VORRICHTUNG ZUM LEITEN EINES THERMOELEMENTES INNERHALB EINER TURBINENLEITSCHAUFEL

摘要

A guide tube (46) is fixed adjacent opposite ends in outer and inner covers (20,24) of a nozzle stage segment (10). The guide tube is serpentine in shape between the outer and inner covers and extends through a nozzle vane (16). An insert (42) is disposed in the nozzle vane and has apertures (70,72) to accommodate serpentine portions of the guide tube. Cooling steam is also supplied through chambers (56, 58) of the insert on opposite sides of a central insert chamber (64) containing the guide tube. The opposite ends of the guide tube are fixed to sleeves (70, 72), in turn fixed to the outer and inner covers.