OIL SYSTEM OF AIRCRAFT GAS-TURBINE ENGINE Russian patent published in 2006 - IPC F02C7/06 

FIELD: aircraft industry; aircraft engines.

SUBSTANCE: invention relates to oil system of aircraft gas-turbine engine for maneuverable aircraft. It provides slowing down of reduction of oil level in oil tank of aircraft gas-turbine engine of maneuverable aircraft at inverted flight and negative-g flight. At inverted flight of aircraft or negative-g flight, oil in oil spaces 1, 2, 3 under action of gravity passes from oil collectors 4, 5 and 6 into upper part of spaces, and oil from oil collector 5 gets into oil collector 12 and further on into oil intake 13. Oil in oil tank 10 will shift, together with input of inertia oil intake 19, also into upper part. Delivery of oil into oil spaces 1, 2, and 3 of rotor bearing supports will be continued under these condition as oil consumed from oil tank 10 will be replenished by part of oil getting into oil space 2 which is about 50% of entire oil consumption of gas-turbine engine.

EFFECT: provision of slowing down of reduction of oil level in oil tank of aircraft engine.

2 cl, 1 dwg