DOUBLE-FUEL AIR-JET ENGINE Russian patent published in 2015 - IPC F02K7/16 

FIELD: engines and pumps.

SUBSTANCE: double-fuel air-jet engine contains an air intake, casing, at least one compressor, a combustion chamber with fuel header and nozzles group, at least one turbine, and at least one shaft connecting the compressor and the turbine, an jet nozzle and system for hydrocarbon fuel supply to the combustion chamber. The nozzles group is installed after the compressor, and is connected with it by the air channel. The engine is equipped with the hydrogen supply system. In the combustion chamber the second nozzles group is made, it is connected with the second fuel header. Casing of the combustion chamber is made in form of the ring heat exchanger with input and output headers. The input header is connected with the hydrogen supply, and the output header is connected with the second fuel header. The turbine installed directly after the combustion chamber is made cooled, and has nozzle assembly with cavity, that by its holes is connected with the external channel. The turbine contains work blades installed on the disk. The work blades are also made cooled. The nozzle assembly cavity is connected by channels with the vortex assembly intended for the cooling air supply to the disk and work blades.

EFFECT: invention increases energetic capacities of the gas-turbine engine, improves the compression ratio of the compressor, thrust force of the engine and improves its specific characteristics.

2 cl, 2 dwg