ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,041, issued on Jan. 27, was assigned to CATERPILLAR INC. (Peoria, Ill.).
"Systems and methods for at-cylinder fuel switching" was invented by Bryan Edward Nelson Jr. (Chillicothe, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An internal combustion engine system is described herein. The systems described herein allow for switching from the methanol to the diesel as a primary fuel at the cylinder rather than at the system. A valve at an inlet of a primary return tank is used to isolate a primary return tank of a primary fuel. A primary fuel pump is deenergized allowing an input valve to open. Pilot fuel is then directed into both a primary fuel...