Volume 14, Number 4, ppp. 85–89
A description of the types of high speed rotary shaft seals in gas turbine engines and the implications for cabin air quality
Rowton Villa, Rowton, Craven Arms, SY7 0NY, UK
This paper discusses some of the background technology of seal designs that may be used on high speed rotating shafts. It concentrates on types that may be found as bearing seals in gas turbine engines on aircraft. Some of the published research covering seal operation and performance in various applications is described. In particular, the implications of the current understanding of seal performance with reference to aircraft cabin air quality is addressed.
Keywords: circumferential seals, labyrinth, leakage, mechanical seals
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