| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic driving stirrer, which is constituted such that a fluid as a heat medium in a vessel can be stirred efficiently by a mixing blade excellent in a mixing performance, that a state wherein an autorotation center line of the mixing blade coincides surely with that of an external driving magnet can be held and that the fluid in the vessel can be stirred smoothly. SOLUTION: This magnetic driving stirrer has the mixing blade 13, which is provided with a plurality of arm portions 14a and 14b extending radially outward at regular intervals mutually in a circumferential direction centering the autorotation axis, scooping swash plates 15a and 15b, which scoop the fluid as the heat medium in the vessel, push away it radially outward, and at the same time, in order to make a spiral whirlpool pivot, are formed radially slightly at the outward looking up to a predetermined height position being slantwise rearward from the front lower edge when viewing in a regular rotating direction of each arm portion 14a and 14b, and driven magnets 17a and 17b installed in a line symmetry relating to the autorotation axis at a position on the mixing blade 13. COPYRIGHT: (C)2005,JPO&NCIPI
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