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:
Jan. 25, 2005
Filed:
Nov. 21, 2001
Motoyuki Abe, Chiyoda, JP;
Yoshio Okamoto, Minori, JP;
Yuzo Kadomukai, Ishioka, JP;
Makoto Yamakado, Tsuchiura, JP;
Ayumu Miyajima, Narita, JP;
Toru Ishikawa, Kitaibaraki, JP;
Yasuo Namaizawa, Kashima, JP;
Motoyuki Abe, Chiyoda, JP;
Yoshio Okamoto, Minori, JP;
Yuzo Kadomukai, Ishioka, JP;
Makoto Yamakado, Tsuchiura, JP;
Ayumu Miyajima, Narita, JP;
Toru Ishikawa, Kitaibaraki, JP;
Yasuo Namaizawa, Kashima, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To produce a fuel spray that is asymmetrical in the flow rate distribution of a sprayed fuel in order to improve the homogeneity of air-fuel mixture density during the air intake stroke injection for homogeneous combustion in an in-cylinder injection engine, the exit portion of the fuel injection hole is provided with the wall surfaces, andthat are parallel to the central axis of the injection hole. Also, the periphery of the injection hole is provided with a plurality of areas in which the flow of the fuel in the radial direction of the injection hole will be restrained, and an plurality of areas in which the flow of the fuel in the radial direction of the injection hole will not be restrained, and a different size is assigned to each non-restraint area.