The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2026
Filed:
Feb. 23, 2024
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Chad P. Koci, Washington, IL (US);
Dana R. Coldren, Secor, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 3/28 (2006.01); F02F 3/26 (2006.01); F02B 75/12 (2006.01);
U.S. Cl.
CPC ...
F02F 3/285 (2013.01); F02F 3/26 (2013.01); F02B 2075/125 (2013.01);
Abstract
An engine includes a piston movable within a combustion cylinder, a direct fuel injector, and a hotspot fuel igniter. The hotspot fuel igniter includes a core exposed to the combustion cylinder, to ignite fuel spray plumes of a directly injected fuel, and an insulator insulating the core from heat transfer with a material of the piston. Applications include igniting a range of fuels, including lower cetane number fuels.