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:
Jan. 03, 2017
Filed:
Jan. 24, 2014
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Kiyotaka Ogura, Hitachinaka, JP;
Hideharu Ehara, Hitachinaka, JP;
Motoyuki Abe, Tokyo, JP;
Eiji Ishii, Tokyo, JP;
Masanori Mifuji, Hitachinaka, JP;
Atsushi Takaoku, Hitachinaka, JP;
Takao Miyake, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
An object of the invention is to provide a fuel injection valve that applies a swirl to an upstream side of a seat section to shorten spray penetration. When flows into injection hole entries are indicated by arrowstoand injection hole exit directions are indicated by arrowsto, an angle α defined by the inflow directionand the exit directionof an injection holecan be increased. In a method for applying the twisted angle α, a side grooveon an outer peripheral side of a guide memberis set to be accompanied with a twist with respect to an axis O. Furthermore, a flow passage area of the side grooveis set smaller than a flow passage area on an upstream side of the guide memberand is also set larger than a flow passage area of a seat sectionB that is constructed by a gap between a valve bodyand an orifice cup