Patent ID: 6378503
Filing Date: 2002-04-30
Classification: F02M

Abstract:
A fuel injector comprising a nozzle body defining a bore within which an outer valve member is slidable, the outer valve member being engageable with a first seating to control fuel injection from a first outlet opening provided in the nozzle body, the outer valve member being provided with a through bore within which an inner valve member is slidable, the inner valve member being engageable with a second seating to control fuel injection through a second outlet opening provided in the nozzle body, the fuel injector further comprising first and second control chambers for fuel, whereby, in use, movement of the inner valve member away from its seating is independently controlled by controlling the pressure in the second control chamber and movement of the outer valve member is independently controlled by controlling the pressure in the first control chamber so as to permit fuel delivery from a selected outlet opening.