초록 ▼

To avoid an unacceptably high exhaust gas back pressure when operating diesel engines equipped with a particle filter in the exhaust gas stream, an engine lubricating oil is used that has a catalytically active content of an iron compound in an amount of 5 to 20,000 ppm. The use of the additive faci

To avoid an unacceptably high exhaust gas back pressure when operating diesel engines equipped with a particle filter in the exhaust gas stream, an engine lubricating oil is used that has a catalytically active content of an iron compound in an amount of 5 to 20,000 ppm. The use of the additive facilitates the regeneration of the diesel particle filters by burning, especially under operating conditions of the diesel engine that lead only to relatively low exhaust gas temperatures. Iron compounds proposed are ferrocene, ferrocene derivatives, and iron salts of organic acids.

대표청구항 ▼

An engine lubricating oil for diesel engines equipped with a particulate filter in the exhaust gas system, consisting essentially of a diesel engine lubricating oil and 5-20,000 ppm, based on said engine lubricating oil, of an iron compound selected from the group consisting of ferrocene, an alkylat

An engine lubricating oil for diesel engines equipped with a particulate filter in the exhaust gas system, consisting essentially of a diesel engine lubricating oil and 5-20,000 ppm, based on said engine lubricating oil, of an iron compound selected from the group consisting of ferrocene, an alkylated ferrocene, a bis-ferrocene and a complex salt of an organic acid and iron, in which the ratio of the number of equivalents of the organic acid to the number of iron atoms has a value of 3 or less, wherein said iron compound catalyzes the oxidative regeneration of said particulate filter.