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:
Jan. 31, 2006
Filed:
Mar. 27, 2003
Motoshi Kataoka, Aki-gun, JP;
Hiroshi Hayashibara, Aki-gun, JP;
Yasuyuki Terazawa, Aki-gun, JP;
Tomoaki Saito, Aki-gun, JP;
Motoshi Kataoka, Aki-gun, JP;
Hiroshi Hayashibara, Aki-gun, JP;
Yasuyuki Terazawa, Aki-gun, JP;
Tomoaki Saito, Aki-gun, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
To suppress deposition of fuel injected at an early timing on a wall surface for preventing the degradation in fuel efficiency and increase in the amount of harmful components in an exhaust gas, in a direct-injection diesel engine which controls the injector to cause a combustion configuration dominated by the compressive ignition of the premixture while the engine is in the premixed combustion region defined on a low load side. When fuel is injected at an early timing to form the premixture, at least one of the pulse width to be inputted into the injector and the fuel pressure is or are adjusted according to the change in the injection timing, and corrected according to the intake air temperature or the intake pressure. If an allowable pulse width is insufficient to inject fuel in the amount corresponding to a target torque, fuel is injected in a divided manner.