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. 09, 2021
Filed:
Apr. 19, 2019
Mazda Motor Corporation, Hiroshima, JP;
Kota Matsumoto, Aki-gun, JP;
Tomonori Urushihara, Aki-gun, JP;
Keiji Maruyama, Aki-gun, JP;
Masanari Sueoka, Aki-gun, JP;
Ryohei Ono, Aki-gun, JP;
Yuji Harada, Aki-gun, JP;
Toru Miyamoto, Aki-gun, JP;
Atsushi Inoue, Aki-gun, JP;
Tatsuhiro Tokunaga, Aki-gun, JP;
Takuya Ohura, Aki-gun, JP;
Yusuke Kawai, Aki-gun, JP;
Tomohiro Nishida, Aki-gun, JP;
Keita Arai, Aki-gun, JP;
Yodai Yamaguchi, Aki-gun, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A control apparatus for a compression-ignition type engine is applied to an engine capable of carrying out partial compression ignition combustion in which an air-fuel mixture is subjected to CI combustion by self-ignition. The control apparatus creates a lean A/F environment where an air-fuel ratio as a ratio between air and fuel in a cylinder exceeds 20 and is lower than 35, or a lean G/F environment where a gas air-fuel ratio as a ratio between entire gas and the fuel in the cylinder exceeds 18 and is lower than 50 and the air-fuel ratio substantially matches a stoichiometric air-fuel ratio. Prior to planned timing of the CI combustion, in the lean A/F environment or the lean G/F environment, the control apparatus causes an ignition plug to generate a spark and to generate a high-temperature portion.