Composition for cleaning gasoline engine fuel delivery systems, air intake systems, and combustion chambers
AssigneeThe Lubrizol Corporation
InventorsStuart L. Bartley, Thomas R. Weyenberg, Michael D. Nicholls, Garrett Parker
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Abstract
A cleaning composition, which is suitable for cleaning fuel delivery systems, air-intake systems, intake valves, and combustion chambers, includes at least 3 wt. % of a polyether component, at least 5 wt. % of a polar solvent, and at least 5 wt. % a non-polar solvent. The polyether component is selected from polyethers, polyetheramines, and mixtures thereof.
Claims39
A composition for cleaning fuel delivery systems, air intake systems, and combustion chambers comprising:
- at least 3 wt. % of a polyether component, the polyether component being selected from the group consisting of polyethers, polyetheramines, and mixtures thereof;
- at least 5 wt. % of a polar solvent;
- at least 5 wt. % of a non-polar solvent;
- and
- a functional solvent, other than the polar solvent and non-polar solvent, the functional solvent comprising an alkoxyalcohol.
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A method for removing at least one of air intake valve deposits, fuel injector deposits, and combustion chamber deposits in a spark-ignited internal combustion engine, comprising:
- operating the engine on a composition comprising:
- at least 3 wt. % of a polyether component, the polyether component being selected from the group consisting of polyethers, polyetheramines, and mixtures thereof;
- at least 5 wt. % of a polar solvent;
- at least 5 wt. % a non-polar solvent;
- and
- a functional solvent other than the polar solvent and non-polar solvent, the functional solvent comprising an alkoxyalcohol.
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Dependencies are inferred from the claim text.