Patent ID: 8974179
Filing Date: 2015-03-10
Classification: F01D,F16J

Abstract:
1. A turbine system, comprising: a transition duct comprising an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis, the outlet of the transition duct offset from the inlet along the longitudinal axis and the tangential axis, the transition duct further comprising an interface member for interfacing with a turbine section, the interface member comprising a channel, the channel comprising a radially inner first wall, a radially outer second wall opposing the first wall, and a third wall joining the first wall and the second wall; and a convolution seal contacting the interface member and at least partially disposed in the channel to provide a seal between the interface member and the turbine section, the convolution seal comprising a first outer leg and a second outer leg, and wherein the first outer leg and the second outer leg are angled outwardly from each other in an operating condition from an intersection of the first outer leg and an intersection of the second outer leg, wherein one of the first outer leg and the second outer leg contacts the third wall and the other of the first outer leg and the second outer leg contacts the turbine section, wherein the intersection of the first outer leg and the intersection of the second outer leg are entirely within the channel and contact the first wall, and wherein ends of the first outer leg and the second outer leg are facing and spaced apart from the second wall.