| 摘要 |
The present disclosure includes sealing systems comprising a secondary seal (50) with one or more of a knife edge seal (52) and a discourager (54). The secondary seal (50) may act to isolate an interface (48) between an inner and outer shaft (18, 16) and a bearing compartment (12). The inner and outer shafts (18, 16) may be low pressure turbine and high pressure compressor shafts, respectively. |
