A drive mechanism, which may include a stepper motor, intermittently rotates the fuel distributor shaft so that the shaft discharge port dwells in registration with one of the fuel distributing passages at the time {HEAD ~ a pressurized pulse} of fuel is discharged through {TAIL ~ the shaft discharge port} 
is discharged through
A drive mechanism , which may include a stepper motor , intermittently rotates the fuel distributor shaft so that the shaft discharge port dwells in registration with one of the fuel distributing passages at the time { HEAD ~ a pressurized pulse } of fuel is discharged through { TAIL ~ the shaft discharge port }
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