Diesel fuels must have good flow properties at low ambient temperatures. These fuels have lower densities than normal fuels. Fuel-injection pumps work on the basis of volume, and thus the fuel mass flow is reduced by density decrease. This leads to lower engine power. In Finland, for instance, the engine power reduction is about 10% when the fuel is changed from summer grade to arctic winter grade.The problem could be solved in future by using fuel density sensors in electronically governed injection pumps or by using fuel heaters so that vehicles could run on high density fuels also in winter.


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    Title :

    Good Diesel Fuel Cold Properties Reduce Engine Performance


    Additional title:

    Sae Technical Papers


    Contributors:
    Juva, Ari (author) / Mikkonen, Seppo (author)

    Conference:

    1989 Subzero Engineering Conditions Conference and Exposition ; 1989



    Publication date :

    1989-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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