US Patent Issued to Caterpillar on March 3 for "Valve arrival time detection in fuel system having dual solenoid operated valves" (Illinois Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,870, issued on March 3, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Valve arrival time detection in fuel system having dual solenoid operated valves" was invented by Mitchell B. Juchems (Eureka, Ill.), Daniel R. Puckett (Peoria, Ill.) and Andrew O. Marrack (Peoria, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Operating a fuel injector in a fuel system for an engine includes energizing a first solenoid actuator to move a spill valve from a first position to a second, closed position, and energizing a second solenoid actuator to move a fuel injection valve in the fuel injector from a closed position to an open position. A pull-in tier of ...