| 摘要 |
An injection nozzle (4) for an internal combustion engine includes a nozzle body (6) having a first nozzle outlet (12), a second nozzle outlet (18) and a delivery chamber (50) for fuel, an outer valve needle (10) engageable with an outer valve seating (24) to control fuel injection through the first nozzle outlet (12) and an inner valve needle (14) engageable with an inner valve seating (25) to control fuel injection through the second nozzle outlet (18). The outer valve needle (10) is provided with an axial bore (16) within which the inner valve needle (14) is slidable. The injection nozzle (4) further includes a sleeve member (82) coupled to the inner valve needle (14) and a ring member (80) coupled to the outer valve needle (10), wherein the ring member (80) is brought into engagement with the sleeve member (82) when the outer valve needle (10) is moved axially through a distance that is greater than a predetermined distance 'L' so as to cause axial movement of the inner valve needle (14). |
