GAS-TURBINE ENGINE SUPPORT UNIT Russian patent published in 2007 - IPC F02C7/06 

FIELD: power and transport engineering.

SUBSTANCE: invention relates to bearing support lubrication systems of gas-turbine engines and it can be used to fed oil to bearing, for instance, interrotor bearings of high-temperature aircraft gas-turbine engines. According to invention gas-turbine engine support unit contains bearing with roller, inner race and cage, support unit being made to supply oil to bearing. At least channel is made additionally in inner race of bearing to supply oil to path of bearing inner race, ratio of channel is 20°≤α≤90° where α is angle between axis of channel and axis of rotation of bearing. Ratio of B/L=1.1-5.0 is true for bearing of support unit where B is width of cage and L is width of roller. Oil can be fed to path of inner race of bearing in support unit of gas-turbine engine through grooves made in bearing inner holder by grinding wheel.

EFFECT: improved reliability of bearing and, consequently, engine itself by improving conditions of lubrication of bearings and its cooling, increased service life of engine.

2 cl, 2 dwg