GAS TURBINE ENGINE Russian patent published in 2019 - IPC F02C7/00 B64F5/00 F01D25/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to operation of gas turbine engines in industry as a drive of gas transfer units, in particular to additional devices providing cleaning of flow parts and inner channels of gas turbine engines against contamination and fuel deposits in pipelines. Gas turbine engine comprises combustion chamber with nozzles, self-contained power supply, high pressure source, low pressure source, switching valve of supercharging, single central system of pressurization of supports, each of which includes cavity of supercharging and pre-oil cavity. Charging chambers are interconnected by feed air ducts via switching valve of supercharging with source of high pressure and with source of low pressure, and through air ducts – with each other. According to the proposal, it is equipped with a drain system and an inlet manifold with nozzles installed at the engine inlet to clean it. Supply header is connected to washing solution and water supply systems and discharge compressor, and drain system is communicated with flow part of gas turbine engine. Self-contained power supply via additional pipelines is communicated with supercharging switching valve and combustion chamber nozzles, and on the supply air ducts communicated with the high pressure source and the low pressure source, additional dampers are installed. Collector of supply at the inlet of gas turbine engine can be installed with possibility of rotation from working to neutral position.

EFFECT: implementation of this invention allows to preserve thermodynamic parameters of engine (efficiency, power) throughout its operation due to periodically cleaned engine flow part from contaminants, at that, reducing engine operation costs by excluding oil drain after each engine flushing and reducing engine idle time at new oil filling, as well as by excluding engine disassembly and mechanical cleaning of combustion chamber nozzles; also implementation of this invention allows increasing service life and reliability of engine due to increased resource of oil system elements and combustion chamber.

1 cl, 1 dwg