On the top cover of the pump there is a management block (PСU), it has no mechanical communication with an accelerator pedal. The electromagnetic valve of a high pressure (fig. 207
) opens and closed on signals of the block of management ТНВД
. This valve allows to dose out fuel by means of moving плунжерной
steams. Fuel giving to an atomizer begins at the moment of closing of the electromagnetic valve, and stops at the moment of opening.