Seal assembly for a gap between outlet portions of adjacent transition ducts in a gas turbine engine

摘要

A seal assembly for sealing a circumferential leakage gap between outlet portions of first and second adjacent transition ducts in a gas turbine engine includes a first seal member affixed to the outlet portion of the first transition duct and a second seal member movable with respect to the first seal member. The second seal member is positionable in a non-sealing first position and a sealing second position. While in the first position, the second seal member is circumferentially spaced from the outlet portion of the second transition duct. While in the second position, the second seal member extends across the leakage gap and creates a seal with the outlet portion of the second transition duct to substantially prevent leakage through the leakage gap.

主权项

1. A seal assembly for sealing a circumferential leakage gap between outlet portions of first and second adjacent transition ducts in a gas turbine engine, the seal assembly comprising:
a first seal member affixed to the outlet portion of the first transition duct; a second seal member associated with the first seal member and movable with respect to the first seal member, the second seal member positionable in at least a non-sealing first position with respect to the outlet portion of the second transition duct and a sealing second position with respect to the outlet portion of the second transition duct; wherein, while in the first position, the second seal member is circumferentially spaced from the outlet portion of the second transition duct; and wherein, while in the second position, the second seal member extends across the leakage gap between the first and second transition ducts and creates a seal with the outlet portion of the second transition duct to substantially prevent leakage through the leakage gap.