12.23 |
申请人 |
DENSO CORPORATION |
发明人 |
NODA HIROFUMI;KOJIMA TAKASHI |
分类号 |
G01N7/00;G01N27/403;G01N27/407 |
主分类号 |
G01N7/00 |
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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