| 摘要 |
<P>PROBLEM TO BE SOLVED: To circulate internal liquid by a circulating flow path to effectively stir without complicating a structure in a liquid container containing a liquid having a sedimentation constituent. <P>SOLUTION: An action of pressure-feeding a liquid toward an upper part of a liquid-containing part through an exit flow path by decreasing a volume of a pump chamber after sucking the liquid into the pump chamber from an under part of the liquid-containing part through an introduction flow path by increasing a volume of the pump chamber is repeated for circulating the liquid to the upper part from the under part of the liquid-containing part. The introduction flow path is equipped with a bottom face-extending part extending along a bottom face of the liquid-containing part to provide take-in openings of the liquid not only at a tip end part of the introduction flow path but also at a plurality of points arranged along an extending direction of the bottom face-extending part. Thus, a liquid concentrated in a sedimentation constituent concentration can be taken in from a broad area of the bottom part of the liquid-containing part to eliminate a bias in sedimentation constituent concentration over the bottom part of the liquid-containing part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
