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:
Nov. 18, 2014
Filed:
Dec. 02, 2011
Yoshie Kakuda, Hiroshima, JP;
Takeshi Yokoo, Hiroshima, JP;
Daisuke Shimo, Hroshima, JP;
Kyotaro Nishimoto, Hiroshima, JP;
Kim Sangkyu, Higashihiroshima, JP;
Yoshie Kakuda, Hiroshima, JP;
Takeshi Yokoo, Hiroshima, JP;
Daisuke Shimo, Hroshima, JP;
Kyotaro Nishimoto, Hiroshima, JP;
Kim Sangkyu, Higashihiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
The disclosure provides a diesel engine, which includes an engine body mounted in a vehicle and having a cylinder to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio ε of the cylinder being set within a range of 12:1 to 15:1, and an EGR system for allowing a part of burned gas to exist inside of the engine body cylinder when the engine body is at least in a particular operating state where an engine load and an engine speed are relatively low. The EGR system includes an EGR passage at least partially formed inside the engine body, and having a predetermined or shorter passage, an EGR control valve provided in a course of the EGR passage and for adjusting a flow rate of the burned gas inside the EGR passage, and a controller for controlling an opening of the EGR control valve.