After feed conclusion, the plunger revolved to it presses in the position which in the trough and the distributor barrel the oil hole is interlinked, leaves between the oil hole and delivery valve's assignment oil lead presses the trough and the ring groove and the pump body cavity connection through the plunger on, causes between various cylinders this section of assignment oil lead the pressure before spraying starts maintains consistent, thus improves between the dispensing pump various cylinders' feed uniformity.
     VE the dispensing pump uses the change feed completion point relative cam the position (i.e. on control sleeve's control plane and plunger unloads hole relative position), changes the feed effective travel . And shoulders the regulating control sleeve's position by the velometer according to the rotational speed, its control plane toward right, the unloading hole reveals the phase is later, the feed conclusion was later, the feed effective travel was bigger, the fuel feed were more. Otherwise, fuel feed reduction.
     3. stops the oil solenoid valve
     As shown in Figure 12, stops the oil solenoid valve's electric circuit by the ignition lock control:
     When the ST - - diesel engine starts, the solenoid valve supplies power directly by the automobile accumulator cell, the voltage is high, overcomes the spring strength to open rapidly.
     When ON - - diesel engine normal work, the solenoid valve has electrified. In order to reduce the solenoid valve to give off heat, lengthens solenoid valve's service life, connects into a voltage dropping resistor, causes the electromagnetism valve voltage to reduce to can the maintaining valve core hold is opening the position the minimum value.
     The OFF - - solenoid valve power failure, the valve core takes a seat under the spring strength's function, shuts off the oil channel, the diesel engine engine off.