701 人工心臓に用いる磁性流体封入型動圧軸受に関する研究(関東支部茨城講演会)

概要

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In order to prolong the life of an artificial heart, it has been an important subject to consider the support method of a revolving shaft. The trial that considers hydrodynamic pressure bearing as adoption use is performedinthe rotation support part. However, the leak of the lubricant of hydrodynamic pressure bearing poses a problem. As solution over the leak of a lubricant, the magnetic fluid attracts attention. It is thought that the leak of wear or lubricant can be prevented by using a magnetic fluid also not only as lubricant but as a sealant. The purpose of this research is examining applying a magnetic fluid as the lubricant and the sealant of dynamic-pressure bearing for artificial hearts. In the experiment, the distance in which dynamic-pressure bearing was rotated and the object floated was measured. In the experiment that floats with a hydrodynamic pressure, distilled water, iso paraffin, and silicone oil were used for lubricant. It was confirmed that the distance, which floated in order with a high consistency is acquired from an experiment result.
2005-09-08