METHOD OF OIL SUPPLY TO INTER-ROTOR BERING OF ROTOR SUPPORT OF GAS TURBINE ENGINE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC F02C7/06 F16C19/22 F16C33/66 

FIELD: machine building.

SUBSTANCE: group of inventions relates to a rotary gas turbine engines and can be used to supply fuel to the inter-rotor bearings to lubricate and cool them, as well as to reduce contact stress on the bodies of rolling bearings. Method of supplying the oil to the rotor bearing supports of inter-rotor turbomachine includes setting means (7), directed to the internal oil feed hollow shaft (5) and the rotor shaft through the oil supply (5) and the nozzle (8) into the oil supply means to the inter-rotor bearing. Means (7) for supplying through its nozzle (8) of the oil is rotated with the shaft (5), the oil flows through its outlets, fed perpendicularly to the bearing axis on the reflecting surface, mounted on the outer shaft (6) of the engine oil-trap ring, from which the reflected oil flow is supplied to the bearing in a direction parallel to the bearing axis. The nozzles (8) are deployed in the direction of rotation of the rings (1, 2) bearing a circumferential velocity (V) of the oil feed to the oil-trap ring is in the range from minimum to maximum values and selected from the defined ratios. Also, there is a claimed device for supplying oil which contains mounted on a shaft (5) means (7) directed feed oil outlet nozzles (8) are capable of communication with the engine oil system and masloulavlivayuschy visor (9) intended to specify the direction of flow oil. The visor (9) is fixed to the outer shaft (6), mounted on the outer ring (1) of the bearing, and is formed as an annular sleeve, which hole has a conical shape and is placed at the end face of the bearing so that the mouth of the cone opening is directed toward the bearing, wherein the nozzles (8) re directed towards the conical surface of the oil-trap ring and have adjustable orifice.

EFFECT: invention enhances the life of the bearings of the rotors of the gas turbine engine due to optimal organization of supplying them with oil, providing effective lubrication and cooling of the bearing, as well as a decrease in the contact stresses between the rolling elements of the bearing and the outer clip.

2 cl, 3 dwg