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:
Nov. 11, 2014
Filed:
Aug. 16, 2010
Shunsuke Aritomi, Mito, JP;
Kenichiro Tokuo, Hitachinaka, JP;
Masayuki Suganami, Iwaki, JP;
Akihiro Munakata, Hitachinaka, JP;
Satoshi Usui, Hitachinaka, JP;
Shunsuke Aritomi, Mito, JP;
Kenichiro Tokuo, Hitachinaka, JP;
Masayuki Suganami, Iwaki, JP;
Akihiro Munakata, Hitachinaka, JP;
Satoshi Usui, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
High-response and high-power electromagnetically driven flow rate control valve with flange portion forming an attracting surface on an anchor, a first peripheral surface portion having a diameter smaller than the flange portion, and a cylindrical non-magnetic area opposing an outer peripheral surface of the flange portion with a third clearance interposed therebetween are provided, and a first fluid trap portion communicating with the back pressure chamber via the third clearance is provided. When the diameter of the flange portion is enlarged in order to enlarge the cross-sectional area of the attracting surface, fuel that is displaced by the anchor is increased, but is partly absorbed in the first fluid trap portion, so that the fuel passing through the fuel channel does not increase in comparison with fuel before the diameter of the flange portion is enlarged. Accordingly, the cross-sectional area of the attracting surface may be enlarged.