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.

Date of Patent:
Oct. 26, 2004

Filed:

Jul. 03, 2003
Applicant:
Inventors:

Kazuyoshi Kishibata, Numazu, JP;

Yuichi Kitagawa, Numazu, JP;

Hiroyasu Sato, Numazu, JP;

Assignee:

Kokusan Denki Co., Ltd., Shizuoka-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 4/100 ; F02D 4/300 ; F02P 5/00 ;
U.S. Cl.
CPC ...
F02D 4/100 ; F02D 4/300 ; F02P 5/00 ;
Abstract

A fuel injection and ignition system for an internal combustion engine adapted to apply a power source voltage to an injector, an ignition circuit, an electronic control unit and a fuel pump from a single voltage regulating power source circuit having as a power source a generator driven by the internal combustion engine through a power line and to control a drive current of the fuel pump in a pulse width modulating mode (PWM mode) so as to keep the power line voltage at a value higher than a reference voltage, which is set slightly higher than a voltage corresponding to one higher among the minimum operation voltages for the injector and that for the ignition circuit, in the course where the internal combustion engine starts.


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