| 摘要 |
A fuel injector, especially adapted for diesel engines, is disclosed in which injection timing and fuel metering may be controlled from cycle to cycle of engine operation. Means are provided to control the timing of the injection independently of the metering of the fuel quantity for the injection cycle. The injector comprises an injector pump and timing valve means, including a solenoid valve and a shuttle valve, which controls the energization of the pump to execute an injection stroke. It also comprises metering valve means, including a solenoid valve and a shuttle valve, which controls the return stroke of the injector pump to meter the fuel quantity to be injected on the injection cycle. |
