A fleet of nearly 250 cars equipped with experimental catalytic converter systems were tested in taxi, police, state, and municipal fleets in various cities throughout the country. This provided a diversified range of customer service and altitude and climatic conditions. The objective was to evaluate the performance and durability in high mileage field service of experimental catalytic emission control systems. The fleet comprised groups of cars with hardware and calibration variations designed toward the 1975 Federal and California and more advanced emission requirements. The converter systems evaluated were primarily a 260 cubic inch underfloor converter and a 140 cubic inch manifold converter. Both bead and monolith substrate catalysts were examined.Test results showed that on the average the systems successfully controlled emissions to below the 1975 Federal and California requirements for greater than 50,000 miles. Engine misfire conditions did cause converter damage in some instances. Systems designed for the low emission requirements of .41/3.4/.40 grams/mile HC/CO/NOx exceeded those levels at relatively low mileage due to catalyst deterioration.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Catalytic Emission Control System Field Test Program


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1975 Automotive Engineering Congress and Exposition ; 1975



    Publication date :

    1975-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Catalytic emission control system field test program

    Miles, D. / Faix, L. / Lyon, H. | Tema Archive | 1975


    Catalytic emission control system field test program

    Miles,D.L. / Faix,L.F. / Lyon,H.H. et al. | Automotive engineering | 1975


    Ejection test emission control system

    SHEN HAIKUO / WANG QING | European Patent Office | 2020

    Free access


    An Emission Test Facility for Measuring Catalytic Converter Efficiencies

    Laursen,N.W. / General Motors Res.Lab.,US | Automotive engineering | 1979