Patent ID: 8157267
Filing Date: 2012-04-17
Classification: F01D,F16J,Y02T

Abstract:
1. A seal system for sealing an engine to an exhaust member, the seal system comprising: a stationary ring member operably associated with the engine, the ring having: an aft seal ring having: a spring-biased bellows disposed between the first and second seal faces, the bellows being longitudinally compressible and having opposing ends in sealing contact with each corresponding seal face; a flow-directing means attached to the stationary ring member and configured to extend in a direction relatively parallel the inner surface of the stationary ring member for directing the flow of engine exhaust away from the bellow; a first stop located on the first seal face; and a second stop located on the second seal face; wherein the first stop and the second stop prevent transverse movement of the bellow relative to the respective first seal face and the second seal face; and wherein each end of the bellows slidingly engages the corresponding seal face so as to allow longitudinal and transverse movement of the seal faces relative to each other.