FLUID TRANSPORT DEVICE AND FLUID TRANSPORT METHOD

PROBLEM TO BE SOLVED: To provide a fluid transport device capable of controlling a precise total emission amount.SOLUTION: A fluid transport device 1 has: a tube 50; a cam 20 having protrusion parts 22-25; and fingers 40-46 arranged along the tube 50 between the tube 50 and the cam 20. The fluid tra...

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Bibliographic Details
Main Author KATASE MAKOTO
Format Patent
LanguageEnglish
Japanese
Published 06.08.2015
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a fluid transport device capable of controlling a precise total emission amount.SOLUTION: A fluid transport device 1 has: a tube 50; a cam 20 having protrusion parts 22-25; and fingers 40-46 arranged along the tube 50 between the tube 50 and the cam 20. The fluid transport device rotates the cam 20, sequentially presses the fingers 40-46 by the protrusion parts 22-25 in a fluid flowing direction, and repeats pressure-closing and opening of the tube 50 to emit the fluid. The device has: a driving rotor 120 for giving a rotation force to the cam 20; a detection part for detecting a rotation position of the cam 20; and a control part 140 for calculating a cam rotation angle to a cumulative emission amount using a first approximate expression of an emission region H in which the cumulative emission amount increases almost in proportion to a rotation angle of the cam 20 and a second approximate expression of a constant region J in which the cumulative emission amount rarely increases or decreases even when the cam 20 rotates, and driving a driving rotor 120 until it reaches the rotation position of the cam 20 corresponding to a designated cumulative emission amount. 【課題】正確な総吐出量を制御できる流体輸送装置を実現する。【解決手段】流体輸送装置１は、チューブ５０と、突起部２２〜２５を有するカム２０と、チューブ５０とカム２０の間にチューブ５０に沿って配設されるフィンガー４０〜４６と、を有し、カム２０を回転させて、突起部２２〜２５によりフィンガー４０〜４６を流体の流動方向に順次押動し、チューブ５０の圧閉と開放を繰り返して流体を吐出する流体輸送装置であって、カム２０に回転力を与える駆動ローター１２０と、カム２０の回転位置を検出する検出部と、累積吐出量がカム２０の回転角度にほぼ比例して増加する吐出領域Ｈの第１近似式と、カム２０が回転しても累積吐出量がほとんど増減しない一定領域Ｊの第２近似式と、を用いて、累積吐出量に対するカム回転角度を演算し、指定累積吐出量に相当するカム２０の回転位置に達するまで駆動ローター１２０を駆動させる制御部１４０と、を有する。【選択図】図６
Bibliography:Application Number: JP20150088163