METHOD OF BREATHING GAS TURBINE ENGINE ROTOR SUPPORT OIL CAVITY AND OIL RING VACUUM PUMP FOR IMPLEMENTATION THEREOF Russian patent published in 2020 - IPC F04C7/00 F02C7/06 

FIELD: engine building.

SUBSTANCE: invention is intended for ventilating oil cavities of rotor supports with circulating lubrication system. Task of improving the reliability of the oil system of a gas-turbine engine is solved by a method of venting the oil cavity of the support of the rotor of a gas-turbine engine with a circulating lubrication system and an oil ring vacuum pump 1 for realizing this method. During operation of oil ring vacuum pump 1 through window of suction of oil-and-air mixture located in end cover, formed oil-and-air mixture by means of communications 4 is removed from oil cavity of support 2, oil cavity of box of drives of units 3 and from oil tank 7. In oil-ring vacuum pump 1 under the action of rotating blades from oil-and-air mixture oil is separated, which under increased pressure through the window located in zone of minimum radial gap between blades of impeller and pump housing, to communication 6 is taken to oil tank 7. Air cleaned from oil under increased pressure through discharge opening in end cover via communication 5 is discharged into atmosphere.

EFFECT: invention can be used in gas turbine engines (GTE) for various purposes.

2 cl, 4 dwg