Combustion systems and combustion system components for rotary ramjet engines

摘要

The present disclosure relates to combustion systems and components for rotary ramjet engines. An injection system optionally stratified for ease of engine startup provides an air and fuel mixture to a combustion chamber. An ignition system ignites the mixture. A flameholding system may be positioned for communication with the combustion chamber to force an ignited flow of the air and fuel mixture toward a center of rotation within the ramjet engine. The ramjet engine may comprise a diverging stator for improved exhaust efficiency. Ignition may take place in the engine air intake. Alternatively ignition may take place within the combustion chamber using a dual hub electrically charged system. An impulse turbine may use recirculation of injected fuel to cool a rim rotor and/or to reduce windage on the rim rotor. A sealing system may reduce gas leaks from a fuel conduit into the engine air intake.