Non-metallic brush seals for gas turbine bearings
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Bhate, Nitin and Thermos, Anthony C. and Akşit, Mahmut Faruk and Demiroğlu, Mehmet and Kizil, Huseyin (2004) Non-metallic brush seals for gas turbine bearings. In: ASME Turbo Expo 2004:Power for Land, Sea, and Air, Vienna, Austria
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 reduce
leakage 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.
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