	US 7,491,247 B1
	Fuel emulsion compositions having reduced NOx emissions
Edward A. Jakush, 2407 Park Pl., Evanston, Ill. 60201 (US); Gerald N. Coleman, 2823 W. Fountaindale Dr., Peoria, Ill. 61614 (US); and Dennis L. Endicott, 7101 S. Stranz Rd., Mapleton, Ill. 61547 (US)
Filed on Aug. 29, 2000, as Appl. No. 9/650,073.
Application 09/650073 is a continuation of application No. 09/109028, filed on Jul. 01, 1998, abandoned.
Int. Cl. C10L 1/32 (2006.01)

U.S. Cl. 44—301 [44/302]

33 Claims

1. A high stability, low emission, invert fuel emulsion composition for an internal combustion engine comprising

purified water;

hydrocarbon petroleum distillate fuel as the continuous phase of the emulsion;

a surfactant package comprising a primary surfactant, a block copolymer stabilizer, and a polymeric dispersant; and

a coupling agent for maintaining phase stability at high temperatures and shear pressures in said internal combustion engine wherein said coupling agent is selected from a group consisting of: a di-acid of a Diels-Alder adduct of unsaturated fatty acids and a tri-acid of a Diels-Alder adduct of unsaturated fatty acids neutralized with an alkanolamine to form a water soluble salt;

wherein said emulsion has an average droplet size ranging from about 0.1 microns to about 1 micron.