Patent ID: 8511972
Filing Date: 2013-08-20
Classification: F01D

Abstract:
1. A seal member in a channel between a transition seal structure associated with a transition duct and a vane seal structure associated with a vane structure in a first row vane assembly of a gas turbine engine, said seal member comprising: a first spring member extending in a circumferential direction within the channel, said first spring member comprising a first end portion and a second end portion spaced apart from said first end portion in the circumferential direction, said first end portion affixed to a first one of the transition seal structure and the vane seal structure, said second end portion free to move circumferentially within the channel with respect to the transition seal structure and the vane seal structure; and a sheathing assembly comprising a main body portion and a plate portion, said main body portion disposed about at least a substantial portion of said first spring member and being affixed to said second end portion of said first spring member, said plate portion extending from said main body portion toward a second one of the transition seal structure and the vane seal structure different than said first one of the transition seal structure and the vane seal structure, wherein said first spring member provides a bias on said sheathing assembly such that said plate portion engages said second one of the transition seal structure and the vane seal structure to limit leakage through the channel between the transition seal structure and the vane seal structure.