The most widespread are fuel battery systems with hydraulic accumulators. Accumulators are made in the form of separate containers or as a whole with a high-pressure pump or nozzle.
The duration of the valve opening, which determines the cyclic feed, is controlled by the eccentric roller 6. When the center of the eccentric is lowered down, the clearance increases, a later start of the valve opening occurs, which causes a lower cyclic feed. Thus, the decrease in feed is accompanied by a later advance of the injection, which ensures the smooth operation of the diesel engine in all modes of its operation.