Turbine rotor, cooling method of turbine blades of the rotor and gas turbine with the rotor

Abstract

A turbine rotor for a gas turbine includes first and second wheels each having turbine blades fixed to a peripheral portion thereof, and a spacer arranged so as to be sandwiched between the first and second wheels. A partitioning member is provided between the spacer and at least one of the first and second wheels. Coolant paths in which coolant for cooling the turbine blades flows, are provided inside the turbine blades. A cavity formed by the partitioning member and the spacer is provided in a recovery course through which the coolant passed through the coolant paths is exhausted from the turbine blades.

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