| 摘要 |
<p>A fuel injector comprising a nozzle body (10; 10a, 10b) provided with first and second outlet openings (15, 21) for fuel, a valve needle (12) slidable within a valve needle bore (11; 65a) defined in the nozzle body (10; 10a, 10b), the valve needle bore (11; 65a) being shaped to define a seating (11b; 72) with which the valve needle (12) is engageable to control fuel flow to a chamber (14), the valve needle (12) being provided with a flow passage (17) communicating with the chamber (14), movement of the valve needle (12) away from the seating (11b; 72) into a first fuel injecting position permitting fuel delivery through the first outlet opening (15) and whereby movement of the valve needle (12) away from the seating (11b; 72) into a second fuel injecting position causes fuel in the chamber (14) to flow through the flow passage (17) for delivery through the second outlet opening (21). The nozzle body (10) may include an upper nozzle body part (10a) provided with a through bore (65a) and a lower nozzle body part (10b) provided with a blind bore (65b), the lower nozzle body part (10b) being received in the through bore (65a) to close an open end thereof. <IMAGE></p> |
