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    USE OF GASOLINES FOR REDUCING PRE-IGNITION IN SPARK-IGNITION ENGINES
    1.
    发明公开
    USE OF GASOLINES FOR REDUCING PRE-IGNITION IN SPARK-IGNITION ENGINES 审中-公开
    OTTKRAFTSTOFFEN的用于汽油发动机减少早期点火USE

    公开(公告)号：EP2569401A1

    公开(公告)日：2013-03-20

    申请号：EP11718118.0

    申请日：2011-05-10

    申请人： Shell Internationale Research Maatschappij B.V.

    发明人： CRACKNELL, Roger, Francis ,  DAVIES, Trevor, James ,  KALGHATGI, Gautam, Tavanappa

    IPC分类号： C10L1/06

    CPC分类号： C10L1/06

    摘要： Gasoline fuel formulation having a laminar burning velocity S
    L which is equal to or below that of isooctane at a pressure of 1 bar, a temperature of 300 K and stoichiometric air/fuel mixture strength. The formulation can be used to reduce pre-ignition in a turbocharged spark ignition engine, in particular when operating with an inlet pressure above 1.5 bar absolute. The formulation can thus also be used to reduce engine damage. The invention also provides a method of preparing a gasoline fuel, by mixing gasoline fuel components to achieve a laminar burning velocity S
    L for the resultant mixture which is equal to or below that of isooctane at a pressure of 1 bar, a temperature of 300 K and stoichiometric air/fuel mixture strength. It further provides a method for selecting a gasoline fuel for use in a turbocharged spark ignition engine, based on its laminar burning velocity S
    L .