OIL SYSTEM OF AN AIRCRAFT GAS TURBINE ENGINE Russian patent published in 2022 - IPC F02C7/06 

FIELD: engine building.

SUBSTANCE: invention relates to the field of aircraft engine building, in particular, to the oil system of an aircraft gas turbine engine (GTE). In an oil system containing an oil tank with a horizontal divider dividing the tank into a circulation compartment in the lower part of the tank and a free volume compartment in the upper part of the tank; an oil filter with the body secured in the horizontal divider; an oil supply line with a heat exchanger, the line being in communication with the inner cavity of the oil filter body; a siphon gate, the ascending loop whereof is formed by the oil supply oil and the descending loop is formed by the inner cavity of the oil filter body; a calibrated orifice; a breathing pipe installed in the free volume compartment, according to the present invention, the breathing pipe is equipped with a cooling jacket in communication via a branch pipe with the inner cavity of the oil filter body and with the circulation compartment via tubes, wherein one end of the branch pipe is built into the upper side wall of the oil filter body and the other end is equipped with a calibrated orifice.

EFFECT: lower concentration of oil of the oil-gas mixture in the free volume of the oil tank, more efficient separation of oil and air in the breathing pipe and in the centrifugal breather, lower discharge of oil from the oil-gas mixture into the atmosphere, reduced level of environmental pollution and lower financial expenses for future oil purchases.

2 cl, 3 dwg