초록 ▼

An improved atomization fuel injector for an internal combustion engine includes an armature assembly including an injector needle reciprocable between a closed position and an open position; a needle seat for receiving the injector needle in the closed position, the needle seat including a central

An improved atomization fuel injector for an internal combustion engine includes an armature assembly including an injector needle reciprocable between a closed position and an open position; a needle seat for receiving the injector needle in the closed position, the needle seat including a central opening therethrough; an exit orifice disk disposed downstream of the needle seat; and an impinging jet atomizer disposed upstream of the exit orifice disk. A method of improving atomization of fuel in fuel injectors includes providing a fuel injector; adding fuel to the fuel injector; passing the fuel through a central opening in a seat of the fuel injector; separating the fuel into at least two channels; and directing at least two channels of fuel towards one another such that the channels of fuel collide with each other.

대표청구항 ▼

[ What is claimed is:] [1.] A fuel injector for an internal combustion engine, comprised of:an armature assembly including an injector needle reciprocable between a closed position and an open position;a needle seat for receiving the injector needle in the closed position, the needle seat including

[ What is claimed is:] [1.] A fuel injector for an internal combustion engine, comprised of:an armature assembly including an injector needle reciprocable between a closed position and an open position;a needle seat for receiving the injector needle in the closed position, the needle seat including a central opening therethrough wherein a bottom of the needle seat includes a counterbore having a diameter larger than a diameter of the central opening of the needle seat;an exit orifice disk disposed downstream of the needle seat; andan impinging jet atomizer disposed upstream of the exit orifice disk, the impinging jet atomizer including a feed disk defining at least two openings, the feed disk disposed downstream from the counterbore and a nozzle disk disposed downstream of the feed disk, the nozzle disk including at least two openings aligned with the at least two openings in the feed disk, for receiving fuel from the feed disk, and a passageway connecting the opening in the nozzle disk such that at least two separate channels of fuel flow from the openings in the feed disk to the openings in the nozzle disk and through the passageway to impinge on one another.