| 摘要 |
<p>1524446 Exhaust gas sensor NISSAN MOTOR CO Ltd 8 April 1976 [8 April 1975] 14297/76 Heading G1N A sensor for measuring the air/fuel ratio in exhaust gases comprises a sensor 10 mounted in a housing 16, the housing being mounted in an exhaust pipe and having a plurality of circumferentially spaced openings 22, the degree of opening of which depends on the exhaust gas temperature. As shown, the sensor is a solid electrolyte oxygen sensor and the degree of opening of openings 22 is varied by bi-metallic flaps 24 which close the opening at a value above 800-900‹C. The bi-metallic flaps 24 may be integrally formed with the housing. The housing increases sensor life by reducing the degree of exposure to very hot exhaust gases.</p> |
