| 摘要 |
<P>PROBLEM TO BE SOLVED: To maintain decompression in a casing even if a seal failure occurs in a seal packing. <P>SOLUTION: The seal packing 20 is fitted to a main rotating shaft 5 disposed in the external side of the casing 1 so that decompression state can be kept and a sealed space part 50 is provided to cover the sealing packing 20. <P>COPYRIGHT: (C)2012,JPO&INPIT |
