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.:

US 6787931 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 07, 2004

Filed:

Jul. 16, 2003
Applicant:
Inventors:

Masanori Nakagawa, Numazu, JP;

Yutaka Inaba, Numazu, JP;

Shuichi Muramatsu, Numazu, JP;

Hideaki Suzuki, Numazu, JP;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 9/08 ; H02P 1/00 ;
U.S. Cl.
CPC ...
H02P 9/08 ; H02P 1/00 ;
Abstract

A starter generator for an internal combustion engine including: a rotating electric machine having a magnet rotor mounted to a crankshaft of the internal combustion engine, and a stator with a three-phase first armature coil and a three-phase second armature coil; a first battery and a second battery connected in series or in parallel; a first driver circuit provided between the first armature coil and the first battery, and a second driver circuit provided between the second armature coil and the second battery; and an inverter that converts voltages of the first battery and the second battery into an AC voltage, wherein drive currents are supplied to the first armature coil and the second armature coil from the first battery and the second battery through switch circuits in the first driver and the second driver, when the engine is started, and induced voltages of the first armature coil and the second armature coil are supplied to the batteries through rectifier circuits in the first driver and the second driver to charge the batteries, after the engine is started.


Find Patent Forward Citations

Nakagawa, Masanori. (2004). Starter generator for internal combustion engine (U.S. Patent No. 6787931). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6787931

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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