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. 09, 2003
Filed:
Oct. 24, 2001
Koji Kitamura, Miyagi, JP;
Akira Arioka, Miyagi, JP;
Keihin Corporation, Tokyo, JP;
Abstract
A fuel injection valve includes a valve seat member having a valve bore, and an injector plate coupled to an outer end face of the valve seat member. A fuel diffusion chamber is defined between the valve seat member and the injector plate. The injector plate is provided with a plurality of fuel injection bores which are parted on a plane including an axis of the valve bore into primary and secondary groups for injecting fuel toward primary and secondary intake ports. When a direction of arrangement of the primary and secondary intake ports is represented by X, and a direction perpendicular to the direction of arrangement is represented by Y, the fuel injection bores of the primary and secondary groups are formed so that they are inclined to a side opposite from the axis of the valve bore only in a direction X toward a downstream side.