FIELD: power engineering.
SUBSTANCE: rotor of turbomachine includes end part with a collar and flange to fit and fasten the main part of said rotor that has predominantly drum design, and fasteners joining two parts of said rotor. At the joint of one rotor's part, between the collar and fasteners an annular groove is made with sealing element installed in it. Above the fasteners at least two radial keys are installed radially between joints of the two rotor parts being fixed in one of these rotor parts.
EFFECT: improvement of reliability of turbine build-up rotor in service; simplification of rotor parts relative centering.
2 dwg
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