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AssigneeElasis Sistema Ricerca Fiat Nel Mezzogiorno Societa Consortile per Azioni
InventorsMario Ricco, Giovanni Bruni
Estimating the term…
The valve comprises a shutter for the drain conduit of the control chamber f the injector; and an electromagnet having a fixed core with a seat for a coil which is energized to operate the armature controlling the shutter. The core presents two coaxial annular pole pieces, the outer one of which is shorter than the inner one and fitted with a ring of magnetic material partially closing the seat and enabling a substantial reduction in the diameter of the armature. The smaller diameter of the armature enables it to be fitted to the body of the injector by means of a larger-diameter threaded ring nut. The armature, together with a return spring, is fitted to a plate having a sleeve for guiding the stem; and the assembly is then fitted to the body independently of the electromagnet by screwing the ring nut inside a seat in the body.
In a fuel injector including an injector body (6), a nozzle (9), and shutter means (8, 28) closing said nozzle (9);
A fuel injector electromagnetic metering valve comprising an electromagnet (42) with a fixed magnetic circuit (46, 76) including a magnetic core (46), and with a coil (47) energizable so as to displace an armature (43, 69) for controlling the metering function;
Dependencies are inferred from the claim text.