| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas sensor which assures a proper capability of exhausting gas and has a protector capable of effectively protecting a detecting element from coming into with water. <P>SOLUTION: The detection element 10 of the gas sensor 1 is held by a detecting portion 11, projecting from a front-end engaging-portion 56 of a metallic shell 50 and is accommodated for protection in the inner protector 120 (in a gas detection chamber 129). Exhaust gas, introduced into the gas detection chamber 129, is exhausted through an exhaust hole 160, however the exhaust hole is formed by cutting off a portion of a side wall 127 of a recess portion 125, which is formed by pressing inward a portion between two slits formed in a front end wall 124. The bottom wall 126 of the recess portion 125 is located on the frontward side of the detecting element 10, with respect to the direction of an axis O, and prevents water droplets which come flying from the outside from coming into direct contact with the detection element 10. <P>COPYRIGHT: (C)2008,JPO&INPIT |
