COMBUSTOR SLIDING JOINT

摘要

A sliding joint in a gas turbine engine between a large exit duct of a combustor and a turbine vane assembly having a leading edge lug. The sliding joint has an elongated flexible arm extending between a first end joined to the outer surface of the large entry duct, and an opposed free second end disposed radially inward of the outer surface of the large entry duct. A spacer is joined to the second end of the arm and projects radially away therefrom toward the outer surface of the large entry duct. The spacer is spaced apart from the outer surface and defines a gap therebetween. The spacer, the arm, and the sliding joint axially displace with respect to the lug upon thermal expansion of the large entry duct.

主权项

1. A sliding joint between a large exit duct of a combustor of a gas turbine engine and a turbine vane assembly having a leading edge lug, the large exit duct having a distal flange defining an inner surface and outer surface, the sliding joint comprising:
an elongated flexible arm extending between a first end joined to the outer surface of the distal flange and an opposed free second end disposed radially inward of the distal flange, the flexible arm having a first surface and a second surface spaced radially inward from the first surface; and a spacer joined to the first surface of the second end of the flexible arm and projecting radially away therefrom toward the distal flange, the spacer spaced apart from the distal flange and defining a gap therebetween, the spacer axially displacing with respect to the lug upon thermal expansion of the large entry duct.