OIL SYSTEM OF GAS TURBINE ENGINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; gas turbine engines. SUBSTANCE: proposed oil system of gas turbine engine contains oil tank which is connected through delivery oil pump, fine oil filter and heat exchanger with oil spaces of engine supports. Oil spaces are connected with oil tank through corresponding oil pumping out pumps and air separator. Oil tank is connected by oil tank breathing pipeline with breathing pipelines of oil spaces to form combined pipeline. Angle between axis of oil tank breathing pipeline and axis of oil space breathing pipeline ay inlet into combined breathing pipeline is less than 90^o. Other oil space is connected by breathing pipeline with combined breathing pipeline to form second combined pipeline. Angle between axes of breathing pipeline of said space and combined pipeline at inlet into second combined breathing pipeline, is less than 90^o also. Outlet section of combined pipeline in this case, the last in flow before breather, is arranged at a distance of L≥0,1d, from its inlet section, where d is diameter of combined pipeline, last in direction of flow. EFFECT: improved quality and reliability of oil system of gas turbine engine. 2 dwg