Integrated strut and turbine vane nozzle arrangement

摘要

An integrated strut and turbine vane nozzle (ISV) arrangement (28) includes a single-piece interturbine duct (ITD) (29) having inner and outer duct walls (32, 30) with an array of circumferentially spaced apart struts (34), and a plurality of vane nozzle segments (40) removably attached to a plurality of receivers (60, 64) in downstream end sections of the ITD inner and outer duct walls. Vane airfoils (46) of the vane nozzle segments in combination with trailing edge portions (38) of the struts form a vane nozzle integrated with the ITD (29).