ENGINE LUBRICATION SYSTEM OF A GAS TURBINE PLANT WITH UTILIZATION OF USED ENGINE OIL Russian patent published in 2019 - IPC F02C7/06 

FIELD: gas turbine building.

SUBSTANCE: invention relates to gas turbine construction, namely, to lubrication systems of gas-turbine engines. Engine lubrication system of the gas turbine plant is equipped with a three-way valve for supply of oil into the discharge line or in the line for pumping oil for its recycling, oil pressure sensor, oil cooling radiator, oil filter, used oil tank, waste oil supply line to combustion chamber, and dispenser of level of waste oil supply to combustion chamber. System is also equipped with pipeline, which balances pressure between tank of used engine oil and combustion chamber, in which there is a mixture of waste oil and standard fuel for their combined combustion. Oil tank is connected to delivery pump, with three-way valve, which in operating mode is connected via oil supply line with oil filter, oil cooler, pressure sensor and engine casing. In the recycling mode, the three-way valve is connected via the oil discharge line to the waste oil tank, which is connected to the combustion chamber through the spent oil supply line and waste oil dispenser. At the same time waste oil tank is connected with combustion chamber by pressure balancing pipeline.

EFFECT: as a result of using the proposed invention, it becomes possible to exclude the process of draining, removal and processing of waste oil by pumping it into a tank of waste engine oil and, during the working process, its subsequent combustion in the combustion chamber, thereby using it as fuel.

1 cl, 1 dwg