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:
Sep. 24, 2002
Filed:
Mar. 17, 2000
Ayumu Miyajima, Chiyoda, JP;
Yoshio Okamoto, Minori, JP;
Yuzo Kadomukai, Ishioka, JP;
Shigenori Togashi, Abiko, JP;
Kiyoshi Amo, Chiyoda, JP;
Makoto Yamakado, Tsuchiura, JP;
Tohru Ishikawa, Kitaibaraki, JP;
Hiromasa Kubo, Yokohama, JP;
Hiroshi Fujii, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
At an outlet portion of an injection hole ( ) of a fuel injection valve ( ), through removal of a part (A B) of a wall forming the injection hole ( ), a restriction to a spray flow is eliminated, thereby, a deflection of the spray occurs in which the spray is rich at the side where this restriction is released and is lean at the side that is restricted. Thus, the ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces the amount of unburnt gas components being exhausted.