Patent ID: 7063272

Claim:
An injection nozzle ( 10 ) for use in a fuel injector for an internal combustion engine, the injection nozzle comprising: an inner valve needle ( 26 ) which is engageable with an inner valve seating ( 24 , 58 ) to control fuel delivery through one or more first nozzle outlets ( 14 ), an outer valve ( 28 ) which is engageable with an outer valve seating ( 24 , 70 ) to control fuel delivery through one or more second nozzle outlets ( 16 ), wherein the outer valve ( 28 ) is provided with a valve bore ( 36 ) within which at least a part ( 26 a ) of the inner valve needle ( 26 ) is received, and a coupling arrangement ( 46 , 48 ) for coupling movement of the inner valve needle ( 26 ) to the outer valve ( 28 ) in circumstances in which the inner valve needle ( 26 ) is moved away from the inner valve seating ( 24 , 58 ) through an amount exceeding a predetermined threshold amount (D), thereby to cause the outer valve ( 28 ) to lift away from the outer valve seating ( 24 , 70 ) also.