Propulsion means for hypersonic flight

摘要

Propulsion means includes at least one ram-let engine 2 and at least one further engine, e.g. a turbo-jet engine 3, the internal flow channel of which is independent of that of the ram-jet engine. Prior to aircraft take-off the flow channel 8 of each ram-jet engine 2 is sealed at both ends (e.g. by flaps 6 and 7) and filled via filling device 11 with a liquid fuel component 10 provided for lower speed range. This fuel is completely removed (e.g. by suctioning off device 12) and used up by the engine(s) 3, operating at lower speed ranges prior to ignition of the ram-jet engines 2. When the ram-jet is operating, flap 6 may seal the turbo-jet engine intake while flap 7 helps determine the thrust trail contour 19. IMAGE