Present as invention relates to a fuel injection pump including a plunger with a fuel shut-off function, the internal space 11 is provided and is a discharge port (not shown) formed on its upper end the lower spill on the outer peripheral surface on both sides in fluid communication with the interior space port 12, the barrel 10, the barrel is disposed in the inner space 11 of the 10 upper and lower lifting and respectively the upper and lower vertical flutes 21 on its outer peripheral surface is placed in direct current, and the vertical respectively provided and the plunger 20 downward from the upper end of the groove 21 inclined with an inclined groove 22, a control sleeve 30 connected to the lower end is provided with a gear teeth 31 on the outer peripheral surface of the plunger 20 and the plunger (20 while sliding through is engaged with the gear teeth 31 governor (not shown) of the control sleeve 30 and includes a rack gear 40 for the forward and reverse axial rotation of the control sleeve 30, ) is in the spill port 12 and the spill port 12 is inclined grooves met By a reaction force caused or going out of the exit is provided with a shaft rotation preventing structure for preventing the rotation axis in the direction of it said plunger (20) increases the fuel supply.
Thus, the governor can be solved the various problems of the over-speed generation of the result to the engine to ensure that you are not affected by the situation plunger reaction force may be unable to control the fuel injection pump but rather rotate in the direction of reducing the fuel shaft to obtain the effect such that.