The total stroke L of the reciprocating motion of the plunger of the khp series gear pump product is constant and is determined by the lift of the CAM. The amount of oil supply for each cycle of the plunger depends on the oil supply stroke, which is not affected by the CAM The axis control is variable. The start time of fuel supply does not change with the variation of the fuel supply stroke. Rotating the plunger can change the end time of fuel supply, thereby altering the...