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:
Apr. 17, 2001
Filed:
Jul. 31, 2000
Yoshio Okamoto, Minori-machi, JP;
Yzo Kadomukai, Ishioka, JP;
Yoshiyuki Tanabe, Hitachinaka, JP;
Yasunaga Hamada, Hitachinaka, JP;
Other;
Abstract
A laminated structure fuel swirl element is employed, in which a strong swirl force flow is imparted to the fuel at a remote side against an injection hole and on the other hand, at a near side of the fuel injection hole, a weak swirl force is imparted to the fuel. A complex solid cone spray can be obtained, such a spray has a superior a dispersion characteristic by attracting small diameter droplets which are generated at an outer peripheral portion of the spray through a spray which is generated at a vicinity of a central portion of the spray and has a large velocity. In the spray characteristics in an electromagnetic system fuel injector of a direct injection gasoline engine, a complex solid cone spray can be obtained, as a result a good ignitability of the engine can be obtained by a spray having a small spreading angle by making strong an inertia force and a discharge amount of the unburned gas components of the combustion can be reduced by a spray having a short reaching distance and a large spreading angle by making weak the inertia force.