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. 18, 2014
Filed:
Jan. 06, 2012
Yoshihito Yasukawa, Hitachinaka, JP;
Yoshio Okamoto, Omitama, JP;
Takahiro Saito, Isesaki, JP;
Masanori Ishikawa, Tsuchiura, JP;
Eiji Ishii, Hitachinaka, JP;
Nobuaki Kobayashi, Maebashi, JP;
Noriyuki Maekawa, Kashiwa, JP;
Yoshihito Yasukawa, Hitachinaka, JP;
Yoshio Okamoto, Omitama, JP;
Takahiro Saito, Isesaki, JP;
Masanori Ishikawa, Tsuchiura, JP;
Eiji Ishii, Hitachinaka, JP;
Nobuaki Kobayashi, Maebashi, JP;
Noriyuki Maekawa, Kashiwa, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
A fuel injection valve includes: a swirl chamber having an inner peripheral wall formed to be gradually increased in curvature toward a downstream side from an upstream side; a swirl passage, through which a fuel is introduced into the swirl chamber; and a fuel injection port opened to the swirl chamber, wherein the swirl chamber and the swirl passage are formed so that a side wall of the swirl passage connected to a downstream end side of the swirl chamber, or an extension thereof is made not to intersect a downstream side portion of the inner peripheral wall of the swirl chamber, or an extension thereof.