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. 19, 2011
Filed:
Nov. 27, 2006
Kazunori Kitagawa, Tokyo, JP;
Yoshihiko Onishi, Tokyo, JP;
Kazunori Kitagawa, Tokyo, JP;
Yoshihiko Onishi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A fuel injection valve includes a valve seat () that has a valve seat portion () with a conical space defined therein and tapered toward an injection hole (), a needle () that has a valve portion () formed with a curved surface for abutment with the valve seat portion () and a column-shaped sliding portion () located upstream of the valve seat portion (), and a swirler () that holds the sliding portion () in a slidable manner, wherein fuel to be injected from the injection hole () is adjusted by opening and closing a gap between the valve portion () and said valve seat (), and assuming that a radius of curvature in an axial direction of the valve portion () at a point at which the valve portion () and the valve seat portion () are in abutment with each other is R and an outer diameter of the sliding portion () is D, R is greater than D/2.