| 摘要 |
PURPOSE:To eliminate pulsation by connecting a variable chamber and a feeding chamber airtightly and extending and contracting a flexible capacity variable body whose rear edge part is connected with the top edge of a rod by a motor. CONSTITUTION:When a motor 12 is revolved, a working rod 23 is advanced through a ball screw shaft 18, and a variable capacity body 31 is pressed and contracted, and the pressure in a feeding chamber 26 increases, and the fluid in the chamber 26 is pressurized, and discharged from a discharge port 28. When the motor 12 is revolved reversely. The working rod 23 retreats, and the variable capacity body 31 is extended, and the inside of the feeding chamber 26 is decompressed, and the fluid is inhaled from a suction port 27. Therefore, the fluid can be transported continuously free from pulsation.
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