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:
Mar. 11, 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 control device for a diesel engine. When the engine is within a particular operating range with a low engine speed and a partial engine load and in a low temperature state where a cylinder temperature at a compression stroke end is lower than a predetermined temperature, a forced induction system sets a forcibly inducting level higher than a predetermined level that is higher than that in a high temperature state where the cylinder temperature is above the predetermined temperature. At least within the particular operating range, an injection control module performs a main injection where a fuel injection starts at or before a top dead center of the compression stroke to cause main combustion mainly including diffusion combustion and performs a pre-stage injection where the fuel injection is performed at least once prior to the main injection to cause pre-stage combustion before the main combustion starts.