Development of non-pulsatile tube pump

Tube pumps have been used in many applications for cleanliness and convenience. It is basically constructed by some rollers which rotate and transfer the fluid in the tube by pressing it down from the outside. However, it is known that the flow pulsation occurs when the roller removes from the tube in relation to the tube recovery. Therefore, we developed a new tube pump which consists of pantographs and a grooved cam. The mechanism, the design method, the mechanical analysis and the advantage of the pump are described with some simulation and experimental results.