Lubricant compositions for direct injection engine

The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and an ashless dispersant. The ashless dispersant may be sel...

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Bibliographic Details
Main Authors Dietz, Jeffry G, Sammut, Alexander, Gieselman, Matthew D, Mosier, Patrick E, Galic Raguz, Mary
Format Patent
LanguageEnglish
Published 04.01.2022
Subjects
BLASTING
CHEMISTRY
COMBUSTION ENGINES
FUELS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS
LIGHTING
LUBRICANTS
LUBRICATING COMPOSITIONS
MECHANICAL ENGINEERING
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
WEAPONS
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Summary:The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and an ashless dispersant. The ashless dispersant may be selected from succinimide compounds prepared from aliphatic or aromatic amines.
Bibliography:Application Number: US202017010948