THE use of ignition quality improver additives has been under active laboratory investigation since the early 1930’s, but economic and fuel availability considerations have not been such as to foster their commercial application. The Navy has, however, conducted evaluation tests of many of the additives that have been made available for testing over the past 15 years.A large number of compounds of various types have been found to be effective in raising the cetane number of diesel fuels. Many of the additives lose their effectiveness, however, when blended with diesel fuel and stored under certain conditions.The results of laboratory engine tests have shown that certain additives do not materially increase piston-ring wear or engine deposits outside the piston-ring belt but show a tendency to cause ring sticking. They generally decreased maximum cylinder pressure, rate of pressure rise, and ignition lag, reduced exhaust smoke to a slight degree, and improved engine startability under certain conditions. At the same time they reduced power output and increased fuel consumption slightly and, in an isolated case, may have contributed to exhaust-valve and injector-valve sticking, and corrosion of the diaphragm in a cylinder pressure pickup.THE use of ignition quality improver additives has been under active laboratory investigation since the early 1930’s, but economic and fuel availability considerations have not been such as to foster their commercial application. The Navy has, however, conducted evaluation tests of many of the additives that have been made available for testing over the past 15 years.A large number of compounds of various types have been found to be effective in raising the cetane number of diesel fuels. Many of the additives lose their effectiveness, however, when blended with diesel fuel and stored under certain conditions.The results of laboratory engine tests have shown that certain additives do not materially increase piston-ring wear or engine deposits outside the piston-ring belt but show a tendency to cause ring sticking. They generally decreased maximum cylinder pressure, rate of pressure rise, and ignition lag, reduced exhaust smoke to a slight degree, and improved engine startability under certain conditions. At the same time they reduced power output and increased fuel consumption slightly and, in an isolated case, may have contributed to exhaust-valve and injector-valve sticking, and corrosion of the diaphragm in a cylinder pressure pickup.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Performance and Stability of Some Diesel Fuel Ignition Quality Improvers


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Pre-1964 SAE Technical Papers ; 1906



    Publication date :

    1951-01-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Effects of Fuel Ignition Improvers on Diesel Engine Performance

    Kamel, Mostafa M. | SAE Technical Papers | 1984


    Effects of fuel ignition improvers on diesel engine performance

    Kamel,M.M. / Cummins,US | Automotive engineering | 1984


    Understanding the Benefits of Detergents and Ignition Improvers in Diesel Fuel

    Dale, D. L. E. / Richards, P. / Rush, M. W. et al. | British Library Conference Proceedings | 1993


    The action of ignition improvers in diesel fuels

    Li,T.M. / Simmons,R.F. | Automotive engineering | 1988


    Ignition improvers for aqueous ammonia as marine fuel

    Schönborn, Alessandro / Lee, Kang-Ki | SAGE Publications | 2023