EXPERIMENTAL HYPERSONIC RAMJET ENGINE Russian patent published in 2004 - IPC

FIELD: rocket engines.

SUBSTANCE: proposed experimental hypersonic ramjet engine has air intake, insulator, combustion chamber, nozzle, fuel system with igniter, injectors and fuel channels. Fuel system contains central fuel pylon and side fuel pylons arranged with separation at angle α≤arcsin(1/M_n) where M_n is Mach number in oncoming flow to longitudinal axis of hypersonic ramjet engine. Outlet holes of fuel channels passing through central pylon are located at upper edges of front side pylons and at igniter. Side pylons are provided with two fuel manifolds. One of said fuel manifolds communicates with system delivering cold fuel and, through nozzles of impact-jet cooling of pylon front edge, with limited by envelope forming front edge of pylon. Other manifold communicates with system delivering fuel heated in chamber walls cooling system and injectors. Invention makes it possible to create experimental hypersonic ramjet engine with rectangular configuration of combustion chamber providing high efficiency of working process, stability of burning over entire range of operating conditions, high stability and dynamic of ignition process.

EFFECT: improved reliability in operation.

4 cl, 5 dwg