| 摘要 |
PCT No. PCT/SE96/00821 Sec. 371 Date Dec. 30, 1997 Sec. 102(e) Date Dec. 30, 1997 PCT Filed Jun. 24, 1996 PCT Pub. No. WO97/02384 PCT Pub. Date Jan. 23, 1997Apparatus for sealing rotary shafts supported by bearings within an airtight casing and extending into a housing maintained at an overpressure is disclosed including a mechanical shaft seal for sealing the shaft as it passes into the housing, a seal mount mounted on the casing for mounting the mechanical shaft seal, the casing including an opening to provide access to the mechanical shaft seal within the casing, and a removable airtight cover for sealing the opening in the casing during operation of the apparatus.
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