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:
Sep. 22, 2026
Filed:
Mar. 18, 2025
Caterpillar Inc., Peoria, IL (US);
Radoslav Boychov Ivanov, Dupnitsa, BG;
Robert Mcdavid, Dunlap, IL (US);
Chad Palmer Koci, Washington, IL (US);
Bobby John, Peoria, IL (US);
Jonathan W. Anders, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A gaseous fuel engine system includes an engine forming a cylinder, and an intake valve movable to open and close an intake port to the cylinder. The engine system also includes a fuel system having a fuel injector to inject a gaseous fuel such as a gaseous hydrogen fuel to mix with a flow of intake air for combustion in the cylinder. The engine system further includes a cam coupled to the intake valve, and a variable valve actuator coupled to the intake valve and arranged to position the intake valve at a flow-throttling middle position to improve fuel and air mixing, such as in response to engine load transients.