Patent ID: 7219847
Filing Date: 2007-05-22
Classification: B29C,F02M

Abstract:
1. A fuel injector comprising: a polymeric housing having a passageway extending between an inlet opening and an outlet opening along a longitudinal axis; a pole piece disposed in the passageway, the pole piece having a through opening; a filter assembly having a portion disposed in the through opening of the pole piece; a coil assembly disposed in the polymeric housing to surround the pole piece; a spring member disposed partly in the pole piece and including a spring portion contiguous with the portion of the filter assembly; an armature assembly disposed in the passageway in a first position confronting the pole piece and in a second position contiguous to an end face of the pole piece, the armature assembly having a closure member reciprocable along the longitudinal axis; a metering assembly having a seat secured to a polymeric support member, the seat having a first surface contiguous to the closure member in one position of the closure member and a second surface spaced apart from the first surface; and a metering disc secured to the second surface of the seat such that the metering disc is at the outermost end of the fuel injector.