抄録
Tube pumps have been used in many applications due to the cleanliness and the convenience. It is basically constructed by some rollers which transfers the fluid in the tube by pressing down it from the outside. However, it is known that the flow pulsation occurs when the outflow side roller removes from the tube. Then, we developed a new tube pump which has non-circular gears. The gears realize the move of the roller to achieve the non-pulsation of the pump. We show an experimental result and explain that the gear based on a ratio of angular velocities of rollers achieves the non-pulsation.