| 摘要 |
<p>A hydraulic seal arrangement (210) for a rotating machine, particularly a gas turbine engine, comprises a hydraulic seal and a hydraulic trap (250). When the machine is shut down, oil is retained in the hydraulic trap. When the machine is restarted, the oil from the hydraulic trap (250) is available to re-make the hydraulic seal, thereby reducing or avoiding the leakage that typically occurs in such seal arrangements until the flow of oil through the seal arrangement (210) is reestablished.</p> |
