Although the control of nitrogen oxides from automobile exhaust is not yet required by law, several methods have been investigated to determine how much control is possible and what penalties result. These methods involved spark timing, carburetion, and exhaust recirculation. On one test car, a control system was developed which reduced nitrogen oxides 74% while maintaining hydrocarbon and carbon monoxide control at current (1968) federal levels. However, a 13% loss in fuel economy was incurred, and driveability problems were observed. Application to other car models, deposit accumulation, durability, and performance under extreme weather conditions are all open questions at this time.


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    Title :

    Reduction of Nitrogen Oxides in Automobile Exhaust


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1969 International Automotive Engineering Congress and Exposition ; 1969



    Publication date :

    1969-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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