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:
Mar. 15, 2016
Filed:
Apr. 01, 2011
Hirotaka Nakai, Hitachinaka, JP;
Motoyuki Abe, Mito, JP;
Toru Ishikawa, Kitaibaraki, JP;
Yasuo Namaizawa, Naka, JP;
Nobuaki Kobayashi, Maebashi, JP;
Kiyoshi Yoshii, Takasaki, JP;
Hitoshi Furudate, Isesaki, JP;
Hirotaka Nakai, Hitachinaka, JP;
Motoyuki Abe, Mito, JP;
Toru Ishikawa, Kitaibaraki, JP;
Yasuo Namaizawa, Naka, JP;
Nobuaki Kobayashi, Maebashi, JP;
Kiyoshi Yoshii, Takasaki, JP;
Hitoshi Furudate, Isesaki, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
An electromagnetic fuel injection valve includes: a valve element which closes a fuel passage by coming into contact with a valve seat and opens the fuel passage by going away from the valve seat; an electromagnet which includes a coil and a magnetic core formed as a drive portion for driving the valve element; a movable element which is held by the valve element in a state where the movable element is displaceable in the direction of a drive force of the valve element relative to the valve element; a first biasing portion for biasing the valve element in the direction opposite to the direction of a drive force generated by the drive portion; a second biasing portion for biasing the movable element in the direction of the drive force with a biasing force smaller than the biasing force generated by the first biasing portion; and a restricting portion for restricting the displacement of the movable element in the direction of the drive force relative to the valve element.