This paper describes the design and operation of multi-layered zirconia oxygen sensor for variable air-fuel ratio controlled engine.A compact and rigid sensor chip consisting of two electrochemical cells; pumping cell and sensing cell, and heater has been developed utilizing laminating and co-firing technology. Air-fuel ratio 10 to 25 can be covered by changing the polarity of pumping current. Effect of exhaust gas temperature on air-fuel ratio output signal is small enough to eliminate temperature compensation. No significant deterioration is observed after 50,000 equivalent miles of engine dynamometer testing.


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    Title :

    Multi-Layered Zirconia Oxygen Sensor for Lean Burn Engine Application


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1985



    Publication date :

    1985-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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