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.

Date of Patent:
Mar. 25, 2014

Filed:

Jun. 28, 2011
Applicants:

Daisuke Shimo, Hiroshima, JP;

Kim Sangkyu, Higashihiroshima, JP;

Kyotaro Nishimoto, Hiroshima, JP;

Shinichi Morinaga, Hiroshima, JP;

Keiji Maruyama, Hiroshima, JP;

Hiroshi Minamoto, Hiroshima, JP;

Masayuki Tetsuno, Hiroshima, JP;

Masahiro Nagoshi, Hiroshima, JP;

Inventors:

Daisuke Shimo, Hiroshima, JP;

Kim Sangkyu, Higashihiroshima, JP;

Kyotaro Nishimoto, Hiroshima, JP;

Shinichi Morinaga, Hiroshima, JP;

Keiji Maruyama, Hiroshima, JP;

Hiroshi Minamoto, Hiroshima, JP;

Masayuki Tetsuno, Hiroshima, JP;

Masahiro Nagoshi, Hiroshima, JP;

Assignee:

Mazda Motor Corporation, Hiroshima, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 3/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A diesel engine is provided, which includes an engine body to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio being set to 15:1 or below, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, and a control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve. The control module performs a main injection where the fuel is injected to cause a main combustion mainly including a diffusion combustion and performs a plurality of pre-stage injections where the fuel is injected prior to the main injection to cause a pre-stage combustion prior to the main combustion. The control module controls the injection mode of the injections to adjust a heat release rate.


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