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:
Jan. 07, 2025
Filed:
Feb. 22, 2024
Volvo Truck Corporation, Gothenburg, SE;
Håkan Persson, Torslanda, SE;
Karsten Rohrssen, Gråbo, SE;
VOLVO TRUCK CORPORATION, Gothenburg, SE;
Abstract
A method for operating an internal combustion engine system using gaseous fuel is disclosed. The method includes injecting, by activating a fuel injector to generate a first injection in association with a compression stroke, a first amount of gaseous fuel into a pre-combustion chamber, wherein the first injection and the first amount of gaseous fuel are adapted so that an ignitable fuel-air mix is formed in the pre-combustion chamber but not in a main combustion chamber; igniting, by activating an igniter, the ignitable fuel-air mix in the pre-combustion chamber formed by the first injection; and injecting, by activating the fuel injector to generate a second injection after ignition of the first amount of fuel, a second amount of gaseous fuel into the pre-combustion chamber, wherein the second injection and the second amount of gaseous fuel are adapted so that fuel is forced through the orifices into the main combustion chamber.