摘要:
A method for varying the flow rate of fuel in a distributor-type electronic control fuel-injection pump. A single solenoid valve is used to control the timing of initiating and terminating fuel delivery. A cam is operated under four different modes, a low idle or a low speed/low load zone, a middle load zone, a high load zone, and a governing or high idle zone in that order as the cam is rotated. At the governing or high idle zone, the solenoid valve is closed before the cam is lifted and is opened to control fuel delivery when it is terminated.