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. 06, 2026
Filed:
Aug. 29, 2022
Kubota Corporation, Osaka, JP;
Yasushi Kobayashi, Sakai, JP;
Naotaro Nagai, Sakai, JP;
Rina Kaneko, Sakai, JP;
Masanari Tennomi, Sakai, JP;
Naruhiro Matsuo, Sakai, JP;
KUBOTA CORPORATION, Osaka, JP;
Abstract
A diesel engineincludes: an injector; a control device which controls an injection timing of fuelinjected from the injector; and exhaust circulating means. The control device controls the injection timing of main injection and pre-injection performed prior to the main injection and executes control such that, by ensuring a premixing period of the pre-injection from start of the pre-injection until ignition of an air-fuel mixture of the fuelinjected by the pre-injection and the air AR, a homogenous and lean premixed air-fuel mixture is generated in the auxiliary combustion chamberby the fuelinjected by the pre-injection and air AR, and the premixing period of the main injection from the start of the main injection until ignition of the air-fuel mixture of the fuelinjected by the main injection and the air AR is ensured.