Coolant recovery type gas turbine

Details Coolant recovery type gas turbine Coolant recovery type gas turbine

2006-04-18

2006-04-18

Rodriguez, William H. (Department: 3746)

Power plants

Combustion products used as motive fluid

Combustion products generator

C060S805000, C060S784000

Reexamination Certificate

active

07028486

ABSTRACT:
An object is to improve the operational reliability of a gas turbine by suppressing thermal stress and thermal deformation acting on the rotor of the gas turbine. The gas turbine has a rotor shaft constructed by arranging, in an axial direction in turn, a plurality of discs each having a plurality of combustion gas-driven moving blades annularly arranged on the peripheral portion and spacers arranged between the discs, and is characterized in that gap portions are formed between a region, on the rotor shaft center portion side, of the above-mentioned discs facing the spacers and spacers adjacent thereto, contact surfaces are formed both of which contact on both a region, on the rotor peripheral side, of the above-mentioned discs facing the spacers and adjacent spacers thereto, and a third flow path leading fluid to the above-mentioned gap portions is provided.

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