FIELD: machine building.
SUBSTANCE: invention relates to aircraft engine building, particularly, to rotors of gas turbine engines. Gas turbine engine rotor support including bearing installed on rotor shaft and support housing, support oil cavity and air pre-oil cavity with oil and air seals, oil jet nozzle, in the housing of which there is an oil supply hole and an oil supply nozzle to the bearing. Guide sleeve and piston with rod are installed in oil jet nozzle housing, butt end of which is configured to shut off oil supply nozzle to bearing. Spring is installed in the cavity between the piston and the guide bushing. Cavity is communicated with the oil cavity of the support by holes.
EFFECT: disclosed support structure improves reliability of operation of the bearing on transient and special modes of its operation and excludes oil ingress into air cavities of the engine.
1 cl, 2 dwg
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