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:
Aug. 09, 2011
Filed:
Sep. 29, 2008
Hiroyuki Yamashita, Hiroshima, JP;
Takeo Yamauchi, Aki-gun, JP;
Masatoshi Seto, Hatsukaichi, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A method of controlling an internal combustion engine and system including the engine is provided. The method may include closing an exhaust valve of a combustion chamber of said engine during a cylinder cycle prior to opening an intake valve of said combustion chamber. The method may include, when a desired engine torque is a predetermined torque or greater, supplying a first pilot fuel into said combustion chamber after said exhaust valve closing and supplying a first main fuel into said combustion chamber after the combustion of said first preliminary fuel during the cylinder cycle. The method may include, when a desired engine torque is less than said predetermined torque, supplying a second pilot fuel into said combustion chamber after said exhaust valve closing during the cylinder cycle and supplying a second main fuel into said combustion chamber after the supplying of said second pilot fuel into said combustion chamber.