| 摘要 |
The gas sensor 100 has a gas flow channel 127 formed therein by an inner protection cover 130. The gas flow channel 127 is formed in the pathway of measured gas from a first outer gas hole 144a formed in an outer protection cover 140 that covers the tip end of a sensor element 110 to a gas inlet port 111 of the sensor element 110. The gas flow channel 127 extends from the rear end side to the tip end side of the sensor element 110 and is open to the sensor element chamber 124 having the gas inlet port 111 disposed therein. In addition, an element-side opening 129 is formed at a distance A1 from the gas inlet port 111, and the distance A1 is greater than or equal to -5 mm and less than or equal to 1.5 mm. Furthermore, the inner protection cover 130 includes a first member 131 and a second member 135, and the gas flow channel 127 is formed as a gap between the first member 131 and the second member 135. |
