| 摘要 |
PURPOSE:To resolve the deviation in injection amount due to the dimensional deviation of machined parts by making the stroke of timing plunger adjustable that is disposed in the delivery side cylinder of a plunger pump. CONSTITUTION:A timing plunger 38 is slidably disposed in the delivery side cylinder of a plunger pump 8, and the communication is made to a pump chamber 13 via an orifice 39, annular groove 40 and orifice 41. A return spring 42 is attached to the other end of the timing plunger 38, and, by changing the position of a stopper 44 that limits the movement of the timing plunger 38, the stroke of the timing plunger 38 can be adjusted. In this manner, the deviation in injection amount due to the deviation in the dimension of machined parts or in assembly dimension can be resolved. |
