| 摘要 |
PURPOSE:To have controllability of the fuel injection ratio in any way according to the operating conditions by coupling an accumulating piston oil-hydraulically with a control piston and by adjusting the fuel injection pressure through adjustment of the motion of control piston. CONSTITUTION:If a control piston 30 is rotated under control of a control gear 60 by means of slide control of a rack rod 70 in the direction from that side of illustration facing you to the other side, back of the illustration, the relative distance between a control hole 50 and control surface 30c in the axial direction is changed because this control surface 30c is a slope, and thus the amount of motion of control piston 30 until the control surface 30c blocks the control hole 50 will vary. Because the control piston 30 is coupled with an accumulating piston 10 oil-hydraulically, change in the amount of motion of the control piston 30 causes a one in the amount of motion of this accumulating piston 10. Accordingly the amount of accumulation can be controlled by sliding the abovementioned rack rod 70. |
