| 摘要 |
A sealing arrangement 48 for sealing a leakage gap between relatively moveable parts in a flow path between a region of high fluid pressure and a region of low fluid pressure (D and E respectively in Fig. 2), comprises a sealing member 58 having an upstream surface 60, a downstream surface 62, a radially outer surface 64 and a radially inner surface 66, the sealing member 58 being in communication with a housing 54 via resilient means 56. The resilient means 56 is fixedly joined to the upstream surface 60 of the sealing member 58 such that, during operation, both the radial force induced on the sealing member 58 by fluid flowing axially into and circumferentially over the radially inner surface 66 and the axial force induced on the sealing member 58 because of a pressure difference across the sealing member 58 is resisted by the resilient means 56. Sealing means 72 may also be provided between the downstream surface 62 and te housing 54.
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