| 摘要 |
PROBLEM TO BE SOLVED: To pump a small amount by a large number of cylinders and plunger members. SOLUTION: A pumping device has a plurality of cylinders 12 with a nozzle 12A at a tip, a frame body 14 for aligning the position of each nozzle 12A of each cylinder 12 and at the same time supporting each cylinder 12 while making parallel the center lines of each cylinder 12, a plurality of plunger members 16 which are inserted into each cylinder 12 individually and in two ways, and a reciprocating operation energizing means 2 for reciprocating the plunger members 16 simultaneously in the same direction. The reciprocating operation energizing means 2 is constituted of a screw mechanism 20 for driving the plunger members 16 and a driving means 30 for energizing rotary force to the screw mechanism 20. |
