Patent ID: 6425368
Filing Date: 2002-07-30
Classification: F02M

Abstract:
A fuel injector of the outwardly opening type comprising a nozzle body provided with a first bore, a valve needle slidable within the bore and engageable with a seating to control the supply of fuel from the bore, first and second control chambers for receiving fuel under pressure and a control valve arrangement for controlling the fuel pressure within the first and second control chambers, the valve needle being moveable in response to a change in fuel pressure in at least one of the first and second control chambers wherein the control valve arrangement includes a single control valve member having first and second valve seatings, whereby movement of the control valve member away from the first valve seating only causes movement of the valve needle into a first fuel injecting position and movement of the control valve member away from both the first and second valve seatings causes movement of the valve needle into a second fuel injecting position.