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:
Oct. 13, 2015
Filed:
Mar. 28, 2012
Takahiro Saito, Isesaki, JP;
Nobuaki Kobayashi, Maebashi, JP;
Hiroshi Ohno, Honjyo, JP;
Atsushi Nakai, Isesaki, JP;
Yoshio Okamoto, Omitama, JP;
Takahiro Saito, Isesaki, JP;
Nobuaki Kobayashi, Maebashi, JP;
Hiroshi Ohno, Honjyo, JP;
Atsushi Nakai, Isesaki, JP;
Yoshio Okamoto, Omitama, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
A fuel injection valve includes a valve element movably disposed to a valve seat member having a valve seat and formed with an opening located at a downstream side thereof. A swirl imparting chamber is formed to impart a swirl force to fuel within the swirl imparting chamber by turning fuel. An injection hole is opened to the bottom of swirl imparting chamber to inject fuel to outside. Additionally, a communication passage is formed to connect the swirl imparting chamber with the opening of the valve seat member. In this fuel injection valve, the swirl imparting chamber and the communication passage are formed to satisfy the following equation:0.15≦<0.5