揺動ピストン形油回転真空ポンプの省エネルギー化

抄録

  A rotary plunger vacuum pump has high displacement efficiency and robust structure. The pumps are used in hard process of general industry. The demand of saving energy in industry is increasing these days. Rotary plunger vacuum pumps are required to suppress the energy as well. Therefore, the approach of the energy reduction for the pumps has begun. The pump's power consumption could be explained by two factors. One is the mechanical loss and the other is the compression work. We developed a rotary plunger vacuum pump which implement low frictional structure. The low frictional structure allowed low viscosity vacuum oil. With efficient driving by controlling rotation speed, this pump reduced energy by 30% compared to the conventional pump. Beyond that we introduced the way of energy saving by reduction of the compression work.