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US 10,934,508 B2Granted
Alkyl hydroxybutyrate cleaning composition and method of cleaning air intake valve deposits
AssigneeValvoline Licensing and Intellectual Property LLC
InventorsHida Hasinovic, David E. Turcotte
Life of this patent
Estimating the term…
Abstract
A cleaning composition is particularly suited for cleaning dirty intake valves. The cleaning composition includes a high solvency surfactant/solvent which has a Kb greater than 100 or polar Hansen solubility parameter greater than 6. The surfactant/solvent is combined with an organic carrier and a surfactant. A wetting agent may also be employed. The cleaning composition is added to the intake air as a mist as the engine is running.
Claims18
A method of cleaning an air intake valve of an engine comprising:
- introducing a cleaning composition into the air intake valve of said engine as said engine is running;
- said cleaning composition comprising:
- a micro-emulsion including an alkyl hydroxybutyrate having a Hansen solubility parameter/polar number greater than 6 and a fuel value sufficiently low that it does not combust in a gasoline engine and having a solvency effective to dissolve buildup on said valves;
- an organic carrier;
- and
- a surfactant effective to establish a micro emulsion of said alkyl hydroxybutyrate and said organic carrier.
3 more elements
A method of cleaning an air intake valve of an engine comprising:
- introducing a cleaning composition into the air intake valve of said engine as said engine is running;
- said cleaning composition comprising:
- a micro-emulsion including butyl 3-hydroxybutyrate having a Hansen solubility parameter/polar number greater than 6 and a fuel value sufficiently low that it does not combust in a gasoline engine and having a solvency effective to dissolve buildup on said valves;
- an organic carrier;
- and
- a surfactant effective to establish a micro emulsion of said butyl 3-hydroxybutyrate and said organic carrier.
3 more elements
Dependencies are inferred from the claim text.