| 摘要 |
A shaft seal that is in sliding contact with the outer surface of the shaft of an open type compressor or a fluid device driven by an external power source and seals the inside of the compressor or of the fluid device against the outside. At least a sliding section of the shaft seal, which sliding section is in sliding contact with the outer surface of the shaft, is made from a material into which a substance having a melting point in the range of 150 - 300°C is added and uniformly dispersed. The shaft seal has increased resistance to heat and wear, has high durability, and is particularly suitable for compressors using a carbon dioxide refrigerant which are driven in high-temperature, high-pressure conditions. |
