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 7798433 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 21, 2010

Filed:

Mar. 15, 2006
Applicants:

Yoshihiko Onishi, Tokyo, JP;

Shigenobu Tochiyama, Tokyo, JP;

Kazunori Kitagawa, Tokyo, JP;

Inventors:

Yoshihiko Onishi, Tokyo, JP;

Shigenobu Tochiyama, Tokyo, JP;

Kazunori Kitagawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 59/00 (2006.01); F02M 51/00 (2006.01); B05B 1/30 (2006.01); B05B 1/00 (2006.01); B21K 21/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel injection valve device is capable of thinning a nozzle hole plate and improving fuel spray characteristics by a construction for reducing stress concentration that occurs at the weld part of the nozzle hole plate. The fuel injection valve device includes: a nozzle having a fuel passage inside and in which a valve seat is formed at an end; a needle valve for opening and closing the fuel passage by coming in contact with and separating from the valve seat; and an nozzle hole plate that is disposed at the tip of the nozzle and injects a fuel in the fuel passage at the time of opening the needle valve. The nozzle hole plate and the nozzle are fixed by welding in a state of forming an even gap between them.


Find Patent Forward Citations

Onishi, Yoshihiko. (2010). Fuel injection valve device (U.S. Patent No. 7798433). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7798433

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