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. 11, 2001
Filed:
Sep. 26, 2000
Maurizio Boaro, Castenaso, IT;
Marcello Cristiani, Imola, IT;
Massimo Neretti, San Lazzaro Di Savena, IT;
Magneti Marelli S.p.A., Milan, IT;
Abstract
Fuel injector, comprising a main tubular body, provided with at least one through pipe which ends in a spray nozzle which can spray the fuel present inside the through pipe, and a shutter unit, which is mobile axially inside the through pipe, from and towards a position of closure, in which the shutter unit itself abuts a sealing surface provided on the spray nozzle, and seals it in a fluid-tight manner; the shutter unit being made of a cup-type body, the base of which is defined by a sealing disc made of flexible material, on which there are provided an annular sealing projection and an annular stop projection, which is co-axial relative to the former; the annular stop projection having a height which is lower than the annular sealing projection, such as to abut the sealing surface of the spray nozzle only temporarily, subject to resilient deformation of the sealing disc itself.