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:
Feb. 15, 2005
Filed:
May. 12, 2003
Noriaki Sumisha, Miyagi, JP;
Ryohei Kimura, Miyagi, JP;
Kazuhiko Sato, Miyagi, JP;
Shunsuke Inagaki, Miyagi, JP;
Kenichi Sato, Miyagi, JP;
Noriaki Sumisha, Miyagi, JP;
Ryohei Kimura, Miyagi, JP;
Kazuhiko Sato, Miyagi, JP;
Shunsuke Inagaki, Miyagi, JP;
Kenichi Sato, Miyagi, JP;
Keihin Corporation, Tokyo, JP;
Abstract
A fuel injection valve includes a valve seat member, and an injector plate which is coupled to a front end face of the valve seat member and has a plurality of fuel injection orifices disposed about an axis of the valve seat member to communicate with a valve seat. Swirling means for swirling a fuel injected from each of the fuel injection orifices is provided in at least one of the valve seat member and the injector plate. The plurality of fuel injection orifices are disposed so that liquid membrane portions of adjoining hollow conical fuel spray forms formed by the fuel injected from the fuel injection orifices collide with one another. Thus, the atomization of the injected fuel can be further promoted, and a coalesced fuel spray form having a fuel particle density higher in a central zone and lower in an outer peripheral zone can be formed.