| 摘要 |
<p>A centrifuge includes a rotor configured to receive sample containers; a drive shaft operatitively coupled to the mo-tor and a motor. The motor includes a housing; a plurality of substantially parallel tins integral with the housing, each fin having a free end spaced from the housing, wherein the free ends of the plurality of fins are disposed in a common cylindrical plane; and a plurality of substantially parallel grooves, each groove disposed between a pair of adjacent tins and having a groove depth de¬fined by a distance between the common cylindrical plane and the housing. Wherein the plurality of grooves includes a first multi¬tude of grooves having a common groove depth and a second multitude of grooves having a groove depth that is not the same as the common groove depth, wherein the first and second multitude of grooves are interleaved.</p> |
