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:
Feb. 18, 2014
Filed:
Feb. 07, 2012
Kouhei Iwai, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Noriyuki Ota, Hiroshima, JP;
Kazuhiro Nagatsu, Hiroshima, JP;
Takashi Youso, Hiroshima, JP;
Kazutoyo Watanabe, Higashihiroshima, JP;
Hiroyuki Kurita, Hiroshima, JP;
Naoya Watanabe, Higashihiroshima, JP;
Takaaki Nagano, Higashihiroshima, JP;
Shuji Oba, Kariya, JP;
Kouhei Iwai, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Noriyuki Ota, Hiroshima, JP;
Kazuhiro Nagatsu, Hiroshima, JP;
Takashi Youso, Hiroshima, JP;
Kazutoyo Watanabe, Higashihiroshima, JP;
Hiroyuki Kurita, Hiroshima, JP;
Naoya Watanabe, Higashihiroshima, JP;
Takaaki Nagano, Higashihiroshima, JP;
Shuji Oba, Kariya, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
The disclosure provides a control device of a spark-ignition gasoline engine. When an operating state of an engine body is within a low engine speed range, a controller operates a fuel pressure variable mechanism so that a fuel pressure is higher within a high engine load range compared to a low engine load range, the controller operates, within the high engine load range, a fuel injection mechanism to perform at least a fuel injection into the cylinder by a cylinder internal injection valve at a timing during a retard period from a late stage of a compression stroke to an early stage of an expansion stroke, and the controller operates, within the high engine load range, an ignition plug to ignite at a timing during the retard period and after the fuel injection.