| 摘要 |
<p>1. A sealing arrangement for stern Tubes of ships, comprising a slide ring sealing consisting of a slide ring (9) and a counter-ring (10), and a additional sealing element (7), a chamber (8) being formed between the slide ring sealing (9, 10) and the sealing element, which chamber is filled with a liquid medium via a feed channel (12), characterized in that the liquid medium consists of water possibly with additives and that a pressure higher than the external water pressure can be set up in the chamber (8, 108) via a pressure generator (13) connected thereto, in such a way that the additional sealing element (7, 107) is lubricated, and kept free from dirt, through exudation of liquid from the chamber (8, 108) over the entire periphery of the sealing element (7, 107), and that a zero-pressure leakage space (17, 117) having an exit channel (19, 119) is located behing the slide ring sealing (9, 10, 109, 110), on the side facing away from the chamber (8, 108), and a part of the liquid passes through the slide ring sealing (9, 10, 109, 110) between the chamber (8, 108) and the leakage space (17, 117) so as to effect lubrication.</p> |
