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:
Apr. 22, 2014
Filed:
Feb. 07, 2012
Shuji Oba, Kariya, JP;
Kouhei Iwai, Hiroshima, JP;
Kazuhiro Nagatsu, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Noriyuki Ota, Hiroshima, JP;
Naoya Watanabe, Higashihiroshima, JP;
Hiroyuki Kurita, Hiroshima, JP;
Tatsuya Fujikawa, Aki-gun, JP;
Kenji Uchida, Higashihiroshima, JP;
Daisuke Asaji, Hiroshima, JP;
Takaaki Nagano, Higashihiroshima, JP;
Shuji Oba, Kariya, JP;
Kouhei Iwai, Hiroshima, JP;
Kazuhiro Nagatsu, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Noriyuki Ota, Hiroshima, JP;
Naoya Watanabe, Higashihiroshima, JP;
Hiroyuki Kurita, Hiroshima, JP;
Tatsuya Fujikawa, Aki-gun, JP;
Kenji Uchida, Higashihiroshima, JP;
Daisuke Asaji, Hiroshima, JP;
Takaaki Nagano, Higashihiroshima, 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 controls 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 valve to perform a fuel injection at least at a timing that is more retarded than an injection timing of a fuel within the low engine load range and is within 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 within the retard period and further after the fuel injection.