Patent ID: 8051662

Claim:
A transition duct assembly for a gas turbine engine comprising: a transition duct having a hollow body and a flange, the body extending between an intake end and an exhaust end, the flange extending from an exterior of the body, the flange having a proximal end and a distal end, the proximal end being attached to the exterior of the body, the distal end of the flange extending toward the intake end; and an impingement sheet having an inlet end and a non-flanged outlet end, the non-flanged outlet end of the impingement sheet being operative to mount to the flange and about the exterior of the transition duct such that the inlet end is positioned adjacent to the intake end of the transition duct and the outlet end is positioned adjacent to the exhaust end of the transition duct, the impingement sheet having cooling holes formed therethrough, the cooling holes being operative to facilitate cooling of the transition duct; wherein the non-flanged outlet end does not extend in a radial direction.