发明名称 EXHAUST GAS SENSOR
摘要 <P>PROBLEM TO BE SOLVED: To obtain an exhaust gas sensor capable of effectively suppressing element-cracking caused by condensed water occurring the inside of a sensor. <P>SOLUTION: A clearance D1 between a surface of an oxygen measurement section 3a and an inside surface of insertion holes 2b of a holder 2 is dimensionally specified below a clearance D2 between the surface of the oxygen measurement section 3a and an inside surface of the inside protector 4i. Thereby, condensed water occurring in space between the surface of the oxygen measurement section 3a and the inside surfaces of the insertion holes 2b of the holder 2 is easily passed to space between the surface of the oxygen measurement section 3a and the inside surface of the inside protector 4i. Also, condensed water occurring in the space between the surface of the oxygen measurement section 3a and the inside surface of the inside protector 4i is hardly infiltrated into the space between the surface of the oxygen measurement section 3a and the inside surfaces of the insertion holes 2b of the holder 2. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012018178(A) 申请公布日期 2012.01.26
申请号 JP20110205790 申请日期 2011.09.21
申请人 HITACHI AUTOMOTIVE SYSTEMS LTD 发明人 SAKAI SHOICHI;UCHIKAWA AKIRA;TSUKADA MASAO
分类号 G01N27/409 主分类号 G01N27/409
代理机构 代理人
主权项
地址