发明名称 |
Gas sensor |
摘要 |
A gas sensor is provided which comprises a sensor element for detecting a component of a gas and a cup-shaped protector for covering a detecting section of the sensor element. The protector is dual-walled and have cup-shaped inner and outer protector members. The inner and outer protector members are constructed and arranged so that g1>g2 where g1 is the distance between an inner surface of a circumferential wall of the outer protector member and an outer surface of a circumferential wall of the inner protector member and g2 is the distance between an inner surface of a bottom wall of the outer protector member and an outer surface of a bottom wall of the inner protector member. The outer protector member has at the circumferential wall thereof a plurality of first gas holes. The inner protector member has at the circumferential wall thereof a plurality of second gas holes. When the direction of a tip end of the sensor element is referred to as forward, the first gas holes are disposed forward of the second gas holes. A front end of the sensor element is disposed forward of the second gas holes. The inner and outer protector members have at bottom walls thereof bottom gas holes.
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申请公布号 |
US2002100687(A1) |
申请公布日期 |
2002.08.01 |
申请号 |
US20010769393 |
申请日期 |
2001.01.26 |
申请人 |
ATSUMI TAKAYOSHI;ISHIKAWA SATOSHI |
发明人 |
ATSUMI TAKAYOSHI;ISHIKAWA SATOSHI |
分类号 |
G01N27/409;G01N27/407;(IPC1-7):G01N27/407 |
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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