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US 12,686,829 B2Granted
Use and method
AssigneeInnospec Limited
InventorsJacqueline Reid, John Nigel Broom
Life of this patent
Estimating the term…
Abstract
The use of a nitrogen containing detergent as an additive in a diesel fuel composition to reduce the impact of deposits in a post combustion system of a diesel engine when combusting said diesel fuel composition.
Claims22
A method of reducing the impact of deposits in a post combustion system of a diesel engine, the method comprising combusting in the engine a diesel fuel composition comprising as an additive one or more nitrogen containing detergent, wherein the method reduces the formation of deposits in the post combustion system of a diesel engine;
- and wherein
- the one or more nitrogen containing detergents are selected from:
- (a) quaternary ammonium salt additives;
- (b) the reaction product of a carboxylic acid-derived acylating agent and an amine;
- (c) the product of a Mannich reaction between an aldehyde, an amine and an optionally substituted phenol;
- and
- (d) mixtures thereof.
4 more elements
Dependencies are inferred from the claim text.