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. 12, 2016
Filed:
May. 09, 2011
Shinichi Morinaga, Hiroshima, JP;
Daisuke Shimo, Hiroshima, JP;
Keiji Maruyama, Hiroshima, JP;
Hiroshi Minamoto, Hiroshima, JP;
Naotoshi Shirahashi, Hiroshima, JP;
Daisuke Fukuda, Higashihiroshima, JP;
Shinichi Morinaga, Hiroshima, JP;
Daisuke Shimo, Hiroshima, JP;
Keiji Maruyama, Hiroshima, JP;
Hiroshi Minamoto, Hiroshima, JP;
Naotoshi Shirahashi, Hiroshima, JP;
Daisuke Fukuda, Higashihiroshima, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
A geometric compression ratio in an engine main bodyis set to 15 or less. Injection control means (ECU) performs a main injection of injecting fuel near a compression top dead center, and a preceding injection prior to the main injection at a specific region of predetermined load within an operating region on a relatively low-speed side. The injection control means performs, as the preceding injection, a pilot injection of performing injection at a timing such that at least part of a fuel spray reaches outside a cavityon a top face of a piston, and a pre-injection of injecting fuel at a predetermined timing after the pilot injection, to suppress thereby ignition of the fuel injected by the pilot injection and shorten an ignition delay of the fuel injected by the main injection.