TURBOJET ENGINE AND COMPOUND ENGINE PROVIDED THEREWITH

摘要

PROBLEM TO BE SOLVED: To obtain a small turbojet engine with a high thrust which can increase the thrust per a unit weight as a rocket engine and a compound engine which can reduce the weight and installation volume of a propulsion system by applying the turbojet engine to the compound engine for a space craft and takeoff and landing at an airfield. SOLUTION: An air compression work is dropped extremely by cooling an inlet air by the cold of an excessive very cold fuel of a theoretical mixing ratio or more and also the entire excessive fuel is suppied to a combustor 3 and the combustion gas flow rate flowing in a turbine 4 is increased and the air compression carried out with a small turbine expansion ratio. Thereby, the pressure of exhaust gas is increased and the thrust is improved. The space between the plural outer walls of the turbo-jet engine is utilized as a ram jet engine.