Patent ID: 6513733
Filing Date: 2003-02-04
Classification: F02M

Abstract:
A fuel injector comprising:a nozzle body having a first bore defining first and second seatings; an outer valve member, slidable within the first bore and engageable with the first seating to control fuel flow from a first outlet opening located downstream of the first seating, the outer valve member being provided with a through bore, said through bore extending an axial length of the outer valve member and defining a step therein; an inner valve member, slidable within the through bore and biased against and engageable with the second seating to control fuel flow from a second outlet opening, the inner valve member further including an enlarged region spaced a predefined distance from the step such that when the outer valve member axially translates away from the first seating a distance than the predefined distance, the step engages the enlarged region and unseats the inner valve member from the second seat; and a member disposed in the through bore and extending axially with a first end operatively cooperating with the inner valve member and a second end cooperating with an inner surface of the through bore.