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. 07, 2019
Filed:
Jun. 17, 2015
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Masashi Sugaya, Hitachinaka, JP;
Kiyotaka Ogura, Hitachinaka, JP;
Takao Miyake, Hitachinaka, JP;
Yoshihito Yasukawa, Tokyo, JP;
Ryo Kusakabe, Hitachinaka, JP;
Atsushi Nakai, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
An object of the present invention is to provide a fuel injection valve which has a structure where failure hardly occurs in a valve member and a peripheral member thereof at the time of press-fitting of a fixed core. The present invention provides a fuel injection valve that includes: a valve memberA; an anchorwhich is relatively displaceable with respect to the valve memberA; a fixed corein which a through-holeA is formed; a gap forming memberwhich forms a gap between an engagement portionB on the valve member side and an engagement portionD on the anchor side; and a biasing springwhich biases the gap forming memberin a valve closing direction. The engagement portionsD andB are provided in both the anchorand the valve memberA so as to be engaged with each other when the anchoris displaced in a valve opening direction with respect to the valve memberA, thereby regulating the displacement of the anchorin the valve opening direction. An outer diameter of the gap forming member, an outer diameter of the biasing spring, and a maximum outer diameter of the valve memberA are set to be smaller than an inner diameter of the through-holeA.