| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas sensor capable of more precise exhaust gas detection by inhibiting the exhaust gas sensor from deteriorating in the case the dispersed NO<SB>X</SB>trapping agent flows to the exhaust sensor part. <P>SOLUTION: The exhaust gas passage 12 of the internal combustion engine, down stream of the NO<SB>X</SB>trap catalyst carrying potassium as a NO<SB>X</SB>trap agent, the exhaust gas sensor for detecting the exhaust gas ingredients by exposing the sensor element 2 is arranged in which the surface of the sensor element 2 is coated with zeolite 6A of Y type for capturing the potassium. <P>COPYRIGHT: (C)2008,JPO&INPIT |
