A non-metallic brush seal has been developed as an oil seal for use in turbomachinary. Traditionally labyrinth-type seals with larger clearances have been used in such applications. Labyrinth seals have higher leakage rates and can undergo excessive wear in case of rotor instability. Brush seals reduceudleakage by up to an order of magnitude and provide compliance against rotor instabilities. Brush seals are compact and are much less prone to degradation associated with oil sealing. This paper describes the benefits and development of the nonmetallic brush seals for oil sealing application. ud
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机译：非金属刷式密封已被开发为用于涡轮机的油封。传统上，具有较大间隙的迷宫式密封件已用于此类应用。迷宫式密封具有更高的泄漏率，并且在转子不稳定的情况下会遭受过度磨损。电刷密封件最多可减少渗漏，并提供针对转子不稳定性的顺应性。刷式密封结构紧凑，不易因油封而退化。本文介绍了用于油封的非金属刷式密封的好处和发展。 ud
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