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:
Sep. 20, 2011
Filed:
May. 23, 2007
Tadao Tsuchiya, Miyagi, JP;
Manabu Shouji, Miyagi, JP;
Tsukasa Naganuma, Tochigi, JP;
Yasuharu Hourai, Tochigi, JP;
Kenichi Omori, Saitama, JP;
Kazuhito Kakimoto, Saitama, JP;
Hidetaka Ozawa, Saitama, JP;
Tadao Tsuchiya, Miyagi, JP;
Manabu Shouji, Miyagi, JP;
Tsukasa Naganuma, Tochigi, JP;
Yasuharu Hourai, Tochigi, JP;
Kenichi Omori, Saitama, JP;
Kazuhito Kakimoto, Saitama, JP;
Hidetaka Ozawa, Saitama, JP;
Keihin Corporation, Tokyo, JP;
Abstract
To provide a fuel injection device for controlling a fuel injection valve including a solenoid and a magnetostrictive element to generate a drive force for driving the fuel injection valve, the fuel injection device including: a solenoid power source () for driving the solenoid, a solenoid drive circuit () adapted to control the electrification to the solenoid by the solenoid power source (), a plurality of magnetostrictive element driving power sources () for driving the magnetostrictive element, and a magnetostrictive element drive circuit () adapted to control the electrification to a magnetostrictive coil of the magnetostrictive element by the magnetostrictive element driving power sources. Since the plurality of the magnetostrictive element driving power sources can be respectively used when performing a valve-opening operation and when performing a valve-closing operation of the fuel injection valve of the fuel injection device, the opening/closing operation of the fuel injection valve of the fuel injection device can be properly performed.