| 摘要 |
PCT No. PCT/DK89/00257 Sec. 371 Date Jun. 2, 1992 Sec. 102(e) Date Jun. 2, 1992 PCT Filed Nov. 2, 1989 PCT Pub. No. WO91/06794 PCT Pub. Date May 16, 1991.A sealing assembly for effecting a rotary seal between a stationary housing (5) and a rotary drum (1) by a number of arcuate sealing segments (8) engaging a radial sealing surface (6) on the housing (5) and a non-radial sealing surface (3) on the rotary drum (1), the segments being urge into sealing engagement with the sealing surfaces by a constantly acting radial force. The non-radial surface (3) tapers conically towards the radial surface (6). With this arrangement, the radially acting force, such as produced by a cable (15), urging the segments (8) radially inwards, also provide the requisite force for urging the segments towards the radial sealing surface (6), as the reaction force on the non-radial or conical surface (3) has a component directed towards the radial sealing surface (6).
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