Patent Number: 6,293,089

Title: Gas turbine

Abstract: A gas turbine generally comprises a compressor, a combustor and a turbinebody operatively connected to the compressor through a rotation shaft, andthe turbine body is composed of a plurality of rotors formed with turbine.discs and movable blades which are arranged in plural stages along anaxial direction of the turbine body, in which a rear shaft is connected toa downstream side of a final stage disc of the turbine discs so as toextend rearward from the final stage turbine disc and supported by meansof a bearing. The rear shaft is formed with a cooling medium supplypassage for supplying a cooling medium to the turbine disc and a coolingmedium recovery passage for recovering the cooling medium from the turbinedisc, and a further cooling medium passage is formed between the rearshaft and either one of the cooling medium supply passage and the coolingmedium recovery passage.

Inventors: Sasaki; Takashi (Yokohama, JP)

Assignee:

International Classification:

Expiration Date: 09/25/2013