Fuel additive compositions for fuels for internal combustion engines with improved viscosity properties and good ivd performance
AssigneeBASF SE
InventorsHarald Schwahn, Dietmar Posselt
Life of this patent
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Abstract
The invention relates to fuel additive compositions for internal combustion engines and to fuels that contain the corresponding additives for internal combustion engines. The inventive fuel additive compositions for internal combustion engines have an excellent performance in keeping the inlet system clean and improved viscosity properties, especially at low temperatures.
Claims13
A fuel additive composition, which contains
- a) at least one detergent additive,
- b) a carrier oil mixture comprising
- i) at least one synthetic carrier oil and
- ii) at least one mineral carrier oil, and
- c) if required, further conventional fuel additive components.
A fuel additive composition as claimed in any of the preceding claims, wherein the synthetic carrier oil component has a viscosity of from about 120 to about 270 mm2/s, determined at +20° C. according to DIN 51562, part 1.
A fuel additive composition as claimed in any of the preceding claims, wherein mineral carrier oil components and synthetic carrier oil components are present in a weight ratio of from about 10:1 to about 1:10.
A fuel additive composition as claimed in any of the preceding claims, wherein the detergent additive component comprises a detergent additive selected from polyalkenemonoamines, polyalkenepolyamines, polyetheramines and mixtures thereof.
A fuel additive composition as claimed in any of the preceding claims, which contains
- a) from about 10 to 80% by weight of detergent additive(s),
- b) from about 20 to 90% by weight of a carrier oil mixture, and
- c) if required, from 0 to 30% by weight of further conventional fuel additive components.
A fuel additive composition, which comprises, in addition to a main amount of a hydrocarbon fuel, an amount, which has detergent activity and reduces intake valve deposits, of an additive composition as claimed in any of the preceding claims.
Dependencies are inferred from the claim text.