<p>The use of an effective concentration of a hydrocarbyl amine wherein the hydrocarbyl moiety has a number average molecular weight in the range 140 to 255 as an additive in an unleaded gasoline composition is provided containing 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. A method of operating a direct injection spark ignition engine is also provided.</p>
申请公布号
EP1481041(A1)
申请公布日期
2004.12.01
申请号
EP20030714851
申请日期
2003.03.14
申请人
SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V.
发明人
GRAUPNER, OLAF;MUNDT, MATTHIAS;SCHUETZE, ANDREA;LOUIS, JURGEN JACOBUS JOHANNES;KENDALL, DAVIS ROY;TAIT, NIGEL PETER