UNIT OF INTER-SHAFT SUPPORT OF GAS-TURBINE ENGINE Russian patent published in 1995 - IPC

FIELD: power and transport engineering. SUBSTANCE: mounted on shaft 1 of high-pressure compressor is intermediate shaft 3 of high-pressure compressor drive which is tightened up by means of nut 4. Then bearing 6 is mounted which is assembled beforehand with hollow cylindrical bush 10 and nut 12. Outer race 5 of bearing 6 is tightened up with nut 8 through stack of parts 7 after which high-pressure turbine with shaft 2 is mounted. Shaft 14 of low-pressure turbine rotor 12 and bush 10 are assembled by transition fit. Splines of parts 10 and 12 are engaged with splines of shaft 14 of low-pressure turbine rotor 16. EFFECT: enhanced reliability. 1 dwg