US Patent Issued to Caterpillar on July 14 for "Fuel injector sleeve and engine system remanufacturing method using same" (Illinois, Indiana Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,524, issued on July 14, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Fuel injector sleeve and engine system remanufacturing method using same" was invented by Nicholas J. Randklev (Peoria, Ill.), Curtis John Graham (Peoria, Ill.) and Jonathan Richard Chittenden (West Lafayette, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel injector sleeve for use in a remanufactured engine includes an elongate sleeve body including a clamping shoulder facing an axial direction and forming an undercut, and a sealing ridge transitioning between the undercut and an outer sleeve surface. The sealing ridge defines a sealing line radially outward of the ...