<p>The invention provides the use of an effective concentration of a hydrocarby l amine wherein the hydrocarbyl moiety has a number average molecular weight i n the range 140 to 255 as an additive in an unleaded gasoline composition comprising a major proportion of a gasoline suitable for use in a spark ignition engine, for reducing injector nozzle fouling in a direct injection spark ignition engine; an unleaded gasoline composition suitable for such us e; and a method of operating a direct injection spark ignition engine.</p>
申请公布号
CA2478968(A1)
申请公布日期
2003.09.18
申请号
CA20032478968
申请日期
2003.03.14
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
GRAUPNER, OLAF;MUNDT, MATTHIAS;SCHUETZE, ANDREA;TAIT, NIGEL, PETER;KENDALL, DAVIS ROY;LOUIS, JURGEN JACOBUS JOHANNES