GAS TURBINE ENGINE OPERATING ON CRYOGENIC FUEL Russian patent published in 1999 - IPC

FIELD: mechanical engineering; engines. SUBSTANCE: proposed gas turbine engine has combustion chamber made at least of one flue tube with vane swirler and tubular heat exchanger-gasifier. Flue tube in combustion chamber has evaporation chamber formed by two concentrically arranged walls of flue tube connected at outlet with bottom and at inlet with vane swirler. Atomizing holes are made along tubular heat exchanger-gasifier. Vanes of swirler are made hollow. Evaporation chamber communicates with inner space of flue tube through hollow vanes of swirler. Inlet of heat exchanger-gasifier into evaporation chamber is arranged at flue tube outlet. Evaporation chamber has additional cross partition with holes. Inner wall of flue tube has ribs from side of evaporation chamber. EFFECT: provision of high reliability and increased service life owing to improved thermal efficiency of cryogenic fuel at its evaporation and gasification and cooling of walls of combustion chamber and air-gas duct, mainly, turbine blades. 2 cl, 4 dwg