Combustor transition duct assembly with inner liner

摘要

A transition duct assembly for a turbine engine includes a transition duct with an inner liner removably received therein. The duct is hollow with an inner peripheral surface and an outer peripheral surface. The duct can have an inlet end and an outlet end. The inner peripheral surface of the duct can be convergent along a majority of the length of the duct when moving from the inlet end to the outlet end thereof. The liner is hollow body with an inner peripheral surface and an outer peripheral surface. The outer peripheral surface of the liner can be correspondingly convergent to the inner peripheral surface of the duct. The inner peripheral surface of the liner can define an internal flow passage through the assembly. Such a construction permits the use of different materials for the liner and the duct and can allow the liner to be readily removed and replaced.

主权项

1. A transition duct assembly for a turbine engine comprising:
a transition duct having a hollow body with an inner peripheral surface and an outer peripheral surface, the transition duct having an inlet and an outlet, the transition duct having an inlet end and an outlet end, the inner peripheral surface of the transition duct being convergent along a majority of the transition duct when moving from the inlet end to the outlet end thereof; an inner liner removably received within the transition duct, the inner liner having a generally hollow body with an inner peripheral surface and an outer peripheral surface, the outer peripheral surface of the inner liner being correspondingly convergent to the inner peripheral surface of the transition duct, and the inner peripheral surface defining an internal flow passage through the assembly; and wherein the inner liner is made of a plurality of separate segments including an upstream liner segment and a downstream liner segment, wherein the upstream liner segment is inserted from the inlet end of the transition duct and wherein the downstream liner segment is inserted from the outlet end of the transition duct.