POWER GAS TURBINE Russian patent published in 2010 - IPC F01D25/16 F01D25/12 F16C32/04 

FIELD: engines and pumps.

SUBSTANCE: power gas turbine with magnetic bearing comprises a shaft, electromagnetic bearings and safety rolling bearings. Power turbine shaft consists of outer and inner shafts with air intershaft space arranged there between. Inner shaft front extension supports turbine disks, while rear extension catties useful power transfer flexible coupling. Outer shaft external surface supports rotor elements of electromagnetic bearings, while safety rolling bearings are fitted on outer shaft front and rear extensions. Outer shaft is circumferentially spline-locked relative to inner shaft, the splines being arranged on rear extension. It is radially locked relative to inner shaft by radial ribs arranged in aforesaid intershaft air space and by thrust collars located in said space and by flexible coupling flange. Said intershaft air space inlet communicates, via outer shaft extension orifices, with cold air feed stationary system, while its outlet communicates, via gas turbine post channels, with gas turbine outlet gas duct.

EFFECT: higher reliability and ease of servicing.

5 dwg