VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University210110.18287/2541-7533-2012-0-3-1(34)-99-104UnknownDesign solutions to provide thermal protection of three-shaft turbofan engine turbine support oil cavitiesPetrukhinA. G.<p>Design Engineer</p>petruhin_t@mail.ruBoevA. A.<p>Design Engineer</p>petruhin_t@mail.ruButylkinS. V.<p>Design Engineer</p>petruhin_t@mail.ruJSC «KUZNETSOV», Samara01102012113-1991041002201510022015Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p>The paper presents design approach to providing thermal protection of three-shaft turbofan engine turbine supportoil cavities. The advantages and disadvantages of three-shaft engines are described. Basing upon the performedanalysis, there are offered the potential decisions for providing thermal protection of turbine support oil cavities.</p>Thermal factorthermal protection of turbine supportsoil temperature limitationsthree-shaft engineТеплонапряжённостьтепловая защита опор турбинытемпературные ограничения маселтрёхвальные двигатели