TWO-SHAFT GAS TURBINE ENGINE WITH INTERSHAFT BEARING Russian patent published in 2002 - IPC

FIELD: converted aircraft gas turbine engines. SUBSTANCE: two-shaft gas turbine engine with intershaft bearing has pipeline to feed oil to intershaft bearing, pipeline being connected with inner tube telescopically connected with outer tube to form hermetically sealed air spaces. Oil space of intershaft bearing is in communication with air space adjoining intershaft bearing. EFFECT: improved efficiency and reliability of engine in operation by decreasing consumption of oil for lubricating intershaft bearing, prevention of formation of stress concentrators on outer shaft and penetration of oil into air spaces of turbine. 2 dwg