FIELD: mechanical engineering; gas turbines. SUBSTANCE: proposed device can be used in nozzle segments consisting of several vanes. Each nozzle segment is connected by its upper part with outer ring containing cooling air and is installed by base of inner ring. Each vane of nozzle segment is furnished with at least one tube fitted in channel located inside vanes and communicating the space where cooling air circulates with high-pressure disk and low-pressure disk. Outer ring is connected with movable ring making it possible to compensate for difference in heat expansion appearing between turbine housing and outer ring. EFFECT: provision of simple, reliable and compact device for mounting stator stage nozzle and for cooling rotor disks. 12 cl, 2 dwg
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Authors
Dates
2004-02-27—Published
2000-05-30—Filed