Lubricating oil composition

A lubricating oil composition for reducing low-speed pre-ignition events or improving oxidation in a spark-ignited direct injection engine is disclosed. The composition includes a detergent additive which comprises either: an oil-soluble sulfonate including both magnesium and calcium as cations; or...

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Bibliographische Detailangaben
Hauptverfasser:	ROBERT WILLIAM SHAW, ALASTAIR ALEXANDER CANT, THOMAS DANIEL WILKINSON, ADAM PAUL MARSH
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	A lubricating oil composition for reducing low-speed pre-ignition events or improving oxidation in a spark-ignited direct injection engine is disclosed. The composition includes a detergent additive which comprises either: an oil-soluble sulfonate including both magnesium and calcium as cations; or an oil-soluble salicylate including both magnesium and calcium as cations. 本发明公开了用于在火花点火的直接喷射式发动机中减少低速预点火事件或改善氧化的润滑油组合物。该组合物包括清净剂添加剂，其包含：包括镁和钙作为阳离子的油溶性磺酸盐；或包括镁和钙作为阳离子的油溶性水杨酸盐。