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:
May. 24, 2016
Filed:
Jun. 19, 2012
Ryo Kusakabe, Hitachinaka, JP;
Motoyuki Abe, Mito, JP;
Yoshihito Yasukawa, Hitachinaka, JP;
Noriyuki Maekawa, Kashiwa, JP;
Takuya Mayuzumi, Hitachinaka, JP;
Tohru Ishikawa, Kitaibaraki, JP;
Ryo Kusakabe, Hitachinaka, JP;
Motoyuki Abe, Mito, JP;
Yoshihito Yasukawa, Hitachinaka, JP;
Noriyuki Maekawa, Kashiwa, JP;
Takuya Mayuzumi, Hitachinaka, JP;
Tohru Ishikawa, Kitaibaraki, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
A method of controlling a fuel injection device that can control a small amount of injection is provided. A fuel injection device for use in an internal combustion engine, includes: a valve body that can open and close a fuel passage, a needle that transfers a force with the valve body, and executes valve opening/closing operation, and an electromagnet that includes a coil and a magnetic core provided as a driver for driving the needle, and a cylindrical nozzle holder disposed on an outer periphery of the magnetic core and the needle, in which a current is supplied to the coil to exert a magnetic attractive force between the magnetic core and the needle to open the valve body.