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.:

US 9322375 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 26, 2016

Filed:

Mar. 06, 2014
Applicant:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;

Inventors:

Yoshio Okamoto, Tokyo, JP;

Kazuki Yoshimura, Tokyo, JP;

Noriyuki Maekawa, Tokyo, JP;

Nobuaki Kobayashi, Hitachinaka, JP;

Eiji Ishii, Tokyo, JP;

Takahiro Saito, Hitachinaka, JP;

Assignee:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 63/00 (2006.01); F02M 61/16 (2006.01); F02M 51/06 (2006.01);
U.S. Cl.
CPC ...
F02M 63/0078 (2013.01); F02M 61/162 (2013.01); F02M 51/061 (2013.01);
Abstract

A fuel injection valve realizing improved circumferential uniformity of swirling fuel is provided. The fuel injection valve includes swirling chambers each having an inner peripheral wall whose curvature is gradually larger from upstream to downstream, paths for swirling each of which, having a fuel flow-in region formed along a valve axis direction, guides fuel to the associated one of the swirling chambers, and fuel injection orifices open into the associated swirling chambers, respectively. In the fuel injection valve, a curved portion is formed on the bottom, in a sectional view along the valve axis direction, of an inlet portion of each of the paths for swirling so as to change the fuel flow in each of the paths for swirling.


Find Patent Forward Citations

Okamoto, Yoshio. (2016). Fuel injection valve (U.S. Patent No. 9322375). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9322375

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