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:
Jul. 08, 2014
Filed:
Aug. 10, 2011
Kim Sangkyu, Higashihiroshima, JP;
Daisuke Shimo, Hiroshima, JP;
Kyotaro Nishimoto, Hiroshima, JP;
Yoshie Kakuda, Hiroshima, JP;
Kim Sangkyu, Higashihiroshima, JP;
Daisuke Shimo, Hiroshima, JP;
Kyotaro Nishimoto, Hiroshima, JP;
Yoshie Kakuda, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
This disclosure provides a method of controlling a diesel engine. The method includes adjusting an EGR ratio according to an engine load so that a cylinder Oconcentration decreases gradually to a predetermined load with an increase in the load of the engine, while the Oconcentration increases gradually above the predetermined load, operating the engine in a premix combustion mode where the fuel injection is terminated before a top dead center of a compression stroke in a low load operating range including the predetermined load where the Oconcentration is lowest and, after that, the fuel ignites and combusts, and operating in a diffusion combustion mode where the fuel injection is executed in parallel to the ignition and combustion of the fuel in an operating range where the load is higher than that of the operating range in the premix combustion mode and the Oconcentration is relatively high.