ねじり式ゴムチューブポンプの開発 : 流体工学,流体機械

概要

論文の詳細を見る
We developed the twist-type rubber-tube pump which discharges its inner liquid according to the twist angle of the tube one side of which is fixed and the other is connected to the motor axis. The rubber's volume does not change when it is stretched. And the tube is fixed on both sides. Discharge volume ΔV of the pump is therefore approximated by the formula ΔV=[1-L_0{L_0^2+r_e^2(θ-α)^2}^<1/2]S_0L_0, where S_0 is cross-section area of the tube, L_0 is length,θis twist angle, r_e is typical radius, and α is delay angle of discharge. We designed and made a prototype (tube inner radius : φ4 mm, outer radius : φ8 mm, length : 50 mm). The prototype can discharge 50 μL of liquid at a twist angle of 270°and has a long life, that is the discharge pattern changes little after 2 million repetitions.
一般社団法人日本機械学会の論文
2001-07-25