Patent ID: 6082962
Filing Date: 2000-07-04
Classification: F01D

Abstract:
A turbine shaft, comprising:an inflow region for working fluid;turbine blades;a shaft body extending along a principal axis and having a shaft surface;said shaft body having at least two recesses formed therein for receiving at least one of said turbine blades in each of said at least two recesses, said at least two recesses spaced apart axially from one another and from said inflow region, and said at least two recesses including a first recess and another recess downstream of said first recess;said shaft body having a cavity formed therein associated with said inflow region; anda feed line and a discharge line connected to said cavity for conducting a partial stream of the working fluid as cooling fluid, said feed line opening at said shaft surface downstream of said first recess and said discharge line opening at said shaft surface downstream of said other recess.