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:
Aug. 17, 2021
Filed:
Oct. 19, 2020
Mazda Motor Corporation, Hiroshima, JP;
Naoya Ito, Aki-gun, JP;
Takashi Kaminaga, Aki-gun, JP;
Kenji Uchida, Aki-gun, JP;
Tatsuya Fujikawa, Aki-gun, JP;
Takashi Youso, Aki-gun, JP;
Masahisa Yamakawa, Aki-gun, JP;
Mitsuhiro Muto, Aki-gun, JP;
Takuma Fujii, Aki-gun, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A control device for a compression self-ignition engine includes a fuel injection system and an injection controller. While the engine is operated by CI combustion under a given first condition, a first injection is carried out in which fuel is injected at a first timing in a compression stroke and at which the fuel goes toward a part radially outward of a cavity formed in a crown surface of a piston, and a second injection is suspended. While the engine is operated by the CI combustion under a second condition in which a temperature inside a combustion chamber at a close timing of an intake valve becomes lower than the first condition, at least the second injection is carried out in which the fuel is injected at a second timing later than the first timing in the compression stroke and at which the fuel goes toward the cavity.