Patent ID: 6412712
Filing Date: 2002-07-02
Classification: F02M

Abstract:
A fuel injector comprising a valve needle which is slidable within a blind bore provided in a body and which is engageable with a seating to control the supply of fuel to an injector outlet opening having an inlet end to which fuel is delivered and an outlet end from which fuel is delivered, an adjustable sleeve member which is arranged within the blind bore, the sleeve member including a first opening having a first outlet end which is directly co-operable with the inlet end of the injector outlet opening, a combination of the first opening and the injector outlet opening defining a restriction to fuel being delivered by said injector, said adjustable sleeve member being moveable to move said first opening thereof relative to said outlet opening to vary the restriction to fuel flow formed by said outlet opening and said first opening and, hence, the rate at which fuel is delivered by said injector.