Salient Features Of Scramjet Engine And Its Applications For Hypersonic Vehicles

        The scramejet uses a slightly modified Brayton Cycle to produce power, similar to that used for both the classical ramjet and turbine engine. Where Air is compressed and the  fuel injected, mixed and burned to increase the air, the combustion products are Temperature and Pressure then these combustion products are expanded.

For Turbojet engine Air is mechanically compressed by combustor using a turbine. In principle the ramjet and scramjet works the same. Where the forward motion of the vehicle compresses the air then the Fuel injected into the compressed air and burned. Results the high pressure combustion products expand through the Nozzle. Elevating the surface pressure and moving the vehicle forward.