METHOD OF AND DEVICE FOR OPERATION OF RAMJET ENGINE Russian patent published in 2005 - IPC

FIELD: ramjet engines.

SUBSTANCE: proposed method comes to pumping fuel under pressure through heating device, evaporation and delivery into ejector, ejecting of air from surrounding medium by jet of fuel vapor, compression and delivery of mixture of fuel vapor and air into combustion chamber and combustion of fuel-air mixture in chamber to provide reactive thrust and heating of fuel. Subsequent compression is ensured by use of energy of exhaust gases. Compression of fuel to critical or supercritical state is carried out in cold liquid state. Overheating of vapor to gaseous state and self-igniting temperature of 350-1400°C in oncoming flow of hot gas which is then directed into nozzle of secondary circuit of ejection is effected additionally. To provide combustion, enriched mixture of fuel vapor and air is delivered into combustion chamber. Afterburning of fuel is carried out in secondary circuit if ejector thrust amplifier. Ramjet engine contains fuel charger, air intake with ejector at outlet consisting of mixing chamber and nozzle for atomizing gaseous fuel and ejecting air getting through air intake from surrounding medium, combustion chamber with discharge nozzle and fuel heating device. Engine is provided with straight-flow ejecting generator with combustion chamber. Air intake is made adjustable. Supersonic nozzles are used for atomizing gaseous fuel. Engine is furnished at least with one vapor superheater with gas reflector and reflector fairing, housing of combustion products reverse flow around vapor superheater, device to bypass passing along vapor superheater into nozzles of secondary circuit of ejecting thrust amplifier and electric vapor superheater for starting the engine. Geometrically windening supersonic nozzle used as nozzle of ejecting thrust amplifier is arranged after combustion chamber.

EFFECT: increased efficiency.

5 cl, 6 dwg