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:
Dec. 20, 2005
Filed:
Jul. 23, 2004
Masaaki Kubo, Yokohama, JP;
Atsushi Teraji, Yokohama, JP;
Koji Hiraya, Yokohama, JP;
Isamu Hotta, Yokohama, JP;
Masaaki Kubo, Yokohama, JP;
Atsushi Teraji, Yokohama, JP;
Koji Hiraya, Yokohama, JP;
Isamu Hotta, Yokohama, JP;
Nissan Motor Co., Ltd., Yokoama, JP;
Abstract
A control unit is used for controlling a direct fuel injection type internal combustion engine. The control unit controls a fuel injection valve to have a first fuel injection mode wherein a penetration force of an injected fuel sharply increases at an initial stage of a fuel injection and thereafter an increasing rate of the penetration force gradually lowers with passage of time and a second fuel injection mode wherein the penetration force of the injected fuel sharply increases at a middle stage of the fuel injection. The control unit further controls the fuel injection valve in a manner to switch the first and second fuel injection modes in accordance with an operation condition of the engine.