Clean-burning aviation gasoline additive to eliminate valve seat recession and deposits
AssigneeSwift Fuels, LLC
InventorsChris D'Acosta, Thomas Albuzat, Justin D. Zink, Benjamin Wegenhart
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Abstract
A fuel additive for fuel formulations comprising calcium sulfonates in an amount effective to limit or eliminate valve seat recession in engines utilizing such fuel formulations. The fuel additive may also include a detergent, particularly in an amount to enhance the VSR limiting effect of the calcium sulfonates. Also included are fuel formulations containing calcium sulfonates in a concentration effective to limit vale seat recession in engines utilizing the fuel formulations. Methods for treating VSR in piston engines are also provided.
Claims20
A fuel additive for use in gasoline fuels comprising:
- one or more calcium sulfonates in an amount, upon addition to the gasoline fuel, to be effective to limit valve seat recession in an engine using the fuel.
An aviation gasoline fuel formulation comprising:
- aviation gasoline;
- one or more calcium sulfonates in an amount effective to limit valve seat recession in an engine using the fuel.
A method for treating VSR in a piston aircraft engine using an aviation gasoline, comprising:
- blending with the aviation gasoline an amount of calcium petroleum sulfonates to provide a concentration of 10 ppm in the aviation gasoline as used.
Dependencies are inferred from the claim text.