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:
Jun. 30, 1998
Filed:
Jul. 11, 1996
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A fuel injection valve with improved fuel atomization which has a valve body, a needle valve accommodated in the valve body for opening and closing a fuel path at a sealing portion, and a metering member provided at a front end of the valve body and having a plurality of nozzle holes for metering a fuel and determining the fuel-injecting direction. The fuel injection valve comprises an inner wall of the valve body located downstream of the sealing portion which is shaped to be gradually contiguous to an upstream side surface of the metering member, and an intermediate surface of the needle valve for connecting the sealing portion and the most-downstream side bottom surface of the needle valve with each other forming the fuel path sloped inward in the downstream direction in association with the inner wall for introducing the fuel into the nozzle holes formed in the metering member when the needle valve is in an open state, wherein the intermediate surface of the needle valve being shaped in such a manner that a virtual intersecting line of a virtual linear extension of the intermediate surface and the upstream side surface of the metering member is positioned outside of a virtual circle circumscribing the upstream side openings of the nozzle holes formed in the metering member when the needle valve is in an open state.